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BQ7791514PWR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BQ7791514PWR product

BQ7791514PWR

Battery Management

3S-5S protectorLi-ioncell balancingHIBERNATE modeTSSOP-24

BQ7791514PWR is a TI autonomous protector for 3S to 5S Li-ion/Li-polymer packs. It integrates cell monitoring, passive balancing, charge/discharge FET control, and protection without an MCU.

Best for

  • 3S to 5S protected Li-ion battery packs
  • Low-power packs without host monitoring
  • Applications needing autonomous passive balancing

Avoid if

  • Protection thresholds must be field-programmable
  • A host-controlled fuel gauge or telemetry interface is required
  • A battery chemistry outside the supported Li-ion/Li-polymer use case is intended

Check before use

  • Match factory-set thresholds and delays to the battery-cell limits.
  • Configure CCFG correctly for 3S, 4S, or 5S operation.
  • Check CHG/DSG FET protection, gate timing, and current-sense resistor tolerances.

Key specifications

Supported cell count
3 to 5 series cells
Overvoltage threshold
3.65 V per cell
Undervoltage threshold
2.50 V per cell
Short-circuit protection
-200 mV, 400 µs
Package
24-pin TSSOP (PW)

Compliance & Environment

RoHS
Yes
REACH
-
MSL
Level-2-260C-1 YEAR
ECCN
-
HTSUS
-

Application

Power-tool battery packsE-bike battery packsRobotic cleaner battery packs

Datasheet

sszt117

800 KB

Datasheet AI

CAD Models

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Alternative components

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Design and risk insights

Questions & answers

BQ7791514PWR is a 24-pin TSSOP battery-pack protection IC from TI for 3 to 5 series Li-ion or Li-polymer cells. It provides voltage, current, temperature, and open-wire protection plus autonomous passive balancing.