AAT3682 データシートの表示（PDF） - Skyworks Solutions

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AAT3682

Li-Ion/Polymer Linear Battery Charger

Skyworks Solutions 

DATA SHEET

AAT3682

Li-Ion/Polymer Linear Battery Charger

Pin Descriptions

Pin #

1

2, 3, 8, 12

4

5

6

7

9

10

11

13

14

15

16

EP

Symbol

TS

N/C

STAT

VSS

DRV

T2X

BAT

VSS

GATE

VP

CSI

BSENSE

VCC

Function

Battery temperature sense input.

Not connected.

Battery charger status output. Connect an LED in series with 2.2k from STAT to VIN for a visual

monitor battery charge state or connect to a microcontroller to monitor battery status. A 100k

resistor should be placed between STAT and VIN for this function.

Common ground connection.

Battery charge control output.

Battery trickle charge control input. Connect this pin to VSS to double the battery trickle charge cur-

rent. Leave this pin floating for normal trickle current (10% of full charge current). To enter micro-

controller fast-read status, pull this pin high during power up.

Battery charge control output. Current regulated output to charge the battery. For best operation, a

0.1μF ceramic capacitor should be placed between BAT and GND.

Common ground connection.

Input voltage for biasing the pass device.

Battery charge power input.

Current sense input.

Battery voltage sense input.

AAT3682 bias input power.

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

Pin Configuration

QFN44-16

(Top View)

TS 1

N/C 2

N/C 3

STAT 4

AAT3682

12 N/C

11 GATE

10 VSS

9 BAT

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

2

201884B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012

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