RT8458D - Constant Current PWM Buck Controller

Richtek

Datasheet Details

Part number	RT8458D
Manufacturer	Richtek
File Size	203.50 KB
Description	Constant Current PWM Buck Controller
Datasheet	RT8458D-Richtek.pdf

The RT8458D is a PWM controller with an internal high side gate driver.

a 160kHz 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 RT8458D 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 |