AAT3120 Datasheet, PDF (2/14 Pages) Advanced Analogic Technologies – 3-Channel Charge Pump For White LED Applications

AAT3120
3-Channel Charge Pump
For White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
C2+
OUT
C1-
C1+
N/C
D3
D2
D1
EN/SET
IN
GND
C2-
Function
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and
C2-.
Charge pump output. Requires 1µF capacitor connected between this pin and
ground.
Flying capacitor 1 negative terminal.
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and
C1-.
No connection.
Current source output #3.
Current source output #2.
Current source output #1.
Control pin.
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground.
Flying capacitor 2 negative terminal.
Pin Configuration
TSOPJW-12
(Top View)
C2+ ¹
OUT ²
C1- ³
C1+ ⁴
N/C ⁵
D3 ⁶
12 _C2-
11 _GND
10 _IN
9 _EN/SET
8 _D1
7 _D2
2
3120.2005.11.1.1