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Li-Ion Linear Battery Charger with LDO
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The STNS01 is a linear charger for single-cell Li-Ion batteries integrating an LDO regulator and several battery protection functions.

The device uses a CC/CV algorithm to charge the battery. The fast-charge current can be programmed using an external resistor. Pre-charge current and termination current are scaled accordingly. The floating voltage value is 4.2 V.

The input supply voltage is normally used to charge the battery and provide power to the LDO regulator. When a valid input voltage is not present and the battery is not empty, the device automatically switches to battery power.

The STNS01 integrates overcharge, overdischarge and overcurrent protection circuitry to prevent the battery from being damaged under fault conditions. It also features a charger enable input to stop the charging process when battery overtemperature is detected by external circuitry.

When the shutdown mode is activated, the battery power consumption is reduced to less than 500 nA to maximize battery life during shelf time or shipping.The device is available in a 3 × 3 mm² 12-lead DFN package.

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Errata Sheet
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Key Features

  • Charges single-cell Li-Ion batteries with CC-CV algorithm and charge termination
  • Charge current programmable up to 200 mA
  • 1% accuracy on floating voltage (4.2 V)
  • Integrated 3.1 V LDO regulator
  • Automatic power path management
  • Battery overcharge protection
  • Battery overdischarge protection
  • Battery overcurrent protection
  • Charging timeout
  • Very low battery leakage in overdischarge/shutdown mode
  • Low quiescent current
  • Charge/Fault status output
  • Charger enable input
  • Available in a 12-lead (3 x 3 mm²) DFN package

图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DS9672: Li-Ion linear battery charger with LDO
2.0 2,276 KB

Presentations & Training Material


描述 版本 大小
Power management for handheld and portable applications
734 KB

Related Tools and Software

Related Tools and Software

产品型号 描述
STEVAL-ISB032V1 Li-Ion linear battery charger with LDO

样品 & 购买

产品型号 Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STNS01PURActiveVFDFPN 12 3x3x0.75Tape And Reel_-Distributor reported inventory date: 2015-05-22
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA148943000
ARROWOrder NowEUROPE120000
Farnell Element14Order NowEUROPE29481

(*) 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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