AP8802H
60V 1A LED STEP-DOWN CONVERTER
Description
Pin Assignments
The AP8802H is a step-down DC/DC converter designed to drive
(Top View)
LEDs with a constant current. The device can drive up to thirteen
LEDs, depending on the forward voltage of the LEDs, in series from
SET 1
a voltage source of 8V to 60V. Series connection of the LEDs
8 CTRL
7 GND
GND 2
provides identical LED currents resulting in uniform brightness and
eliminating the need for ballast resistors. The AP8802H switches at
NC 3
frequency up to 700kHz. This allows the use of small size external
VIN
components, hence minimizing the PCB area needed.
AP8802H
4
6 SW
5 SW
PRODUCT
NEW
PRELIMINARY
Maximum output current of AP8802H is set via an external resistor
connected between the VIN and SET input pins.
Dimming is
SO-8EP
achieved by applying either a DC voltage or a PWM signal at the
CTRL input pin. An input voltage of 0.2V or lower at CTRL shuts
down the output at SW and puts the device into a low-current
Applications
standby state.
Features
•
Commercial & industrial lighting
•
Small LCD panel backlight
•
LED driving current up to 1A
•
Appliances interior lighting
•
High efficiency up to 95%
•
Architecture Detail lighting
•
Operating input voltage up to 60V
•
5% nominal accuracy
•
High switching frequency up to 700kHz
•
PWM/DC input for dimming control
•
Built-in output open-circuit protection
•
SO-8EP is available in “Green” Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
