AP8802H datasheet(2/11 Pages) DIODES

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AP8802H

60V 1A LED Step-down Converter

AP8802H

Document number: DS32227 Rev. 1 - 2

2 of 11

www.diodes.com

June 2010

Typical Application Circuit

RSET = 0.2 ohm

AP8802H

L1 = 100µH

VIN

SET

CTRL

GND

C1 = 2.2µF

48V

Pin Descriptions

Pin Name

Description

Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to

reduce EMI.

GND

GND pin

SET

Set Nominal Output Current Pin. Configure the output current of the device.

CTRL

Dimming and On/Off Control Input. Input voltage of 0.2V or lower forces the device into low

current standby mode and shuts off the output. A PWM signal allows the output current to be

adjusted above or below the level set by the resistor connected to SET input pin.

The input impedance is about 50k

Ω, and if the pin is left open V

CTRL = VREF

VIN

Input Supply Pin. Must be locally bypassed.

No connection

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