VIPer22ADIP and VIPer22AS are low power offline SMPS primary switchers with a fixed 60kHz switching frequency, a wide range of 9V to 38V VDD voltage, current mode control, auxiliary undervoltage lockout with hysteresis, high voltage start up current source, and overtemperature, overcurrent, and overvoltage protection.
The VIPer22ADIP and VIPer22AS are low‑power offline SMPS primary switcher ICs designed for applications such as battery‑charger adapters, standby power supplies, and auxiliary supplies for motor control. They integrate a current‑mode controller, MOSFET, and protection features on a single silicon chip.
Key features include a wide input voltage range (9 V – 38 V on the Vpp pin), fixed 60 kHz switching frequency, over‑voltage, over‑temperature, and over‑current protection, as well as automatic restart and burst mode operation. The datasheet details pin assignments, absolute maximum ratings, thermal data, and detailed electrical characteristics for both the DIP‑8 and SO‑8 packages.
| Thermal Resistance Junction‑Case (SO‑8) | 25 °C/W |
|---|---|
| Thermal Shutdown Temperature | 140 °C (typical) |
Thermal shutdown typically triggers at 140 °C.