AAT3682

DATA SHEET

Li-Ion/Polymer Linear Battery Charger

2

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

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

Pin Descriptions

Pin #

Symbol

Function

1

TS

Battery temperature sense input.

2, 3, 8, 12

N/C

Not connected.

4

STAT

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

5

VSS

Common ground connection.

6

DRV

Battery charge control output.

7

T2X

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.

9BAT

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.

10

VSS

Common ground connection.

11

GATE

Input voltage for biasing the pass device.

13

VP

Battery charge power input.

14

CSI

Current sense input.

15

BSENSE

Battery voltage sense input.

16

VCC

AAT3682 bias input power.

EP

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

Pin Configuration

QFN44-16

(Top View)

1

2

3

4

12

11

10

9

TS

N/C

N/C

STAT

BAT

VSS

GATE

N/C

AAT3682