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RT8477A High Voltage High Multiple-Topology Current LED Driver

RT8477A Description

® RT8477A High Voltage High Current LED Driver General .
The RT8477A is a current mode PWM controller designed to drive an external MOSFET for high current LED applications with wide input voltage (4.

RT8477A Features

* Buck Constant Current Converter
* High Voltage : VIN up to 50V, VOUT up to 50V
* 380kHz Fixed Switching Frequency
* Analog or PWM Control Signal for LED Dimming
* Internal Soft-Start to Avoid Inrush Current
* Under-Voltage Lockout

RT8477A Applications

* with wide input voltage (4.5V to 50V) and output voltage (up to 50V) ranges. With internal 380kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized. High efficiency is achieved by a 100mV current sensing control. LED Dimming control can be done b

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Datasheet Details

Part number
RT8477A
Manufacturer
Richtek
File Size
196.71 KB
Datasheet
RT8477A-Richtek.pdf
Description
High Voltage High Multiple-Topology Current LED Driver

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High Voltage High Multiple-Topology Current LED Driver Richtek
Richtek RT8477A-like datasheet