Datasheet4U Logo Datasheet4U.com

AT9933 Datasheet Hysteretic Boost-buck Led Driver

Manufacturer: Microchip Technology

Overview: AT9933 Hysteretic Boost-Buck (Ćuk) LED Driver IC with High-Side Current.

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 patent-pending Hysteretic Current-mode control to regulate both the input and the output currents.

This enables superior input surge immunity without the necessity for complex loop compensation.

Key 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.

AT9933 Distributor

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Supertex Logo AT9933 Hysteretic Boost-Buck (cuk) LED Driver Supertex

More Datasheets from Microchip Technology

Part Number Description
AT9932 Automotive Boost-Buck LED Lamp Driver
AT9917 Automotive LED Driver
AT9919 Hysteretic Buck High-Brightness LED Driver
AT93C46D Three-Wire Serial EEPROM
AT93C46E Three-Wire Serial EEPROM
AT93C56B Three-wire Serial EEPROM
AT93C66B Three-wire Serial EEPROM
AT93C86A Three-Wire Serial EEPROM