VIPer20A-E is a high voltage low power switch power supply chip launched by ST. This chip uses VIPower M0 technology, integrates high-performance PWM circuit and high voltage vertical MOSFET, and is suitable for 10W wide range or 20W single range offline power supply applications.
The ViPer20A-E is a high‑voltage SMPS primary integrated circuit featuring a 700 V, 0.5 A rating, adjustable switching frequency up to 200 kHz, current‑mode control, soft‑start, and automatic burst‑mode standby operation. It integrates a vertical power MOSFET, undervoltage lock‑out, over‑temperature protection, and a programmable error‑amplifier.
The document details absolute maximum ratings, typical electrical characteristics, thermal data, pin functions, and recommended layout considerations. Key parameters such as drain‑source voltage, supply voltage, power dissipation, and thermal resistances are listed for designers to size components and ensure reliable operation.
| Drain‑Source Voltage (VDS) | 0.3 V to 700 V |
|---|---|
| Maximum Current (Ip) | 0.5 A |
| Supply Voltage (Vop) | 0 V to 15 V |
| Power Dissipation (Prot) | 57 W |
| Switching Frequency | up to 200 kHz |
| Thermal Resistance Junction‑Case | 2.0 °C/W |
| Storage Temperature Range | -65 °C to 150 °C |
| Over‑temperature Protection | Enabled |
| Burst‑mode Stand‑by Operation | Automatic |
The device can handle a continuous drain‑source voltage from 0.3 V up to 700 V.
The switching frequency is adjustable up to 200 kHz.