VIPER17 is an offline converter with an 800 V rugged power section, a PWM control, two levels of over current protection, over voltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and device very low consumption helps to meet the standby energy saving regulations. Advance frequency jittering reduces EMI filter cost. Brown-out function is embedded into the high voltage start-up.
The VIPER17 is an off‑line high‑voltage converter featuring an 800 V rugged power section, PWM control with frequency jittering, low standby power, and multiple protection functions such as over‑current, over‑voltage, overload, and thermal shutdown. It is intended for adapters, auxiliary power supplies, and SMPS applications in devices like set‑top boxes, DVD players, and industrial equipment.
The document includes a block diagram, typical power ratings, detailed pin descriptions, maximum ratings, thermal data, and electrical characteristics. It also lists package mechanical data, revision history, and regulatory information for designers and engineers.
| Operating frequency (L type) | 60 kHz |
|---|---|
| Operating frequency (H type) | 115 kHz |
| Standby power | < 50 mW at 265 Vac |
| Maximum drain‑to‑source voltage (VDRAIN) | 800 V |
| Supply voltage (VDD) | Self limited |
The device can tolerate up to 800 V drain‑to‑source voltage.
Standby power is less than 50 mW when operating at 265 Vac.
The L‑type operates at 60 kHz and the H‑type at 115 kHz.
If the control pin voltage exceeds 3 V, the IC shuts down to limit consumption.