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Double output SMPS for power line application using ALTAIR04-900 primary controller
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This board implements a 7.5 W double output wide range mains adapter with constant voltage - constant current, developed to build an innovative AC-DC adapter to supply a complete power line communication 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 V to supply digital circuitry and an optional external microcontroller.

The 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 RDS(on), 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 still maintaining quite accurate regulation.

In addition, by using the primary constant current loop (CC loop), it is possible to set the maximum deliverable output current without any secondary components or current sensor.

The board implements several protections 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 in 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: 13 V @ 0.55 A and 3.3 V @ 100 mA peak power
  • Optoless constant voltage - constant current output regulation
  • Meets power line communication system specifications based on the ST7580
  • Average efficiency: > 70%
  • EMI: According to EN55022-Class-B


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1517: Double output SMPS for power line applications using the ALTAIR04-900 primary controller
1.0 100 KB

User Manual

描述 版本 大小
UM1518: ST7580 power line modem demonstration kit graphical user interface (GUI)
2.0 1,866 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
Gerber files for EVLALTAIR900-M1
2.1 187 KB

Bill of Materials

描述 版本 大小
2.1 146 KB

Schematic Pack

描述 版本 大小
EVLALTAIR900-M1 schematic
2.1 75 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVLALTAIR900-M1ActiveALTAIR04-900-Distributor reported inventory date: 2015-10-07
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA80

(*) 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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