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BQ2946

ACTIVE

Family Overvoltage Protection Device for 1-Cell Li-Ion Batteries, with 4.35v OVP

Product details

Function Protection Number of series cells (min) 1 Number of series cells (max) 1 Features Overvoltage, Single pin output drive Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 8 Overvoltage protection 4.225, 4.35, 4.45 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.85 Battery overvoltage protection (max) (V) 4.6
Function Protection Number of series cells (min) 1 Number of series cells (max) 1 Features Overvoltage, Single pin output drive Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 8 Overvoltage protection 4.225, 4.35, 4.45 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.85 Battery overvoltage protection (max) (V) 4.6
WSON (DRV) 6 4 mm² 2 x 2
  • 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 (VCELL(ALL) < VPROTECT)
  • Low Leakage Current per Cell Input < 100 nA
  • Small Package Footprint
    • 6-Pin SON
  • 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 (VCELL(ALL) < VPROTECT)
  • Low Leakage Current per Cell Input < 100 nA
  • Small Package Footprint
    • 6-Pin SON

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.

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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* Data sheet BQ2946xx Single-Cell Protector for Li-Ion Batteries datasheet (Rev. E) PDF | HTML 30 Apr 2021

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WSON (DRV) 6 View options

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