BQ51050BYFPR [TI]
High-Efficiency Qi v1.1-Compliant Wireless Power Receiver and Battery Charger; 高效率琦V1.1兼容无线电源接收器和电池充电器
| 型号： | BQ51050BYFPR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | High-Efficiency Qi v1.1-Compliant Wireless Power Receiver and Battery Charger |
| 文件： | 总31页 (文件大小：2068K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
High-Efficiency Qi v1.1-Compliant Wireless Power Receiver and Battery Charger
Check for Samples: bq51050B, bq51051B
1
FEATURES
•
•
Compatible with WPC v1.1 “Qi” Industry
Standard
•
Single-Stage Wireless Power Receiver
and Li-Ion/Li-Pol Battery Charger
Power Stage Output Tracks Rectifier and
Battery Voltage to Ensure Maximum Efficiency
Across the Full Charge Cycle
–
Combines Wireless Power Receiver,
Rectifier and Battery Charger in a Single
Small Package
•
Available in small WCSP and QFN packages
–
–
–
4.2V and 4.35V Output Voltage Options
Supports up to 1.5A Charging Current
93% Peak AC-DC Charging Efficiency
APPLICATIONS
•
•
•
•
•
Battery Packs
Cell Phones, Smart Phones
Headsets
•
Robust Architecture
–
–
–
20V Maximum Input Voltage Tolerance,
with Input OV Protection Clamp
Portable Media Players
Other Hand-Held Devices
Thermal Shutdown and Over Current
Protection
Temperature Monitoring and Fault
Detection
DESCRIPTION
The bq5105x is a high efficiency, wireless power receiver with Li-Ion/Li-Pol battery charge controller for portable
applications. The bq5105x device provides efficient AC/DC power conversion, integrates digital controller
required to comply with Qi v1.1 communication protocol and all necessary control algorithms needed for efficient
and safe Li-Ion and Li-Pol battery charger. Together with bq500210 transmitter-side controller, the bq5105x
enables a complete wireless power transfer system for direct battery charger solution. By utilizing near-field
inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by
transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to
the battery. Global feedback is established from the receiver to the transmitter in order to stabilize the power
transfer process. This feedback is established by utilizing the Qi v1.1 communication protocol.
The bq5105x devices integrate a low-impedance synchronous rectifier, low-dropout regulator, digital control,
charger controller, and accurate voltage and current loops in a single package. The entire power stage (rectifier
and LDO) utilize low resistive N-MOSFET’s (100mΩ typical Rdson) to ensures high efficiency and low power
dissipation.
Wired
Charger
Q1
USB or
AC Adapter
bq5105xB
C5
Input
/AD-EN
AD
BATT
CCOMM1
COMM1
BOOT1
AC1
C4
C3
CBOOT1
D1
C1
RECT
TS
R4
TI
Wireless
Power
Transmitter
TX
COIL
RX
COIL
PACK+
C2
NTC
AC2
BOOT2
COMM2
ROS
CBOOT2
CCOMM2
CCLAMP2
CCLAMP1
PACK-
/CHG
CLAMP2
CLAMP1
ILIM
TERM
EN2
Tri-State
Bi-State
HOST
FOD
PGND
R5
R1
RFOD
Figure 1. Typical System Blocks Show bq5105xB Used as a Wireless Power Li-Ion/Li-Pol Battery Charger
Note: Visit ti.com/wirelesspower for product details and design resources
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ORDERING INFORMATION
ORDERING NUMBER
(TAPE AND REEL)
PART NO.
IC MARKING
bq51050B
bq51050B
bq51051B
bq51051B
PACKAGE
WCSP-28
VQFN-20
WCSP-28
VQFN-20
QUANTITY
bq51050BYFPR
bq51050BYFPT
3000
250
bq51050B
bq51050BRHLR
bq51050BRHLT
3000
250
bq51051BYFPR
bq51051BYFPT
3000
250
bq51051B
bq51051BRHLR
bq51051BRHLT
3000
250
AVAILABLE OPTIONS
DEVICE
FUNCTION
VRECT-OVP
VRECT(REG)
VBAT(REG)
4.2V
NTC MONITORING
JEITA
bq51050B
bq51051B
4.2V Li-Ion Wireless Battery Charger
4.35V Li-Ion Wireless Battery Charger
15V
Track
Track
15V
4.35V
JEITA
ABSOLUTE MAXIMUM RATINGS(1)(2)
over operating free-air temperature range (unless otherwise noted)
VALUES
UNITS
MIN
MAX
20
AC1, AC2, RECT, COMM1, COMM2, BAT(OUT), CHG, CLAMP1, CLAMP2
–0.3
–0.3
–0.3
–0.3
V
AD, AD-EN
30
V
Input voltage
BOOT1, BOOT2
EN2, TERM, FOD, TS-CTRL, ILIM
AC1, AC2
26
V
7
V
A(RMS)
A
Input current
2
Output current
BAT(OUT)
1.5
15
CHG
mA
A
Output sink current
COMM1, COMM2
1.0
150
150
2
Junction temperature, TJ
Storage temperature, TSTG
–40
–65
°C
°C
Human body model (HBM)(100pF, 1.5kΩ)
kV
ESD Rating
Charged device model (CDM)
500
V
(1) 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 under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to the VSS terminal, unless otherwise noted.
2
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
THERMAL INFORMATION
YFP
28-PINS
58.9
0.2
RHL
20-PINS
37.7
THERMAL METRIC(1)
UNITS
θJA
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
θJCtop
θJB
35.5
9.1
13.6
°C/W
ψJT
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
1.4
0.5
ψJB
8.9
13.5
θJCbot
n/a
2.7
space
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
MAX UNIT
VIN
Input voltage range
Input current
RECT
RECT
BAT
4.0
10.0
1.5
1.5
1
V
A
IIN
IBAT
IAD-EN
ICOMM
TJ
BAT(output) current
Sink current
A
AD-EN
COMM
mA
mA
°C
COMM sink current
Junction temperature
500
125
0
TYPICAL APPLICATION SCHEMATIC
Wired
Charger
bq5105x
AD-EN
AD
BAT
CCOMM1
CBOOT1
C4
COMM1
BOOT1
AC1
USB or
AC Adapter
Input
D1
RECT
C1
R4
C3
C5
PACK+
COIL
C2
NTC
TS
AC2
ROS
BOOT2
COMM2
PACK-
CBOOT2
CHG
CCOMM2
CCLAMP2
CCLAMP1
CLAMP2
CLAMP1
ILIM
TERM
EN2
Tri-State
Bi-State
HOST
R5
PGND
FOD
R1
RFOD
Figure 2. bq5105x Used as a Wireless Power Receiver and Li-Ion/Li-Pol Battery Charger
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
MAX UNIT
ELECTRICAL CHARACTERISTICS
Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
VUVLO
Under-voltage lock-out
VRECT: 0V → 3V
2.6
2.7
2.8
V
mV
mV
V
Hysteresis on UVLO
VRECT: 3V → 2V
VRECT: 16V → 5V
VRECT: 5V → 16V
250
150
15
VHYS-UVLO
Hysteresis on OVP
VRECT
Input over-voltage threshold
VRECT regulation voltage
14.5
15.5
(1)
VRECT-REG
5.11
V
ILOAD Hysteresis for dynamic VRECT thresholds as a %
of IILIM
ILOAD
ILOAD falling
5%
300
8.3
3.1
VBAT = 3.5 V,
VTRACK
Tracking VRECT regulation above VBAT
mV
V
IBAT ≥ 500mA
VRECT-REV = VBAT – VRECT
VBAT = 10V
,
VRECT-REV
VRECT-DPM
Rectifier reverse voltage protection at the BAT(output)
9
Rectifier under voltage protection, restricts IBAT at
VRECT-DPM
3
3.2
V
QUIESCENT CURRENT
IBAT = 0, 0°C ≤ TJ ≤ 85°C
8
2
10
3
mA
mA
Active chip quiescent current consumption from RECT
(in the prswireless power is present)
IRECT
IBAT = 300mA, 0°C ≤ TJ ≤ 85°C
VBAT = 4.2V, 0°C ≤ TJ ≤ 85°C
Quiescent current at the BAT when wireless power is
disabled(Standby)
IQ
12
20
120
165
µA
ILIM SHORT PROTECTION
Highest value of ILIM resistor considered a fault (short).
Monitored for IBAT > 100 mA
RILIM: 200 Ω → 50 Ω. IBAT latches off, cycle
power to reset
RILIM-SHORT
tDGL-Short
ILIM_SC
Ω
Deglitch time transition from ILIM short to IBAT disable
1
ms
mA
ILIM-SHORT,OK enables the ILIM short comparator when
IBAT is greater than this value
IBAT: 0 → 200 mA
IBAT: 200 → 0 mA
110
145
ILIM-SHORT,
Hysteresis for ILIM-SHORT,OK comparator
Maximum output current limit
30
mA
A
OK
HYSTERESIS
Maximum IBAT that will be delivered for 1
ms when ILIM is shorted
IBAT-CL
2.4
0.85
22
BATTERY SHORT PROTECTION
VBAT(SC)
BAT pin short-circuit detection/pre-charge threshold
VBAT: 3 V → 0.5 V, no deglitch
VBAT: 0.5 V → 3 V
0.75
12
0.8
V
VBAT(SC)-HYS VBAT(SC) hysteresis
100
mV
Source current to BAT pin during short-circuit
detection
IBAT(SC)
VBAT = 0V
18
mA
V
PRECHARGE
VLOWV
Pre-charge to fast charge transition threshold
Pre-charge current as a percentage of IBAT
VBAT: 2 V → 4 V
2.9
3.0
3.1
VLOWV > VBAT > VBAT(SC)
,
KPRECHG
18%
20%
23%
IBAT: 50 – 300 mA
tpre-charge
Pre-charge timeout
VBAT<VLOWV
30
25
25
min
ms
ms
tDGL1(LOWV)
tDGL2(LOWV)
TIMERS
De-glitch time, pre- to fast-charge
De-glitch time, fast- to pre-charge
Tfast-charge
Tpre-charge
OUTPUT
Fast-charge timer
Pre-charge timer
VLOWV < VBAT < VBAT(REG)
VBAT-SHORT < VBAT < VLOWV
36000
1800
sec
sec
bq51050B
bq51051B
4.16
4.30
4.2
4.35
110
300
4.22
4.37
190
VOREG
Regulated BAT(output) voltage
IBAT = 1000 mA
V
VDO
Drop-out voltage, RECT to BAT
IBAT = 1A
mV
AΩ
mA
mA
KILIM
Current programming factor
RLIM = KILIM / IILIM
290
330
320
IBAT
Battery charge current limit programming range
Current limit during communication
1500
420
ICOMM-CL
390
(1) VRECT(REG) is over ridden when rectifier fold back mode is active (VRECT(REG)-TRACKING).
4
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
TERMINATION
Programmable termination current as a percentage of
IILIM
KTERM
ITERM
RTERM = %IILIM x KTERM
200
40
240
50
280
55
Ω/%
Constant current at the TERM pin to bias the
termination reference
µA
VBAT(REG) VBAT(REG) VBAT(REG)
–135mV –110mV –90mV
VBAT(REG) VBAT(REG) VBAT(REG)
bq51050B
bq51051B
VRECH
Recharge threshold
V
V
–125mV
–95mV
–70mV
TS / CTRL
ITS-Bias < 100 µA (periodically
VTS
Internal TS bias voltage
2
2.2
2.4
60
driven see tTS/CTRL-Meas
VTS: 50% → 60%
VTS: 60% → 50%
VTS: 60% → 50%
VTS: 40% → 50%
VTS: 50% → 40%
VTS: 25% → 15%
VTS: 15% → 25%
VTS: 20% → 5%
VTS: 5% → 20%
)
Rising threshold
57
55
58.7
56.3
2.4
47.8
2
VOC
Falling threshold
57 %VTSB
Hysteresis on 0C Comparator
Rising threshold
V10C
46
18
12
49 %VTSB
%VTSB
V10C-Hyst
V45C
V45C-Hyst
V60C
V60C-Hyst
I45C
VCTRL-HI
VCTRL-LOW
Hysteresis on 10C Comparator
Falling threshold
19.6
3
21 %VTSB
%VTSB
Hysteresis on 45C Comparator
Falling threshold
13.1
1
14 %VTSB
%VTSB
Hysteresis on 60C Comparator
ILIM reduction percentage at 45c
CTRL pin threshold for a high
CTRL pin threshold for a low
VTS: 25% → 15%, ILOAD = IILIM
VTS/CTRL: 50 → 150 mV
45
80
50
50
55
130
100
%
100
80
mV
mV
VTS/CTRL: 150 → 50 mV
Time period of TS/CTRL measurements--when VTSB TS bias voltage is only driven when
TTS/CTRL-Meas
24
10
20
ms
ms
kΩ
is being driven
communication packets are sent
tTS-Deglitch
Deglitch time for all TS comparators
Pull-up resistor for the NTC network. Pulled up to the
TS bias LDO.
NTC-Pullup
18
22
Nominal resistance requirement at 25c of the NTC
resistor
NTC-RNOM
NTC-Beta
10
kΩ
Beta requirement for accurate temperature sensing via
the above specified thresholds
3380
Ω
THERMAL PROTECTION
Thermal shutdown temperature
Thermal shutdown hysteresis
OUTPUT LOGIC LEVELS ON /CHG
155
20
°C
°C
TJ
VOL
Open drain CHG pin
ISINK = 5 mA
500
1
mV
µA
VCHG = 20 V,
0°C ≤ TJ ≤ 85°C
IOFF,CHG
CHG leakage current when disabled
COMM PIN
RDS-
Comm1 and Comm2
Vrect = 2.6V
1
Ω
ON(COMM)
fCOMM
Signaling frequency on COMM pin
Comm pin leakage current
2.00
Kb/s
µA
VCOMM1 = 20 V,
VCOMM2 = 20 V
IOFF,Comm
1
CLAMP PIN
RDS-
Clamp1 and Clamp2
0.75
Ω
ON(CLAMP)
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
MAX UNIT
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
SYNCHRONOUS RECTIFIER
IBAT at which the synchronous rectifier enters half
synchronous mode, SYNC_EN
IBAT 200 → 0 mA
80
115
25
140
mA
IBAT
Hysteresis for IBAT,RECT-EN (full-synchronous mode
enabled)
IBAT 0 → 200 mA
High-side diode drop when the rectifier is in half
synchronous mode
VHS-DIODE
IAC-VRECT = 250 mA, and TJ = 25°C
0.7
V
EN2
VIL
Input low threshold for EN2
Input high threshold for EN2
EN2 pull down resistance
0.4
V
V
VIH
1.3
RPD, EN
ADC
200
kΩ
0W – 5W received power after calibration
of Rx magnetics losses
PowerREC
Received power measurement
0.25
W
6
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
DEVICE INFORMATION
SIMPLIFIED BLOCK DIAGRAM
RECT
I
BAT
VOUT,FB
VREF,ILIM
_
+
_
VILIM
+
VOUT,REG
VREF,IABS
+
_
VIABS,FB
ILIM
VIN,FB
VIN,DPM
+
_
AD
+
_
VREFAD,OVP
BOOT2
BOOT1
_
+
VREFAD,UVLO
AD-EN
AC1
AC2
Sync
Rectifier
Control
VREF,TS-BIAS
VFOD
+
_
FOD
TS_0
TS_10
+
_
COMM1
COMM2
VBG,REF
VIN,FB
VOUT,FB
VILIM
+
_
DATA_
OUT
VIABS,FB
TS_45
+
_
ADC
TS/CTRL
CLAMP1
CLAMP2
VIABS,REF
VIC,TEMP
TS_60
+
_
Digital Control
And Charger
VFOD
TS_DETECT
+
_
50uA
VRECT
VOVP,REF
VREF_100MV
+
_
OVP
CHG
+
_
TERM
TERM
EN2
ILIM
200kW
PGND
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
YFP Package
3.0mm x 1.9mm 28-Pin WCSP
(TOP VIEW)
RHL Package
4.35mm x 3.35mm 20-Pin QFN
(TOP VIEW)
PGND
1
PGND
20
A1
A2
A3
A4
AC1
2
AC2
19
PGND
PGND
PGND
PGND
BOOT1
3
RECT
18
B1
B2
B3
B4
AC2
AC2
AC1
AC1
BAT
4
BOOT2
17
C1
C2
C3
C4
BOOT2
RECT
RECT
BOOT1
CLMP1
5
CLMP2
16
D1
D2
D3
D4
BAT
BAT
BAT
BAT
COM1
6
COM2
15
E1
E2
E3
E4
COM2
CLMP2 CLMP1
COM1
FOD
14
CHG
7
F1
F2
F3
F4
TS/
CTRL
13
AD-EN
8
TS/CTRL
FOD
AD-EN
CHG
G1
G2
G3
G4
AD
9
ILIM
12
ILIM
EN2
TERM
AD
EN2
11
TERM
10
PIN FUNCTIONS
NAME
AC1
WCSP
B3, B4
B1, B2
C4
QFN
I/O
I
DESCRIPTION
2
19
3
Input power from receiver coil.
AC2
I
BOOT1
BOOT2
O
O
Bootstrap capacitors for driving the high-side FETs of the synchronous rectifier. Connect a 10nF
ceramic capacitor from BOOT1 to AC1 and from BOOT2 to AC2.
C1
17
Filter capacitor for the internal synchronous rectifier. Connect a ceramic capacitor to PGND.
Depending on the power levels, the value may be 4.7μF to 22μF.
RECT
BAT
C2, C3
18
4
O
O
D1, D2,
D3, D4
Output pin, delivers power to the battery while applying the internal charger profile.
Open-drain output used to communicate with primary by varying reflected impedance. Connect
through a capacitor to either AC1 or AC2 for capacitive load modulation (COMM2 must be
connected to the alternate AC1 or AC2 pin). For resistive modulation connect COMM1 and COMM2
to RECT via a single resistor; connect through separate capacitors for capacitive load modulation.
COM1
COM2
E4
E1
6
O
O
Open-drain output used to communicate with primary by varying reflected impedance. Connect
through a capacitor to either AC1 or AC2 for capacitive load modulation (COMM1 must be
connected to the alternate AC1 or AC2 pin). For resistive modulation connect COMM1 and COMM2
to RECT via a single resistor; connect through separate capacitors for capacitive load modulation.
15
CLMP1
CLMP2
E3
E2
5
O
O
Open drain FETs which are utilized for a non-power dissipative over-voltage AC clamp protection.
When the RECT voltage goes above 15 V, both switches will be turned on and the capacitors will
act as a low impedance to protect the IC from damage. If used, Clamp1 is required to be connected
to AC1, and Clamp2 is required to be connected to AC2 via 0.47µF capacitors.
16
A1, A2,
A3, A4
PGND
1, 20
–
Power ground
8
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
PIN FUNCTIONS (continued)
NAME
WCSP
QFN
I/O
DESCRIPTION
Programming pin for the battery charge current. Connect external resistor to VSS. Size RILIM with
the following equation: RILIM = 300 / IILIM where IILIM is the desired battery charge current.
ILIM
G1
12
I/O
Connect this pin to the wired adapter input. When a voltage is applied to this pin wireless charging is
disabled and AD_EN is driven low. Connect to GND through a 1µF capacitor. If unused, capacitor is
not required and should be grounded directly.
AD
G4
F3
F1
9
8
I
O
I
AD-EN
TS/CTRL
Push-pull driver for external PFET when wired charging is active.
Must be connected to ground via a NTC resistor. If an NTC function is not desired, connect to GND
with a 10 kΩ resistor. As a CTRL pin pull to ground to send end power transfer (EPT) fault to the
transmitter or pull-up to an internal rail (i.e. 1.8 V) to send EPT termination to the transmitter.
13
Input that allows the termination threshold to be programmable. KTERM = 240 Ω/%. Set the
termination threshold by applying the following equation RTERM = %IILIM × KTERM where %IILIM is the
desired percentage of fast charge current when termination should occur.
TERM
EN2
G3
G2
10
11
I
I
EN2=0 enables wired charging source if AD input volatge is above 3.6V, wireless charging is
enabled if AD input volatge is < 3.6V, EN2=1 disables wired charging source; wireless power is
always enabled if present.
FOD
CHG
F2
F4
14
7
I
Input for the rectified power measurement. Connect to GND with a 188 Ω resistor.
O
Open-drain output – active when charging of the battery is active.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
TYPICAL CHARACTERISTICS
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
Pre-charge & fast charge mode
Taper mode
0
1
2
3
4
5
0.00
1.00
2.00
3.00
4.00
5.00
Output Power (W)
Output Power (W)
Figure 4. IC Efficiency (AC input to DC output)
Figure 3. Rectifier Efficiency
5.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
6.0
5.0
4.0
3.0
2.0
1.0
Vrect
Vbat
Pre-charge & fast charge mode
Taper mode
Precharge & fast charge mode
Taper mode
RILIM=600W
0.00
0.20
0.40
0.60
0.80
1.00
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Output Current (A)
Figure 5. Vrect, Vbat Vs Output Current
Output Current (A)
Figure 6. Vrect vs Output Current at RILIM=600Ω
10
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
TYPICAL CHARACTERISTICS (continued)
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0
70
60
50
40
30
Pre-charge & fast charge mode
Taper mode
20
10
0
0.2
0.4
0.6
0.8
1
1.2
0
1
2
3
4
Output Current (A)
Figure 7. Output Ripple vs Output Current
Output Power (W)
Figure 8. System Efficiency (DC input to DC output)
VRECT
VRECT
VBAT
VBAT
IBAT
IBAT
Figure 9. Battery Insertion in Pre-Charge Mode
Figure 10. Battery Insertion in Fast-Charge Mode
VRECT
VRECT
VTS/CTRL
VTS/CTRL
VBAT
VBAT
IBAT
IBAT
Figure 11. TS Fault
Figure 12. TS Ground Fault
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
TYPICAL CHARACTERISTICS (continued)
VTS/CTRL
VRECT
VRECT
VBAT
IBAT
VBAT
IBAT
Figure 13. Pre-Charge to Fast Charge Transition
Figure 14. JEITA Functionality (Rising Temp)
VRECT
VRECT
VTS/CTRL
VBAT
IBAT
VBAT
IBAT
Figure 15. JEITA Functionality (Falling Temp)
Figure 16. Battery Short to Pre-Charge Mode Transition
12
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
PRINCIPLE OF OPERATION
Power
bq5105x
Voltage/
Current
Conditioning
System
AC to DC
Drivers
Rectification
Communication
LI-Ion
Battery
Battery
Charger
Controller
V/I
Sense
Controller
bq500210
Transmitter
Receiver
Figure 17. WPC Wireless Power Charging System Indicating the Functional Integration of the bq5105x
A Brief Description of the Wireless System
A wireless system consists of a charging pad (primary, transmitter) and the secondary-side equipment. There are
coils in the charging pad and in the secondary equipment which magnetically coupled to each other when the
equipment is placed on the charging pad. Power is transferred from the primary to the secondary by transformer
action between the coils. Control over the amount of power transferred is achieved by changing the frequency of
the primary drive.
The secondary can communicate with the primary by changing the load seen by the primary. This load variation
results in a change in the primary coil current, which is measured and interpreted by a processor in the charging
pad. The communication is digital - packets are transferred from the secondary to the primary. Differential Bi-
phase encoding is used for the packets. The bit rate is 2Kbits / second.
Various types of communication packets have been defined. These include identification and authentication
packets, error packets, control packets, power usage packets, end of power packet and efficiency packets.
The primary coil is powered off most of the time. It wakes up occasionally to see if a secondary is present. If a
secondary authenticates itself to the primary, the primary remains powered up. The secondary maintains full
control over the power transfer using communication packets.
Using the bq5105x as a Wireless Li-Ion/Li-Pol Battery Charger (With reference to Figure 2)
Figure 2 is the schematic of a system which uses the bq5105x as direct battery charger. When the system
shown in Figure 2 is placed on the charging pad (transmitter), the receiver coil couples to the magnetic flux
generated by the coil in the charging pad which consequently induces a voltage in the receiver coil. The internal
synchronous rectifier feeds this voltage to the RECT pin which has the filter capacitor C3.
The bq5105x identifies and authenticates itself to the primary using the COM pins by switching on and off the
COM FETs and hence switching in and out CCOMM. If the authentication is successful, the transmitter will remain
powered on. The bq5105x measures the voltage at the RECT pin, calculates the difference between the actual
voltage and the desired voltage VRECT-REG and sends back error packets to the primary. This process goes on
until the RECT voltage settles at VRECT-REG
.
During power-up, the LDO is held off until the VRECT-REG threshold converges. The voltage control loop ensures
that the output (BAT) voltage is maintained at VBAT-REG to power the system depends on the battery charge
mode. The bq5105x continues to monitor the VRECT and VBAT and maintains sending error packets to the primary
every 250ms. The bq5105x regulates the VRECT voltage very close to battery voltage, this voltage tracking
process minimizes the voltage difference across the internal LDO and maximize the charging efficiency. If a large
transient occurs, the feedback to the primary speeds up to every 32ms in order to converge on an operating
point in less time.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
13
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
Battery Charge Profile
The bq5105x charger monitors the battery current at all times and reduces the charge current when the system
load requires current above the input current limit. The charge profile is shown in Figure 18.
Precharge
Phase
Current Regulation
Phase
Voltage Regulation
Phase
VRECT-REG
-
Regulation
voltage
IBULK
Rectifier voltage
VBAT + 300mV
VLOWV
(3.0V)
Battery
Voltage
VBAT-SHORT
(1.0V)
35% of IBULK
Charge Current
Termination
Current
Threshold
IPRECHARGE
IBATSHORT
Tx Turned
OFF
Exits
VRECT -TRACK
20% Precharge to
Close Pack Protector
VRECT -TRACK
Figure 18. Li-Ion Battery Charger Profile
This allows for proper charge termination and timer operation. Under normal battery charging conditions, the
system voltage is approximately equal to the battery voltage, however if the battery is deeply discharged, the
system voltage does not drop below 3.5V. This minimum system voltage support enables the system to run with
a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or
no battery.
The battery is charged in three phases: precharge, fast-charge constant current and constant voltage. In all
charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if
the internal temperature threshold is exceeded. Additionally, a voltage-based battery pack thermistor monitoring
input (TS) is included that monitors battery temperature for safe charging. The TS function for bq5105x is JEITA
compatible.
Battery Charging Process
Precharge Mode (VBAT ≤ VLOWV
)
The bq5105X enters pre-charge mode when VBAT ≤ VLOWV. Upon entering precharge mode, battery charge
current limit is set to IPRECHARGE. During pre-charge mode, the charge current is regulated to 20% of the fast
charge current (IBULK) setting.
If the battery is deeply discharged or shorted (VBAT < VBAT-SHORT), the bq5105X applies IBAT-SHORT current to bring
the battery voltage up to acceptable charging levels. Once the battery rises above VBAT-SHORT, the charge current
is regulated to IPRECHARGE.
Under normal conditions, the time spent in this pre-charge region is a very short percentage of the total charging
time and this does not affect the overall charging efficiency for very long.
14
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
Fast Charge Mode /Constant Voltage Mode
Once VBAT > VLOWV, the bq5105x enters fast charge mode (Current Regulation Phase) where charge current is
regulated using the internal MOSFETs between RECT and BAT.Once the battery voltage charges up to VBAT-REG
,
the bq5105x enters constant voltage (CV) phase and regulates battery voltage to VBAT(REG) and the charging
current is reduced.
Once the input current falls below the termination threshold (ITERM),the charger goes into high impedance.
Battery Charge Current Setting Calculations
RILIM Calculations
The bq5105x includes a means of providing hardware overcurrent protection by means of an analog current
regulation loop. The hardware current limit provides an extra level of safety by clamping the maximum allowable
output current (e.g., a current compliance). The calculation for the total RILIM resistance is as follows:
300
R1 =
- RFOD
RILIM = R1 + RFOD
IBULK
(1)
Where IBULK is the expected maximum battery charge current during fast charge mode and IBULK is the hardware
over current limit. When referring to the application diagram shown in Figure 2, RILIM is the sum of RFOD(188Ω)
and the resistance from the ILIM pin to GND).
Termination Calculations
The bq5105X includes a programmable upper termination threshold. This pin can be used to send the charge
status 100% packet (CS100) to the transmitter in order to indicate a full charge status. The header for this packet
is 0x05. Note that this packet does not turn off the transmitter and is only used as an informative indication of the
mobile device’s charge status. The upper termination threshold is calculated using Equation 2:
RTERM = KTERM ´%IBULK
(2)
The KTERM constant is specified in the datasheet as 240. The upper termination threshold is set as a percentage
of the ILIM setting.
For example, if the ILIM resistor is set to 300 Ω the ILIM current will be 1A (300 ÷ 300). If the upper termination
threshold is desired to be 100 mA, this would be 10% of ILIM. The RTERM resistor would then equal 2.4 kΩ
(240 x 10).
Battery-Charger Safety and JEITA Guidelines
The bq5105x continuously monitors battery temperature by measuring the voltage between the TS pin and GND.
A negative temperature coefficient thermistor (NTC) and an external voltage divider typically develop this voltage.
The bq5105x compares this voltage against its internal thresholds to determine if charging is allowed. To initiate
a charge cycle, the voltage on TS pin must be within the VT1 to VT4 thresholds. If VTS is outside of this range, the
bq5105x suspends charge and waits until the battery temperature is within the VT1 to VT4 range.
If VTS is within the range of VT1 and VT2, the charge current is reduced to IBULK/2. if VTS is within the range of VT2
and VT3, the maximum charge voltage regulation is 4.25V. if VTS is within VT3 and VT4, the maximum charge
voltage regulation is reduced back to 4.10V and charge current is reduced to IBULK/2. Figure 19 summarizes the
operation.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
15
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
Maximum Charge Current: 1C
0.5C
Charge Voltage: 4.35V (bq51051B)
Charge Voltage: 4.2V (bq51050B)
4.2V (bq51051B)
4.1V (bq51050B)
T1
(0°C)
T2
(10°C)
T3
(45°C)
T4
(60°C)
Figure 19. JEITA Compatible TS Profile
Input over-voltage
If, for some condition (e.g., a change in position of the equipment on the charging pad), the rectifier voltage
suddenly increases in potential, the voltage-control loop inside the bq5105x becomes active, and prevents the
output from going beyond VBAT-REG. The receiver then starts sending back error packets every 30ms until the
RECT voltage comes back to an acceptable level, and then maintains the error communication every 250ms.
If the input voltage increases in potential beyond VOVP, the IC switches off internal FET and tells the primary to
bring the voltage back to VRECT(REG). In additional a proprietary voltage protection circuit is activated by means of
Cclamp1 and Cclamp2 that protects the IC from voltages beyond the maximum rating of the IC (e.g., 20V).
End Power Transfer Packet (WPC Header 0x02)
The WPC allows for a special command to terminate power transfer from the TX termed End Power Transfer
(EPT) packet. The v1.1 specifies the below reasons and their responding data field value. The Condition column
corresponds to the case where the bq5101x device will send this command.
REASON
VALUE
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
CONDITION
Unknown
AD > 3.6V
Charge Complete
Internal Fault
Over Temperature
Over Voltage
Over Current
Battery Failure
Reconfigure
TS/CTRL = 1
TJ > 150°C or RILIM < 100Ω
TS < VHOT, TS > VCOLD, or TS/CTRL < 100mV
Not Sent
Not Sent
Not Sent
Not Sent
No Response
VRECT target does not converge
16
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
Status Outputs
The bq5105x provides one status output, CHG. This output is an open-drain NMOS device that is rated to 20 V.
The open-drain FET connected to the CHG pin will be turned on whenever the output (BAT) of the chagrer is
enabled. As a note, the output of the charger supply will not be enabled if the VRECT(REG) does not converge at
the no-load target voltage.
Communication Modulator
The bq5105x provides two identical, integrated communication FETs which are connected to the pins COM1 and
COM2. These FETs are used for modulating the secondary load current which allows bq5105x to communicate
error control and configuration information to the transmitter. Figure 20 shows how the COMM pins can be used
for resistive load modulation. Each COMM pin can handle at most a 24Ω communication resistor. Therefore, if a
COMM resistor between 12Ω and 24Ω is required COM1 and COM2 pins must be connected in parallel. bq5105x
does not support a COMM resistor less than 12Ω.
Figure 20. Resistive Load Modulation
In addition to resistive load modulation, the bq5105x is also capable of capacitive load modulation as shown in
Figure 21. In this case, a capacitor is connected from COM1 to AC1 and from COM2 to AC2. When the COMM
switches are closed there is effectively a 22 nF capacitor connected between AC1 and AC2. Connecting a
capacitor in between AC1 and AC2 modulates the impedance seen by the coil, which will be reflected in the
primary as a change in current.
Figure 21. Capacitive Load Modulation
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
17
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
Synchronous Rectification
The bq5105x provides an integrated, self-driven synchronous rectifier that enables high-efficiency AC to DC
power conversion. The rectifier consists of an all NMOS H-Bridge driver where the back gates of the diodes are
configured to be the rectifier when the synchronous rectifier is disabled. During the initial startup of the WPC
system the synchronous rectifier is not enabled. At this operating point, the DC rectifier voltage is provided by the
diode rectifier. Once VRECT is greater than UVLO, half synchronous mode will be enabled until the load current
surpasses 140 mA. Above 140 mA the full synchronous rectifier stays enabled until the load current drops back
below 100 mA where half synchronous mode is enabled instead.
Internal Temperature Sense (TS)
The bq5105x includes a ratiometric battery temperature sense circuit. The temperature sense circuit has two
ratiometric thresholds which represent a hot and cold condition. An external temperature sensor is recommended
to provide safe operating conditions to the receiver product. This pin is best utilized when monitoring the surface
that can be exposed to the end user.
The circuit in Figure 22 allows for any NTC resistor to be used with the given VHOT and VCOLD thresholds.
20 kΩ
R2
TS-CTRL
R1
R3
NTC
Figure 22. NTC Circuit used for Safe Operation of the Wireless Receiver Power Supply
The resistors R2 and R3 can be solved by resolving the system of equations at the desired temperature
thresholds. The two equations are:
æ
ç
ç
è
ö
÷
÷
ø
R3 RNTC
TCOLD
R3 + RNTC
TCOLD
%VCOLD
=
´100
æ
ç
ç
è
ö
÷
÷
ø
R3 RNTC
TCOLD
+ R2
R3 + RNTC
TCOLD
(3)
(4)
æ
ç
ç
è
ö
÷
÷
ø
R3 RNTC
THOT
R3 + RNTC
THOT
%VHOT
=
´100
æ
ç
ç
è
ö
÷
÷
ø
R3 RNTC
THOT
+ R2
R3 + RNTC
THOT
Where:
RNTC
1
b
1
-
(
)
TCOLD
To
= Roe
TCOLD
1
1
b
-
(
)
THOT
To
RNTC
= Roe
THOT
18
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
TCOLD and THOT are the desired temperature thresholds in degrees Kelvin. Ro is the nominal resistance and β is
the temperature coefficient of the NTC resistor. An example solution for part number ERT-JZEG103JA is:
R2 = 7.81 kΩ
R3 = 13.98 kΩ
Where,
TCOLD = 0°C
THOT = 0°C
β = 4500
Ro = 10 kΩ
The plot of the percent VTSB vs temperature is shown in Figure 23:
Figure 23. Example Solution for Panasonic Part # ERT-JZEG103JA
Figure 24 illustrates the periodic biasing scheme used for measuring the TS state. The TS_READ signal enables
the TS bias voltage for 25 ms. During this period the TS comparators are read (each comparator has a 10 ms
deglitch) and appropriate action is taken based on the temperature measurement. After this 25 ms period has
elapsed the TS_READ signal goes low, which causes the TS-Bias pin to become high impedance. During the
next 100 ms period the TS voltage is monitored and compared to 100 mV. If the TS voltage is greater than 100
mV then a secondary device is driving the TS/CTRL pin and a CTRL = ‘1’ is detected.
Figure 24. Timing Diagram for TS Detection Circuit
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
19
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
TS/CTRL Function:
The TS-CTRL pin offers three functions:
1. NTC temperature monitoring,
2. Charge done indication,
3. Fault indication
When NTC is connected between TS/CTRL pin and the GND, the NTC is function is allowed to operate. If the
TS/CTRL pin is pulled to the battery voltage, the Rx is shutdown with the indication of a charge complete
condition. If the TS-CTRL pin is pulled to GND, The Rx is shutdown with the indication of a fault.
Thermal Protection
The bq5105x includes a thermal shutdown protection. If the die temperature reaches TJ(OFF), the LDO is shut
off to prevent any further power dissipation.
WPC 1.1 Compatibility
The bq5105x is a WPC 1.1 compatible device, In order to enable a Power Transmitter to monitor the power loss
across the interface as one of the possible methods to limit the temperature rise of Foreign Objects, the
bq51050B reports its Received Power to the Power Transmitter. The Received Power equals the power that is
available from the output of the Power Receiver plus any power that is lost in producing that output power. For
example, the power loss includes (but is not limited to) the power loss in the Secondary Coil and series resonant
capacitor, the power loss in the Shielding of the Power Receiver, the power loss in the rectifier, the power loss in
any post-regulation stage, and the eddy current loss in metal components or contacts within the Power Receiver.
In WPC1.1 specification, foreign object detection (FOD) is enforced, that means the bq51050B will send received
power information with known accuracy to the transmitter.
WPC 1.1 defines Received Power is “the average amount of power that the Power Receiver receives through its
Interface Surface, in the time window indicated in the Configuration Packet”.
A Receiver will be certified as WPC 1.1 only after meeting following requirement The DUT (Device Under Test) is
tested on a Reference Transmitter whose transmitted power is calibrated, the receiver must send a received
power such that:
0 < (TX PWR) REF – (RX PWR out) DUT < 250mW
This 250mW bias ensures that system will remain interoperable.
WPC 1.1 Transmitter will be tested to see if they can detect reference Foreign Objects with a Reference receiver.
WPC1.1 Specification will allow much more accurate sensing of Foreign Objects.
A Transmitter can be certified as a WPC 1.1 only after meeting the following requirement- A Transmitter is tested
to see if it can prevent some reference Foreign Objects (disc, coin, foil) from exceeding their threshold
temperature (60°C, 80°C).
Series and Parallel Resonant Capacitor Selection
Shown in Figure 2, the capacitors C1 (series) and C2 (parallel) make up the dual resonant circuit with the
receiver coil. These two capacitors must be sized correctly per the WPC v1.1 specification. Figure 25 illustrates
the equivalent circuit of the dual resonant circuit:
20
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
www.ti.com
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
C1
Ls’
Figure 25. Dual Resonant Circuit with the Receiver Coil
Section 4.2 (Power Receiver Design Requirements) in volume 1 of the WPC v1.1 specification highlights in detail
the sizing requirements. To summarize, the receiver designer will be required take inductance measurements
with a fixed test fixture. The test fixture is shown in Figure 26:
Figure 26. WPC v1.1 Receiver Coil Test Fixture for the Inductance Measurement Ls’
The primary shield is to be 50 mm x 50 mm x 1 mm of Ferrite material PC44 from TDK Corp. The gap dZ is to be
3.4 mm. The receiver coil, as it will be placed in the final system (e.g. the back cover and battery must be
included if the system calls for this), is to be placed on top of this surface and the inductance is to be measured
at 1-V RMS and a frequency of 100 kHz. This measurement is termed Ls’. This measurement is termed Ls or the
free-space inductance. Each capacitor can then be calculated using Equation 5:
1
C1 =
(2p´ ¦s)2 ´L's
1
C2 =
æ
ö
÷
ø
1
(2p´ ¦ )2 ´ L -
ç
D
s
C1
è
(5)
Where fS is 100 kHz +5/–10% and fD is 1 MHz ±10%. C1 must be chosen first prior to calculating C2. The quality
factor must be greater than 77 and can be determined by Equation 6:
2p´ ¦D ´Ls
Q =
R
(6)
Where R is the DC resistance of the receiver coil. All other constants are defined above.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
21
Product Folder Links: bq51050B bq51051B
bq51050B
bq51051B
SLUSB42C –JULY 2012–REVISED FEBRUARY 2013
www.ti.com
REVISION HISTORY
Changes from Original (August 2012) to Revision A
Page
•
•
•
•
•
•
•
•
Changed bq51051B from product preview to production data ............................................................................................. 2
Changed Regulated BAT(output) voltage ............................................................................................................................. 4
Changed Recharge threshold ............................................................................................................................................... 5
Deleted ITS-Bias-Max .................................................................................................................................................................. 5
Changed VCOLD to VOC and values ........................................................................................................................................ 5
Changed V45C values ............................................................................................................................................................ 5
Changed V60C values ............................................................................................................................................................ 5
Changed Figure 19 ............................................................................................................................................................. 16
Changes from Revision A (August 2012) to Revision B
Page
•
•
•
Changed last features bullet from: 1.9 x 3.0mm WCSP and 4.5 x 3.5mm QFN Package Options to: Available in
small WCSP and QFN packages .......................................................................................................................................... 1
Changed Figure 1 and changed caption from: Wireless Power Consortium (WPC or Qi) Inductive Power Charging
System, to: Typical System blocks shows bq5105xB used as a Wireless Power Li-Ion/Li-Pol Battery Charger ................. 1
Added note: Visit ti.com/wirelesspower for product details and design resources ............................................................... 1
Changes from Revision B (September 2012) to Revision C
Page
•
First release of the full data sheet ........................................................................................................................................ 1
22
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51050B bq51051B
PACKAGE OPTION ADDENDUM
www.ti.com
27-Feb-2013
PACKAGING INFORMATION
Orderable Device
BQ51050BRHLR
BQ51050BRHLT
BQ51050BYFPR
BQ51050BYFPT
BQ51051BRHLR
BQ51051BRHLT
BQ51051BYFPR
BQ51051BYFPT
Status Package Type Package Pins Package Qty
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
(1)
(2)
(3)
(4)
ACTIVE
QFN
QFN
RHL
20
20
28
28
20
20
28
28
3000
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
SNAGCU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-1-260C-UNLIM
Level-1-260C-UNLIM
BQ51050B
BQ51050B
BQ51050B
BQ51050B
BQ51051B
BQ51051B
BQ51051B
BQ51051B
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
RHL
YFP
YFP
RHL
RHL
YFP
YFP
Green (RoHS
& no Sb/Br)
DSBGA
DSBGA
QFN
3000
250
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
SNAGCU
3000
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
SNAGCU
QFN
Green (RoHS
& no Sb/Br)
DSBGA
DSBGA
3000
250
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
SNAGCU
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
27-Feb-2013
(4) Only one of markings shown within the brackets will appear on the physical device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Mar-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
BQ51050BRHLR
BQ51050BRHLT
BQ51050BYFPR
BQ51050BYFPT
BQ51051BRHLR
BQ51051BRHLT
BQ51051BYFPR
BQ51051BYFPT
QFN
QFN
RHL
RHL
YFP
YFP
RHL
RHL
YFP
YFP
20
20
28
28
20
20
28
28
3000
250
330.0
180.0
180.0
180.0
330.0
180.0
180.0
180.0
12.4
12.4
8.4
3.8
3.8
2.0
2.0
3.8
3.8
2.0
2.0
4.8
4.8
1.6
1.6
0.6
0.6
1.6
1.6
0.6
0.6
8.0
8.0
4.0
4.0
8.0
8.0
4.0
4.0
12.0
12.0
8.0
Q1
Q1
Q1
Q1
Q1
Q1
Q1
Q1
DSBGA
DSBGA
QFN
3000
250
3.13
3.13
4.8
8.4
8.0
3000
250
12.4
12.4
8.4
12.0
12.0
8.0
QFN
4.8
DSBGA
DSBGA
3000
250
3.13
3.13
8.4
8.0
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Mar-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
BQ51050BRHLR
BQ51050BRHLT
BQ51050BYFPR
BQ51050BYFPT
BQ51051BRHLR
BQ51051BRHLT
BQ51051BYFPR
BQ51051BYFPT
QFN
QFN
RHL
RHL
YFP
YFP
RHL
RHL
YFP
YFP
20
20
28
28
20
20
28
28
3000
250
367.0
210.0
210.0
210.0
367.0
210.0
210.0
210.0
367.0
185.0
185.0
185.0
367.0
185.0
185.0
185.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
DSBGA
DSBGA
QFN
3000
250
3000
250
QFN
DSBGA
DSBGA
3000
250
Pack Materials-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
supplied at the time of order acknowledgment.
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.
TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of
non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.
Products
Applications
Audio
www.ti.com/audio
amplifier.ti.com
dataconverter.ti.com
www.dlp.com
Automotive and Transportation www.ti.com/automotive
Communications and Telecom www.ti.com/communications
Amplifiers
Data Converters
DLP® Products
DSP
Computers and Peripherals
Consumer Electronics
Energy and Lighting
Industrial
www.ti.com/computers
www.ti.com/consumer-apps
www.ti.com/energy
dsp.ti.com
Clocks and Timers
Interface
www.ti.com/clocks
interface.ti.com
logic.ti.com
www.ti.com/industrial
www.ti.com/medical
Medical
Logic
Security
www.ti.com/security
Power Mgmt
Microcontrollers
RFID
power.ti.com
Space, Avionics and Defense
Video and Imaging
www.ti.com/space-avionics-defense
www.ti.com/video
microcontroller.ti.com
www.ti-rfid.com
www.ti.com/omap
OMAP Applications Processors
Wireless Connectivity
TI E2E Community
e2e.ti.com
www.ti.com/wirelessconnectivity
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2013, Texas Instruments Incorporated
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明