RT8458 Datasheet - Richtek

RT8458, High Efficiency PWM Buck LED Driver Controller

Preliminary RT8458 High Efficiency PWM Buck LED Driver Controller General .
The RT8458 is a PWM controller with an integrated high side floating gate driver.

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

Applications

* z E27, PAR30, Offline LED Lights Pin Configurations (TOP VIEW) SENSE VC ACTL 6 5 2 4 3 VCC GND GATE Ordering Information RT8458 Package Type J6 : TSOT-23-6 Operating Temperature Range G : Green (Halogen Free with Commercial Standard) Note : Richtek Green products are : ` TSOT-23-6 Marking Info

RT8458-Richtek.pdf