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Wide range isolated flyback demonstration board, single output 12 V/4.2 W based on the VIPer16LN
  • active 活性

This board implements a 4 W single-output wide range mains power supply set in flyback isolated topology, using the VIPER16LN, an off-line high voltage converter by STMicroelectronics.

The features include an 800 V avalanche rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, current limiting with adjustable set point, on-board soft-start, a safe auto-restart after a fault condition and a low stand-by power.

The device does not require a biasing circuit to operate because the IC can be supplied by an internal current generator, therefore saving the cost of the transformers auxiliary winding. If the device is biased through an auxiliary winding, the demonstration board can reach very low standby consumption (< 30 mW at 230 VAC, with output load disconnected).

The IC implements several protections that considerably increase end-product safety and reliability: thermal shutdown with hysteresis, delayed overload protection, open loop failure protection (the last one available only if the device is biased through the auxiliary winding).

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Data Brief

Key Features

  • Universal input mains range:
  • input voltage 90 - 264 VAC
  • frequency 45 - 65 Hz
  • Single output voltage: 12 V at 0.35 A continuous operation
  • Stand-by mains consumption: < 30 mW at 230 VAC
  • Average efficiency: > 75 %
  • Fully protected against faults (overload, feedback disconnection and overheating)
  • EMI: according to EN55022-Class-B


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1852: Wide range isolated flyback demonstration board, single output 12 V/4.2 W based on the VIPER16LN
1.0 547 KB

Application Notes

描述 版本 大小
AN4259: STEVAL-ISA117V1: 12 V/4.2 W, 60 kHz flyback isolated with VIPer16LN
1.0 4,558 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
STEVAL-ISA117V1 gerber files
1.0 504 KB

Bill of Materials

描述 版本 大小
1.0 54 KB

Schematic Pack

描述 版本 大小
STEVAL-ISA117V1 schematics
1.0 18 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA117V1ActiveVIPer16LNBuy Direct51.45Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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