AAT3122 데이터 시트보기 (PDF) - Analog Technology Inc

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AAT3122

High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

Analog Technology Inc 

AAT3122

High Efficiency 1X/1.5X Fractional 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+

D

EN/SET

IN

GND

C2-

Function

Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.

Charge pump output. Requires 1µF bypass capacitor to ground.

Flying capacitor 1 negative terminal.

Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and C1-.

Output current source with drive capability of up to 120mA.

Input control pin. Serial data interface that controls the level of output current. See

Application Information for more details.

Input power supply. Requires 1µF bypass capacitor to ground.

Ground.

Flying capacitor 2 negative terminal.

Pin Configuration

TSOPJW-12

(Top View)

C2+ 1

OUT 2

C1- 3

C1+ 4

D5

D6

12 C2-

11 GND

10 IN

9 EN/SET

8D

7D

2

3122.2005.11.1.3

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