Single Cell Battery Protection ICs Having Low Current Consumption

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It contributes to a standby time for wireless earphones that is three times that of previous products while ensuring greater safety

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Claiming to be the world’s lowest current consumption battery IC during operation of 990nA max. is the new S-82M1A/S-82N1A/S-82N1B Series of 1-cell lithium-ion battery protection ICs by ABLIC Inc. Suitable for lithium-ion rechargeable battery packs and lithium polymer rechargeable battery packs, applications include wireless earphones, smartwatches, hearing aids, activity trackers, headsets and eyeglass devices, etc.

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Examples of protection circuits using the S-82M1A/S-82N1A/S-82N1B Series

It includes the following features: 

  • Accurate overcharge detection voltage as high as ±15mV while consuming low current during operation of 990nA max. 
  • Highly accurate overcurrent protection that is not easily susceptible to temperature fluctuations (the S-82M1A series)
  • Charge-discharge control functions (S-82N1A series)
  • Power saving function that disables battery discharge during power-saving operation and also lowers current consumption of the protection IC down to 50nA, minimising battery consumption to virtually zero (S-82N1B Series)

These features increase standby time by about 3x compared to its predecessors. By helping to prevent deep discharge, the new products significantly contribute to improving product safety.