HT7939

High Current and Performance White LED Driver

Holtek Semiconductor

HT7939 Features

* Input range from 2.6V~5.5V

* Built-in Power MOSFET

* Can drive up to 39 White LEDs with a 5V input

* Low standby current: 0.1mA (typ.) with VEN low

* Integrated Over-voltage, Over-temperature and

* Under voltage lock-out protection

* 1.2MHz fixed switching frequency

HT7939 General Description

The HT7939 is a high efficiency boost converter for driving White LEDs using current mode operation. The device is designed to drive up to 39 White LEDs from a 5V power supply. The White LED current is setup using an external current setting resistor, which has a low feedback voltage of 0.2V to mini.

HT7939 Datasheet (759.92 KB)

HT7939 Datasheet Preview — Preview of HT7939 PDF

Datasheet Details

Part number:

HT7939

Manufacturer:

Holtek Semiconductor

File Size:

759.92 KB

Description:

High current and performance white led driver.

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HT7939 High Current and Performance White LED Driver Holtek Semiconductor

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HT7939 Features

HT7939 General Description

Datasheet Details

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