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Texas Instruments BQ7721611PWR — Discrete Semiconductors
Texas Instruments

BQ7721611PWR Battery Protection IC, 3–16 Cells, 24-TSSOP

MPNBQ7721611PWR
End of Life

Texas Instruments BQ7721611PWR, Battery Protection IC, 3 ~ 16 Cells, Lithium Ion, Over/Under Voltage & Over Temperature Protection, Surface Mount, 24-TSSOP, -40°C to 110°C.

$2.81Ref. price · indicative, final on quote
BQ7721611PWR datasheet
Packaging24-TSSOP (0.173", 4.40mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BQ7721611PWR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Operating temperature-40°C ~ 110°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionBattery Protection
Case24-TSSOP (0.173\", 4.40mm Width)
Number of cells3 ~ 16
Fault protectionOver Temperature, Over/Under Voltage
Battery chemistryLithium Ion

Product details

What this part does and where it fits

The Texas Instruments BQ7721611PWR is a voltage and temperature protection IC for lithium-ion battery stacks. It monitors between 3 and 16 series cells, triggering a fault output when any cell exceeds the over-voltage threshold, drops below the under-voltage threshold, or the die temperature rises past the over-temperature limit. The 24-TSSOP package keeps the footprint small for space-constrained battery management boards in power tools, e-bikes, energy storage systems, and portable medical equipment.

Protection coverage and temperature grade

The fault-protection set covers over-voltage, under-voltage, and over-temperature. The operating temperature range is -40°C to 110°C (TA).

Package and mounting

Housed in a 24-TSSOP (0.173", 4.40 mm width) surface-mount package. The supplier device package is also 24-TSSOP.

Lifecycle and sourcing

The BQ7721611PWR carries an active lifecycle status and is ROHS3 compliant.

Frequently asked questions

How many cells can BQ7721611PWR protect?

The BQ7721611PWR monitors and protects between 3 and 16 series lithium-ion cells.

Is BQ7721611PWR compatible with LiFePO4 batteries?

The device is specified for lithium-ion chemistry. LiFePO4 cells have a different voltage profile, so the over-voltage and under-voltage thresholds may not align. Verify the thresholds against the LiFePO4 cell specification before committing the design.

What is the difference between BQ7721611PWR and BQ77216?

The BQ77216 is a related device in the same family. The BQ7721611PWR variant is the specific orderable configuration in the 24-TSSOP package with Tape & Reel packaging. The functional differences, if any, are detailed in the TI datasheet; the part number suffix indicates the packaging option.