Overview
The VIPER06XS, produced by STMicroelectronics, is an offline converter designed for high-voltage applications. It features an 800 V avalanche rugged power section, a PWM controller, and various protection mechanisms such as user-defined overcurrent limit, open-loop failure protection, and hysteretic thermal protection. The device can power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. Advanced frequency jittering reduces EMI filter costs, and the device operates in burst mode to meet energy-saving regulations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-source voltage (VDRAIN) | 800 | V |
| Repetitive avalanche energy (EAV) | 2 | mJ |
| Repetitive avalanche current (IAR) | 1 | A |
| Pulse drain current (IDRAIN) | 2.5 | A |
| Operating junction temperature range (TJ) | -40 to 150 | °C |
| Thermal shutdown temperature (TSD) | 150 to 160 | °C |
| Thermal shutdown hysteresis (THYST) | 30 | °C |
| Drain-source on-state resistance (RDS(on)) | 32 (at TJ = 25 °C), 67 (at TJ = 125 °C) | Ω |
| Switching frequency | 27-33 kHz (VIPER06Xx), 54-66 kHz (VIPER06Lx), 103-127 kHz (VIPER06Hx) | kHz |
| Standby power | < 30 mW at 265 VAC | mW |
Key Features
- 800 V avalanche rugged power section
- PWM operation with frequency jittering for low EMI
- No need for an auxiliary winding in low-power applications
- Standby power < 30 mW at 265 VAC
- Limiting current with adjustable set point
- On-board soft-start
- Safe auto-restart after a fault condition
- Hysteretic thermal shutdown
Applications
- Replacement of capacitive power supplies
- Home appliances
- Power metering
- LED drivers
Q & A
- What is the maximum drain-to-source voltage of the VIPER06XS?
The maximum drain-to-source voltage is 800 V. - What are the operating frequency ranges for the VIPER06 series?
The operating frequencies are 27-33 kHz for VIPER06Xx, 54-66 kHz for VIPER06Lx, and 103-127 kHz for VIPER06Hx. - Does the VIPER06XS require an auxiliary bias winding?
No, it can power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. - What is the standby power consumption of the VIPER06XS at 265 VAC?
The standby power consumption is less than 30 mW at 265 VAC. - What protection mechanisms are included in the VIPER06XS?
The device includes user-defined overcurrent limit, open-loop failure protection, hysteretic thermal protection, and safe auto-restart after any fault condition. - How does the VIPER06XS reduce EMI?
The device uses advanced frequency jittering to reduce EMI filter costs. - What is the typical soft-start time for the VIPER06XS?
The soft-start time is internally fixed at approximately 8.5 ms. - What is the thermal shutdown temperature range for the VIPER06XS?
The thermal shutdown temperature range is 150 to 160 °C. - Can the VIPER06XS be used in home appliances?
- What is the typical drain-source on-state resistance of the VIPER06XS?
The typical drain-source on-state resistance is 32 Ω at TJ = 25 °C and 67 Ω at TJ = 125 °C. - What is the typical drain-source on-state resistance of the VIPER06XS?
