VIPER50A [STMicroelectronics]

VIPer50/50A is a SMPS primary IC using VItPower M0 technology, combining a state-of-the-art PWM circuit with an optimized high-voltage avalanche rugged Vertical Power MOSFET (620V or 700V / 1.5A). It features adjustable switching frequency up to 200 kHz, current mode control, soft start and shut down control, automatic burst mode operation in stand-by condition, internally trimmed zener reference, undervoltage lock-out with hysteresis, integrated start-up supply, avalanche rugged, overtemperature protection, low stand-by current, and adjustable current limitation. Typical applications cover off-line power supplies with secondary power capability of 25W in wide range conditions and 50W in single range or with doubler configuration.