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STATE OF THE ART PRIMARY SIDE SWITCH FOR AC/DC CONVERTERS

The new VIPer53E includes a PWM driver, an MDmesh MOSFET, a start-up high voltage current source and several on-chip protection circuits. The VIPer53E is an alternative choice to the VIPer53 when only the secondary regulation is required in

a power supply. Like the standard VIPer53, the new version is housed in surface mounting DIP-8 and PowerSO-10 packages.

Features

Automatic burst mode for very low consumption in stand-by conditions (less than 500mW);

Integrated high voltage start-up current source;

Overload and short circuit control;

Over-voltage protection at 18V;

Over-temperature shutdown;

Under-voltage protection;

Current mode control with adjustable drain current limitation;

Externally set switching frequency, up to 300kHz.