General Description

The HV9980 is a fully integrated 3-channel peak-current PWM controller for driving buck converters in constant output current mode. It is optimized for use with a large array of 20~80mA LED strings, where multiple HV9980 ICs are used sharing a common clock and a common reference voltage.

Features

► Integrated 200V, 25Ω (typ.) MOSFETs

► Programmable output current to 80mA per channel

► TTL compatible PWM dimming inputs

► 3-Phase synchronous operation

► Leading edge blanking

► Short circuit protection with skip mode

► Over-temperature protection

Applications

► LCD panel backlighting

► DLP RPTV or projector LED engine driver

► RGB decorative lighting

► General LED lighting