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Evaluation board to demonstrate high-efficiency DC-DC conversion with 60W output (12V/5A), 42VDC to 56VDC input (48V nominal)

STEVAL-ISA203V1

Overview

STEVAL-ISA203V1 evaluation board is designed to demonstrate high efficiency DC-DC conversion with 60 W output (12 V/5 A) from 42 to 56 V_DC input (48 V nom.), which is especially suitable for telecom applications.

The power conversion stage is based on a flyback topology managed by the PM8804 controller, which features 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 1 Mhz, 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.
The secondary side employs the SRK1000 adaptive synchronous rectification controller for flyback converters.

Main features

DC-DC flyback converter based on:
- PM8804 PWM peak current mode controller, and
- SRK1000 adaptive synchronous rectification controller
Input voltage range 42 – 56 V_DC
Switching frequency: 200 kHz
Output:
- Power: 60 W
- Voltage: 12 V_DC
- Current: 5 A
Peak efficiency > 92%
RoHS compliant

Design Files

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