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HT7939 - High Current and Performance White LED Driver

Holtek Semiconductor

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Datasheet Details

Part number	HT7939
Manufacturer	Holtek Semiconductor
File Size	759.92 KB
Description	High Current and Performance White LED Driver
Datasheet	HT7939_HoltekSemiconductor.pdf

HT7939 Product details

Description

The HT7939 is a high efficiency boost converter for driving White LEDs using current mode operation.

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.
High efficiency - up to 90%.
6-pin SOT23-6 package Over-current protection circuits.

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Published: Feb 7, 2010 |