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HT7937 - Built-in OVP White LED Step-up Converter

Product Overview

Holtek Semiconductor

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HT7937 Built-in OVP White LED Step-up Converter by Holtek Semiconductor - Datasheet Preview — Datasheet preview – HT7937

Datasheet Details

Part number	HT7937
Manufacturer	Holtek Semiconductor
File Size	872.46 KB
Description	Built-in OVP White LED Step-up Converter
Datasheet	HT7937 Datasheet
Additional preview pages of the HT7937 datasheet.

Product details

Description

The HT7937 is high efficiency boost converter with a constant current output to provide back light functions in handheld devices.

Applications with series connected LEDs ensure constant and identical LED currents resulting in uniform brightness.

Features

Integrated open-circuit protection.
Over voltage protection.
Up to 84% efficiency at VIN=3V, 3LEDs,.
Low standby current: 0.1mA (typ. ) (VSHDN=0V).
Matches LED current.
Small value inductor and capacitors.
Small outline SOT23-6 package ILED= 20mA.
1.2MHz fixed switching frequency.

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Other Datasheets by Holtek Semiconductor

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Published: Feb 7, 2010 |