AAT3691 Datasheet, PDF (2/18 Pages) Skyworks Solutions Inc. – Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package

DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
Pin Descriptions
Pin #
1
2.
3
4
5, 7, 10
6
8, 9
11
12
13
14
15
16
Name
USB
USBCH
ADP
ADPCH
IC
STAT
GND
EN
ADPSET
USBSET
NOBAT
N/C
BAT
Type
I
I/O
I
I/O
I
O
I
I
I
I
O
Function
Input from USB port connector
Output from USB OVP stage, input to battery charger. Decouple with 2.2μF capacitor.
Input from adapter port connector
Output from ADP OVP stage, input to battery charger. Decouple with 2.2μF capacitor.
Internally used. Connect to GND or leave floating.
Charge status indication pin, open drain.
Connect to power ground
Active low enable with internal 200kΩ resistor pull-down to GND.
ADP charge current programming input pin.
USB charge current programming input pin.
No battery present input. Logic “High“ indicates no battery. Internal 1.6MΩ pull-high resistor.
No connection.
Connect to lithium-ion battery.
Pin Configuration
TDFN34-16
(Top View)
USB ¹
USBCH ²
ADP ³
ADPCH ⁴
IC ⁵
STAT ⁶
IC ⁷
GND ⁸
16 _BAT
15 _N/C
14 _NOBAT
13 _USBSET
12 _ADPSET
11 _EN
10 _IC
9 _GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
2
201894B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012