STNS01 datasheet(5/29 Pages) STMICROELECTRONICS

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STNS01

Pin configuration

Figure 3. Pin configuration (top view)

Table 3. Pin description

Pin name

Pin number

Description

Input supply voltage. Bypass this pin to ground with a 2.2 μF

capacitor

SYS

System output. Bypass this pin to ground with a 2.2 μF ceramic

capacitor

LDO

3.1 V LDO output. Bypass this pin to ground with a 1 μF ceramic

capacitor

Shutdown. Active high. 500 k

Ω internal pull-down

CHG

Charging/Fault flag. Active low

CEN

Charger enable pin. Active high. 500 k

Ω internal pull-up (to LDO)

GND

Ground

NTC

Battery temperature monitor pin

ISET

Fast-charge programming resistor

BATMS

Battery voltage measurement pin

BATSNS

Battery voltage sensing. Connect as close as possible to the

battery’s positive terminal

BAT

Battery - positive terminal. Bypass this pin to GND with a 4.7 μF

ceramic capacitor

Exposed pad

Connect to GND

ISET

GND

CEN

CHG

BAT

BATSNS

BATMS

SYS

LDO

NTC

AM12708v1

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