AT9919 - High Brightness LED Driver

Product Overview

Supertex

Datasheet Details

Part number	AT9919
Manufacturer	Supertex
File Size	346.64 KB
Description	High Brightness LED Driver
Datasheet	AT9919 Datasheet
Additional preview pages of the AT9919 datasheet.

AT9919 Product details

Description

The 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 to 40VDC and employs hysteretic control with a high-side current sense resistor to set the constant output current.

Features

Hysteretic control with high-side current sensing.
Wide input voltage range: 4.5 to 40V.
>90% Efficiency.
Typical ±5% LED current accuracy.
Up to 2.0MHz switching frequency.
Adjustable constant LED current.
Analog or PWM control signal for PWM dimming.
Over-temperature protection.
-40ºC to +125ºC operating temperature range.
AEC-Q100 compliant.

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Published: Sep 26, 2016 |