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ALTAIR05T-800 5 W wide range CV-CC optoless adapter demonstration board
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This board implements a 5 W (5 V / 1 A) wide range mains battery charger with constant voltage-constant current, tailored for AC-DC chargers for mobile phones and adapters and other hand-held equipment.

The core of the application is the ALTAIR05T-800, the first “All-primary sensing switching regulator” of the new ALTAIR family.

The IC combines a high-performance low-voltage PWM controller chip and an 800 V, avalanche-rugged Power MOSFET in the same package.

The PWM chip is a quasi-resonant (QR) current-mode controller IC specifically designed for QR ZVS (zero voltage switching at switch turn-on) flyback converters.

The device is capable of providing constant output voltage (CV) and constant output current (CC) regulation using primary-sensing feedback. This eliminates the need for the optocoupler, the secondary voltage reference, as well as the current sensor, while still maintaining quite accurate regulation.

In addition, it is possible to compensate the voltage drop on the output cable, so as to improve CV regulation on the externally accessible terminals.

Extremely low consumption under no load conditions is ensured thanks to a controlled burst-mode operation that, along with the built-in high-voltage startup circuit and the low operating current of the device, helps minimize the residual input consumption. Although an auxiliary winding is required in the transformer to correctly perform CV/CC regulation, the chip is able to power itself directly from the rectified mains. This is useful especially during CC regulation, where the flyback voltage is generated by the winding drops.

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Data Brief

Key Features

  • Universal input mains range: 90 - 264 Vac, frequency 45 - 65 Hz
  • Output voltage: 5 V@1 A continuous operation
  • Optoless constant voltage - constant current output regulation
  • Standby mains consumption: < 100 mW @ 230 Vac
  • Average efficiency: > 70%
  • EMI: According to EN55022-Class-B


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1534: ALTAIR05T-800 5 W wide range CV-CC optoless adapter demonstration board
1.0 66 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
Gerber files for EVLALTAIR05T-5W
1.0 60 KB

Bill of Materials

描述 版本 大小
1.0 47 KB

Schematic Pack

描述 版本 大小
EVLALTAIR05-5W schematic
1.0 18 KB

License Agreement

描述 版本 大小
Evaluation products license agreement
1.0 126 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVLALTAIR05T-5WActiveALTAIR05T-800-Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA30

(*) 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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