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STW4102 数据表(PDF) 5 Page - STMicroelectronics

部件名 STW4102
功能描述  Dual USB/wall adapter Li-ion battery charger with gas gauge
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW4102 数据表(HTML) 5 Page - STMicroelectronics

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STw4102
Pin assignment
5/34
2
Pin assignment
P
In this table, the following conventions are used:
I: Input
O: Output
I/O: Bidirectional
OD: Open Drain
A: Analog
D: Digital
Table 1.
Pin descriptions
Pin #
Pin name
Type
Function
1
MAIN
Supply
Main power input from wall adapter or USB charger
2
VOUT
O_A
Power path output
3
USBPWR
Supply
Power supply from USB cable
4
DRIVER
O_A
Driver for external power switch (PMOS or PNP)
5
LDODRV
O_A
LDO power PMOS driver
6
LDOFB
I_A
LDO feedback regulation
7
ISET
O_A
Resistor to program the main charge current
8
CVREF
I_A
Bypass capacitor for internal voltage reference
9
GND
Ground
Analog and digital ground
10
CVIS
I_A
Bypass capacitor for internal supply
11
ICG+
I_A
Gas gauge sense resistor
12
ICG-
I_A
Gas gauge sense resistor
13
C32KHZ
I_D
External 32kHz clock input
14
STDBY
I_D
Gas gauge standby input (active low)
15
RESETN
I_D
Digital register reset (active low)
16
SDA
IO_D
I2C serial data.
17
SCL
I_D
I2C serial clock.
18
VIO
Supply
Supply for I/O
19
SENSE
I_A
Sense resistor input to regulate the charge current
20
BATT
Supply
Battery power voltage
21
BATTSENSE
I_A
Battery sense voltage
22
EOCHG
OD
End of charge output status. Pulled low when the fast
charge current is above 10% of its programmed
maximum value.
23
TEST
I_D
Reserved pin for factory test. To be connected to
ground.
24
PWRDETECTN
OD
Main or USB plug-in detection. Pulled low when power
is detected, open when no power is detected.



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