APW7001QAI-TRG 查看數據表（PDF） - Anpec Electronics

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APW7001QAI-TRG

1X/1.5X/2X Charge Pump White LED Driver for Main and Sub-Displays

Anpec Electronics 

APW7001

Typical Operating Characteristics (Cont.)

Line Transient Response in 1.5x to 2x Mode

6 LEDs at 20mA, VF=3.1V

VIN=2.8V to 3.4V

VIN (1V/div)

VOUT (1V/div)

ILED (20mA/div)

TIME (0.1ms/div)

Pin Description

PIN

NO.

NAME

1

ILED5

2

ILED6

3

ENM

4

ENS

5

ISET

6

VOUT

7

VIN

8

C2+

9

C2-

10

C1+

11

C1-

12

GND

13

ILED1

14

ILED2

15

ILED3

16

ILED4

FUNCTION

Sub-Display LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin. The

charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used.

On/Off and Dimming Control for LED1-4 (Main-Display).

On/Off and Dimming Control for LED5-6 (Sub-Display).

LED Current Set Input. Connect a resistor from ISET to GND to set the LED current. VISET is typically 1.2V.

Output Voltage Pin. Connect VOUT to the LED anodes. Connect a 1µF capacitor from VOUT to GND.

Supply Voltage Input Pin. Connect a 1µF capacitor from VIN to GND.

Bucket Capacitor1 Positive Terminal. Connect a 1µF capacitor from C2+ to C2-.

Bucket Capacitor1 Negative Terminal. Connect a 1µF capacitor from C2+ to C2-.

Bucket Capacitor1 Positive Terminal. Connect a 1µF capacitor from C1+ to C1-.

Bucket Capacitor1 Negative Terminal. Connect a 1µF capacitor from C1+ to C1-.

Device Ground Pin.

Main-Display LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin.

The charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used.

Copyright © ANPEC Electronics Corp.

9

Rev. A.4 - Oct., 2009

www.anpec.com.tw

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