Overview
The VIPER06HS, 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 a range of protective and efficiency-enhancing mechanisms. 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. It includes user-defined overcurrent limits, open-loop failure protection, hysteretic thermal protection, soft startup, and safe auto-restart after any fault condition.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-source voltage (VDRAIN) | 800 | V |
| Operating frequency | 30 kHz (VIPER06Xx), 60 kHz (VIPER06Lx), 115 kHz (VIPER06Hx) | kHz |
| Drain current (IDRAIN) | 0.35 | A |
| Drain-source on-state resistance (RDS(on)) | 32 | Ω |
| Operating temperature range | -40 to 150 | °C |
| Standby power at 265 VAC | < 30 mW | mW |
| Maximum duty cycle | 70 to 80% | % |
| Thermal shutdown temperature | 150 to 160 | °C |
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 VIPER06HS?
The maximum drain-to-source voltage is 800 V. - What are the operating frequencies for different models of the VIPER06 series?
The operating frequencies are 30 kHz for VIPER06Xx, 60 kHz for VIPER06Lx, and 115 kHz for VIPER06Hx. - Does the VIPER06HS require an auxiliary bias winding?
No, the VIPER06HS can power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. - What is the standby power consumption of the VIPER06HS at 265 VAC?
The standby power consumption is less than 30 mW at 265 VAC. - What protective features does the VIPER06HS include?
The device includes user-defined overcurrent limits, open-loop failure protection, hysteretic thermal protection, and safe auto-restart after any fault condition. - What is the typical drain current of the VIPER06HS?
The typical drain current is 0.35 A. - What is the maximum duty cycle of the VIPER06HS?
The maximum duty cycle is between 70% and 80%. - What is the thermal shutdown temperature range of the VIPER06HS?
The thermal shutdown temperature range is between 150°C and 160°C. - What are some common applications of the VIPER06HS?
Common applications include replacement of capacitive power supplies, home appliances, power metering, and LED drivers. - How does the VIPER06HS reduce EMI?
The device reduces EMI through advanced frequency jittering.
