STW4102IQT STMicroelectronics, STW4102IQT Datasheet - Page 2

IC LI-ION BATT CHRGR DUAL 24QFN

STW4102IQT

Manufacturer Part Number
STW4102IQT
Description
IC LI-ION BATT CHRGR DUAL 24QFN
Manufacturer
STMicroelectronics
Datasheet

Specifications of STW4102IQT

Function
Battery Monitor
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4.25 V ~ 16 V
Operating Temperature
-30°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-QFN
Product
Charge Management
Output Voltage
4.7 V
Output Current
100 mA to 1000 mA
Operating Supply Voltage
4.25 V to 16 V
Supply Current
2 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 30 C
Mounting Style
SMD/SMT
For Use With
497-8514 - BOARD EVAL STW4102/STM32497-8338 - BOARD EVAL BASED ON STW4102
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6840-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STW4102IQT
Quantity:
3 900
Company:
Part Number:
STW4102IQT
Quantity:
10
Contents
Contents
1
2
3
4
5
6
7
8
9
10
2/34
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical performance curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1
5.2
5.3
Battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
Low drop-out regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Battery monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.1
8.2
Factory OTP options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
I
10.1
2
C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Charge from USB or wall adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Charge currents higher than 1 Amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Using LDO regulator to supply telephone from wall adapter . . . . . . . . . . 16
Charge cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Trickle charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Charging from a wall adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Charging from a USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Charging using external power devices . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Charge mode summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Watchdog timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Thermal regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Gas gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Read and write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
STw4102

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