AAT3143 Datasheet, PDF (2/11 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications

AAT3143
High Efficiency 1X/1.5X/2X Charge Pump with
PWM Control for White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
C2+
CP
C1-
C1+
D3
D2
D4
D1
EN/PWM
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-.
Current source output #3.
Current source output #2.
Current source output #4.
Current source output #1.
Enable/PWM 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
CP ²
C1- ³
C1+ ⁴
D3 ⁵
D2 ⁶
12 _C2-
11 _GND
10 _IN
9 _EN/PWM
8 _D1
7 _D4
2
3143.2006.05.1.0