General Description

The MAX16818 pulse-width modulation (PWM) LED driver controller provides high-output-current capability in a compact package with a minimum number of external components. The MAX16818 is suitable for use in synchronous and nonsynchronous step-down (buck) topologies, as well as in boost, buck-boost, SEPIC, and Cuk LED drivers. The MAX16818 is the first LED driver controller that enables Maxim’s technology for fast LED current transients of up to 20A/µs and 30kHz dimming frequency.

Benefts and Features

● Flexible Architecture Supports a Range of LED Lighting Applications with Minimal Component Count

    • Up to 30A Output Current

    • 4.75V to 5.5V or 7V to 28V Input Voltage Range

    • Average-Current-Mode Control

    • True-Differential Remote-Sense Input

● Frequency Management Reduces EMI and Interference with Other System Clocks

    • Programmable Switching Frequency or External Synchronization from 125kHz to 1.5MHz

    • Clock Output for 180° Out-of-Phase Operation

● Integrated Protection Features and Thermally Enhanced Package Improve System Reliability

    • Output Overvoltage and Hiccup-Mode Overcurrent Protection

    • Thermal Shutdown

    • Thermally Enhanced 28-Pin TQFN Package

Applications

● Front Projectors/Rear Projection TVs

● Portable and Pocket Projectors

● LCD TVs and Display Backlight