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BQ294534
  • BQ294534
  • BQ294534

BQ294534

ACTIVE

4.55-V overvoltage protection (OVP) device for two-series and three-Series cell Li-ion batteries

Texas Instruments BQ294534 Product Info

1 April 2026 3

Parameters

Rating

Catalog

Number of series cells (max)

3

Number of series cells (min)

2, 3

Features

Overvoltage, Single pin output drive

Function

Protection

Operating current (typ) (µA)

1

Vin (max) (V)

25

Overvoltage protection

4.55

Operating temperature range (°C)

-40 to 110

Battery overvoltage protection (min) (V)

4.55

Battery overvoltage protection (max) (V)

4.55

Package

WSON (DRV)-6-4 mm² 2 x 2

Features

  • 2-series and 3-series cell overvoltage monitor for secondary protection
  • Fixed programmable delay timer
  • Fixed OVP threshold
    • Available range from 3.85 V to 4.6 V
  • Fixed OVP delay option: 4 s or 6.5 s
  • High-accuracy overvoltage protection: ±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
  • 2-series and 3-series cell overvoltage monitor for secondary protection
  • Fixed programmable delay timer
  • Fixed OVP threshold
    • Available range from 3.85 V to 4.6 V
  • Fixed OVP delay option: 4 s or 6.5 s
  • High-accuracy overvoltage protection: ±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

Description

The BQ2945xy family of products is a secondary-level voltage monitor and protector for Li-ion battery pack systems. Each cell is monitored independently for an overvoltage condition. Based on the configuration, an output is triggered after a fixed delay if any of the two or three cells has an overvoltage condition. This output is triggered into a high state after an overvoltage condition satisfies the specified delay timer.

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