GENERAL DESCRIPTION
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 MAX16801A/B/MAX16802A/B A wide dimming range can be implemented by using low-frequency PWM dimming. The MAX16801/MAX16802 feature an input undervoltage lockout (UVLO) for programming the input-supply start voltage, and to ensure proper operation during brownout conditions.