AT9919 Datasheet - Supertex

High Brightness LED Driver

AT9919 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

AT9919 General 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. The operating frequency range can be set by sel.

AT9919 Datasheet (346.64 KB)

AT9919 Datasheet Preview — Preview of AT9919 PDF

Datasheet Details

Part number:

AT9919

Manufacturer:

Supertex

File Size:

346.64 KB

Description:

High brightness led driver.

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AT9919 High Brightness LED Driver Supertex

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AT9919 Features

AT9919 General Description

Datasheet Details

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