Product details


Function Protection Number of series cells (Min) 1 Number of series cells (Max) 1 Features Over-voltage (OV), Single pin output drive Typical operating current (Typ) (uA) 1 Rating Catalog Vin (Max) (V) 8 open-in-new Find other Battery protectors

Package | Pins | Size

WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Battery protectors


  • Single-Cell Overvoltage Monitor for Secondary Protection
  • Fixed Programmable Delay Timer
  • Fixed Overvoltage Protection (OVP) Threshold
    • Available Range of 3.85 V to 4.6 V
  • Fixed OVP Delay Option: 4 s or 6.5 s
  • High-Accuracy OVP:
    ± 10 mV
  • Low Power Consumption ICC ≈ 1 µA
  • Low Leakage Current per Cell Input < 100 nA
  • Small Package Footprint
    • 6-Pin SON

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The bq2946xx family of products is a secondary-level overvoltage monitor and protector for Li-Ion battery pack systems. The cell is monitored for overvoltage condition and triggers an internal counter once the OVP threshold is exceeded; after a fixed set delay, the out is transitioned to a high level. The output is reset (goes low) if the cell voltage drops below the set threshold minus the hysteresis.

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Technical documentation

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Type Title Date
* Datasheet bq2946xx Single-Cell Protector for Li-Ion Batteries datasheet (Rev. D) Apr. 19, 2017

Design & development

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WSON (DRV) 6 View options

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