FEATURES

Internally synchronized PFC and PWM in one IC

Low total harmonic distortion

Reduces ripple current in the storage capacitor between

the PFC and PWM sections

Average current, continuous boost leading edge PFC

Fast transconductance error amp for voltage loop

High efficiency trailing edge PWM can be configured

for current mode or voltage mode operation

Average line voltage compensation with brownout

control

PFC overvoltage comparator eliminates output

“runaway” due to load removal

Current fed gain modulator for improved noise immunity

Overvoltage protection, UVLO, and soft start

 

 

 

 

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