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AT9919 Datasheet - Microchip

Hysteretic Buck High-Brightness LED Driver

AT9919 Features

* AEC-Q100 Qualified

* Hysteretic Control with High-side Current Sensing

* Wide Input Voltage Range: 4.5V to 40V

* >90% Efficiency

* Typical ±5% LED Current Accuracy

* Up to 2 MHz Switching Frequency

* Adjustable Constant LED Current

AT9919 General Description

AT9919 is a PWM controller IC designed to drive high-brightness LEDs using a buck topology. It operates from an input voltage of 4.5 VDC to 40 VDC and employs hysteretic control with a high-side current sense resistor to set the constant output current. The operating frequency range can be set by se.

AT9919 Datasheet (532.81 KB)

Preview of AT9919 PDF

Datasheet Details

Part number:

AT9919

Manufacturer:

Microchip ↗

File Size:

532.81 KB

Description:

Hysteretic buck high-brightness led driver.

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AT9919 Hysteretic Buck High-Brightness LED Driver Microchip

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