AAT3159 Datasheet, PDF (2/15 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

ChargePump^TM
PRODUCT DATASHEET
AAT3159
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9, 11
10
12
13
14
Symbol
D4
SET
EN/SET
C1+
C1-
OUT
C2+
C2-
GND
IN
D1
D2
D3
Function
Current sink input #4. Connect to the cathode of LED4. If not used, connect D4 to the OUT pin.
LED current setting resistor input/connection.
S²Cwire serial interface control input for LED current magnitude control.
Positive terminal of charge pump capacitor 1.
Negative terminal of charge pump capacitor 1.
Charge pump output. Connect all LED anodes to OUT.
Positive terminal of charge pump capacitor 2.
Negative terminal of charge pump capacitor 2.
Ground.
Input power supply connection.
Current sink input #1. Connect to the cathode of LED1. If not used, connect D1 to the OUT pin.
Current sink input #2. Connect to the cathode of LED2. If not used, connect D2 to the OUT pin.
Current sink input #3. Connect to the cathode of LED3. If not used, connect D3 to the OUT pin.
Pin Configuration
TSOPJW-14
(Top View)
D4 1
SET 2
EN/SET 3
C1+ 4
C1- 5
OUT 6
C2+ 7
14 D3
13 D2
12 D1
11 GND
10 IN
9 GND
8 C2-
2
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3159.2007.10.1.0