Skip to main content
Log in
Texas Instruments BQ294702DSGT — Analog & Data Acquisition

TI BQ294702DSGT Battery Protection IC, 2-4 Cell Li-Ion

MPNBQ294702DSGT
End of Life

Texas Instruments BQ294702DSGT battery protection IC, Li-Ion 2-4 cell, over-voltage fault protection, 8-WFDFN exposed pad / 8-WSON (2x2) package, surface mount, -40°C to 110°C.

$1.01Ref. price · indicative, final on quote
Texas Instruments BQ294702DSGT datasheet (PDF)
Packaging8-WFDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ294702DSGT specifications
ParameterValue
MountingSurface Mount
Operating temperature-40°C ~ 110°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionBattery Protection
Case8-WFDFN Exposed Pad
Number of cells2 ~ 4
Fault protectionOver Voltage
Battery chemistryLithium Ion

Product details

2-4 cell Li-ion over-voltage monitor

The BQ294702DSGT is a dedicated battery protection IC from Texas Instruments that monitors 2 to 4 series-connected lithium-ion cells for over-voltage conditions. It triggers a fault output when any cell exceeds the over-voltage threshold, giving the system controller or charge FET a signal to interrupt charging. The part is housed in an 8-WFDFN with exposed pad (supplier device package 8-WSON, 2x2 mm), a compact footprint suited for space-constrained battery pack PCBs where board area is at a premium.

Temperature range and deployment context

Rated for -40°C to 110°C ambient, the BQ294702DSGT covers the full operating envelope of consumer, industrial, and some automotive-grade battery packs. The 110°C upper limit provides margin above typical 85°C pack interiors, important when cells are under fast-charge or in a sealed enclosure. Surface-mount assembly on the 8-WSON package follows standard lead-free reflow profiles.

Sourcing is confirmed against an RFQ — lead time and pricing are established at quote time, with the BOM quantity as the basis.

Frequently asked questions

What is the closest functional alternative to BQ294702DSGT?

The BQ296217DSGT is a close peer — same 2-4 cell Li-ion over-voltage protection function, same 8-WSON package, and same -40°C to 110°C temperature range. It is a viable second-source candidate for BOM risk mitigation, though pin compatibility should be verified against the specific application schematic.

What compliance documentation does Texas Instruments provide for BQ294702DSGT?

The BQ294702DSGT is ROHS3 compliant per the manufacturer's status. Standard TI documentation includes the datasheet, application notes, and PCN notifications for any changes. No additional UL or IEC certifications are listed in the part record.