This document describes the features of VIPer22ADIP - E and VIPer22AS - E, which are low power offline switch mode power supplies with a fixed 60kHz switching frequency, wide range VDD voltage of 9V to 38V, and current mode control. These products are suitable for applications such as offline power supplies for battery charger adapters, standby power supplies for TV or monitors, and auxiliary supplies for motor control.
The VIPer22ADIP and VIPer22AS‑E are compact, SO‑8/DIP‑8 primary switcher ICs for off‑line power supplies. They operate at a fixed 60 kHz switching frequency and accept a wide Vpp input voltage range of 9 V to 38 V. Integrated features include an auxiliary undervoltage lockout, high‑voltage start‑up current source, and over‑temperature, over‑current and over‑voltage protection with auto‑restart.
Typical applications are battery‑charger adapters, standby supplies for TVs or monitors, and auxiliary supplies for motor control. The devices deliver up to 12 W (European 195‑265 Vac) or 7 W (US 85‑265 Vac) under appropriate thermal conditions, and provide precise current‑mode regulation suitable for Li‑ion battery charging.
| Switching frequency | 60 kHz (fixed) |
|---|---|
| Input voltage range (Vpp) | 9 V – 38 V |
| Continuous drain current | 0.4 A (typical) |
| Thermal resistance (junction‑case) | 25 °C/W (max) |
| European power capability | 12 W / 20 W |
| US power capability | 7 W / 12 W |
The devices operate at a fixed 60 kHz switching frequency.
The Vpp pin accepts a voltage range from 9 V to 38 V.
European versions can deliver 12 W or 20 W (195‑265 Vac), while US versions can deliver 7 W or 12 W (85‑265 Vac).