VIPER27 is an offline converter from ON Semiconductor. It integrates an 800V avalanche rugged power section, PWM control, two levels of over-current protection, overvoltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. It is suitable for auxiliary power supply for consumer and home equipments, ATX auxiliary power supply, low/medium power AC-DC adapters, set-top boxes, DVD players and recorders, white goods and other applications.
The VIPER27 is an off-line converter designed for auxiliary power supplies, ATX auxiliary power, and low to medium power AC-DC adapters. It features an 800 V avalanche rugged power section, PWM operation with frequency jittering for low EMI, and includes two levels of over-current protection, overvoltage protection, and hysteretic thermal shutdown.
| Drain-to-source voltage | 800 V |
|---|---|
| Operating frequency (L type) | 60 kHz |
| Operating frequency (H type) | 115 kHz |
| Standby power | < 50 mW |
| Package types | DIP-7, SO16 |
| Operating junction temperature | -40 to 150 °C |
The maximum drain-to-source voltage rating is 800 V.
The operating frequency is 60 kHz for L type and 115 kHz for H type.
The standby power consumption is less than 50 mW at 265 Vac.