Overview
The VIPER50A(022Y) is a high-performance AC/DC converter controller manufactured by STMicroelectronics. This integrated circuit combines a state-of-the-art PWM (Pulse Width Modulation) circuit with an optimized, high-voltage Vertical Power MOSFET on the same silicon chip. The VIPER50A-E/ASP-E series is designed to meet the demands of offline power supplies, offering a robust and efficient solution for various power conversion applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | Pentawatt-5 HV (Bent and Staggered Leads) |
| Voltage - Breakdown | 700V |
| Current Rating | 1.5A |
| Topology | Flyback |
| Voltage - Start Up | 11V |
| Voltage - Supply (Vcc/Vdd) | 8 V ~ 15 V |
| Frequency - Switching | Up to 200kHz |
| Power Rating | 50W |
| Fault Protection | Current Limiting, Over Temperature |
| Control Features | Frequency Control, Soft Start, Sync |
| Operating Temperature | - (Specific range not specified) |
| Mounting Type | Surface Mount |
Key Features
- Current Mode PWM Controller with integrated high-voltage Vertical Power MOSFET (700V, 1.5A)
- Adjustable switching frequency up to 200 kHz
- Soft start and shutdown control
- Automatic burst mode operation in stand-by condition
- Under-voltage lock-out with hysteresis
- Over-temperature protection
- Integrated start-up supply and low stand-by current
- Adjustable current limitation
- Compatible with both primary and secondary regulation loops
Applications
The VIPER50A(022Y) is suitable for a variety of offline power supply applications, including:
- General-purpose offline power supplies
- Consumer electronics
- Industrial power supplies
- Telecommunication equipment
- Medical devices requiring high efficiency and reliability
Q & A
- What is the VIPER50A(022Y) used for?
The VIPER50A(022Y) is used as a controller for AC/DC converters in offline power supplies. - What is the voltage breakdown rating of the VIPER50A(022Y)?
The voltage breakdown rating is 700V. - What is the maximum switching frequency of the VIPER50A(022Y)?
The maximum switching frequency is up to 200 kHz. - Does the VIPER50A(022Y) have over-temperature protection?
Yes, it includes over-temperature protection. - What is the power rating of the VIPER50A(022Y)?
The power rating is 50W. - Is the VIPER50A(022Y) suitable for surface mounting?
Yes, it is designed for surface mounting. - What are the key control features of the VIPER50A(022Y)?
The key control features include frequency control, soft start, and synchronization. - Does the VIPER50A(022Y) support burst mode operation?
Yes, it supports automatic burst mode operation in stand-by conditions. - Is the VIPER50A(022Y) compatible with both primary and secondary regulation loops?
Yes, it is compatible with both primary and secondary regulation loops. - What is the typical application range for the VIPER50A(022Y)?
The typical applications include general-purpose offline power supplies, consumer electronics, industrial power supplies, and telecommunication equipment.
