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ML4819 Datasheet - Fairchild

ML4819_FairchildSemiconductor.pdf

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Datasheet Details

Part number:

ML4819

Manufacturer:

Fairchild

File Size:

269.25 KB

Description:

Power factor and pwm controller combo.

ML4819, Power Factor and PWM Controller Combo

The ML4819 is a complete boost mode Power factor Controller (PFC) which also contains a PWM controller.

The PFC circuit is similar to the ML4812 while the PWM controller can be used for current or voltage mode control for a second stage converter.

Since the PWM and PFC circuits share the same oscill

ML4819 Features

* s s s s s s s Large oscillator amplitude for better noise immunity Precision duty cycle limit for PWM section Current input gain modulator improves noise immunity Programmable Ramp Compensation circuit Over-Voltage comparator helps prevent output “runaway” BLOCK DIAGRAM 10 20 CT RAMP COMP SLOPE

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