ST Life.augmented

SEA05

Advanced CV/CC secondary controller
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The SEA05 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation.

The device integrates a voltage reference, two opamps (with OR-ed open-drain outputs), and a lowside current sensing circuit.

The voltage reference, along with one op-amp, is the core of the voltage control loop; the current sensing circuit and the other op-amp make up the current control loop.

The external components needed to complete the two control loops are: a resistor divider that senses the output of the power supply and fixes the voltage regulation setpoint at the specified value; a sense resistor that feeds the current sensing circuit with a voltage proportional to the dc output current; this resistor determines the current regulation setpoint and must be adequately rated in terms of power dissipation; the frequency compensation components (R-C networks) for both loops.

The device, housed in one of the smallest available package, is ideal for space-shrunk applications such as adapters and chargers.

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Key Features

  • Constant voltage and constant current control
  • Wide operating VCC range [3.5 - 36] V
  • Low quiescent consumption: 200 µA
  • Voltage reference: 2.5 V
  • Voltage control loop accuracy +/- 0.5%
  • Current sense threshold: 50 mV
  • Open-drain output stage
  • Low external component count
  • SOT23-6L micro package

デザイン・リソース

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6685: Advanced constant voltage and constant current controller
1.1 255 KB

Application Notes

Description Version Size
pdf
AN3971: STEVAL-ISV005V2: solar battery charger for lead acid batteries based on the SPV1020 and SEA05
2.0 1,542 KB

Technical Notes & Articles

Description Version Size
pdf
TA0308: Reducing the total no-load power consumption of battery chargers and adapter applications
1.3 100 KB

Design Notes & Tips

Description Version Size
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DN0002: 10W off-line LED driver based on VIPER27
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Presentations & Training Material

Presentations

Description Version Size
pdf
ST products and solutions for solar energy
1.0.0 2,135 KB

サンプル& 購入

トップ
製品型名 Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Reference Voltage (nom) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SEA05TRActiveSOT23-6LTape And Reel_Free Samples.19Distributor reported inventory date: 2014-07-30
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE58771
MOUSEROrder NowWORLDWIDE35831
Ecopack2PDF
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(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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