AP8802H Datasheet, PDF (2/11 Pages) Diodes Incorporated – 60V 1A LED Step-down Converter

Typical Application Circuit
48V
V_IN
CTRL
SET
C₁ = 2.2µF
AP8802H
GND
SW
AP8802H
60V 1A LED Step-down Converter
R_SET = 0.2 ohm
D₁
L₁ = 100µH
Pin Descriptions
Pin Name
SW
GND
SET
CTRL
V_IN
NC
Description
Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to
reduce EMI.
GND pin
Set Nominal Output Current Pin. Configure the output current of the device.
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 50kΩ, and if the pin is left open V_CTRL = V_REF
Input Supply Pin. Must be locally bypassed.
No connection
AP8802H
Document number: DS32227 Rev. 1 - 2
2 of 11
www.diodes.com
June 2010
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