RT4539 Datasheet | Richtek

36V High Efficiency Boost Converter with I2C Controlled 6-CH LED Driver General Description The RT4539 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 RT4539 has a wide input voltage operating range from 2.7V to 24V and contains I2C interface for...