Overview
The VIPER122LSTR, produced by STMicroelectronics, is a high-performance high voltage converter. This device integrates a 730 V rugged power MOSFET with PWM (Pulse Width Modulation) control, making it suitable for a variety of high-voltage applications. The VIPER122LSTR embeds high voltage startup and current sense circuitry, which reduces the number of components in the Bill of Materials (BoM) and simplifies the design process. Additionally, it features frequency jittering to spread EMI (Electromagnetic Interference) and a burst mode for very low input power consumption at light loads.
Key Specifications
| Parameter | Value |
|---|---|
| Transistor Breakdown Voltage (V) | 730 |
| Drain Current (A) | 0.4 (nominal) |
| RDS(on) (Ω) | 24 (maximum) |
| No Load Input Power at 230 V AC | 40 mW |
| Package | SSOP 10 |
| Operating Temperature (°C) | -40 to 150 |
| Moisture Sensitive | Yes |
| Number of Outputs | 1 Output |
Key Features
- 730 V avalanche rugged power MOSFET
- PWM controller
- 3.3 V reference voltage
- Frequency jittering to reduce EMI
- Burst mode for low input power consumption at light loads
- Short-circuit protection
- Thermal shutdown
- High voltage startup and current sense circuitry
Applications
The VIPER122LSTR is suitable for various industrial and high-voltage applications, including but not limited to:
- Industrial power supplies
- High-efficiency compressor solutions
- Isolated flyback converters
- Buck converters
- LED lighting systems
Q & A
- What is the maximum breakdown voltage of the VIPER122LSTR?
The maximum breakdown voltage is 730 V.
- What type of package does the VIPER122LSTR come in?
The VIPER122LSTR comes in an SSOP 10 package.
- What is the nominal drain current of the VIPER122LSTR?
The nominal drain current is 0.4 A.
- Does the VIPER122LSTR have built-in short-circuit protection?
Yes, the VIPER122LSTR has built-in short-circuit protection.
- What is the purpose of frequency jittering in the VIPER122LSTR?
Frequency jittering helps to spread EMI and allows the use of smaller filters.
- What is the no-load input power consumption at 230 V AC?
The no-load input power consumption is 40 mW at 230 V AC.
- Is the VIPER122LSTR moisture sensitive?
Yes, the VIPER122LSTR is moisture sensitive.
- What is the operating temperature range of the VIPER122LSTR?
The operating temperature range is -40 to 150°C..
- Does the VIPER122LSTR have thermal shutdown protection?
Yes, the VIPER122LSTR has thermal shutdown protection..
- What are some common applications of the VIPER122LSTR?
Common applications include industrial power supplies, high-efficiency compressor solutions, isolated flyback converters, buck converters, and LED lighting systems...
