RT8458 controller equivalent, high efficiency pwm buck led driver controller.
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 ave.
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E27, PAR30, Offline LED Lights
Pin Configurations
(TOP VIEW)
SENSE VC ACTL
6 5 2 4 3
VCC GND GATE
Ordering Informa.
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 1.
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