Overview
The VIPER222LSTR device, produced by STMicroelectronics, is a high-performance high voltage converter that integrates a 730 V rugged power MOSFET with a PWM controller. This device is designed to optimize performance in flyback and buck topologies, offering features such as high voltage startup, current sense circuit, and frequency jittering to reduce EMI. The VIPER222LSTR also employs burst mode technique to achieve very low input power consumption at light loads and excellent efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-source (ground) voltage (VDS) | 730 | V |
| Pulse drain current (ID) | 2 | A |
| Supply voltage (VCC) | 4.5 - 30 | V |
| Switching frequency (FOSC) | 54 - 66 kHz | kHz |
| Drain-Source ON state resistance (RDS(on)) | 15 | Ω |
| No load input power at 230 VAC | 40 mW | mW |
| Junction temperature range (TJ) | -40 to 150 | °C |
| Package | SSOP 10 | |
| RoHS Compliance Grade | Ecopack2 |
Key Features
- 730 V avalanche rugged power MOSFET
- PWM controller with frequency jittering to reduce EMI
- 1.2 V reference voltage
- High voltage startup and current sense circuit integrated, reducing BoM
- Burst mode technique for low input power consumption at light loads
- Short-circuit protection and thermal shutdown
- Low IC consumption and high efficiency at light loads
Applications
The VIPER222LSTR is suitable for various applications including:
- Auxiliary SMPS for home appliances
- Consumer electronics
- Industrial power supplies
- Lighting systems
Q & A
- What is the maximum drain-to-source voltage of the VIPER222LSTR?
The maximum drain-to-source voltage (VDS) is 730 V.
- What is the switching frequency range of the VIPER222LSTR?
The switching frequency range is 54 to 66 kHz.
- What is the no-load input power consumption at 230 VAC?
The no-load input power consumption is 40 mW.
- Does the VIPER222LSTR have built-in protection features?
Yes, it includes short-circuit protection and thermal shutdown.
- What is the package type of the VIPER222LSTR?
The package type is SSOP 10.
- Is the VIPER222LSTR RoHS compliant?
Yes, it is RoHS compliant with an Ecopack2 grade.
- What is the junction temperature range of the VIPER222LSTR?
The junction temperature range is -40 to 150 °C.
- How does the burst mode technique benefit the VIPER222LSTR?
The burst mode technique allows for very low input power consumption at light loads and helps in maintaining efficiency.
- What are some typical applications of the VIPER222LSTR?
Typical applications include auxiliary SMPS for home appliances, consumer electronics, industrial power supplies, and lighting systems.
- Does the VIPER222LSTR have frequency jittering to reduce EMI?
Yes, it features frequency jittering to spread EMI and allow the use of a small filter.
