VIPer22ADIP/VIPer22AS is a low power off line SMPS primary switch from STMicroelectronics. The chip has a fixed 60kHz switching frequency, supports 9V to 38V wide range VDD voltage, current mode control, auxiliary undervoltage lockout with hysteresis, high voltage start up current source, overtemperature, overcurrent and overvoltage protection with autorestart. Typical applications include battery charger adapter off line power supplies, TV or monitor standby power supplies, motor control auxiliary supplies, etc.
The VIPer22ADIP and VIPer22AS are low‑power offline SMPS primary switchers offering a wide input voltage range and integrated protection features such as over‑voltage, over‑temperature, over‑current and undervoltage lockout. They are supplied in SO‑8 and DIP‑8 packages with a fixed 60 kHz switching frequency.
The document provides detailed pin functions, absolute maximum ratings, thermal data, electrical characteristics, and typical application notes for battery‑charging and auxiliary power‑supply designs. It includes block diagrams, characteristic curves, and mechanical dimensions for both package types.
| Continuous Drain Current (Ip) | Internally limited |
|---|---|
| Supply Voltage (Vop) | 0 … 50 V |
| Feedback Current (lea) | 3 mA |
| Thermal Resistance Junction‑Case (Rthj‑case) SO‑8 | 25 °C/W |
The Vpp pin voltage range extends from 9 V to 38 V.
The devices operate at a fixed 60 kHz switching frequency.
The case operating temperature range is –40 °C to 150 °C.