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PM8804

Description

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Description

The PM8804 is a PWM controller that integrates all the circuitry required to design a smart

and efficient 48 V converter for PoE and telecom mid-power applications.

It features a programmable oscillator for the switching frequency, adjustable slope

compensation, dual complementary low-side drivers with programmable dead time,

programmable soft-start, soft turn off and a programmable current sense blanking time.

An internal high-voltage linear regulator with a typical 20 mA output current allows the

device to start up with a minimum of external components.

Complementary 1 A peak gate drivers make possible to implement high power topologies,

while when the second drives is not used, like with simple low power flyback converters, it

can be turned off.

The device embeds a set of protections that enables the design of a self-protected converter

with the scope to eliminate the risk of catastrophic failure at system level.

The device targets high efficiency conversion at wide range of load.