Overview
The VIPer100A-E, produced by STMicroelectronics, is a high-performance AC/DC converter IC designed for offline power supplies. It integrates a state-of-the-art PWM circuit with an optimized 700 V avalanche rugged Vertical Power MOSFET on the same silicon chip, leveraging STMicroelectronics’ proprietary VIPower technology. This device is capable of delivering up to 100 W for the upper voltage range or 50 W for universal input, making it suitable for a wide range of applications requiring efficient and reliable power conversion.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage | 90-132 VAC (with jumper), 180-264 VAC (without jumper) | VAC |
| Output Voltage | Adjustable, e.g., 18 V at 6 A | V |
| Switching Frequency | Up to 20 kHz | kHz |
| Load Regulation | +/- 0.6% (from set point) | % |
| Line Regulation | +/- 0.05% (at max load) | % |
| Efficiency | 86% @120 VDC, 87% @ 375 VDC | % |
| Output Ripple Voltage | 15 mV max | mV |
| Input Power at No Load | 1.5 W typical | W |
| Transient Response | +/- 350 mV, +/- 1.9%, 200 µs settling time | mV, %, µs |
| EMI Compliance | EN55022 and FCC class B |
Key Features
- Adjustable switching frequency up to 20 kHz
- Current mode control with burst mode operation in standby mode, meeting the 'Blue Angel' norm (<1 W total power consumption)
- Undervoltage lock-out with hysteresis
- Integrated start-up supply
- Avalanche rugged Vertical Power MOSFET
- Overtemperature protection
- Primary or secondary regulation
- Soft start and shutdown control
- Internally trimmed Zener reference
- Adjustable current limitation
Applications
The VIPer100A-E is suitable for various offline power supply applications, including but not limited to:
- Audio equipment power supplies where constant power is crucial during peak loads
- General-purpose offline power supplies requiring high efficiency and reliability
- Power supplies for industrial and consumer electronics that need to meet stringent EMI standards (EN55022 and FCC class B)
- Applications requiring both primary and secondary regulation with minimal component count
Q & A
- What is the maximum output power of the VIPer100A-E?
The VIPer100A-E can deliver up to 100 W for the upper voltage range or 50 W for universal input. - What are the input voltage ranges for the VIPer100A-E?
The input voltage ranges are 90-132 VAC with a jumper and 180-264 VAC without a jumper. - What is the switching frequency range of the VIPer100A-E?
The switching frequency can be adjusted up to 20 kHz. - Does the VIPer100A-E support burst mode operation?
Yes, it supports burst mode operation in standby mode to meet the 'Blue Angel' norm (<1 W total power consumption). - What type of regulation does the VIPer100A-E support?
The VIPer100A-E supports both primary and secondary regulation. - How does the VIPer100A-E handle overtemperature conditions?
The device features overtemperature protection with thermal shutdown and hysteresis. - What is the efficiency of the VIPer100A-E?
The efficiency is 86% @120 VDC and 87% @ 375 VDC. - Does the VIPer100A-E meet any specific EMI standards?
Yes, it meets EN55022 and FCC class B EMI standards. - What is the minimum load requirement for optimal performance?
A minimum load of 40 mA (0.6% of maximum load) is required to keep the unit in optimal performance. - How does the VIPer100A-E handle short circuit conditions?
The device enters a 'hiccup mode' during short circuit conditions, cycling on and off to protect against excessive current.
