AL8862
60V 1A STEP-DOWN LED DRIVER NEW PRODUCT Description Pin Assignments
(Top View) The AL8862 is a step-down DC/DC converter designed to drive LEDs
with a constant current. The AL8862 operates with an input supply
voltage from 5V to 60V and provides an externally adjustable output
current up to 1A. Series connection of the LEDs provides identical
LED currents resulting in uniform brightness and eliminating the need
for ballast resistors. The AL8862 switches at frequency up to 1MHz.
This allows the use of smaller size external components, hence
minimizing the PCB size.
The AL8862 integrates the power switch and a high-side output
current sensing circuit. Maximum output current of AL8862 is set via
an external resistor connected between the VIN and SET input pins.
Dimming is achieved by applying either a DC voltage or a PWM
signal at the CTRL input pin. The soft-start time can be adjusted using
an external capacitor from the CTRL pin to ground. An input voltage
of 0.3V or lower at CTRL pin will shut down the power switch. 8 CTRL 7 GND 3 6 SW 4 5 SW SET 1 GND 2 NC
VIN EP SO-8EP Applications
п‚ п‚ п‚ п‚ Commercial & Industrial Lighting
Appliances Interior Lighting
Architecture Detail Lighting
External Driver with Multiple Channels and Smart Lighting Features
п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ Wide Input Voltage Range: 5V to 60V …