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AT9933

Part Number	AT9933
Manufacturer	Microchip
Description	Hysteretic Boost-Buck LED Driver
Published	Jan 15, 2017
Detailed Description	AT9933 Hysteretic Boost-Buck (Ćuk) LED Driver IC with High-Side Current Sensing Features • AEC-Q100 Automotive Qualifi...
Datasheet	AT9933 PDF File

Overview

AT9933 Hysteretic Boost-Buck (Ćuk) LED Driver IC with High-Side Current Sensing Features • AEC-Q100 Automotive Qualified, See Product Identification System • Constant Current LED Driver • Steps Input Voltage Up or Down • Low Electromagnetic Interference (EMI) • Variable Frequency Operation • Internal 75V Linear Regulator • Input and Output Current Sensing • Input Current Limit • Enable and Pulse-width Modulation (PWM) Dimming • Ambient Temperature Rating of up to 125°C Applications • LED Lighting Applications Package Type General Description The AT9933 is a variable frequency PWM controller IC, designed to control an LED lamp driver using a low-noise boost-buck (Ćuk) topology.
It uses pat...

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