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HT7939A Datasheet

High Current And Performance White Led Driver

Manufacturer: Holtek Semiconductor

HT7939A Overview

The HT7939A is a high efficiency boost converter for driving multiple 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 minimise resistor power losses and thus improving efficiency.

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