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GS5903 - Boost for 10 White LED Driver

Description

The GS5903 is designed to drive up to 10 white LEDs in series with a 3.6V cell Li-Ion battery.

It works as a boost converter using current mode, 1.2MHz PWM frequency with the measure of an external current sense resistor to regulate the LED current.

Features

  • many protection schemes such as UVLO, open load protection, 1A current limit and over-temperature protection. GS5903 is packaged with the popular SOT23-5 small package. Features.
  • Wide Input Voltage from 2.75V to 6V.
  • 300mV Feed-Back Voltage.
  • 40V Open Load Protection.
  • DC Voltage/PWM Dimming Control.
  • 1A Maximum Driving Current.
  • Integrated 400mΩ MOSFET Switch.
  • 1.2MHz Switching Frequency.
  • 2.75V UVLO Protection.

📥 Download Datasheet

Datasheet preview – GS5903

Datasheet Details

Part number GS5903
Manufacturer Globaltech
File Size 381.22 KB
Description Boost for 10 White LED Driver
Datasheet download datasheet GS5903 Datasheet
Additional preview pages of the GS5903 datasheet.

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Full PDF Text Transcription

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GS5903 1A, Boost for 10 White LED Driver Product Description The GS5903 is designed to drive up to 10 white LEDs in series with a 3.6V cell Li-Ion battery. It works as a boost converter using current mode, 1.2MHz PWM frequency with the measure of an external current sense resistor to regulate the LED current. In order to minimize the power loss and keep the efficiency, the feedback voltage is designed as low as 300mV. With the DC voltage dimming control, it is easily to adjust the brightness of LEDs in either analog method or PWM duty control. The GS5903 features many protection schemes such as UVLO, open load protection, 1A current limit and over-temperature protection. GS5903 is packaged with the popular SOT23-5 small package. Features „ Wide Input Voltage from 2.
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