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Secondary Protection

Secondary Protection

Secondary battery protection ICs for Li-ion/Li-polymer cell provide a added layer of protection in addition to the primary protection IC to ensure redundancy and safe battery operation. The IC monitors overvoltage conditions for each cell, and can shut off a circuit to protect the battery cell if it detects an overvoltage event even when there is a fault in the primary protection system.
Features
  • Both single cell and multi-cell batteries supported
  • Cascade connection supported for multi series cell stack
  • Built-in delay timer
  • Wide range of detection voltage and delay timer settings
Applications (1-cell)
  • Smartphone / tablet
  • Smart watch / fitness tracker
  • Wireless headphone and true wireless earbuds
  • Smart glass
  • Gaming console and controller
Applications (multi-cell)
  • Electric tool
  • Electric bike / scooter
  • Cordless / robot vacuum cleaner
  • Portable power station

Product Series


Select one or more checkboxes next to the Series Name to see available inventory to the right.
Click one of the Series Names to see part numbers filter by series.

Series Name
Series Overcharge Detection Voltage
Overcharge Detection Voltage Range
Series Packaging Types
Data Sheet
4.6 - 4.5
(±20)
SSON-6A, SOT-26A
PDF
4.0 - 4.5
(±25)
SSON-6A, SOT-26A
PDF
4.0 - 5.0
(±20)
SON-6C
PDF
3.6 - 4.5
(±25)
PLP-10A
PDF

Part No. Inventory

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Click on Full Part No. to see detailed specifications.

Full Part No.
Availability
Please select series to see Part No.