Evaluation board includes a VIPer25HD off-line high-voltage converter IC

Mouser Electronics is now stocking the STEVAL-ISA162V1 Evaluation Board from STMicroelectronics. The new evaluation board implements an isolated flyback (12V/0.84A) 10W wide-range mains developed for general-purpose applications. The core of the application is the VIPer25HD, an off-line, high-voltage converter from the ST's VIPerPlus family. The evaluation board includes an onboard VIPer25HD IC with a custom-designed, 800V rugged power MOSFET, current-mode PWM logic, and a zero current detection (ZCD) block for quasi-resonant operation. The power MOSFET also integrates a high-voltage startup generator, allowing the IC to connect directly with input mains without requiring a resistor to reduce the voltage. The VIPer25HD IC operates in quasi-resonant mode with valley switching, enabling low electromagnetic interference (EMI) emission and safe behaviour in case of short circuit. The IC features high-level protection including dual-level over-current protection, over-voltage and over-load protections, hysteretic thermal protection, soft-start, and safe auto-restart after any fault-condition removal. The STEVAL-ISA162V1 evaluation board can help reduce BOM costs and time-to-market when creating solutions such as power adapters for mobile devices, industrial power, and switched-mode power supplies (SMPS) for household appliances, says the company.