RT8458A controller equivalent, high efficiency pwm buck led driver controller.
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 av.
* E27, PAR30, Offline LED Lights
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Simplified Applic.
The RT8458A is a PWM controller with an integrated high side 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 RT8458A can be up to 100% for.
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