Key facts
- Brand
- STMicroelectronics
- Model
- VIPER20B
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-03-28
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STMicroelectronics VIPer20B/SP Datasheet
This document describes the VIPer20B/SP integrated PWM controller with a rugged 400 V 1.3 A vertical power MOSFET. It includes a block diagram, pin descriptions, and detailed electrical characteristics such as voltage ratings, current limits, and thermal data. The datasheet also presents typical application schematics for offline power supplies, including feedback and optocoupler configurations.
Key features highlighted are adjustable switching frequency up to 200 kHz, soft‑start and shutdown control, automatic burst‑mode operation, internally trimmed Zener reference, undervoltage lock‑out with hysteresis, integrated start‑up supply, over‑temperature protection, low standby current, and adjustable current limitation.
STMicroelectronics VIPER20B specifications
| Maximum Drain Current | 1.3 A |
|---|---|
| Adjustable Switching Frequency | Up to 200 kHz |
| Junction Temperature Range | -40 °C to 140 °C |
| Supply Voltage (VDD) | 0 V to 15 V |
All STMicroelectronics VIPER20B documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What happens when the COMP pin voltage falls below 0.5 V?
When the COMP voltage drops below 0.5 V, the circuit shuts down, providing a zero‑duty‑cycle burst‑mode operation.
What is the maximum continuous drain‑source voltage?
The device can handle a continuous drain‑source voltage from –0.3 V up to 400 V.
Does the device support low standby current operation?
Yes, it includes a low standby current feature for reduced power consumption in standby mode.