This document introduces the VIPer22A application for the DVD player power supply, which has the advantages of low cost, wide input voltage range and low power consumption
This document presents an application note for designing a low-cost, universal input power supply for DVD players using the VIPer22A controller. The VIPer22A combines an optimized high-voltage avalanche rugged Vertical Power MOSFET with current mode control PWM circuitry, simplifying AC to DC conversion and reducing component count.
| Maximum Input Current | 1.5A |
|---|---|
| Operating Voltage Range | 8V to 42V |
It combines a high voltage MOSFET with current mode control PWM circuitry, resulting in a simpler, quicker, and less expensive solution with halved component count.
It utilizes burst operation to skip switching cycles when the energy drained by the output load goes below a specific threshold.
A zener clamp is recommended because RCD clamp circuits may allow the drain voltage to exceed the data sheet breakdown rating during overload or high line input voltage.