RT8453B High Voltage Buck LED Driver

Richtek

Description

RT8453B 1.5A, 500kHz, 40V High Voltage Buck LED Driver General .
The RT8453B is a buck current mode PWM regulator for LED driving applications.

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Datasheet Specifications

Part number: RT8453B
Manufacturer: Richtek
File Size: 135.91 KB
Datasheet: RT8453B-Richtek.pdf
Description: High Voltage Buck LED Driver

Features

* z Input Operating Range 4.5 to 40V z 1.5A Switching Current Limitation z 10% Constant Current Output Accuracy z Current Mode PWM with 500kHz Switching Frequency z Analog or PWM Control Signal for LED Dimming z Programmable Soft-Start z Input Under Voltage Lockout z Over Temperature Protection z RoHS

Applications

* It provides an integrated 1.5A switch and can be operated with a wide input voltage range from 4.5V to 40V. With a 500kHz operating frequency, the RT8453B allows all external inductor and input/output capacitors to be small. High efficiency is achieved with its 190mV current sensing capability. Dim

RT8453B Distributors

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RT8453B High Voltage Buck LED Driver Richtek

Richtek RT8453B-like datasheet