MAX77950EWW [MAXIM]
WPC/PMA Dual Mode Wireless Power Receiver;
| 型号： | MAX77950EWW |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | WPC/PMA Dual Mode Wireless Power Receiver PC 无线 |
| 文件： | 总53页 (文件大小：1193K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EVALUATION KIT AVAILABLE
MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
General Description
Benefits and Features
● WPC/PMA Dual Mode Wireless Power Receiver
The MAX77950 is an advanced wireless power receiver
IC that meets the specification requirements for WPC
low-power (v1.2) and PMA SR1 (v2.0) communication
protocols. This device operates using near-field magnetic
induction when coupled with a WPC or PMA transmitter
and provides output power up to 12 watts.
● Compliant with WPC Low Power (v1.2) and PMA
SR1 (v2.0)
● Peer-to-Peer Power Transmission with In-Band ASK
Communications
● WPC ASK Demodulator/FSK Demodulator
The IC has precision output current and voltage-sensing
scheme over the entire load range. It enables accurate
received power packets, as defined in the WPC specifications
for best foreign object detection (FOD). The IC supports
FSK demodulation to receive PMA advertisement ID as
well as WPC FSK packets.
● Output Programmable Range from 3.5V to 12.7V
with 100mV Step
● Integrated High-Efficiency n-Channel Full-Bridge
Synchronous Rectifier
● Programmable Foreign Object Detection
The IC features the patent-pending PeerPower™ function.
In PeerPower mode, the IC operates as a transmitter,
enabling power transfer to another peer device through
in-band ASK communications.
● Programmable Dynamic Rectifier-Voltage Scaling
● Overvoltage, Overcurrent, and Overtemperature
Protection
The MAX77950 communicates with an application pro-
cessor through an I²C serial interface. The status of power
transfer and alerts are read through this interface.
Ordering Information appears at end of data sheet.
Applications
● Smartphones
● Tablets
● Smart Watches
● Headsets
● Wearable Devices
● Battery-Power Banks
● Wi-Fi Hotspots
● Digital Cameras
● Portable Medical Applications
● Portable Media Players
● Point-of-Sale Devices
● Handheld Devices
PeerPower is a trademark of Maxim Integrated Products, Inc.
19-100003; Rev 0; 3/17
MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TABLE OF CONTENTS
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Benefits and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Simplified Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Bump Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Detailed Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wireless Power Transfer System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rectified-Voltage Control Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PeerPower Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wireless Power Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Clamp Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ASK/FSK Demodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Foreign Object Detection (FOD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Watchdog Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Sending End Power Transfer (EPT)/End of Charge (EOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Sending Proprietary Packets (PPP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CHIP_ID (0x00) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
OTP_REV (0x05) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
STATUS_L (0x06) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
STATUS_H (0x07) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
INT_L (0x08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
INT_H (0x09) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
INT_ENABLE_L (0x0A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
INT_ENABLE_H (0x0B). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
INT_CLEAR_L (0x0C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
INT_CLEAR_H (0x0D). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
CHARGE_STATUS (0x0E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
EPT_REASON (0x0F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
VOUTVAL_H (0x10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
VOUTVAL_L (0x11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Maxim Integrated
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TABLE OF CONTENTS (CONTINUED)
VOUTSET (0x12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
VRECT_ADJ (0x13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
VRECTVAL_H (0x14). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
VRECTVAL_L (0x15). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
ISENSEVAL_H (0x16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
ISENSEVAL_L (0x17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
TDIE_VALUE (0x18) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
OP_FREQ_L (0x19). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
OP_FREQ_H (0x1A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PING_OP_FREQ_L (0x1B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PING_OP_FREQ_H (0x1C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
LDO_ILIMSET (0x1D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
TX_ILIMSET (0x1E). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
SYS_OP_MODE (0x1F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
RX_COM (0x20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
PPP_HEADER (0x21) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RX_DATA_VALUE0 (0x22) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RX_DATA_VALUE1 (0x23) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RX_DATA_VALUE2 (0x24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RX_DATA_VALUE3 (0x25) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RX_DATA_VALUE4 (0x26) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
FSK_DATA_VALUE0 (0x27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
FSK_DATA_VALUE1 (0x28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
FSK_DATA_VALUE2 (0x29) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
TX_FOP_SET_L (0x2A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
TX_FOP_SET_H (0x2B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
TX_FOP_TON_SET_L (0x2C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
TX_FOP_TON_SET_H (0x2D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
TX_WPC_HEADER (0x34) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
TX_WPC_DATA0 (0x35) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
TX_WPC_DATA1 (0x36) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
TX_WPC_DATA2 (0x37) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
TX_WPC_DATA3 (0x38) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
TX_WPC_DATA4 (0x39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
TX_WPC_DATA5 (0x3A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
TX_WPC_DATA6 (0x3B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
TX_WPC_DATA7 (0x3C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
TX_WPC_CHECKSUM (0x3D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TABLE OF CONTENTS (CONTINUED)
FOD_X0 (0x3E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
FOD_Y0 (0x3F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
FOD_X1 (0x40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
FOD_Y1 (0x41). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
FOD_X2 (0x42) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
FOD_Y2 (0x43) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
FOD_X3 (0x44) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
FOD_Y3 (0x45) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
FOD_X4 (0x46) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
FOD_Y4 (0x47). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
FOD_X5 (0x48) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
FOD_Y5 (0x49) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
FOD_X6 (0x4A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
FOD_Y6 (0x4B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
FOD_X7 (0x4C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
FOD_Y7 (0x4D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
FOD_X8 (0x4E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
FOD_Y8 (0x4F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
FOD_X9 (0x50) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
FOD_Y9 (0x51). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FOD_X10 (0x52) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FOD_Y10 (0x53). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FOD_X11 (0x54). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FOD_Y11 (0x55). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FOD_X12 (0x56) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FOD_Y12 (0x57). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FOD_X13 (0x58) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FOD_Y13 (0x59). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FOD_X14 (0x5A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FOD_Y14 (0x5B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
FOD_X15 (0x5C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
FOD_Y15 (0x5D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
OV_CLAMP_VOLTAGE (0x62) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
TX_LAST_CEP (0x63). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
TX_LAST_RPP (0x64). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
TX_LAST_PCHP (0x65) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
LDO_WPDET_CNFG (0x70) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TABLE OF CONTENTS (CONTINUED)
VRECT_TARGET_X0 (0xBA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
VRECT_TARGET_Y0 (0xBB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
VRECT_TARGET_PMA_Y0 (0xBC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
VRECT_TARGET_X1 (0xBD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
VRECT_TARGET_Y1 (0xBE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
VRECT_TARGET_PMA_Y1 (0xBF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
VRECT_TARGET_X2 (0xC0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
VRECT_TARGET_Y2 (0xC1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
VRECT_TARGET_PMA_Y2 (0xC2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
VRECT_TARGET_X3 (0xC3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
VRECT_TARGET_Y3 (0xC4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
VRECT_TARGET_PMA_Y3 (0xC5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
VRECT_TARGET_X4 (0xC6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
VRECT_TARGET_Y4 (0xC7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
VRECT_TARGET_PMA_Y4 (0xC8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
VRECT_TARGET_X5 (0xC9). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
VRECT_TARGET_Y5 (0xCA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
VRECT_TARGET_PMA_Y5 (0xCB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
VRECT_TARGET_X6 (0xCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
VRECT_TARGET_Y6 (0xCD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
VRECT_TARGET_PMA_Y6 (0xCE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
VRECT_TARGET_X7 (0xCF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
VRECT_TARGET_Y7 (0xD0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
VRECT_TARGET_PMA_Y7 (0xD1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
PMA_ADV_DATA (0xDB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
PMA_ADV_CRC (0xDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Typical Application Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
LIST OF FIGURES
Figure 1. Wireless Power Transfer System Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 2. Rectified Voltage Profile vs. Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3. System-Level Block Diagram in PeerPower Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 4. External Circuits for Envelope Detection, Level Shifting, and AC Coupling . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 5. FOD Coefficients vs. Load Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Simplified Block Diagram
MAX77950
V
RECT
15nF BOOT1
Cs
AC1
AC2
BOOT2
SYNC-
RECTIFIER/
INVERTER
10µF x 3
10µF x 2
PRECLAMP /
DC LOAD
Ls
Cd
V
OUT
15nF
LDO/
PeerPower
SWITCH/
FSK
DEMODULATION
WP DETECTION
WP_DET
CLAMP1
CLAMP2
COMM1
COMM2
ASK
MODULATOR/
OV CLAMP
V
CC
DD
LDO V
LDO V
CC
DD
1µF
DMODIN
BPF FILTER/ASK
DEMODULATOR
V
FSM
1µF
1µF
ADCREF
1µF
12 BIT ADC
V1P8
LDO 1.8V
SYS_I/O
P2PEN
DIS
SCL
SDA
INT
2
I C SLAVE
SBIAS/ REF
AGND
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│ 6
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Absolute Maximum Ratings
AC1, AC2 to PGND...............................................-0.3V to +20V
DMODIN to AGND.......................................-0.3V to V
ADCREF to AGND ......................................-0.3V to V
DNC.............................................................-0.3V to V
AGND to PGND....................................................-0.3V to +0.3V
AC1, AC2 Current.................................................................2.5A
+ 0.3V
+ 0.3V
+ 0.3V
CC
DD
CC
V
, V
to PGND.........................................-0.3V to +20V
RECT OUT
COMM1, COMM2, CLAMP1, CLAMP2 to PGND.-0.3V to +20V
BST1, BST2 to PGND...........................................-0.3V to +25V
Differential ABS-MAX: BST1 to AC1, BST2 to AC2 ..........+4.5V
V
V
to AGND .......................................................-0.3V to +4.5V
to AGND .....................................................-0.3V to +1.65V
V
Current ....................................................... -1.5A to +1.5A
CC
OUT
COMM1, COMM2....................................................................1A
CLAMP1, CLAMP2...............................................................1.5A
Operating Ambient Temperature Range............. -40°C to +85°C
Junction Temperature....................................... -40°C to +150°C
Soldering Temperature (reflow).......................................+260°C
DD
V1P8 to AGND .....................................................-0.3V to +4.5V
SCL, SDA, INT to AGND......................................-0.3V to +4.5V
DIS to AGND.............................................-0.3V to V1P8 + 0.3V
WP_DET to AGND ....................................-0.3V to V1P8 + 0.3V
P2PEN to AGND .......................................-0.3V to V1P8 + 0.3V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
Package Code
W546A9+1 (6x9, 0.4mm pitch)
21-100082
Outline Number
Land Pattern Number
Refer to Application Note 1891
THERMAL RESISTANCE, FOUR-LAYER BOARD:
Junction to Ambient (θ
)
40°C/W
N/A
JA
Junction to Case (θ
)
JC
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Electrical Characteristics
(V
= 3V to 20V, T = -40°C to +85°C, unless otherwise noted, limits are 100% tested at T = +25°C; limits over the operating
RECT
A
A
temperature range and relevant supply voltage range are guaranteed by design and characterization, unless otherwise noted.)
PARAMETER
Input Supply Current
Disable Supply Current
Disable supply Current
SYMBOL
CONDITIONS
MIN
TYP
5
MAX
UNITS
mA
I
No load
VRECT
I
I
DIS = 1, V
DIS = 1, V
= 5V
2.1
2.2
mA
VRECT_SHDN
RECT
= 20V
mA
VRECT_SHDN
RECT
Undervoltage Lockout
Threshold
V
V
rising
2.4
2.9
V
UVLO
RECT
Undervoltage Lockout
Hysteresis
V
400
800
mV
kΩ
UVLO_HYS
Internal Pulldown Resistance
for DIS and P2PEN
R
Pulldown resistance to AGND
400
1600
PD
VOLTAGE REGULATORS
V
4.06
1.496
1.71
4.275
1.575
1.8
4.49
1.65
1.89
Voltage Regulator for
Internal Blocks
CC
DD
V
V
V
V1P8 Voltage Regulator
V1P8
I
= 20mA
V1P8
LDO
HV LDO Input Voltage
Range
V
3
20
V
RECT
V
Programmable
OUT
V
100mV step
= 0mA
3.5
12.7
V
V/ms
%
OUTPRG
2
Range Through I C
HV LDO Startup Rate
t
I
0.5
0.1
LDOSTUP
OUT
LDO_VOUTSET[6:0] = 0x32, I
= 1mA;
OUT
HV LDO Line Regulation
∆V
/∆V
OUT IN
V
= 6V to 12V
RECT
LDO_VOUTSET[6:0] = 0x32, I
1A, V = 5.2V
= 1mA to
OUT
HV LDO Load Regulation
HV LDO Load Transient
HV LDO Dropout Voltage
∆V
/∆I
0.5
±8
%
%
OUT OUT
RECT
I
= 1mA to 1A and 1A to 1mA within 20µs
OUT
LDO_VOUTSET[6:0] = 0x32, I
= 1A,
OUT
V
100
1.5
+2
mV
DO
V
= V
–V
DO
RECT OUT
LDO_ILIMSET[4:0] = 0x1A, LDO_VOUT-
HV LDO Current Limit
I
SET[6:0] = 0x32, V
+4.8V
= +5.1V, V =
OUT
1.1
-2
A
LIM
RECT
Output Voltage Initial
Accuracy
LDO_VOUTSET[6:0] = 0x32, I
= 1mA,
OUT
V
%
OUT_ACC
T
= +25°C
A
COMM PINS
COMMn On-Resistance
COMMn Leakage Current
CLAMP PINS
R
1
Ω
COMM
I
V
= V
= 20V, T = +25°C
1
1
μA
COMM
COMM1
COMM2
A
CLAMPn On-Resistance
CLAMPn Leakage Current
OVP Preclamp Threshold
R
0.5
16
Ω
μA
V
CLAMP
I
V
V
= V
= 20V, T = +25°C
CLAMP
CLAMP1
CLAMP2 A
OVLO
rising
RECT
PRECLAMP
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│ 8
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Electrical Characteristics (continued)
(V
= 3V to 20V, T = -40°C to +85°C, unless otherwise noted, limits are 100% tested at T = +25°C; limits over the operating
RECT
A
A
temperature range and relevant supply voltage range are guaranteed by design and characterization, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYNCHRONOUS RECTIFIER
High-Side Switch
On-Resistance
R
50
50
mΩ
mΩ
ON_HS
Low-Side Switch
On-Resistance
R
ON_LS
ADC
ADC Reference Voltage
Initial ADC Accumulated
V
No load
1.237
-1
1.25
1.262
+1
V
ADC_REF
V
= 3V to 15V, production tested at
RECT
ADC_ERR_VRECT
ADC_ERR_VOUT
%
Error for V
3.5V, 7.5V, and 14.5V
V = 3.6V to 10V, production tested at
OUT
RECT
Initial ADC Accumulated
Error for V
-1
+1
%
3.5V, 6.5V, and 9.5V
OUT
Initial ADC Accumulated
Error for ISNS
ADC_ERR_ISNS Current range 0 to 1A, T = +25°C
-10
+10
mA
A
DEMODULATOR
DMODIN Input Resistance
0.7
mΩ
DMODIN Minimum
Detectable Input Voltage
200
mV
THERMAL PROTECTION
Thermal Shutdown
T
T rising
165
10
°C
°C
JOFF
J
Thermal-Shutdown
Hysteresis
T
T falling
J
JOFFHYS
Temperature-Warning
Threshold
T
120
°C
V
JWARN
LOGIC OUTPUT
WP_DET Output High
Voltage
V1P8 -
0.4
Source current 5mA
WP_DET Output
Low Voltage
Sink current 5mA
Sink current 20mA
0.4
0.4
V
V
INTB Output Low Voltage
LOGIC INPUT
V
OL
P2PEN Input High Voltage
P2PEN Input Low Voltage
1.4
1.4
V
V
0.4
1
P2PEN Input Leakage
Current
μA
DIS Input High Voltage
DIS Input Low Voltage
DIS Input Leakage Current
V
V
0.4
1
μA
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│ 9
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Electrical Characteristics (continued)
(V
= 3V to 20V, T = -40°C to +85°C, unless otherwise noted, limits are 100% tested at T = +25°C; limits over the operating
RECT
A
A
temperature range and relevant supply voltage range are guaranteed by design and characterization, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
I C INTERFACE
SCL, SDA Input
High Voltage
V
1.4
V
IH
SCL, SDA Input
Low Voltage
V
0.4
V
V
IL
SCL, SDA Input Hysteresis
V
0.2
10
HYS
SCL, SDA Input Leakage
Current
I
0.1 x V
< SCL/SDA < 0.9 x V
DD
-1
+1
μA
I
DD
SDA Output Low Voltage
SCL, SDA Pin Capacitance
Output Fall Time from
V
Sinking 10mA
0.4
V
OL
C
pF
I
t
300
400
ns
kHz
μs
OF
V
to V
IL
IH
Clock Frequency
f
0
SCL
Hold Time Repeated
Start Condition
t
Note 4
0.6
HD;STA
SCL Low Period
SCL High Period
t
1.3
0.6
μs
μs
LOW
t
HIGH
Setup Time Repeated
Start Condition
t
0.6
μs
SU_STA
Data Hold Time
Data Setup Time
t
Note 5
0
0.9
μs
HD_DAT
t
100
ns
SU_DAT
Setup Time for STOP
Condition
t
0.6
1.3
μs
SU_STO
Bus Free Time Between
STOP and START Condition
t
μs
μs
μs
pF
ns
BUF
Data Valid Time
t
0.9
0.9
VD:DAT
VD:ACK
Data Valid Acknowledge
Time
t
Bus Capacitance
C
550
B
Pulse Width of Suppressed
Spikes
Maximum pulse width of spikes that must be
suppressed by the input filter
t
50
SP
Note 1: Limits are 100% production tested at T = +25°C. Limits over the operating temperature range and relevant supply voltage
A
range are guaranteed by design and characterization.
Note 2: All voltages are referenced to AGND.
Note 3: Test is performed on unmounted/unsoldered ports.
Note 4: f
must meet the minimum clock low time plus the rise/fall times.
SCL
Note 5: The maximum t
has to be met only if the device does not stretch the low period (t
) of the SCL signal.
HD:DAT
LOW
Maxim Integrated
│ 10
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Typical Operating Characteristics
(Using WPC A11 and PMA 7 transmitters at T = +25°C, unless otherwise noted.)
A
PMA MODE NO LOADSTART-UP
WPC MODE NO LOAD START-UP
toc02
toc01
2V/div
2V/div
V
RECT
AC1
2V/div
2V/div
V
RECT
AC1
2V/div
2V/div
V
V
OUT
OUT
200ms/div
200ms/div
RECTIFIER VOLTAGEIN WPC MODE
WPC MODE DC-DC EFFICIENCY
PMA MODE DC-DC EFFICIENCY
toc05
toc03
toc04
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
RECTIFIER VOLTAGEIN PMA MODE
WPC FOREIGN OBJECT DETECTION
PeerPower MODE DC-DC EFFICIENCY
toc06
toc07
toc08
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
90
80
70
60
50
40
30
20
10
0
0
-50
Center
Left
Up
Down
Right
-100
-150
-200
-250
-300
-350
-400
COIL PART NUMBER
Tx:SUNLORD SWA30N30H20C01B
Rx: SUNLORD SWA30R30H08C01B
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
Maxim Integrated
│ 11
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Bump Configuration
TOP VIEW
(BUMP SIDE DOWN)
1
2
3
4
5
6
COMM1
DNC
SCL
ADCREF
DNC
COMM2
A
CLAMP1
P2PEN
N.C.
SDA
AGND
DIS
CLAMP2
PGND
B
PGND
INT
WP_DET
V
DD
C
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
D
E
F
V
V
RECT
V
RECT
V
RECT
V
RECT
V
RECT
RECT
V1P8
BST2
AC2
V
V
V
RECT
CC
RECT
BST1
AC1
AC1
AC1
DNC
DNC
DMODIN
AC2
AC2
G
H
DNC
PGND
PGND
PGND
PGND
PGND
PGND
J
( 52-Bump WLP, 0.4mm pitch )
Maxim Integrated
│ 12
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Bump Description
PIN
NAME
FUNCTION
TYPE
A1
COMM1
Open-Drain Output. Achieves the AC modulation to communicate with the Tx.
Digital Output
A2, A5, G3,
H3, H4
DNC
Do Not Connect. Leave open in system.
Analog I/O
2
A3
A4
A6
SCL
I C Clock Input
Digital Input
Analog Output
Digital Output
ADCREF ADC Reference Voltage. Bypass to ground with a 1μF ceramic capacitor.
COMM2
Open-Drain Output. Achieves the AC modulation to communicate with the Tx.
Open-Drain Outputs. Switches to modulate ASK to communicate with Tx. Turns on
when V
B1
CLAMP1
Digital Output
overvoltage event occurs.
RECT
B2
B3
B4
B5
P2PEN
SDA
PeerPower function active-high enable input.
Digital Input
Digital I/O
Ground
2
I C Data Input/Output
AGND
DIS
Analog Reference Ground. "Star-ground" connection to system GND.
Disable Pin, Active-High
Digital Input
Open-Drain Outputs. Switches to modulate ASK to communicate with Tx. Turns on
B6
CLAMP2
Digital Output
when V
overvoltage event occurs.
RECT
C1, C6, J1– J6
PGND
N.C.
Power Ground
Ground
C2
C3
C4
Not Internally Connected. Can connect to power, ground, or leave open.
Open-Drain, Active-Low Interrupt Output
No Connect
Digital Output
Digital Output
INT
WP_DET Wireless Power Detected Output. Active-high
+1.575V linear regulator low ripple output for internal use. Bypass to ground with a
1μF ceramic capacitor.
C5
V
Power Output
Power I/O
DD
D1–D6
V
Linear Regulator Output. Bypass to ground with two 10μF capacitors.
OUT
E1, E2, F2–F5,
E5, E6
Rectifier's Output. Bypass to ground with three 10μF and one 100nF ceramic
capacitor.
V
Power I/O
RECT
+4.275V linear regulator low ripple output for internal use. Bypass to ground with a
1μF ceramic capacitor.
F1
F6
V
Power Output
Power Output
CC
+1.8V linear regulator low ripple output. Bypass to ground with a 1μF ceramic
capacitor.
V1P8
G1
G2, H1, H2
G4
BST1
AC1
Bootstrap pin for rectifier's high side n-channel FET gate driver.
Rectifier Input. Connect to receiver LC tank.
Analog Output
Power Input
Analog Input
Power Input
Analog Output
DMODIN
AC2
Amplitude Shift Keying Demodulator Input
G5, H5, H6
G6
Rectifier Input. Connect to receiver LC tank.
BST2
Bootstrap pin for rectifier's high side n-channel FET gate driver
Maxim Integrated
│ 13
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Functional Diagram
BOOT1
V
V
V
OUT
OUT
OUT
SYNC-RECTIFIER / INVERTER
VREF
V
OUT
V
RECT
HV-LDO /
PeerPower SWITCH
DC-LOAD/
PRECLAMP
Q2
Q4
Q1
Q3
AC1
AC1
AC1
V
OUT
V
OUT
V
OUT
RECTIFIER/
INVERTER
CONTROLLER
ILIM
ISNS
AC2
AC2
AC2
FSK
DEMOD
FSM
P2PEN
BOOT2
V
RECT
LDO V
CC
CLAMP1
CLAMP2
(4.275V)
VCC
UVTH
VOK
V
RECT
OVP
V
CC
MAX77950
LDO V
DD
Q7
Q8
V
DD
(1.575V)
BIAS, BG/
SBIAS
LDO
(1.8V)
V1P8
DIS
COMM1
COMM2
ASK
MODULATOR
COMM
TDIE
Q5
Q6
MAIN FSM FOR WPC/PMA Rx
FUNCTIONALITY
LOWPASS
FILTER
HIGHPASS
FILTER
AFE ASK
DEMODULATOR
DMODIN
64MHz
4MHz
PLL
(16x)
OSC
(4MHz)
DNC
DNC
DNC
DNC
DNC
TEST
CONTROLLER
INT
ADC
SEQUENCER
2
REGISTER
BANK
SCL
SDA
I2C SLAVE
ISNS
V
RECT
12
ADC
MUX
12-BIT
ADC
OTP
N.C.
V
OUT
TDIE
1.25V
ADC REF
Maxim Integrated
│ 14
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
is modulated as the receiver communicates, which is cap-
tured as load modulation by the primary coil. The trans-
mitter changes frequency, duty cycle, or even voltage
input of the power inverter to meet the demand of power
that the receiver requests through the communication.
Detailed Description
Wireless Power Transfer System Overview
A wireless power system consists of a base station on
the primary side and a power receiver on the secondary
side, as shown in Figure 1. The base station (referred
to as a power transmitter), comprises a power conver-
sion unit, primary coil, communications demodulator, and
control unit. The power receiver comprises a secondary
coil, power pick-up unit, communications modulator, and
controller.
In WPC mode, the transmitter detects the modulation of
the current and/or voltage across the primary coil and
demodulates communication messages known as pack-
ets. A few examples of WPC packets are control error
packet, received power packet, and end power transfer
packet. The digital communication scheme, in the WPC
protocol, utilizes differential bi-phase encoding as ONE
and ZERO bits are transferred from the secondary to pri-
mary at a rate of 2kbps.
When the receiver is placed on top of the transmitter’s
interface surface, the magnetic field that is generated
by the primary coil induces a voltage on the secondary
coil when the coils are magnetically coupled together.
The output voltage of the receiver is regulated, and the
received power is controlled through the communications
and control unit in the receiver. The receiver communi-
cates with the transmitter for requesting increased power,
decreased power, no change in power transfer, or power-
transfer termination. This communication is conducted in-
band between the coils and is digitally overlaid on top of
the power signal. The impedance on the secondary side
The PMA communication protocol operates continuously
to transmit symbol messages that are encoded through
frequency-based modulation. The receiver can send six
different types of symbols to the transmitter using different
frequency rates between 250Hz and 8kHz. They include
decrement (DEC), increment (INC), no change (NoCh),
end of charge (EOC), MsgBit, and a proprietary symbol
intended for future use.
POWER
TRANSFER
PRIMARY
COIL
SECONDARY
COIL
VOLTAGE/
CURRENT
REGULATOR
DC OUTPUT
DC INPUT
POWER
INVERTER
RECTIFIER
VOLTAGE/
CURRENT
SENSE
POWER
INTERFACE
SURFACE
VOLTAGE/
CURRENT
SENSE
COMMUNICATION
MODULATOR
CONTROL
ALGORITHMS
AND WPC, PMA
PROTOCOLS
POWER
CONTROL
ALGORITHMS
/ WPC, PMA
PROTOCOLS
POWER
CONVERSION
UNIT
DEMODULATOR
BASE STATION
POWER PICK-UP UNIT
POWER RECEIVER
COMMUNICATIONS
AND CONTROL UNIT
COMMUNICATION
Figure 1. Wireless Power Transfer System Diagram
Maxim Integrated
│ 15
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
The following equation calculates the V
on linear interpolation between the adjacent coefficients:
target based
Rectified-Voltage Control Loop
RECT
The rectified voltage (V
) is regulated by a closed
RECT
control loop between the wireless power transmitter (base
station) and the wireless power receiver (mobile device).
To achieve the best compromise between optimal effi-
ciency and output load transient response, the rectified
voltage is regulated based on the output current. The
x−x
y −y
(
)(
)
n−1
n
n−1
y
=
y
+
n−1
x
−x
n
n−1
Where X is the actual output current reading:
V
profile versus the load can be programmed in the
RECT
X
A × 255 × 0.73
( )
n
following user registers, as shown in Figure 2.
VRECT_TARGET_X
=
n
1.25
The V target voltage is stored in eight 8-bit reg-
RECT
Y
V × 255
( )
isters allocated for WPC mode (VRECT_TARGET_Y0
to VRECT_TARGET_Y7) and eight 8-bit registers allo-
cated for PMA mode (VRECT_TARGET_PMA_Y0 to
VRECT_TARGET_PMA_Y7). The output current is divid-
ed into eight thresholds which are stored in the registers
VRECT_TARGET_X0 to VRECT_TARGET_X7. Different
n
VRECT_TARGET_Y
=
n
1.25 × 12
Y
V × 255
( )
n
VRECT_TARGET_PMA_Y
=
n
1.25 × 12
PeerPower Function
V
RECT
target profiles are used for WPC and PMA due to
Overview
the different power transfer profile characteristics.
The PeerPower function enables one mobile device to
charge another mobile device wirelessly. Figure 3 shows
the main concept.
The MAX77950 is a highly configurable wireless power IC
that allows the user to reconfigure the rectifier into a full-
bridge inverter, achieving high-efficiency power transfer
)
)
0
Y
1
)
Y
-
1
,
)
)
0
Y
2
7
,
Yn
X
Y
Y
(
1
,
,
,
X
2
)
1
(
7
-
X
(
X
Yn
(
Xn
,
due to low R
of the power MOSFETs.
(
DS(ON)
Y
Xn
(
Once P2PEN is pulled high, the switch located between
and V is turned on and the inverter generates
V
OUT
RECT
a digital ping repeatedly. The IC continues power transfer
once it receives the signal strength packet and also termi-
nates power transfer after the end power transfer packet
is received. A demodulated packet is stored in the regis-
ters (such as TX_WPC_HEADER, TX_WPC_DATA0/../7)
until the next packet comes.
X
X0
X1
X2
Xn-1
X
Xn
X7
I
[A]
OUT
Figure 2. Rectified Voltage Profile vs. Output Current
MOBILE DEVICE IN Tx MODE
MOBILE DEVICE IN Rx MODE
5V TO 10V
INPUT
POWER
V
OUT
SWITCH
INVERTER
ASK
RECTIFIER
LDO
Rx-COIL
Tx-COIL
ASK
DEMODULATOR
MODULATOR
COMMUNICATION
(ASK)
APPLICATION PROCESSOR
OR HOST µC
APPLICATION PROCESSOR
OR HOST µC
Figure 3. System-Level Block Diagram in PeerPower Mode
Maxim Integrated
│ 16
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
In PeerPower mode, the IC can generate interrupts in
power transfer phase whenever it receives WPC packets
that are non-zero CEP, RPP, CSP, EPT, and PPP so that
an application processor or microcontroller notices it. To
make this, a user needs to enable the ASK_DEMOD_PT_
INT_EN bit. Then, INT goes low and the ASK_DEMOD_
PT bit is set whenever the IC receives packets in power
transfer phase.
DMODIN
AC1
(FROM COIL)
To operate the IC in PeerPower mode, the following steps
must be followed:
Figure 4. External Circuits for Envelope Detection, Level
Shifting, and AC Coupling
1) Supply an input voltage to the output of the LDO
(V
pin).
OUT
by modulating the impedance of the receiver coil with
communication capacitors. The function of the IC's ASK
demodulator is to detect the 2kHz communication signal
from the power signal.
2) Program initial frequency into TX_FOP_SET_H/L;
otherwise, the inverter will operate at 125kHz since it
is the default frequency.
3) Pull P2PEN pin high to make LDO be a switch and
run the inverter.
The external circuits, shown in Figure 4, are required for
the ASK demodulation in PeerPower mode. If the user
application does not require PeerPower mode, the circuit
is not necessary, so connect the DMODIN pin to GND.
Wireless Power Detection Function
The IC offers a WP_DET output that is a power-good indi-
cator that monitors the V
level. The WP_DET output
OUT
The IC can demodulate the PMA advertising packet and
WPC FSK with the FSK demodulation block.
goes high once V
exceeds the level programmed in
OUT
WPDET_H_Threshold[1:0] and it goes low once V
drops down to the level programmed in WPDET_L_
Threshold[1:0].
OUT
The IC demodulates WPC FSK by using positive (+)
polarity with modulation depth 0 following WPC Power
Class 0 specification, version 1.2.1.
Clamp Function
Foreign Object Detection (FOD)
An overvoltage event may occur when the mobile device
is moved over the transmitter’s surface, or when partially
removed from the mobile device and quickly placed on
the power transmitter. In addition, it may occur during
the ping stage in PMA mode. The IC has preclamp and
clamp features to limit the rectifier-output voltage as an
overvoltage protection. The preclamp pulls 250mA from
As stated in the WPC specifications, a foreign object is
defined as any object positioned on the interface surface
of a base station but not part of the mobile device, such
as coins, keys, or other metals. If the foreign object is
within the active area, it may heat up during the power
transfer, due to eddy currents, resulting from the oscil-
lating magnetic field. Power loss is the key to detecting
foreign objects and limiting the power loss on a wireless
power system actually limits the heat. To start a power-
transfer cycle during the selection phase, the transmit-
ter detects and locates objects that are placed on the
interface surface and attempts to differentiate between
the foreign objects and a possible power receiver device.
Once the wireless power receiver is discovered and the
power transmitter completes the identification and the
configuration phase, the power receiver reports to the
power transmitter its received power in a received power
V
RECT
to PGND when the voltage on V
exceeds
RECT
16V. If the rectifier-output voltage reaches 17V, even after
the preclamp is activated, the IC turns on FETs between
CLAMP1/2 and PGND as an additional protection. The
preclamp and the clamp thresholds are both program-
2
mable through I C.
ASK/FSK Demodulation
The IC contains an ASK demodulation block that demodu-
lates WPC ASK in PeerPower mode. In WPC, transmitted
power is coupled to the receiver coil. When the receiver is
powered up, it communicates with the transmitter at 2kHz
packet (P
).
RECEIVED
Maxim Integrated
│ 17
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
The received power (P ) equals the power available
PR
Between each coordinate, the values are interpolated
linearly, as shown in the following equation:
from the output of the power receiver, plus any power lost
in producing that output power. For example, the power
loss includes, but is not limited to:
x−x
y −y
(
)(
)
n−1
n
n−1
y
=
y
+
n−1
x
−x
n
n−1
● Power loss in the secondary coil and series resonant
capacitor
Equations for the FOD register are:
● Power loss in the shielding of the power receiver
● Power loss in the rectifier
X
A × 255 × 0.73
( )
n
FOD_X
=
n
1.25
● Power loss in any post-regulation stage
● Eddy current loss in metal components or contacts
Y
W × 128 × 2
)
(
n
within the power receiver
FOD_Y
=
n
10
The IC complies with the WPC low-power (v1.2) requirement:
P
– 350mW ≤ P
≤ P
PR RECEIVED
RECEIVED
Watchdog Function
This means that the reported received power is an over-
estimate of the actual received power, by 350mW, where
The IC supports a watchdog function that disables the main
LDO output in case the watchdog timer expires. When the
WDOG_INT_EN bit is set, it enables the watchdog function
as well as the associated interrupt (WDOG_INT). The
default timer is 41.5s. To keep the main LDO outputs
after setting the WDOG_INT_EN bit, an application
processor must periodically set the WDOG_INT_CLR bit
before the timer expires. If the WDOG_INT_CLR bit is
set, the timer is reset, and the WDOG_INT bit cleared.
This feature prevents the IC from supplying power to a
charger when the application processor freezes. To turn
the main LDO back on, the application processor needs to
set the WDOG_INT_CLR and Toggle_LDO bits. The timer
options are programmable by OTP.
P
PR
is the actual received power determined by the
mobile device by measuring its load power and adding the
estimated parasitic power losses.
The IC has high-precision output current-sensing capa-
bilities and accurate V
control over the operating
RECT
load, ensuring they are sufficient to estimate the received
power and comply with WPC (v1.2) FOD requirements.
The IC provides registers that are FOD_Xn and FOD_Yn
as part of the received power look-up table (LUT). Based
on this LUT, the state machine sends a received power
packet that is specified in the WPC requirements.
FOD_Xn stores 16 X-coordinates for output current val-
ues and FOD_Yn stores 16 Y-coordinates of received
power values so it makes 16 pairs of coordinates, as
shown in Figure 5.
Sending End Power Transfer (EPT)/End of
Charge (EOC)
The WPC EPT packet and the PMA EOC symbol is sent
to a transmitter only by setting SEND_EPT bit 1 in RX_
COM register (address : 0x20) or pulling the DIS pin high.
The IC state machine does not send EPT or EOC by itself.
)
)
0
Y
1
)
)
Y
-
1
,
)
0
Y
2
15
Sending Proprietary Packets (PPP)
,
Yn
X
Y
Y
(
1
,
,
,
X
2
)
1
(
-
X
(
15
Yn
The IC supports PPP, that is defined in the WPC
specifications. The maximum length of a PPP is 5 bytes
of messages. An example procedure for sending a PPP
(3 bytes of messages) is as follows:
X
Xn
,
(
(
Y
Xn
(
1. Write 0x38 in PPP_HEADER[7:0]
X
X0
X1
X2
Xn-1
X
Xn
X15
2. Write the first message in RX_DATA_VALUE0[7:0]
3. Write the second message in RX_DATA_VALUE1[7:0]
4. Write the third message in RX_DATA_VALUE2[7:0]
5. Set SEND_RX_DATA bit in RX_COM[7:0]
I
[A]
OUT
Figure 5. FOD Coefficients vs. Load Current
Maxim Integrated
│ 18
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Register Map
ADDRESS
NAME
MSB
LSB
FUNCTIONAL
0x00
0x05
CHIP_ID[7:0]
CHIP_ID[7:0]
OTP_REV[7:0]
OTP_REV[7:0]
STAT_
VOUT
STAT_
VRECT
STAT_
WDOG
OVER_
VOLTAGE CURRENT
OVER_
0x06
0x07
0x08
STATUS_L[7:0]
STATUS_H[7:0]
INT_L[7:0]
FSK_RCVDRESERVEDRESERVED
OVER_ TX_OVER_ TX_OVER_
TEMP
ASK_DE- ASK_DE- ASK_DE-
MOD_PINGMOD_IDCF MOD_PT
RESERVED TX_CONN
CURRENT
TEMP
VRECT_
INT
FSK_
RCVD_INT
VOUT_INT
WDOG_INT
RESERVEDRESERVED OV_INT
OC_INT
ASK_DE- ASK_DE- ASK_DE-
TX_OC_
INT
TX_CONN_
0x09
0x0A
INT_H[7:0]
OT_INT
TX_OT_INTRESERVED
MOD_
MOD_
MOD_PT_
INT
INT
PING_INT IDCF_INT
FSK_
VOUT_
INT_EN
VRECT_
INT_EN
WDOG_
INT_EN
OV_INT_ OC_INT_
INT_ENABLE_L[7:0]
RCVD_ RESERVEDRESERVED
INT_EN
EN
EN
ASK_DE- ASK_DE-
ASK_DE-
MOD_PT_
INT_EN
OT_INT_ TX_OC_
TX_OT_
INT_EN
TX_CONN_ MOD_
MOD_
0x0B
0x0C
INT_ENABLE_H[7:0]
INT_CLEAR_L[7:0]
INT_CLEAR_H[7:0]
RESERVED
EN
INT_EN
INT_EN PING_INT_ IDCF_INT_
EN
EN
FSK_
VOUT_
VRECT_
WDOG_
OV_INT_ OC_INT_
RCVD_ RESERVEDRESERVED
INT_CLR
INT_CLR INT_CLR INT_CLR
CLR
CLR
ASK_DE- ASK_DE-
ASK_DE-
MOD_PT_
INT_CLR
OT_INT_ TX_OC_
TX_OT_
TX_CONN_ MOD_
MOD_
0x0D
0x0E
RESERVED
CLR
INT_CLR INT_CLR
INT_CLR PING_INT_ IDCF_INT_
CLR
CLR
CHARGE_STA-
TUS[7:0]
CHARGE_STATUS[7:0]
0x0F
0x10
0x11
EPT_REASON[7:0]
VOUTVAL_H[7:0]
VOUTVAL_L[7:0]
EPT_REASON[7:0]
VOUTVAL[11:4]
RESERVED[3:0]
VOUTVAL[3:0]
RE-
SERVED
0x12
VOUTSET[7:0]
VOUTSET[6:0]
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
VRECT_ADJ[7:0]
VRECTVAL_H[7:0]
VRECTVAL_L[7:0]
ISENSEVAL_H[7:0]
ISENSEVAL_L[7:0]
TDIE_VALUE[7:0]
OP_FREQ_L[7:0]
OP_FREQ_H[7:0]
VRECT_ADJ[7:0]
VRECTVAL[11:4]
RESERVED[3:0]
RESERVED[3:0]
VRECTVAL[3:0]
ISENSEVAL[3:0]
ISENSEVAL[11:4]
TDIE_VALUE[7:0]
OP_FREQ[7:0]
OP_FREQ[15:8]
PING_OP_
FREQ_L[7:0]
0x1B
PING_OP_FREQ[7:0]
Maxim Integrated
│ 19
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Register Map (continued)
ADDRESS
NAME
MSB
LSB
PING_OP_
FREQ_H[7:0]
0x1C
PING_OP_FREQ[15:8]
0x1D
0x1E
0x1F
LDO_ILIMSET[7:0]
TX_ILIMSET[7:0]
RESERVED[2:0]
RESERVED[2:0]
LDO_ILIMSET[4:0]
TX_ILIMSET[4:0]
SYS_OP_MODE[7:0]
SYS_OP_MODE[7:0]
SEND_
CHARGE_ SEND_EPT
STATUS
RE-
RE-
CLEAR_IN-
RE-
SERVED
TOGGLE_ SEND_RX_
0x20
RX_COM[7:0]
SERVED SERVED TERRUPT
LDO
DATA
0x21
0x22
PPP_HEADER[7:0]
PPP_HEADER[7:0]
RX_DATA_VAL-
UE0[7:0]
RX_DATA_VALUE0[7:0]
RX_DATA_VAL-
UE1[7:0]
0x23
0x24
0x25
0x26
0x27
0x28
RX_DATA_VALUE1[7:0]
RX_DATA_VALUE2[7:0]
RX_DATA_VALUE3[7:0]
RX_DATA_VALUE4[7:0]
FSK_DATA_VALUE0[7:0]
FSK_DATA_VALUE1[7:0]
RX_DATA_VAL-
UE2[7:0]
RX_DATA_VAL-
UE3[7:0]
RX_DATA_VAL-
UE4[7:0]
FSK_DATA_VAL-
UE0[7:0]
FSK_DATA_VAL-
UE1[7:0]
FSK_DATA_VAL-
UE2[7:0]
0x29
0x2A
0x2B
FSK_DATA_VALUE2[7:0]
TX_FOP_SET[7:0]
TX_FOP_SET_L[7:0]
TX_FOP_
SET[8]
TX_FOP_SET_H[7:0]
RESERVED[6:0]
TX_FOP_TON_
SET_L[7:0]
0x2C
0x2D
0x34
TX_FOP_TON_SET[7:0]
TX_FOP_
TON_
SET[8]
TX_FOP_TON_
SET_H[7:0]
RESERVED[6:0]
TX_WPC_HEAD-
ER[7:0]
TX_WPC_HEADER[7:0]
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
TX_WPC_DATA0[7:0]
TX_WPC_DATA1[7:0]
TX_WPC_DATA2[7:0]
TX_WPC_DATA3[7:0]
TX_WPC_DATA4[7:0]
TX_WPC_DATA5[7:0]
TX_WPC_DATA6[7:0]
TX_WPC_DATA0[7:0]
TX_WPC_DATA1[7:0]
TX_WPC_DATA2[7:0]
TX_WPC_DATA3[7:0]
TX_WPC_DATA4[7:0]
TX_WPC_DATA5[7:0]
TX_WPC_DATA6[7:0]
Maxim Integrated
│ 20
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Register Map (continued)
ADDRESS
NAME
MSB
LSB
0x3C
TX_WPC_DATA7[7:0]
TX_WPC_DATA7[7:0]
TX_WPC_CHECK-
SUM[7:0]
0x3D
TX_WPC_CHECKSUM[7:0]
0x3E
0x3F
0x40
0x41
0x42
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x5A
0x5B
0x5C
0x5D
FOD_X0[7:0]
FOD_Y0[7:0]
FOD_X1[7:0]
FOD_Y1[7:0]
FOD_X2[7:0]
FOD_Y2[7:0]
FOD_X3[7:0]
FOD_Y3[7:0]
FOD_X4[7:0]
FOD_Y4[7:0]
FOD_X5[7:0]
FOD_Y5[7:0]
FOD_X6[7:0]
FOD_Y6[7:0]
FOD_X7[7:0]
FOD_Y7[7:0]
FOD_X8[7:0]
FOD_Y8[7:0]
FOD_X9[7:0]
FOD_Y9[7:0]
FOD_X10[7:0]
FOD_Y10[7:0]
FOD_X11[7:0]
FOD_Y11[7:0]
FOD_X12[7:0]
FOD_Y12[7:0]
FOD_X13[7:0]
FOD_Y13[7:0]
FOD_X14[7:0]
FOD_Y14[7:0]
FOD_X15[7:0]
FOD_Y15[7:0]
FOD_X0[7:0]
FOD_Y0[7:0]
FOD_X1[7:0]
FOD_Y1[7:0]
FOD_X2[7:0]
FOD_Y2[7:0]
FOD_X3[7:0]
FOD_Y3[7:0]
FOD_X4[7:0]
FOD_Y4[7:0]
FOD_X5[7:0]
FOD_Y5[7:0]
FOD_X6[7:0]
FOD_Y6[7:0]
FOD_X7[7:0]
FOD_Y7[7:0]
FOD_X8[7:0]
FOD_Y8[7:0]
FOD_X9[7:0]
FOD_Y9[7:0]
FOD_X10[7:0]
FOD_Y10[7:0]
FOD_X11[7:0]
FOD_Y11[7:0]
FOD_X12[7:0]
FOD_Y12[7:0]
FOD_X13[7:0]
FOD_Y13[7:0]
FOD_X14[7:0]
FOD_Y14[7:0]
FOD_X15[7:0]
FOD_Y15[7:0]
POV_
CLAMP_
VOLTAGE
OV_CLAMP_VOLT-
AGE[7:0]
OV_CLAMP_VOLT-
0x62
0x63
RESERVED[2:0]
RESERVED[1:0]
AGE[1:0]
TX_LAST_CEP[7:0]
TX_LAST_CEP[7:0]
Maxim Integrated
│ 21
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Register Map (continued)
ADDRESS
0x64
NAME
MSB
LSB
TX_LAST_RPP[7:0]
TX_LAST_PCHP[7:0]
TX_LAST_RPP[7:0]
0x65
TX_LAST_PCHP[7:0]
LDO
LDO_WPDET_
CNFG[7:0]
WPDET_H_DE-
BOUNCE[1:0]
WPDET_L_DE-
BOUNCE[1:0]
WPDET_H_THRESH- WPDET_L_THRESH-
0x70
OLD[1:0]
OLD[1:0]
VRECT_TARGET
VRECT_TARGET_
0xBA
0xBB
0xBC
0xBD
0xBE
0xBF
0xC0
0xC1
0xC2
0xC3
0xC4
0xC5
0xC6
0xC7
0xC8
0xC9
0xCA
0xCB
VRECT_TARGET_X0[7:0]
X0[7:0]
VRECT_TARGET_
Y0[7:0]
VRECT_TARGET_Y0[7:0]
VRECT_TARGET_PMA_Y0[7:0]
VRECT_TARGET_X1[7:0]
VRECT_TARGET_Y1[7:0]
VRECT_TARGET_PMA_Y1[7:0]
VRECT_TARGET_X2[7:0]
VRECT_TARGET_Y2[7:0]
VRECT_TARGET_PMA_Y2[7:0]
VRECT_TARGET_X3[7:0]
VRECT_TARGET_Y3[7:0]
VRECT_TARGET_PMA_Y3[7:0]
VRECT_TARGET_X4[7:0]
VRECT_TARGET_Y4[7:0]
VRECT_TARGET_PMA_Y4[7:0]
VRECT_TARGET_X5[7:0]
VRECT_TARGET_Y5[7:0]
VRECT_TARGET_PMA_Y5[7:0]
VRECT_TARGET_
PMA_Y0[7:0]
VRECT_TARGET_
X1[7:0]
VRECT_TARGET_
Y1[7:0]
VRECT_TARGET_
PMA_Y1[7:0]
VRECT_TARGET_
X2[7:0]
VRECT_TARGET_
Y2[7:0]
VRECT_TARGET_
PMA_Y2[7:0]
VRECT_TARGET_
X3[7:0]
VRECT_TARGET_
Y3[7:0]
VRECT_TARGET_
PMA_Y3[7:0]
VRECT_TARGET_
X4[7:0]
VRECT_TARGET_
Y4[7:0]
VRECT_TARGET_
PMA_Y4[7:0]
VRECT_TARGET_
X5[7:0]
VRECT_TARGET_
Y5[7:0]
VRECT_TARGET_
PMA_Y5[7:0]
Maxim Integrated
│ 22
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Register Map (continued)
ADDRESS
NAME
MSB
LSB
VRECT_TARGET_
X6[7:0]
0xCC
VRECT_TARGET_X6[7:0]
VRECT_TARGET_
Y6[7:0]
0xCD
0xCE
0xCF
0xD0
0xD1
VRECT_TARGET_Y6[7:0]
VRECT_TARGET_PMA_Y6[7:0]
VRECT_TARGET_X7[7:0]
VRECT_TARGET_
PMA_Y6[7:0]
VRECT_TARGET_
X7[7:0]
VRECT_TARGET_
Y7[7:0]
VRECT_TARGET_Y7[7:0]
VRECT_TARGET_
PMA_Y7[7:0]
VRECT_TARGET_PMA_Y7[7:0]
DEMOD
0xDB
PMA_ADV_DATA[7:0]
PMA_ADV_CRC[7:0]
PMA_ADV_DATA[7:0]
0xDC
RESERVED[3:0]
PMA_ADV_CRC[3:0]
CHIP_ID (0x00)
BIT
7
6
5
4
3
2
1
0
Field
CHIP_ID[7:0]
Reset
0b0001_0010
Read Only
Access Type
BITFIELD
BITS
DESCRIPTION
CHIP_ID
7:0
-
OTP_REV (0x05)
BIT
Field
7
6
5
4
3
2
1
0
OTP_REV[7:0]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
BITS
DESCRIPTION
OTP_REV
7:0
OTP revision
Maxim Integrated
│ 23
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
STATUS_L (0x06)
BIT
7
6
5
4
3
2
1
0
STAT_
VOUT
STAT_
VRECT
STAT_
WDOG
OVER_
VOLTAGE
OVER_
CURRENT
Field
FSK_RCVD RESERVED RESERVED
Reset
0b0
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
BITFIELD
BITS
DESCRIPTION
1: LDO is ON
0: LDO is OFF (Rx ONLY)
1: V is over UVLO (Rx ONLY)
STAT_VOUT
STAT_VRECT
STAT_WDOG
7
6
5
RECT
1: Watchdog timer expires
0: No watchdog timer expires
1: FSK data sent by transmitter is received
0: No FSK data
FSK_RCVD
4
RESERVED
RESERVED
3
2
RSVD
RSVD
1: Overvoltage (V
0: Normal
)
RECT
OVER_VOLTAGE
OVER_CURRENT
1
0
1: Overcurrent (LDO output current) in Rx mode
0: Normal
STATUS_H (0x07)
BIT
7
6
5
4
3
2
1
0
OVER_
TEMP
TX_OVER_ TX_OVER_
ASK_DE-
MOD_PING MOD_IDCF
ASK_DE-
ASK_DE-
MOD_PT
Field
RESERVED TX_CONN
CURRENT
TEMP
Reset
0b0
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
BITFIELD
OVER_TEMP
BITS
DESCRIPTION
1: Overtemperature in Rx mode
0: Normal
7
1: Overcurrent in Tx mode
0: Normal
TX_OVER_CURRENT
6
1: Overtemperature in Tx mode
0: Normal
TX_OVER_TEMP
RESERVED
5
4
3
RSVD
1: Power transfer established in Tx mode
0: No power transfer established
TX_CONN
1: Packet received in PING phase
0: No packet
ASK_DEMOD_PING
ASK_DEMOD_IDCF
ASK_DEMOD_PT
2
1
0
1: Packet received in ID and configuration phase
0: No packet
1: Packet received in power transfer phase (count CEP if that is non zero)
0: No packet
Maxim Integrated
│ 24
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
INT_L (0x08)
BIT
7
6
5
4
3
2
1
0
FSK_
RCVD_INT
Field
VOUT_INT VRECT_INT WDOG_INT
RESERVED RESERVED
OV_INT
OC_INT
Reset
0b0
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
BITFIELD
VOUT_INT
BITS
DESCRIPTION
state change (off to on, on to off)
7
6
5
4
3
2
1: V
1: V
OUT
VRECT_INT
WDOG_INT
is over UVLO (Rx ONLY)
RECT
1: Watchdog timer expired
FSK_RCVD_INT
RESERVED
RESERVED
1: FSK data sent by transmitter is received
RSVD
RSVD
1: Overvoltage (V
0: Normal
)
RECT
OV_INT
OC_INT
1
0
1: Overcurrent (LDO output current) in Rx mode
0: Normal
INT_H (0x09)
BIT
7
6
5
4
3
2
1
0
ASK_DE-
MOD_
PING_INT
ASK_DE-
MOD_
IDCF_INT
ASK_DE-
MOD_PT_
INT
TX_CONN_
INT
Field
OT_INT
TX_OC_INT TX_OT_INT RESERVED
Reset
0b0
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
BITFIELD
OT_INT
BITS
DESCRIPTION
7
6
5
4
3
1: Overtemperature in Rx mode
1: Overcurrent in Tx mode
1: Overtemperature in Tx mode
RSVD
TX_OC_INT
TX_OT_INT
RESERVED
TX_CONN_INT
1: Power tranfer phase established in Tx mode
ASK_DEMOD_PING_
INT
2
1: Packet received in PING Phase
ASK_DEMOD_IDCF_
INT
1
0
1: Packet received in ID and configuration phase
ASK_DEMOD_PT_INT
1: Packet received in power transfer phase
Maxim Integrated
│ 25
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
INT_ENABLE_L (0x0A)
BIT
Field
Reset
7
6
5
4
3
2
1
0
VOUT_INT_ VRECT_INT_ WDOG_INT_ FSK_RCVD_
RESERVED RESERVED OV_INT_EN OC_INT_EN
0b0 0b0 0b0 0b0
EN
EN
EN
INT_EN
0b0
0b0
0b0
0b0
Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read
BITFIELD
BITS
DESCRIPTION
1: Enable VOUT_INT
0: Disable
VOUT_INT_EN
7
1: Enable VRECT_INT
0: Disable
VRECT_INT_EN
WDOG_INT_EN
6
5
4
1: Enable watchdog timer and associated interrupt
0: Disable
1: Enable FSK_RCVD_INT
0: Disable
FSK_RCVD_INT_EN
RESERVED
RESERVED
3
2
RSVD
RSVD
1: Enable OV_INT
0: Disable
OV_INT_EN
OC_INT_EN
1
0
1: Enable OC_INT
0: Disable
INT_ENABLE_H (0x0B)
BIT
Field
Reset
7
6
5
4
3
2
1
0
ASK_DE-
ASK_DE-
ASK_DE-
TX_OC_INT_ TX_OT_INT_
TX_CONN_
INT_EN
OT_INT_EN
0b0
RESERVED
0b0
MOD_PING_ MOD_IDCF_ MOD_PT_
INT_EN
EN
EN
INT_EN
INT_EN
0b0
0b0
0b0
0b0
0b0
0b0
Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read
BITFIELD
OT_INT_EN
BITS
DESCRIPTION
1: Enable OT_INT
0: Disable
7
1: Enable TX_OC_INT
0: Disable
TX_OC_INT_EN
6
1: Enable TX_OT_INT
0: Disable
TX_OT_INT_EN
RESERVED
5
4
3
RSVD
1: Enable TX_CONN_INT
0: Disable
TX_CONN_INT_EN
ASK_DEMOD_PING_
INT_EN
1: Enable ASK_DEMOD_PING_INT
0: Disable
2
1
0
ASK_DEMOD_IDCF_
INT_EN
1: Enable ASK_DEMOD_IDCF_INT
0: Disable
ASK_DEMOD_PT_INT_
EN
1: Enable ASK_DEMOD_PT_INT
0: Disable
Maxim Integrated
│ 26
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
INT_CLEAR_L (0x0C)
BIT
Field
Reset
7
6
5
4
3
2
1
0
FSK_
VOUT_INT_
CLR
VRECT_
INT_CLR
WDOG_
INT_CLR
OV_INT_
CLR
OC_INT_
CLR
RCVD_INT_ RESERVED RESERVED
CLR
0b0
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read
BITFIELD
VOUT_INT_CLR
VRECT_INT_CLR
WDOG_INT_CLR
FSK_RCVD_INT_CLR
RESERVED
BITS
DESCRIPTION
7
6
5
4
3
2
1
0
1: Clear VOUT_INT bit (this CLR bit resets automatically after being set)
1: Clear VRECT_INT bit (this CLR bit resets automatically after being set)
1: Clear WDOG_INT bit (this CLR bit resets automatically after being set)
1: Clear FSK_RCVD_INT (this CLR bit resets automatically after being set)
RSVD
RESERVED
RSVD
OV_INT_CLR
1: Clear OV_INT bit (this CLR bit resets automatically after being set)
1: Clear OC_INT bit (this CLR bit resets automatically after being set)
OC_INT_CLR
INT_CLEAR_H (0x0D)
BIT
7
6
5
4
3
2
1
0
ASK_DE-
MOD_
PING_INT_ IDCF_INT_
ASK_DE-
MOD_
ASK_DE-
MOD_PT_
INT_CLR
OT_INT_
CLR
TX_OC_
INT_CLR
TX_OT_
INT_CLR
TX_CONN_
INT_CLR
Field
RESERVED
0b0
CLR
CLR
Reset
0b0
0b0
0b0
0b0
0b0
0b0
0b0
Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read
BITFIELD
OT_INT_CLR
BITS
DESCRIPTION
7
6
5
4
3
1: Clear OT_INT bit (this CLR bit resets automatically after being set)
1: Clear TX_OC_INT bit (this CLR bit resets automatically after being set)
1: Clear TX_OT_INT bit (this CLR bit resets automatically after being set)
RSVD
TX_OC_INT_CLR
TX_OT_INT_CLR
RESERVED
TX_CONN_INT_CLR
1: Clear TX_CONN_INT bit (this CLR bit resets automatically after being set)
ASK_DEMOD_PING_
INT_CLR
1: Clear ASK_DEMOD_PING_INT bit (this CLR bit resets automatically after
being set)
2
1
0
ASK_DEMOD_IDCF_
INT_CLR
1: Clear ASK_DEMOD_IDCF_INT bit (this CLR bit resets automatically after
being set)
ASK_DEMOD_PT_INT_
CLR
1: Clear ASK_DEMOD_PT_INT bit (this CLR bit resets automatically after
being set)
Maxim Integrated
│ 27
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
CHARGE_STATUS (0x0E)
BIT
Field
7
6
5
4
3
2
1
0
CHARGE_STATUS[7:0]
0b1111_1111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Register for storing charge status as follows:
0x00: Reserved
0x01: Charge status = 1 (1%)
0x02: Charge status = 2 (2%)
…..
CHARGE_STATUS
7:0
0x64: Charge status = 64 (100%)
0x65 to 0xFE: Reserved
0xFF: No battery charge device or not providing charge status packet
EPT_REASON (0x0F)
BIT
Field
7
6
5
5
5
4
3
2
1
0
EPT_REASON[7:0]
0b1111_1111
Reset
Access Type
Write, Read
BITFIELD
EPT_REASON
BITS
DESCRIPTION
A user can program the reason for the end power transfer request that is
specified in the WPC specifications.
7:0
VOUTVAL_H (0x10)
BIT
Field
7
6
4
3
2
1
0
VOUTVAL[11:4]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
VOUTVAL
BITS
DESCRIPTION
8 MSB of VOUTVAL ADC value.
7:0
V
(V) = VOUTVAL[11:0] x (1.25/4095) x 12
OUT
VOUTVAL_L (0x11)
BIT
Field
7
6
4
3
2
1
0
RESERVED[3:0]
0b0000
VOUTVAL[3:0]
Reset
0b0000
Access Type
Read Only
Read Only
BITFIELD
BITS
7:4
DESCRIPTION
RESERVED
VOUTVAL
RSVD
4 LSB of VOUTVAL ADC value
3:0
Maxim Integrated
│ 28
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VOUTSET (0x12)
BIT
7
6
5
4
3
2
1
0
Field
RESERVED
0b0
VOUTSET[6:0]
0b011_0010
Write, Read
Reset
Access Type Write, Read
BITFIELD
BITS
DESCRIPTION
RESERVED
7
RSVD
Main LDO output-voltage-setting register.
(V) = VOUTSET[6:0] x 0.1
VOUTSET
6:0
V
OUT
VRECT_ADJ (0x13)
BIT
Field
7
6
5
5
5
4
3
2
1
0
0
0
VRECT_ADJ[7:0]
0b0000_0000
Write, Read
Reset
Access Type
BITFIELD
VRECT_ADJ
BITS
DESCRIPTION
2's complement signed integer representing values -128 ~ +127.
Adjustment(V) = VRECT_ADJ x 12 x 1.25/255
7:0
VRECTVAL_H (0x14)
BIT
Field
7
6
4
3
2
1
VRECTVAL[11:4]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
VRECTVAL
BITS
DESCRIPTION
8 MSB of VRECTVAL ADC value.
(V) = VRECTVAL[11:0] x (1.25/4095) x 12
7:0
V
RECT
VRECTVAL_L (0x15)
BIT
Field
7
6
4
3
2
1
RESERVED[3:0]
0b0000
VRECTVAL[3:0]
0b0000
Reset
Access Type
Read Only
Read Only
BITFIELD
BITS
7:4
DESCRIPTION
RESERVED
VRECTVAL
RSVD
4 LSB of VRECTVAL ADC value
3:0
Maxim Integrated
│ 29
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
ISENSEVAL_H (0x16)
BIT
Field
7
6
5
4
3
2
1
0
ISENSEVAL[11:4]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
ISENSEVAL
BITS
DESCRIPTION
8 MSB of ISENSE ADC value. ISENSE(A) = ISENSEVAL[11:0] x (1.25/4095) x
(1/0.73). Bidirectional measurement for Rx and Tx mode.
7:0
ISENSEVAL_L (0x17)
BIT
Field
7
6
5
4
3
2
1
0
RESERVED[3:0]
0b0000
ISENSEVAL[3:0]
0b0000
Reset
Access Type
Read Only
Read Only
BITFIELD
BITS
7:4
DESCRIPTION
RESERVED
ISENSEVAL
RSVD
4 LSB of ISENSEVAL ADC value
3:0
TDIE_VALUE (0x18)
BIT
Field
7
6
5
4
3
2
1
0
TDIE_VALUE[7:0]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
TDIE_VALUE
BITS
DESCRIPTION
7:0
Die temperature value = TDIE_VALUE[7:0] x 16 x 0.108603481–262.1459
OP_FREQ_L (0x19)
BIT
Field
7
6
5
4
3
2
1
0
OP_FREQ[7:0]
Reset
0b0000_0000
Read Only
Access Type
BITFIELD
OP_FREQ
BITS
DESCRIPTION
8 LSB of OP_FREQ. AC operation frequency in Rx and Tx mode.
FREQ(Hz) = 64 x 10^6/OP_FREQ[15:0]
7:0
Maxim Integrated
│ 30
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
OP_FREQ_H (0x1A)
BIT
Field
7
6
5
4
3
2
1
0
OP_FREQ[15:8]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
OP_FREQ
BITS
DESCRIPTION
8 MSB of OP_FREQ. AC operation frequency in Rx and Tx mode.
FREQ(Hz) = 64 x 10^6/OP_FREQ[15:0]
7:0
PING_OP_FREQ_L (0x1B)
BIT
Field
7
6
5
4
3
2
1
0
PING_OP_FREQ[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
PING_OP_FREQ
BITS
DESCRIPTION
8 LSB of PING_OP_FREQ. AC frequency captured in PING phase.
PING FREQ(Hz) = 64 x 10^6/OP_FREQ[15:0]
7:0
PING_OP_FREQ_H (0x1C)
BIT
Field
7
6
5
4
3
2
1
0
PING_OP_FREQ[15:8]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
PING_OP_FREQ
BITS
DESCRIPTION
7:0
8 MSB of PING_OP_FREQ. AC frequency captured in PING phase.
LDO_ILIMSET (0x1D)
BIT
Field
7
6
5
4
3
2
1
0
RESERVED[2:0]
0b000
LDO_ILIMSET[4:0]
0b1_1010
Reset
Access Type
Write, Read
Write, Read
BITFIELD
BITS
DESCRIPTION
RESERVED
7:5
RSVD
LDO current-limit-setting register. ILIM(A) = LDO_ILIMSET[4:0] x 0.05. ILIM
lower clamp = 20mA, ILIM upper clamp = 1.5A
LDO_ILIMSET
4:0
Maxim Integrated
│ 31
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_ILIMSET (0x1E)
BIT
Field
7
6
5
4
3
2
1
0
RESERVED[2:0]
0b000
TX_ILIMSET[4:0]
0b0_1010
Reset
Access Type
Write, Read
Write, Read
BITFIELD
BITS
DESCRIPTION
RESERVED
7:5
RSVD
Tx (PeerPower) mode input current-limit-setting register. ILIM(A) = TX_ILIM-
SET[4:0] x 0.05. ILIM lower clamp = 20mA, ILIM upper clamp = 1.5A
TX_ILIMSET
4:0
SYS_OP_MODE (0x1F)
BIT
Field
7
6
5
4
3
2
1
0
SYS_OP_MODE[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
BITS
DESCRIPTION
0x00: Initial state
0x01: WPC Rx mode
0x02: PMA Rx mode
SYS_OP_MODE
7:0
0x04: Tx mode (PeerPower)
RX_COM (0x20)
BIT
7
6
5
4
3
2
1
0
SEND_
CLEAR_IN-
TERRUPT
TOGGLE_
LDO
SEND_RX_
DATA
Field
RESERVED RESERVED
0b0 0b0
CHARGE_ SEND_EPT RESERVED
STATUS
Reset
0b0
0b0
0b0
0b0
0b0
0b0
Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read
BITFIELD
RESERVED
BITS
DESCRIPTION
7
6
RSVD
RSVD
RESERVED
Global Interrtup Clear Bit. Clears all interrupt bits. After the set, it resets auto-
matically.
CLEAR_INTERRUPT
5
4
SEND_CHARGE_STA-
TUS
1: Send charge status packet. After the set, it resets automatically.
SEND_EPT
RESERVED
3
2
1: Send end power transfer packet. After the set, it resets automatically.
RSVD
1: Toggle LDO output once (on to off, off to on). After the set, it resets auto-
matically.
TOGGLE_LDO
1
1: Send WPC proprietary packet that includes PPP_Header (0x21), data com-
mand (0x22), and data values (0x23 to 0x26). After the set, it resets automati-
cally.
SEND_RX_DATA
0
Maxim Integrated
│ 32
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
PPP_HEADER (0x21)
BIT
Field
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
PPP_HEADER[7:0]
0b0000_0000
Write, Read
Reset
Access Type
BITFIELD
PPP_HEADER
BITS
DESCRIPTION
7:0
WPC Proprietary Packet Header
RX_DATA_VALUE0 (0x22)
BIT
Field
7
6
4
3
2
RX_DATA_VALUE0[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
RX_DATA_VALUE0
BITS
DESCRIPTION
7:0
1st Byte of Proprietary Packet
RX_DATA_VALUE1 (0x23)
BIT
Field
7
6
4
3
2
RX_DATA_VALUE1[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
RX_DATA_VALUE1
BITS
DESCRIPTION
7:0
2nd Byte of Proprietary Packet
RX_DATA_VALUE2 (0x24)
BIT
Field
7
6
4
3
2
RX_DATA_VALUE2[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
RX_DATA_VALUE2
BITS
DESCRIPTION
7:0
3rd Byte of Proprietary Packet
RX_DATA_VALUE3 (0x25)
BIT
Field
7
6
4
3
2
RX_DATA_VALUE3[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
RX_DATA_VALUE3
BITS
DESCRIPTION
7:0
4th Byte of Proprietary Packet
Maxim Integrated
│ 33
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
RX_DATA_VALUE4 (0x26)
BIT
Field
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
RX_DATA_VALUE4[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
RX_DATA_VALUE4
BITS
DESCRIPTION
7:0
5th Byte of Proprietary Packet
FSK_DATA_VALUE0 (0x27)
BIT
Field
7
6
4
3
2
FSK_DATA_VALUE0[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
FSK_DATA_VALUE0
BITS
DESCRIPTION
7:0
1st Byte of FSK_DATA
FSK_DATA_VALUE1 (0x28)
BIT
Field
7
6
4
3
2
FSK_DATA_VALUE1[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
FSK_DATA_VALUE1
BITS
DESCRIPTION
7:0
2nd Byte of FSK_DATA
FSK_DATA_VALUE2 (0x29)
BIT
Field
7
6
4
3
2
FSK_DATA_VALUE2[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
FSK_DATA_VALUE2
BITS
DESCRIPTION
7:0
3rd Byte of FSK_DATA
TX_FOP_SET_L (0x2A)
BIT
Field
7
6
4
3
2
TX_FOP_SET[7:0]
0b1111_1111
Reset
Access Type
Write, Read
BITFIELD
TX_FOP_SET
BITS
DESCRIPTION
7:0
Tx operating frequency = 64 x 10^6/(2 x (TX_FOP_SET[8:0] + 1))
Maxim Integrated
│ 34
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_FOP_SET_H (0x2B)
BIT
7
6
5
4
3
2
1
0
TX_FOP_
SET[8]
Field
RESERVED[6:0]
Reset
0b0000_000
Write, Read
0b0
Access Type
Write, Read
BITFIELD
BITS
7:1
0
DESCRIPTION
RESERVED
RSVD
TX_FOP_SET
TX_FOP_TON_SET_L (0x2C)
BIT
Field
7
6
5
4
3
2
1
0
TX_FOP_TON_SET[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
TX_FOP_TON_SET
BITS
DESCRIPTION
Tx duty cycle = (TX_FOP_SET[8:0] - TX_FOP_TON_SET[8:0])/(2 x (TX_
FOP_SET[8:0] + 1))
7:0
TX_FOP_TON_SET_H (0x2D)
BIT
7
6
5
4
3
2
1
0
TX_FOP_
TON_
Field
RESERVED[6:0]
SET[8]
Reset
0b0000_000
Write, Read
0b0
Access Type
Write, Read
BITFIELD
BITS
7:1
0
DESCRIPTION
RESERVED
RSVD
TX_FOP_TON_SET
TX_WPC_HEADER (0x34)
BIT
Field
7
6
5
4
3
2
1
0
TX_WPC_HEADER[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_HEADER
BITS
DESCRIPTION
Header of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
Maxim Integrated
│ 35
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_WPC_DATA0 (0x35)
BIT
Field
7
6
5
5
5
5
4
3
2
1
0
TX_WPC_DATA0[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA0
BITS
DESCRIPTION
DATA0 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA1 (0x36)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA1[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA1
BITS
DESCRIPTION
DATA1 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA2 (0x37)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA2[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA2
BITS
DESCRIPTION
DATA2 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA3 (0x38)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA3[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA3
BITS
DESCRIPTION
DATA3 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
Maxim Integrated
│ 36
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_WPC_DATA4 (0x39)
BIT
Field
7
6
5
5
5
5
4
3
2
1
0
TX_WPC_DATA4[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA4
BITS
DESCRIPTION
DATA4 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA5 (0x3A)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA5[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA5
BITS
DESCRIPTION
DATA5 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA6 (0x3B)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA6[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA6
BITS
DESCRIPTION
DATA6 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
TX_WPC_DATA7 (0x3C)
BIT
Field
7
6
4
3
2
1
0
TX_WPC_DATA7[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
TX_WPC_DATA7
BITS
DESCRIPTION
DATA7 of packet that is received by ASK demodulation in Tx (PeerPower)
mode.
7:0
Maxim Integrated
│ 37
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_WPC_CHECKSUM (0x3D)
BIT
Field
7
6
5
5
5
5
5
4
3
2
1
0
TX_WPC_CHECKSUM[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
BITS
DESCRIPTION
CHECKSUM of data received by ASK demodulation in Tx (PeerPower) mode.
TX_WPC_CHECKSUM
7:0
FOD_X0 (0x3E)
BIT
Field
7
7
7
7
6
4
3
2
1
1
1
1
0
0
0
0
FOD_X0[7:0]
Reset
0b0000_0000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X0
7:0
FOD Adjust Parameter
FOD_Y0 (0x3F)
BIT
6
4
3
2
Field
FOD_Y0[7:0]
Reset
0b0001_0001
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y0
7:0
FOD Adjust Parameter
FOD_X1 (0x40)
BIT
6
4
3
2
Field
FOD_X1[7:0]
Reset
0b0000_1000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X1
7:0
FOD Adjust Parameter
FOD_Y1 (0x41)
BIT
6
4
3
2
Field
FOD_Y1[7:0]
Reset
0b0001_1010
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y1
7:0
FOD Adjust Parameter
Maxim Integrated
│ 38
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_X2 (0x42)
BIT
7
7
7
7
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
Field
FOD_X2[7:0]
0b0000_1110
Write, Read
Reset
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X2
7:0
FOD Adjust Parameter
FOD_Y2 (0x43)
BIT
6
4
3
2
Field
FOD_Y2[7:0]
Reset
0b0010_0000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y2
7:0
FOD Adjust Parameter
FOD_X3 (0x44)
BIT
6
4
3
2
Field
FOD_X3[7:0]
Reset
0b0001_0000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X3
7:0
FOD Adjust Parameter
FOD_Y3 (0x45)
BIT
6
4
3
2
Field
FOD_Y3[7:0]
0b0001_1111
Write, Read
Reset
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y3
7:0
FOD Adjust Parameter
FOD_X4 (0x46)
BIT
6
4
3
2
Field
FOD_X4[7:0]
Reset
0b0001_0111
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X4
7:0
FOD Adjust Parameter
Maxim Integrated
│ 39
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_Y4 (0x47)
BIT
7
7
7
7
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
Field
FOD_Y4[7:0]
Reset
0b0010_0110
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y4
7:0
FOD Adjust Parameter
FOD_X5 (0x48)
BIT
6
4
3
2
Field
FOD_X5[7:0]
Reset
0b0001_1101
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X5
7:0
FOD Adjust Parameter
FOD_Y5 (0x49)
BIT
6
4
3
2
Field
FOD_Y5[7:0]
Reset
0b0010_1100
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y5
7:0
FOD Adjust Parameter
FOD_X6 (0x4A)
BIT
6
4
3
2
Field
FOD_X6[7:0]
Reset
0b0010_1010
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X6
7:0
FOD Adjust Parameter
FOD_Y6 (0x4B)
BIT
6
4
3
2
Field
FOD_Y6[7:0]
Reset
0b0011_1000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y6
7:0
FOD Adjust Parameter
Maxim Integrated
│ 40
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_X7 (0x4C)
BIT
7
7
7
7
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
Field
FOD_X7[7:0]
Reset
0b0011_0001
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X7
7:0
FOD Adjust Parameter
FOD_Y7 (0x4D)
BIT
6
4
3
3
3
2
Field
FOD_Y7[7:0]
0b0011_1110
Write, Read
Reset
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y7
7:0
FOD Adjust Parameter
FOD_X8 (0x4E)
BIT
6
4
2
Field
FOD_X8[7:0]
Reset
0b0011_1100
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X8
7:0
FOD Adjust Parameter
FOD_Y8 (0x4F)
BIT
6
4
2
Field
FOD_Y8[7:0]
Reset
0b0100_0101
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y8
7:0
FOD Adjust Parameter
FOD_X9 (0x50)
BIT
6
4
3
2
Field
FOD_X9[7:0]
Reset
0b0100_1100
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X9
7:0
FOD Adjust Parameter
Maxim Integrated
│ 41
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_Y9 (0x51)
BIT
7
7
7
7
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
Field
FOD_Y9[7:0]
Reset
0b0101_0011
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y9
7:0
FOD Adjust Parameter
FOD_X10 (0x52)
BIT
6
4
3
2
Field
FOD_X10[7:0]
Reset
0b0110_0011
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X10
7:0
FOD Adjust Parameter
FOD_Y10 (0x53)
BIT
6
4
3
2
Field
FOD_Y10[7:0]
Reset
0b0110_1000
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y10
7:0
FOD Adjust Parameter
FOD_X11 (0x54)
BIT
6
4
3
2
Field
FOD_X11[7:0]
Reset
0b0110_1001
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X11
7:0
FOD Adjust Parameter
FOD_Y11 (0x55)
BIT
6
4
3
2
Field
FOD_Y11[7:0]
Reset
0b0110_1110
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y11
7:0
FOD Adjust Parameter
Maxim Integrated
│ 42
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_X12 (0x56)
BIT
7
7
7
7
7
6
5
5
5
5
5
4
3
2
1
1
1
1
1
0
0
0
0
0
Field
FOD_X12[7:0]
Reset
0b0111_0111
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X12
7:0
FOD Adjust Parameter
FOD_Y12 (0x57)
BIT
6
4
3
2
Field
FOD_Y12[7:0]
Reset
0b0111_1100
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y12
7:0
FOD Adjust Parameter
FOD_X13 (0x58)
BIT
6
4
3
2
Field
FOD_X13[7:0]
Reset
0b1000_0110
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X13
7:0
FOD Adjust Parameter
FOD_Y13 (0x59)
BIT
6
4
3
2
Field
FOD_Y13[7:0]
Reset
0b1000_1011
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y13
7:0
FOD Adjust Parameter
FOD_X14 (0x5A)
BIT
6
4
3
2
Field
FOD_X14[7:0]
Reset
0b1001_0101
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X14
7:0
FOD Adjust Parameter
Maxim Integrated
│ 43
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
FOD_Y14 (0x5B)
BIT
7
7
7
6
5
5
5
5
4
3
2
1
1
1
1
0
0
0
0
Field
FOD_Y14[7:0]
Reset
0b1001_1011
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y14
7:0
FOD Adjust Parameter
FOD_X15 (0x5C)
BIT
6
4
3
2
Field
FOD_X15[7:0]
Reset
0b1010_0100
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_X15
7:0
FOD Adjust Parameter
FOD_Y15 (0x5D)
BIT
6
4
3
2
Field
FOD_Y15[7:0]
Reset
0b1010_1011
Write, Read
Access Type
BITFIELD
BITS
DESCRIPTION
FOD_Y15
7:0
FOD Adjust Parameter
OV_CLAMP_VOLTAGE (0x62)
BIT
7
6
4
3
2
POV_
CLAMP_
VOLTAGE
OV_CLAMP_VOLT-
AGE[1:0]
Field
RESERVED[2:0]
RESERVED[1:0]
Reset
0b000
0b0
0b00
0b00
Access Type
Write, Read
Write, Read
Write, Read
Write, Read
BITFIELD
BITS
DESCRIPTION
RESERVED
7:5
RSVD
POV_CLAMP_VOLT-
AGE
1: OV_CLAMP_VOLTAGE - 1.5V
0: OV_CLAMP_VOLTAGE - 1.0V
4
RESERVED
3:2
RSVD
00: 17V
01: 16V
10: 15V
11: 14V
OV_CLAMP_VOLTAGE
1:0
Maxim Integrated
│ 44
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
TX_LAST_CEP (0x63)
BIT
Field
7
6
5
5
5
4
3
2
1
0
TX_LAST_CEP[7:0]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
TX_LAST_CEP
BITS
DESCRIPTION
7:0
The latest received CEP from the WPC receiver in Tx (PeerPower) mode.
TX_LAST_RPP (0x64)
BIT
Field
7
6
4
3
2
1
0
TX_LAST_RPP[7:0]
0b0000_0000
Read Only
Reset
Access Type
BITFIELD
TX_LAST_RPP
BITS
DESCRIPTION
7:0
The latest received RPP from the WPC receiver in Tx (PeerPower) mode.
TX_LAST_PCHP (0x65)
BIT
Field
7
6
4
3
2
1
0
TX_LAST_PCHP[7:0]
0b0000_0101
Reset
Access Type
Read Only
BITFIELD
TX_LAST_PCHP
BITS
DESCRIPTION
The latest received PCHP (power control hold off packet) from the WPC
receiver in Tx (PeerPower) mode.
7:0
Maxim Integrated
│ 45
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
LDO_WPDET_CNFG (0x70)
BIT
7
6
5
4
3
2
1
0
WPDET_H_DE-
BOUNCE[1:0]
WPDET_L_DE-
BOUNCE[1:0]
WPDET_H_THRESH-
OLD[1:0]
WPDET_L_THRESH-
OLD[1:0]
Field
Reset
0b01
0b01
0b01
0b00
Access Type
Write, Read
Write, Read
Write, Read
Write, Read
BITFIELD
BITS
DESCRIPTION
00: 1μs
01: 1ms
10: 2ms
11: 3ms
WPDET_H_DE-
BOUNCE
7:6
5:4
3:2
1:0
00: 1μs
01: 1ms
10: 2ms
11: 3ms
WPDET_L_DEBOUNCE
00: 4.4V
01: 4.5V
10: 4.6V
11: 4.7V
WPDET_H_THRESH-
OLD
00: 3.6V
01: 3.8V
10: 4.0V
11: 4.2V
WPDET_L_THRESH-
OLD
VRECT_TARGET_X0 (0xBA)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_X0[7:0]
0b0000_0000
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 0
VRECT_TARGET_X0
7:0
V
RECT
VRECT_TARGET_Y0 (0xBB)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_Y0[7:0]
0b0111_0111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 0
VRECT_TARGET_Y0
7:0
V
RECT
Maxim Integrated
│ 46
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VRECT_TARGET_PMA_Y0 (0xBC)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_PMA_Y0[7:0]
0b0111_1011
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 0
VRECT_TARGET_
PMA_Y0
7:0
V
RECT
VRECT_TARGET_X1 (0xBD)
BIT
Field
7
6
5
5
5
4
3
2
1
1
1
0
0
0
VRECT_TARGET_X1[7:0]
0b0000_0111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 1
VRECT_TARGET_X1
7:0
V
RECT
VRECT_TARGET_Y1 (0xBE)
BIT
Field
7
6
4
3
2
VRECT_TARGET_Y1[7:0]
0b0111_0010
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y1
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 1
7:0
V
RECT
VRECT_TARGET_PMA_Y1 (0xBF)
BIT
Field
7
6
4
3
2
VRECT_TARGET_PMA_Y1[7:0]
0b0111_0111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 1
VRECT_TARGET_
PMA_Y1
7:0
V
RECT
Maxim Integrated
│ 47
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VRECT_TARGET_X2 (0xC0)
BIT
Field
7
6
5
5
5
4
3
2
1
1
1
0
0
0
VRECT_TARGET_X2[7:0]
0b0001_0001
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 2
VRECT_TARGET_X2
7:0
V
RECT
VRECT_TARGET_Y2 (0xC1)
BIT
Field
7
6
4
3
2
VRECT_TARGET_Y2[7:0]
0b0110_1100
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y2
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 2
7:0
V
RECT
VRECT_TARGET_PMA_Y2 (0xC2)
BIT
Field
7
6
4
3
2
VRECT_TARGET_PMA_Y2[7:0]
0b0111_0001
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 2
VRECT_TARGET_
PMA_Y2
7:0
V
RECT
VRECT_TARGET_X3 (0xC3)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_X3[7:0]
0b0001_1110
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 3
VRECT_TARGET_X3
7:0
V
RECT
VRECT_TARGET_Y3 (0xC4)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_Y3[7:0]
0b0110_0110
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 3
VRECT_TARGET_Y3
7:0
V
RECT
Maxim Integrated
│ 48
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VRECT_TARGET_PMA_Y3 (0xC5)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_PMA_Y3[7:0]
0b0110_1010
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 3
VRECT_TARGET_
PMA_Y3
7:0
V
RECT
VRECT_TARGET_X4 (0xC6)
BIT
Field
7
6
5
5
5
5
4
3
2
1
1
1
1
0
0
0
0
VRECT_TARGET_X4[7:0]
0b0010_1110
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 4
VRECT_TARGET_X4
7:0
V
RECT
VRECT_TARGET_Y4 (0xC7)
BIT
Field
7
6
4
3
2
VRECT_TARGET_Y4[7:0]
0b0110_0000
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y4
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 4
7:0
V
RECT
VRECT_TARGET_PMA_Y4 (0xC8)
BIT
Field
7
6
4
3
2
VRECT_TARGET_PMA_Y4[7:0]
0b0110_0010
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 4
VRECT_TARGET_
PMA_Y4
7:0
V
RECT
VRECT_TARGET_X5 (0xC9)
BIT
Field
7
6
4
3
2
VRECT_TARGET_X5[7:0]
0b0011_1111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 5
VRECT_TARGET_X5
7:0
V
RECT
Maxim Integrated
│ 49
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VRECT_TARGET_Y5 (0xCA)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_Y5[7:0]
0b0101_1010
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y5
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 5
7:0
V
RECT
VRECT_TARGET_PMA_Y5 (0xCB)
BIT
Field
7
6
5
4
3
2
1
0
VRECT_TARGET_PMA_Y5[7:0]
0b0101_1011
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 5
VRECT_TARGET_
PMA_Y5
7:0
V
RECT
VRECT_TARGET_X6 (0xCC)
BIT
Field
7
6
5
5
5
4
3
2
1
1
1
0
0
0
VRECT_TARGET_X6[7:0]
0b0101_0001
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 6
VRECT_TARGET_X6
7:0
V
RECT
VRECT_TARGET_Y6 (0xCD)
BIT
Field
7
6
4
3
2
VRECT_TARGET_Y6[7:0]
0b0101_1000
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y6
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 6
7:0
V
RECT
VRECT_TARGET_PMA_Y6 (0xCE)
BIT
Field
7
6
4
3
2
VRECT_TARGET_PMA_Y6[7:0]
0b0101_1001
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 6
VRECT_TARGET_
PMA_Y6
7:0
V
RECT
Maxim Integrated
│ 50
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
VRECT_TARGET_X7 (0xCF)
BIT
Field
7
6
5
5
5
4
3
2
1
1
1
0
0
0
VRECT_TARGET_X7[7:0]
0b0110_0110
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, X-coordinate 7
VRECT_TARGET_X7
7:0
V
RECT
VRECT_TARGET_Y7 (0xD0)
BIT
Field
7
6
4
3
2
VRECT_TARGET_Y7[7:0]
0b0101_0111
Reset
Access Type
Write, Read
BITFIELD
VRECT_TARGET_Y7
BITS
DESCRIPTION
Target Profile, WPC Y-coordinate 7
7:0
V
RECT
VRECT_TARGET_PMA_Y7 (0xD1)
BIT
Field
7
6
4
3
2
VRECT_TARGET_PMA_Y7[7:0]
0b0101_0111
Reset
Access Type
Write, Read
BITFIELD
BITS
DESCRIPTION
Target Profile, PMA Y-coordinate 7
VRECT_TARGET_
PMA_Y7
7:0
V
RECT
PMA_ADV_DATA (0xDB)
BIT
Field
7
6
5
4
3
2
1
0
PMA_ADV_DATA[7:0]
0b0000_0000
Reset
Access Type
Read Only
BITFIELD
PMA_ADV_DATA
BITS
DESCRIPTION
7:0
Data from the PMA advertisement packet received from the PMA transmitter.
PMA_ADV_CRC (0xDC)
BIT
Field
7
6
5
4
3
2
1
0
RESERVED[3:0]
0b0000
PMA_ADV_CRC[3:0]
0b0000
Reset
Access Type
Read Only
Read Only
BITFIELD
BITS
7:4
DESCRIPTION
RESERVED
RSVD
CRC code in the PMA advertised packet received from the PMA transmitter.
PMA_ADV_CRC
3:0
Maxim Integrated
│ 51
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Typical Application Circuit
ONLY FOR PeerPower MODE
10nF
1µF
1µF
20kΩ
1nF
100kΩ
GND
GND
B5
DIS
D1
D2
D3
D4
D5
D6
V
WP_EN
OUT
B1
A1
G1
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
CLAMP1
COMM1
BST1
10µF
10µF
100nF
VIO_SYSTEM
100nF
100nF
100nF
GND
47nF
47nF
15nF
G2
H1
H2
AC1
AC1
AC1
100kΩ 2.2kΩ 2.2kΩ
C3
A3
B3
Ls
INT
SCL
SDA
INT
SCL
SDA
MAX77950
G5
H5
H6
AC2
AC2
AC2
8µH
C4
WP_DET
P2PEN
WP_DET
P2PEN
B2
47nF
47nF
15nF
F6
F1
G6
A6
B6
BST2
V1P8
COMM2
CLAMP2
V
CC
1µF
C2
A2
H4
H3
G3
A5
1µF
N.C.
V
V
V
V
V
V
V
V
RECT
RECT
RECT
RECT
RECT
RECT
E1
E2
F2
F3
F4
F5
E5
E6
DNC
DNC
DNC
DNC
DNC
GND
RECT
RECT
10µF 10µF 10µF 100nF
GND
GND
GND
Ordering Information
PART NUMBER
TEMP RANGE
PIN-PACKAGE
52-bump WLP,
0.4mm pitch
MAX77950EWW+T
-40°C to +85°C
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape-and-reel.
Maxim Integrated
│ 52
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MAX77950
WPC/PMA Dual Mode Wireless Power Receiver
Revision History
REVISION REVISION
PAGES
DESCRIPTION
CHANGED
NUMBER
DATE
0
3/17
Initial release
—
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2017 Maxim Integrated Products, Inc.
│ 53
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