HT7939 Datasheet - Holtek Semiconductor

HT7939 High Current and Performance White LED Driver

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 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 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.

📁 Related Datasheet

HT7936A White LED Step-up Charge Pump Converter (Holtek Semiconductor)

HT7936B White LED Step-up Charge Pump Converter (Holtek Semiconductor)

HT7937 Built-in OVP White LED Step-up Converter (Holtek Semiconductor)

HT7938 High Current And Performance White LED Driver (Holtek Semiconductor)

HT7938A High Current and Performance White LED Driver (Holtek Semiconductor)

HT7939A High Current and Performance White LED Driver (Holtek Semiconductor)

HT7963 LED Backlight Driver (Holtek Semiconductor)

HT7991 1MHz Asynchronous Step-up PWM Converter (Holtek Semiconductor)

TAGS

HT7939 High Current and Performance White LED Driver Holtek Semiconductor

HT7939 Distributor