VIPer53 is the third generation of the Viper series and combines an enhanced current mode PWM controller with a high voltage MDMesh Power Mosfet. It features up to 300 kHz switching frequency, adjustable current limiting, soft start and shut down control, automatic burst mode, high voltage startup current source, over temperature protection, overload and short circuit control.
The ViPer53 series combines a current‑mode PWM controller with a high‑voltage Power MOSFET in a DIP‑8 or PowerSO‑10™ package. It offers features such as soft‑start, automatic burst mode, over‑temperature protection, and overload control, making it suitable for offline power supplies up to 30 W (DIP‑8) or 65 W (PowerSO‑10™).\n\nThe document provides pin descriptions, absolute maximum ratings, thermal data, and detailed electrical characteristics for both the ViPer53DIP and VIPer53SP variants, including switching frequency, voltage limits, and current specifications.
| Switching frequency | up to 300 kHz |
|---|---|
| Thermal resistance (RθJC) DIP‑8 | 20 °C/W |
The ViPer53 series can operate at switching frequencies up to 300 kHz.
The thermal resistance (RθJC) for the DIP‑8 package is 20 °C/W.