Datasheet4U.com

HT7939

The HT7939 is High Current and Performance White LED Driver designed by Holtek Semiconductor.

Product Overview

Holtek Semiconductor

📥 Download Datasheet

HT7939 High Current and Performance White LED Driver by Holtek Semiconductor - Datasheet Preview — Datasheet preview – HT7939

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
Additional preview pages of the HT7939 datasheet.

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.

📁 Similar Datasheet

HT7005L - LCD (HYES Optoelectronics)
HT7017 - High-precision single-phase metering chip (HiTrendtech)
HT7020 - three-port low voltage detector (UMW)
HT7022 - three-port low voltage detector (UMW)
HT7024 - three-port low voltage detector (UMW)
HT7024A - Voltage Detector (Holtek Semiconductor Inc)
HT7024A-1 - (HT70xxA-1) Voltage Detector (Holtek Microelectronics)
HT7027 - three-port low voltage detector (UMW)

Other Datasheets by Holtek Semiconductor

HT7939A - High Current and Performance White LED Driver
HT7936A - White LED Step-up Charge Pump Converter
HT7936B - White LED Step-up Charge Pump Converter
HT7937 - Built-in OVP White LED Step-up Converter
HT7938 - High Current And Performance White LED Driver
HT7938A - High Current and Performance White LED Driver

Published: Feb 7, 2010 |