General Description

The HV9982 is a three-channel, closed loop, peak current mode PWM controller for driving a constant output current. It can be used for driving either RGB LEDs or multiple channels of white LEDs.

Features

Switch mode controller for single-switch converters

Closed loop control of output current

    ♦ Buck

    ♦ Boost

    ♦ SEPIC

High PWM dimming ratio

Internal 40V linear regulator

Constant frequency operation

Programmable slope compensation

Linear and PWM dimming

+0.2A/-0.4A gate drives for the switching FETs

Output short circuit protection

Output over voltage protection

Hiccup mode protection

Analog control of PWM dimming



Applications

RGB backlight applications

Multiple string white LED driver applications