AAT3683_12 Datasheet, PDF (2/22 Pages) Skyworks Solutions Inc. – 1A Linear Li-Ion Battery Charger

DATA SHEET
AAT3683
1A Linear Li-Ion Battery Charger
Pin Descriptions
Pin
AAT3683-2
1
n/a
AAT3683-4
n/a
16
2
2
3
3
4
4
5
n/a
n/a
5
6
7
7
6
8
15
9
11
10
12
n/a
1, 8, 9, 10,
13, 14
EP
Name
STAT
STAT1
TERM
GND
CT
ADPP#
STAT2
TS
BAT
IN
ISET
EN
N/C
Type Function
Charge status pin, open drain.
O
Charge status pin, open drain.
Charge termination current programming input pin (internal default 10%
termination current if TERM is open).
I
Ground.
Charge timer programming input pin (no timer if grounded).
Input supply power-good status pin, open drain.
O
Charge status pin, open drain.
I/O
Battery temperature sense pin. (Leave this TS pin open to disable this
function in AAT3683-2).
O
Connect to Li-Ion battery.
Input from USB port/AC adapter connector.
I
Charge current programming input pin.
Active high enable pin (with internal pull-down).
Not connected.
Exposed paddle (bottom); connect to ground as closely as possible to the
device.
Pin Configuration
AAT3683-2
STDFN2.2x2.2-10
(Top View)
AAT3683-4
QFN33-16
(Top View)
STAT ¹
TERM ²
GND ³
CT ⁴
ADPP# ⁵
10 _EN
9 _ISET
8 _IN
7 _BAT
6 _TS
N/C ¹
TERM ²
GND ³
CT ⁴
12 _EN
11 _ISET
10 _N/C
9 _N/C
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
2
201885B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012