STEVAL-ISA204V1

100W, 5V/20A active clamp forward converter evaluation board based on PM8804 for telecom systems. This evaluation board is designed to demonstrate high efficiency DC-DC conversion, able to output 100W (5V/20A) from 42 to 56VDC input, which is especially suitable for telecom applications. The power conversion stage is based on an active clamp forward topology managed by a PM8804 PWM controller featuring all the integrated circuitry necessary for a compact and efficient 48 V converter. The highly configurable controller includes a programmable oscillator for switching frequency regulation up to 1MHz, 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.

• Switching frequency of 250KHz
• Peak efficiency of <gt/> 94%
• Open circuit protection