Overview
The VIPER06LN, 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. This device can power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. It also includes advanced frequency jittering to reduce EMI filter costs and operates in burst mode to meet energy-saving regulations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-source voltage (VDRAIN) | 800 | V |
| Operating frequency | 60 kHz (for VIPER06Lx) | kHz |
| Drain current (IDRAIN) | 0.35 | A |
| Drain-source on-state resistance (RDS(on)) | 32 | Ω |
| Operating junction temperature range | -40 to 150 | °C |
| Standby power at 265 VAC | < 30 mW | mW |
| 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 VIPER06LN?
The maximum drain-to-source voltage is 800 V.
- What are the operating frequencies for the VIPER06Lx series?
The operating frequency for the VIPER06Lx series is 60 kHz.
- What is the typical drain current of the VIPER06LN?
The typical drain current is 0.35 A.
- What is the maximum drain-source on-state resistance?
The maximum drain-source on-state resistance is 32 Ω.
- What is the operating junction temperature range of the VIPER06LN?
The operating junction temperature range is -40 to 150 °C.
- Does the VIPER06LN require an auxiliary winding for low-power applications?
No, it does not require an auxiliary winding for low-power applications.
- What is the standby power consumption at 265 VAC?
The standby power consumption is less than 30 mW at 265 VAC.
- What protection mechanisms are included in the VIPER06LN?
The device includes user-defined overcurrent limit, open-loop failure protection, hysteretic thermal protection, and safe auto-restart after a fault condition.
- What are some common applications of the VIPER06LN?
Common applications include replacement of capacitive power supplies, home appliances, power metering, and LED drivers.
- How does the VIPER06LN reduce EMI?
The device reduces EMI through PWM operation with frequency jittering.
