Datasheet > AAT3685

AAT3685

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
23页	455K
描述
Lithium-Ion/Polymer Battery Charger

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数据手册

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AAT3685 数据手册

AAT3685

Lithium-Ion/Polymer Battery Charger

Pin Descriptions

Pin #

Name

Type

Function

ADP/USB

BAT

Line adapter or USB power supply input.

In/Out

Ground

In/Out

Battery charging and sensing.

GND

Ground connection.

CHR

Resistor divider to set USB voltage regulation for charge reduction mode.

Leave this pin open for default 4.5V USB regulation point. Tie to ADP/USB

pin to disable this function.

In/Out

Out

Enable pin. Logic high enables the IC.

Connect to 10kΩ NTC thermistor.

DATA

Status report to microcontroller via serial interface, open-drain.

Battery charge status indicator pin to drive an LED: active low, open-drain.

When ADP/USB is present, use this pin to toggle between SETH and SETL

charging levels.

STAT2

STAT1

PWRSEL

Out

SETL

SETH

In/Out

Connect resistor here to set charge current for low-current port.

Connect resistor here to set charge current for high-current port.

Exposed paddle (bottom); connect to GND directly beneath package.

Pin Configuration

TDFN33-12

(Top View)

ADP/USB

BAT

SETH

SETL

PWRSEL

STAT1

STAT2

DATA

GND

CHR

3685.2006.02.1.2

123 4 5 6 7...23

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