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PT4301 - 4 Channel 1x/1.5x Auto-Adjust Charge Pump White LED Driver

Description

The PT4301/03 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver that achieves high efficiency for Li-Ion battery supply.

The LED current can be set by an external resistor.

Features

  • z 1×/1.5× auto-adjust charge pump z LED current set by external resistor z Programmable 4-channel LED current up to 20mA with 8 levels control through en/set pin z Individual LED dimming control through PWM signals at 3 (PT4301) or 2 (PT4303) control inputs z LED fault detection z.

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Datasheet preview – PT4301

Datasheet Details

Part number PT4301
Manufacturer Powtech
File Size 140.51 KB
Description 4 Channel 1x/1.5x Auto-Adjust Charge Pump White LED Driver
Datasheet download datasheet PT4301 Datasheet
Additional preview pages of the PT4301 datasheet.

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Full PDF Text Transcription

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PT4301, PT4303 4 Channel 1×/1.5× Auto-Adjust Charge Pump White LED Driver GENERAL DESCRIPTION The PT4301/03 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver that achieves high efficiency for Li-Ion battery supply. The LED current can be set by an external resistor. Only one small resistor and four 1µF small ceramic capacitors are needed as external components to construct a LED driver, which makes the PT4301/03 an ideal choice for portable applications. The LED fault detection circuit in the PT4301/03 improves the reliability of the system. The PT4301/03 has three dimming modes that allow users to adjust the brightness of the four LEDs individually or all together.
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