MAX16801BEUA

离线和DC-DC PWM控制器，用于高亮度LED驱动器 Off-Line and DC-DC PWM Controllers for High-Brightness LED Drivers

General Description

The MAX16801A/B/MAX16802A/B high-brightness HB driver-control ICs contain all the circuitry required

for the design of wide-input-voltage-range LED drivers for general lighting and display applications. The

MAX16801 is well suited for universal input rectified 85VAC to 265VAC LED drivers, while the MAX16802 is

intended for low-input-voltage 10.8VDC to 24VDC LED drivers.

Features

♦Suitable for Buck, Boost, Flyback, SEPIC, and Other Topologies

♦Up to 50W or Higher Output Power

♦Universal Offline Input Voltage Range: Rectified 85VAC to 265VAC MAX16801

♦IN Pin Directly Driven From 10.8VDC to 24VDC Input MAX16802

♦Internal Error Amplifier with 1% Accurate Reference for Precise LED Current Regulation

♦PWM or Linear Dimming

♦Fixed Switching Frequency of 262kHz ±12%

♦Thermal Shutdown

♦Digital Soft-Start

♦Programmable Input Startup Voltage

♦Internal Bootstrap UVLO with Large Hysteresis MAX16801

♦45µA typ Startup Supply Current, 1.4mA typ Operating Supply Current

♦50% MAX16801A/MAX16802A or 75% MAX16801B/MAX16802B Maximum Duty Cycle

♦Available in a Tiny 8-Pin µMAX Package

Applications

Offline and DC-DC LED Drivers

RGB Back Light for LCD TVs and Monitors

Commercial and Industrial Lighting

Decorative and Architectural Lighting