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RT4539A - 39V High Efficiency Boost Converter

Features

  • The RT4539A is a high efficiency driver for white LEDs. It is suitable for single/two cell battery input to drive LED light bars which contains six strings in parallel. The internal current sinks support a maximum of ±2% current mismatching for excellent brightness uniformity in each string of LEDs. To provide enough headroom for current sink operation, the Boost converter monitors the minimum voltage of the feedback pins and regulates an optimized output voltage for power efficiency. The RT453.

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Datasheet Details

Part number RT4539A
Manufacturer Richtek
File Size 1.09 MB
Description 39V High Efficiency Boost Converter
Datasheet download datasheet RT4539A Datasheet
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Full PDF Text Transcription

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RT4539A 39V High Efficiency Boost Converter with I2C Controlled 6-CH LED Driver General Description Features The RT4539A is a high efficiency driver for white LEDs. It is suitable for single/two cell battery input to drive LED light bars which contains six strings in parallel. The internal current sinks support a maximum of ±2% current mismatching for excellent brightness uniformity in each string of LEDs. To provide enough headroom for current sink operation, the Boost converter monitors the minimum voltage of the feedback pins and regulates an optimized output voltage for power efficiency. The RT4539A has a wide input voltage operating range from 2.7V to 24V and contains I2C interface for controlling the dimming mode, operating frequency and the LED current.
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