MAX14566BEETA [MAXIM]
USB Host Charger Identification Analog Switches 2mm x 2mm, 8-Pin TDFN Package; USB主机充电器识别模拟开关采用2mm x 2mm ， 8引脚TDFN封装
| 型号： | MAX14566BEETA |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | USB Host Charger Identification Analog Switches 2mm x 2mm, 8-Pin TDFN Package |
| 文件： | 总15页 (文件大小：1596K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-5293; Rev 1; 3/11
USB Host Charger Identification
Analog Switches
General Description
Features
The MAX14566E/MAX14566AE/MAX14566BE are sec-
ond-generation USB devices that combine Hi-Speed
USB analog switches with a USB host charger (dedicated
charger) identification circuit. These devices support both
the latest USB Battery Charging Specification Revision 1.2
including data contact detection and a set resistor bias
for Apple-compliant devices as well as legacy USB D+/D-
short detection using data line pullup. The MAX14566E
has a pMOSFET open-drain control output (CEN) and the
MAX14566AE has an nMOSFET open-drain control output
(CEN) to restart the peripheral connected to the USB host.
S Hi-Speed USB Switching
S Low 4.0pF (typ) On-Capacitance
S Low 4.0I (typ) On-Resistance
S Ultra-Low 0.1I (typ) On-Resistance Flatness
S +2.8V to +5.5V Supply Range
S Ultra-Low 3µA (typ) Supply Current
S Automatic Current-Limit Switch Control
S Automatic USB Charger Identification Circuit
S
15ꢀV High ESD HBM Protection On DP/DM
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low 4.0I
(typ) on-resistance. In addition, the devices feature a
single digital input (CB) to switch between pass-through
mode and autodetection charger mode. The USB host
charger identification circuit allows a host USB port to
support USB chargers with shorted DP/DM detection
and to provide support for Apple-compliant devices
using a resistor bias on USB data lines. When an Apple-
compliant device is attached to the port in autodetection
charger mode, the devices supply the voltage to the DP
and DM lines from the internal resistor-divider. If a USB
Revision 1.2-compliant device is attached, the devices
short DP and DM to allow correct charger detection. The
MAX14566BE features an additional digital input (CB1)
to allow forced charger mode.
S 2mm x 2mm, 8-Pin TDFN Pacꢀage
S -40NC to +85NC Operating Temperature Range
Applications
Laptops
Netbooks
M
M
Universal Charger including iPod /iPhone Chargers
Ordering Information/
Selector Guide
PIN-
PACKAGE
CLS
TOP
PART
CONTROL MARK
MAX14566EETA+
8 TDFN-EP*
ADJ
ADK
BMR
CEN
CEN
—
MAX14566AEETA+ 8 TDFN-EP*
MAX14566BEETA+ 8 TDFN-EP*
These devices have enhanced, high electrostatic dis-
charge (ESD) protection on the DP and DM inputs up
to Q15kV Human Body Model (HBM). All the devices
are available in an 8-pin (2mm x 2mm) TDFN package,
and are specified over the -40NC to +85NC extended
temperature range.
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
EXTERNAL
POWER SUPPLY
5V SWITCHING
POWER SUPPLY
OVERCURRENT PROTECTOR
CEN
APPLE
DOCK OR iPhone
iPod
APPLE DOCK
CONNECTOR
USB A
Li+
BATTERY
PHONE OR MP3
PLAYER
V
BUS
LAPTOP CHIPSET
CEN
D-
TDM
DM
DP
USB
TRANSCEIVER
USB
A CONNECTOR
MAX14566E
MICRO-USB
CONNECTOR
D+
USB A
MICRO B
TDP
GND
STANDBY
CB
iPhone and iPod are registered trademarks of Apple, Inc.
_______________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
USB Host Charger Identification
Analog Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Operating Temperature Range.......................... -40NC to +85NC
V
, TDP, TDM, CB, DP, DM, CEN/CEN, CB1....-0.3V to +6.0V
Junction Temperature .....................................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
CC
Continuous Current into any Terminal............................. Q30mA
Continuous Power Dissipation (T = +70NC)
A
TDFN (derate 11.9mW/NC above +70NC) ....................954mW
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 THERMAL CHARACTERISTICS (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (q )...........84°C/W
JA
Junction-to-Case Thermal Resistance (q )................37°C/W
JC
Note 1: 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.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.8V to 5.5V, T = T
A
to T
unless otherwise noted. Typical values are at V = 5.0V, T = +25NC.) (Note 2)
CC A
MIN
MAX,
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY (MAX14566E/MAX14566AE)
V
V
> V
2.8
5.5
5.25
2
V
V
CB
IH
Power-Supply Range
Supply Current
V
CC
= 0V (Note 3)
4.75
CB
V
V
V
V
= 3.3V
CC
CC
CC
CC
V
= V
CB
CB
CC
= 5.5V
7
I
FA
FA
CC
= 4.75V
= 5.25V
110
120
200
200
2
V
= 0V
Supply Current Increase
DI
0 P V P V or V P V P V
CC
CB
IL
IH
CB
CC
POWER SUPPLY (MAX14566BE)
V
CB
= V and V
= V or V = V
CB1 CC CB CC
CC
and V
= 0V or V = 0V and
2.8
5.5
V
V
CB1
CB
Power-Supply Range
Supply Current
V
CC
V
CB1
= V
CC
V
CB
= 0V and V
= 0V (Note 3)
4.75
5.25
2
CB1
V
V
V
V
= V and
CC
CB
V
V
= 3.3V
= 5.5V
CC
= V
or
CB1
CC
= V and
CB
CC
7
CC
= 0V
CB1
I
CC
mA
mA
V
V
= 4.75V
= 5.25V
110
120
200
200
V
V
= 0V and
CC
CB
= 0V
CB1
CC
V
V
= 0V and
V
V
= 5.0V for TYP
= 5.5V for MAX
CB
CC
3
1
1
7
= V
CB1
CC
CC
V
= 0V; 0 ≤ V ≤ V
CB IL
CB1
and V ≤ V
≤ V
(Note 4)
IH
CB
CC
Supply Current Increase
DI
CC
V
= 0V; 0 ≤ V
≤ V
CB
CB1
IL
and V ≤ V
≤ V (Note 4)
CC
IH
CB1
2
USB Host Charger Identification
Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.8V to 5.5V, T = T
A
to T
, unless otherwise noted. Typical values are at V
= 5.0V, T = +25NC.) (Note 2)
CC A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog-Signal Range
V ,V
DP DM
0
V
CC
V
On-Resistance TDP/TDM Switch
R
V
V
= V
= 0V to V , I = I
= 10mA
4.0
0.1
6.5
I
ON
DP
DM
CC DP
DM
On-Resistance Match Between
Channels TDP/TDM Switch
= 5.0V, V = V
= 400mV,
CC
DP
DM
DR
I
ON
I
= I
DM
= 10mA
DP
On-Resistance Flatness TDP/
TDM Switch
V
= 5.0V, V = V
= 0 to V
,
CC
DP
DM
CC
R
0.1
40
I
I
FLAT
I
= I
DM
= 10mA
DP
On-Resistance of DP/DM Short
R
V
CB
= 0V, V = 1V, I = I = 10mA
DM
70
SHORT
DP
DP
I
I
V
V
= 3.6V, V = V
= 0.3V to 3.3V,
TDPOFF,
CC
DP
DM
Off-Leakage Current
-250
-250
+250
nA
= V = 3.3V to 0.3V, V = 0V
TDM CB
TDMOFF
TDP
V
V
= 3.6V, V = V
= 3.3V to 0.3V,
CC
DP
DM
On-Leakage Current
DYNAMIC PERFORMANCE
Turn-On Time
I
,I
+250
nA
DPON DMON
= V
CB
CC
V
TDP
or V = 1.5V, R = 300I,
TDM L
t
20
1
100
5
Fs
Fs
ps
ON
C = 35pF, Figure 1
L
V
TDP
or V = 1.5V, R = 300I,
TDM L
Turn-Off Time
t
OFF
C = 35pF, Figure 1
L
TDP, TDM Switch Propagation
Delay
t
, t
R = R = 50I
60
PLH PHL
L
S
Skew between DP and DM when
connected to TDP and TDM,
Output Skew
t
40
ps
SK(O)
R = R = 50I, Figure 2
L
S
TDP, TDM Off-Capacitance
C
f = 1MHz
2.0
4.0
pF
pF
OFF
DP, DM On-Capacitance
(Connected to TDP, TDM)
C
f = 240MHz
5.5
ON
-3dB Bandwidth
BW
R = R = 50I (Note 4)
1000
-20
MHz
dB
L
S
V , V = 0dBm, R = R = 50I,
TDP DP L S
Off-Isolation
V
ISO
f = 250MHz, Figure 3 (Note 4)
V
, V = 0dBm, R = R = 50I,
TDP DP
L
S
Crosstalk
V
CT
-25
dB
f = 250MHz, Figure 3 (Note 4)
INTERNAL RESISTORS
DP/DM Short Pulldown
RP1/RP2 Ratio
R
335
1.485
95
500
1.5
710
1.515
176
kI
Ratio
kI
PD
RT
RP
RP1 + RP2 Resistance
RM1/RM2 Ratio
R
126
0.85
94
RP
RT
0.843
70
0.865
132
Ratio
kI
RM
RM
RM1 + RM2 Resistance
COMPARATORS
R
DM1 Comparator Threshold
DM1 Comparator Hysteresis
DM2 Comparator Threshold
DM2 Comparator Hysteresis
DP Comparator Threshold
V
V
DM falling
DM falling
DP rising
45
6.31
45
46
1
47
7.6
47
%V
DM1F
CC
CC
CC
%
7
%V
DM2F
1
%
V
46
%V
DPR
3
USB Host Charger Identification
Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.8V to 5.5V, T = T
A
to T
, unless otherwise noted. Typical values are at V
= 5.0V, T = +25NC.) (Note 2)
CC A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DP Comparator Hysteresis
LOGIC INPUT (CB, CB1)
CB/CB1 Input Logic-High
CB/CB1 Input Logic-Low
1
%
V
1.4
-1
V
V
IH
V
0.4
+1
IL
V
= 5.5V, 0V P V P V or
CB IL
CB
CC
CB/CB1 Input Leakage Current
I
FA
IN
V P V P V
IH CC
CEN/CEN OUTPUTS
V
Toggle Time (MAX14566E/
BUS
t
CB = logic 0 to logic 1 or logic 1 to logic 0
0.5
1
2
s
V
VBT
MAX14566AE)
CB = logic 0 to logic 1, I
(MAX14566E only)
= 2mA
V
CC
0.4
-
SOURCE
CEN Output Logic-High Voltage
CEN Output Leakage Current
CEN Output Logic-Low Voltage
V
CC
= 5.5V, V
= 0V, CEN deasserted
CEN
1
0.4
1
FA
V
(MAX14566E only)
CB = logic 0 to logic 1, I
(MAX14566AE only)
= 2mA
SINK
V
CC
= V
= 5.5V, CEN deasserted
CEN
CEN Output Leakage Current
FA
(MAX14566AE only)
ESD PROTECTION
ESD Protection Level
(DP and DM Only)
V
V
HBM
HBM
Q15
Q2
kV
kV
ESD
ESD Protection Level
(All Other Pins)
ESD
Note 2: All units are 100% production tested at T = +25NC. Specifications over temperature are guaranteed by design.
A
Note 3: The part is operational from +2.8V to +5.5V. However, in order to have the valid Apple resistor-divider network, the V
supply must stay within the range of +4.75V to +5.25V.
CC
Note 4: Guaranteed by design.
Test Circuits/Timing Diagrams
V
V
CC
CC
t < 5ns
t < 5ns
f
r
V
IH
LOGIC
INPUT
50%
MAX14566E
MAX14566AE
MAX14566BE
V
IL
D_
TD_
CB
t
V
IN
OFF
V
OUT
V
OUT
R
L
C
L
0.9 x V
0.9 x V
0UT
OUT
LOGIC
INPUT
SWITCH
OUTPUT
0V
GND
t
ON
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
R
L
V
= V
IN
OUT
R
+ R
ON
L
Figure 1. Switching Time
4
USB Host Charger Identification
Analog Switches
Test Circuits/Timing Diagrams (continued)
MAX14566E
MAX14566AE
MAX14566BE
R
R
S
TDP
DP
IN+
IN-
OUT+
OUT-
RISE-TIME PROPAGATION DELAY = t
OR t
PLHY
PLHX
FALL-TIME PROPAGATION DELAY = t
OR t
PHLY
PHLX
|
|
R
R
L
L
t
t
= |t
= |t
- t
| OR |t
- t
- t
SK(O)
SK(P)
PLHX PLHY
PHLX PHLY
- t
| OR |t
PLHX PHLX
PLHY PHLY
S
TDM
DM
CB
V
CC
t
INFALL
t
INRISE
V+
90%
90%
V
IN+
50%
50%
50%
10%
10%
0V
V+
V
50%
IN-
0V
V+
t
t
OUTRISE
10%
OUTFALL
10%
t
t
PLHX
PHLX
90%
90%
V
OUT+
50%
50%
0V
V+
50%
50%
V
OUT-
0V
t
t
PHLY
PLHY
Figure 2. Output Signal Skew
5
USB Host Charger Identification
Analog Switches
Test Circuits/Timing Diagrams (continued)
V
V
OUT
OFF-ISOLATION = 20log
CROSSTALK = 20log
V
V
CC
CC
NETWORK
ANALYZER
IN
V
OUT
50Ω
50Ω
V
V
0V OR V
IN
CC
CB
V
TDP
DP*
IN
MAX14566E
MAX14566AE
MAX14566BE
MEAS
REF
OUT
50Ω
50Ω
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
*FOR CROSSTALK THIS PIN IS DM.
OFF-ISOLATION IS MEASURED BETWEEN TD_ AND "OFF" D_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
Figure 3. Off-Isolation and Crosstalk
Typical Operating Characteristics
(V
CC
= 5V, T = +25NC, unless otherwise noted.)
A
TDP/TDM ON-RESISTANCE
vs. SUPPLY VOLTAGE
DP/DM SHORT ON-RESISTANCE
ON-RESISTANCE vs. V
TDP/TDM
vs. SUPPLY VOLTAGE
5.0
4.5
50
45
40
35
30
25
20
15
10
5
V
= 3.3V
CC
T
A
= +85°C
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
= 2.8V
CC
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
CC
= 2.8V
T
A
= +25°C
V
CC
= 5.5V
V
= 5.5V
T
A
= -40°C
CC
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
(V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
(V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
(V)
V
TDP/TDM
V
V
DP
TDP
6
USB Host Charger Identification
Analog Switches
Typical Operating Characteristics (continued)
(V
CC
= 5V, T = +25NC, unless otherwise noted.)
A
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
TDP/DP LEAKAGE CURRENT
vs. TEMPERATURE
6
5
4
3
2
1
0
45
40
35
30
25
20
15
10
5
CB = V
CC
V
= 3.6V, V = 3.3V
TDP
CC
T
= -40°C
A
ON-LEAKAGE
T
A
= +25°C
T
A
= +85°C
OFF-LEAKAGE
15 30 45 60 75 90
0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
(V)
-45 -30 -15
0
V
TEMPERATURE (°C)
CC
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. LOGIC LEVEL
160
140
120
100
80
24
22
20
18
16
14
12
10
8
V
= 5.5V
CC
t
ON
60
t
OFF
40
6
4
20
2
0
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
(V)
0
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3
LOGIC LEVEL (V)
V
CC
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
AUTODETECTION MODE
MAX14566E toc09
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V
= 5.0V, DP/DM HIGH IMPEDANCE,
CB LOGIC 1 TO LOGIC 0
CC
CB_RISING
DP
1V/div
DM
1V/div
CB_FALLING
CB
2V/div
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
(V)
10µs/div
V
CC
7
USB Host Charger Identification
Analog Switches
Typical Operating Characteristics (continued)
(V
CC
= 5V, T = +25NC, unless otherwise noted.)
A
AUTODETECTION MODE
AUTO RESET
MAX14566E toc10
MAX14566E toc11
V
= 5.0V, DP/DM HIGH IMPEDANCE TO
CC
MAX14566E
0.5V AT DM
CEN
2V/div
DP
500mV/div
0V
0V
DM
500mV/div
CB
2V/div
0V
0V
1ms/div
2s/div
AUTO RESET
USB EYE DIAGRAM
MAX14566E toc12
MAX14566AE
0.5
0.4
0.3
CEN
2V/div
0.2
0.1
HI-SPEED USB TRANSMIT
TEMPLATE
0V
0
-0.1
-0.2
-0.3
-0.4
-0.5
CB
500mV/div
0V
2s/div
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
n
TIME (x 10 - 9)s
8
USB Host Charger Identification
Analog Switches
Pin Configuration
TOP VIEW
TOP VIEW
CB TDM TDP
8
V
CB TDM TDP
8
V
CC
5
CC
5
7
6
7
6
MAX14566E
MAX14566AE
MAX14566BE
*EP
4
*EP
4
1
2
3
1
2
3
CEN DM
(CEN)
TDFN
(2mm × 2mm)
DP GND
CB1 DM
DP GND
TDFN
(2mm × 2mm)
( ) FOR MAX14566AE ONLY
*CONNECT EP TO GND.
Pin Description
PIN
NAME
FUNCTION
MAX14566E
MAX14566AE MAX14566BE
nMOSFET Open-Drain Output, Current-Limit Switch (CLS) Control
Output. If CB changes from logic 0 to logic 1 or from logic 1 to
logic 0, CEN is low for 1s (typ).
—
1
1
—
—
CEN
Active-Low pMOSFET Open-Drain Output, Current-Limit Switch
(CLS) Control Output. If CB changes from logic 0 to logic 1 or
logic 1 to logic 0, CEN is high for 1s (typ).
—
CEN
—
2
—
2
1
2
3
4
CB1
DM
Switch Control Bit. See Table 2.
USB Connector D- Connection
USB Connector D+ Connection
Ground
3
3
DP
4
4
GND
Power Supply. Connect a 0.1FF capacitor between V
as close as possible to the device.
and GND
CC
5
5
5
V
CC
6
7
6
7
6
7
TDP
Host USB Transceiver D+ Connection
Host USB Transceiver D- Connection
TDM
Switch Control Bit. See Table 1.
CB = logic 0, charger mode
CB = logic 1 (PM), pass-through mode active, DP/DM connected
to TDP/TDM
8
8
8
CB
EP
Exposed Pad. Connect EP to ground. Do not use EP as the only
ground connection.
—
—
—
9
USB Host Charger Identification
Analog Switches
Functional Diagram
V
CC
V
CC
MAX14566E
MAX14566AE
MAX14566BE
RP1
RP2
DP
RM1
DM
RM2
500kI
TDP
0.46V
0.46V
0.07V
CC
CC
CC
DP
DM1
DM2
TDM
CB1*
CONTROL LOGIC
ONE SHOT
V
CC
1s
V
BIAS
CEN
(CEN)
CB
GND
( ) FOR MAX14566AE ONLY
*FOR MAX14566BE ONLY
from the supply voltage to minimize supply current
requirements. The resistor-dividers are not connected in
pass-through mode.
Detailed Description
The MAX14566E/MAX14566AE/MAX14566BE are Hi-Speed
USB analog switches that support USB hosts to identify
the USB port as a charger port when the USB host is in
a low-power mode and cannot enumerate USB devices.
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low
4I (typ) on-resistance. DP and DM can handle signals
between 0V and 6V with any supply voltage.
Switch Control
The MAX14566E/MAX14566AE feature a single digital
input, CB, for mode selection (Table 1). Connect CB to
a logic-level low voltage for autodetection charger mode
(AM). See the Autodetection section for more informa-
tion. Connect CB to a logic-level high voltage for normal
high-speed pass-through mode (PM). The MAX14566BE
features dual digital inputs, CB and CB1, for mode selec-
tion (Table 2). Connect CB to a logic-level high for nor-
mal high-speed pass-through mode (PM). Connect CB
to a logic-level low for different charger-mode selection
Resistor-Dividers
All the devices feature an internal resistor-divider for
biasing data lines to provide support for Apple-compliant
devices. When these devices are not operated with the
resistor-divider, they disconnect the resistor-dividers
10
USB Host Charger Identification
Analog Switches
with CB1. Connect CB1 to a logic-level low for auto mode
(AM) or connect CB1 to a logic-level high for forced
dedicated-charger mode (FM).
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
If the voltage at DP is forced higher than the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
Autodetection
All the devices feature autodetection charger mode for
dedicated chargers and USB masters. CB must be set
low to activate autodetection charger mode.
Once the charging voltage is removed, the short between
DP and DM is disconnected for normal operation.
In autodetection charger mode, the MAX14566E moni-
tors the voltages at DM and DP to determine the type of
the device attached. If the voltage at DM is +2.3V (typ)
or higher and the voltage at DP is +2.3V (typ) or lower,
the voltage stays unchanged.
Automatic Peripheral Reset
The MAX14566E/MAX14566AE feature automatic current-
limit switch control output. This feature resets the peripher-
al connected to V
in the event the USB host switches to
BUS
If the voltage at DM is forced below the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
or from standby mode. CEN/CEN provide a 1s (typ) pulse
on the rising or falling edge of CB (Figures 4, 5, and 6).
Table 1. Digital Input State (MAX14566E/MAX14566AE)
CB
MODE
DP/DM
COMMENT
INTERNAL RESISTOR-DIVIDER
Connected
0
AM
Autodetection Circuit Active
Connected to TDP/TDM
Auto Mode
1
PM
USB Traffic Active
Not Connected
Table 2. Digital Input State (MAX14566BE)
CB
CB1
MODE
STATUS
0
0
1
X
AM
Auto Mode
0
FM
Forced Dedicated-Charger Mode: DP/DM Shorted
1
PM
Pass-Through (USB) Mode: Connect DP/DM to TDP/TDM
X = Don't care.
USB PERIPHERAL
ATTACH
STANDBY
PM
PM
CB
AM
AM
t
VBT
CEN
V
BUS
5V
USB CONNECTION
CHARGING CURRENT
1000mA
500mA
1000mA
500mA
1000mA
Figure 4. MAX14566E Peripheral Reset Timing Diagram
11
USB Host Charger Identification
Analog Switches
V
CC
USB
TRANSCEIVER
TDM
TDP
0.1µF
GND
DP
D+
D-
USB
CONNECTION
DM
CEN
CB
V
BUS
150µF
V
CC
CURRENT-LIMIT
SWITCH
V
BUS
+5V POWER
SUPPLY
MAX14566E
EN
10kI
CLS EN
SYSTEM CONTROL
STANDBY
GND
Figure 5. MAX14566E Peripheral Reset Applications Diagram
USB PERIPHERAL
STANDBY
ATTACH
PM
PM
CB
AM
AM
t
VBT
CEN
V
BUS
5V
USB CONNECTION
CHARGING CURRENT
1000mA
500mA
1000mA
500mA
1000mA
Figure 6. MAX14566AE Peripheral Reset Timing Diagram
12
USB Host Charger Identification
Analog Switches
V
CC
USB
TRANSCEIVER
TDM
TDP
0.1µF
GND
DP
D+
D-
USB
CONNECTION
DM
V
BUS
150µF
V
CC
CURRENT-LIMIT
SWITCH
V
BUS
+5V POWER
SUPPLY
MAX14566AE
EN
1kI
CEN
10kI
CLS EN
SYSTEM CONTROL
STANDBY
CB
GND
Figure 7. MAX14566AE V
Discharge Circuit
BUS
is established. CB must be set low to activate data con-
tact detect.
Bus Voltage Discharge
The MAX14566AE automatic current-limit switch control
output can be used to discharge the V during V
BUS
BUS
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
setup, test methodology, and test results.
reset. When the system controls the current-limit switch
for V toggle, the output capacitor can be discharged
BUS
slowly depending upon the load. If fast discharge of the
capacitor is desired, the CEN output can be used
V
BUS
to achieve the fast discharge as shown in Figure 7.
Extended ESD Protection
(Human Body Model)
Data Contact Detect
All the devices support USB devices that require detect-
ing the USB data lines prior to charging. When a USB
Revision 1.2-compliant device is attached, the USB data
lines DP and DM are shorted together. The short remains
until it is detected by the USB device. This feature guar-
antees appropriate charger detection if a USB Revision
1.2-compliant device is attached. The autodetection
charger mode is activated after the data contact detect
ESD-protection structures are incorporated on all pins
to protect against electrostatic discharges up to Q2kV
(HBM) encountered during handling and assembly. DP
and DM are further protected against ESD up to Q15kV
(HBM) without damage. The ESD structures withstand
high ESD both in normal operation and when the device
is powered down. After an ESD event, the device contin-
ues to function without latchup (Figure 8).
13
USB Host Charger Identification
Analog Switches
Typical Application Circuit (MAX14566BE)
V
CC
USB
TRANSCEIVER
TDM
TDP
0.1µF
TDM
TDP
GND
DP
D+
D-
USB
CONNECTION
DM
V
BUS
MAX14566BE
150µF
V
CC
+5V POWER
SUPPLY
V
BUS
CURRENT-LIMIT
SWITCH
EN
EN
CB1
CB
AM/FM
PM
SYSTEM CONTROL
GND
I
(AMPS)
PEAK
R
R
D
C
1MΩ
1.5kΩ
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
100%
90%
r
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
100pF
STORAGE
CAPACITOR
S
36.8%
SOURCE
10%
0
TIME
0
t
RL
t
DL
Figure 8a. Human Body ESD Test Model
Figure 8b. Human Body Current Waveform
Chip Information
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/pacꢀages. 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.
PROCESS: BiCMOS
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN-EP
T822+1
21-0168
90-0064
14
USB Host Charger Identification
Analog Switches
Revision History
REVISION REVISION
PAGES
DESCRIPTION
CHANGED
NUMBER
DATE
10/10
3/11
0
1
Initial release
Changed the USB Battery Charging Specification Revision 1.1 to Revision 1.2
—
1, 13
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim 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 Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
15
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2011 Maxim Integrated Products
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