AAT3142_07 Datasheet, PDF (2/16 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

AAT3142
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Pin Descriptions
Pin #
1
Symbol
C2+
2
CP
3
C1-
4
C1+
5
D3
6
D2
7
GND
8
D1
9
EN/SET
10
IN
11
GND
12
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-.
Current source output #3.
Current source output #2.
Ground pin; must be connected to Pin 11.
Current source output #1.
S²Cwire serial interface control pin.
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground pin; must be connected to Pin 7.
Flying capacitor 2 negative terminal.
Pin Configuration
TSOPJW-12
(Top View)
C2+ ¹
CP ²
C1- ³
C1+ ⁴
D3 ⁵
D2 ⁶
12 _C2-
11 _GND
10 _IN
9 _EN/SET
8 _D1
7 _GND
2
3142.2007.03.1.2