VIPER53 Off-Line Primary Switch IC

Nowadays, Power devices defined as innovative technology enabling future development of power converters and systems. These Power Device IC capable of precisely controlling electrical energy from the source to the load according to the load demand, at high efficiency, and with outstanding reliability. A power device IC designed as a semiconductor device acts as a switch in power electronics (ex: switch-mode power supply). Such a type of device known as the power device.  Or when used in an integrated circuit, referred to as the power IC.

The VIPER53 designed as a low power offline switched-mode power supply primary switcher. It combines a dedicated current mode PWM controller with a high voltage MDMesh power MOSFET on the same silicon chip. The internal control circuit of switcher IC offers certain advantages such as a large input voltage range on VDD pin. And also accommodates changes in auxiliary supply voltage. This feature is well adapted to battery charger adapter configurations, automatic burst mode in low load condition, and overvoltage protection in HICCUP mode.

Typical This  off-line power supply offers a wide range of applications with a secondary power capability ranging up to 30W in wide range input voltage, or 50W in single European voltage range and DIP-8 package. These primary switcher IC widely used in battery charger adapters, standby power supplies for TV or monitors, auxiliary supplies for motor control, etc. Moreover, it features Overload and short circuit controlled by feedback monitoring. And delayed device reset, and also the Efficient standby mode by enhanced pulse skipping. Primary regulation or secondary loop failure protection through high gain error amplifier. The VDD pin provides power supply of the control circuits. Also provides a charging current during start up that performed by the high voltage current source connected to the drain.