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PT4303 - 1x/1.5x Auto-Adjust Charge Pump 4-Channel White LED Driver

Datasheet Summary

Description

The PT4303 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver with three dimming modes.

Auto-adjust charge pump achieves high efficiency for Li-Ion battery supply.

The three LED dimming modes enable users to dim the four LEDs all together or individually.

Features

  • 3V-5.5V input voltage.
  • 1x/1.5x auto-adjust charge pump.
  • Set LED current by external resistor.
  • Dimming LED by PWM signal through 2 control terminal.
  • LED fault detection.

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Datasheet preview – PT4303

Datasheet Details

Part number PT4303
Manufacturer ETC
File Size 37.14 KB
Description 1x/1.5x Auto-Adjust Charge Pump 4-Channel White LED Driver
Datasheet download datasheet PT4303 Datasheet
Additional preview pages of the PT4303 datasheet.

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Full PDF Text Transcription

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LED Driver PT4303 1x/1.5x Auto-Adjust Charge Pump 4-Channel White LED Driver with Two Dimming Modes GENERAL DESCRIPTION The PT4303 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver with three dimming modes. Auto-adjust charge pump achieves high efficiency for Li-Ion battery supply. The three LED dimming modes enable users to dim the four LEDs all together or individually. Only a few external components (two flying capacitors and two filter capacitors at VIN and VOUT) are needed, which makes the PT4303 ideally suited for mobile applications. The current through the LED can be set by an external resistor.
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