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RT8458

High Efficiency PWM Buck LED Driver Controller

RT8458 Features

* a 48kHz fixed frequency oscillator, an internal 178mV precision reference, and a PWM comparator with latching logic. The accurate output LED current is achieved by an averaging current feedback loop and the LED current dimming can be easily controlled via the ACTL pin. The RT8458 also has multiple f

RT8458 General Description

The RT8458 is a PWM controller with an integrated high side floating gate driver. It is used for step down converters by well controlling the external MOSFET and regulating a constant output current. The output duty cycle of the RT8458 can be up to 100% for wider input voltage application, such as E.

RT8458 Datasheet (264.51 KB)

Preview of RT8458 PDF

Datasheet Details

Part number:

RT8458

Manufacturer:

Richtek

File Size:

264.51 KB

Description:

High efficiency pwm buck led driver controller.

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RT8458 High Efficiency PWM Buck LED Driver Controller Richtek

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