STMicroelectronics AN1246 VIPer20A-E Auxiliary Bias Power Supply Application Note

The VIPer20ADIP-E is a current mode PWM with a 700 V avalanche rugged Power MOSFET. It can provide an output of 10 W power capability for wide range input, or 20 W for single input voltage range.

Brand: STMicroelectronics
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 8
File format: PDF
File size: 101 KB
Published: 06 August, 2012
Updated: 30 September, 2023
Model: VIPER20A-E
MD5 checksum: B972A8F32BC7EC9973F8E9CDA41F3390
PDF: STMicroelectronics AN1246 VIPer20A-E Auxiliary Bias Power Supply Application Note PDF

About this manual

The document details an auxiliary bias power supply circuit designed to meet the requirements of powering up Power MOSFETs and providing standby power when the main unit is off. It features the VIPer20ADIP-E, a current mode PWM controller with integrated analog control circuits and a vertical power device.

What's inside

Key features
General circuit description
Connecting the demoboard
Layout considerations
Burst Mode
Performance and cost consideration

Specifications

Input voltage range	110 to 375 Vdc
Output voltage	12 V
Maximum output current	0.5 A continuous
Load regulation	+/-25 mV or +/-0.2%
Efficiency at 120 Vdc	84%

Frequently asked questions

What is the purpose of this circuit?

The circuit provides a bias power supply to meet the needs of powering up Power MOSFETs as well as providing standby power when the main unit is off.

What is the minimum input voltage required?

The minimum voltage to operate this demo board is 110 Vdc.

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