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Double output SMPS for power line applications using the ALTAIR04-900 primary controller
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The STEVAL-ISA133V1 demonstration board implements a 7.5 W double output wide range mains adapter with constant-voltage/constant-current, designed as an innovative AC-DC adapter to supply a complete power line communication system based on the ST7580.

The power supply provides a 13 V output voltage to supply the power line modem (PLM) and the analog circuitry, and a post-regulated 3.3 volts to supply digital circuitry and an optional external microcontroller.

The STEVAL-ISA133V1 demonstration board uses the new ALTAIR04-900, a quasi-resonant (QR) current-mode controller IC specifically designed for QR ZVS (zero voltage switching at switch turn-on) flyback converters, which combines a high-performance low-voltage PWM controller chip and a typical 16 RDSon, 900 V, avalanche-rugged power MOSFET in the same package.

The device is capable of providing constant output voltage regulation using primary-sensing constant voltage loop (CV loop). This eliminates the need for the optocoupler and the secondary voltage reference while maintaining very accurate regulation.

Also, using the primary constant current loop, it is possible to set the maximum deliverable output current without using secondary components or current sensor.

The board implements several protection features that considerably increase end-product safety and reliability: auxiliary winding disconnection (or brownout) detection, shorted secondary rectifier detection, and transformer saturation protection, all of which are auto-restart mode.

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Data Brief

Key Features

  • Universal input mains range: 90 264 Vac- frequency 45 65 Hz
  • Double output voltage: 13V @ 0.55 A and 3.3 V @ 100 mA peak power
  • Optoless constant-voltage/constant-current output regulation
  • Meets power line communication system specifications with the ST7580
  • Average efficiency: > 70%
  • EMI: in accordance with EN55022-Class-B


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1917: Double output SMPS for power line applications using the ALTAIR04-900 primary controller
1.0 255 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
STEVAL-ISA133V1 gerber files
1.0 675 KB

Bill of Materials

描述 版本 大小
2.0 8 KB

Schematic Pack

描述 版本 大小
STEVAL-ISA133V1 schematics
1.0 140 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA133V1ActiveALTAIR04-900-51No availability reported, please contact our Sales officeEcopack2-

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(**) 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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