STEVAL-ISA175V1

STEVAL-ISA175V1 is an evaluation board that implements a three output isolated flyback specifically designed to supply the STCOMET smart meter and powerline communication system. The board is developed using the VIPER26HD offline high-voltage converter by STMicroelectronics. The device features an 800V avalanche-rugged power section, PWM operation at 115kHz with frequency jittering for lower EMI, current limiting with adjustable set point, on-board soft-start, safe auto-restart after a fault condition and low standby power. The board can be used in a stand-alone configuration or with the dedicated STCOMET development kit and the PCB layout is specifically designed to fit inside a real meter.

• Triple output voltage: 15V at 0.55Arms (0.7A peak), 3.3V at 200 mA and 5V at 100mA
• Extended AC mains input voltage range: 90V AC to 440V AC
• Meets STCOMET smart meter and PLC system specs
• EMC with EN55022, EN61000, EN61000-4-4, EN61000-4-5, EN61000-4-6