RT8458A - High Efficiency PWM Buck LED Driver Controller

Richtek

Datasheet Details

Part number	RT8458A
Manufacturer	Richtek
File Size	256.03 KB
Description	High Efficiency PWM Buck LED Driver Controller
Datasheet	RT8458A-Richtek.pdf

The RT8458A is a PWM controller with an integrated high side gate driver.

a 47kHz fixed frequency oscillator, an internal.
220mV 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 RT8458A also has multiple features to protect the controller from fault conditions, including Under Voltage Lockout (UVLO), Over Current Protection (OCP) and Over Voltage Protection (OVP). Additionally, to ensure the.

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Published: Mar 19, 2020 |