APW7008 Ver la hoja de datos (PDF) - Anpec Electronics

Número de pieza

componentes Descripción

Lista de partido

APW7008

1X/1.5X/2x Charge Pump White LED Driver

Anpec Electronics 

APW7008

Block Diagram

C1+

C1-

C2+

C2-

VIN

EN

CTRL0

CTRL1

CTRL2

POR &

SOFT-START

CURRENT LIMIT

1x/1.5x/2x MODE CHARGE PUMP AND

GATE CONTROL LOGIC

LED ON/OFF

CONTROL

1MHz

OSCILLATOR

0.18V

0.1V

MODE SELECT

AND

MIN ILED SELECT

1.2V

ISET

CONTROLLED

CURRENT

MIRROR

Error

Amp

1.2V

+

+

+

+

-

-

-

-

VOUT

ILED1

ILED2

ILED3

ILED4

GND

Typical Application Circuit

Digital

Inputs

COUT

1µF

16

15

14

13

ILED1 ILED2 ILED3 ILED4

1 EN

GND 12

2 CTRL0

3 CTRL1

APW7008

C1- 11

C1+ 10

CTRL2

4

ISET VOUT VIN

5

6

7

C2-

9

C2+

8

RSET

CIN

1µF

C2

1µF

C1

1µF

Battery

Copyright © ANPEC Electronics Corp.

5

Rev. A.3 - Feb., 2009

www.anpec.com.tw

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