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Texas Instruments BQ24079QWRGTRQ1 — Power Management (PMIC / Gate Driver)

BQ24079QWRGTRQ1 Texas Instruments Automotive Li-Ion Charger

MPNBQ24079QWRGTRQ1
Active

Texas Instruments BQ24079QWRGTRQ1, Automotive AEC-Q100, single-cell Li-Ion/Polymer linear charger IC, 1.5A max charge current, USB interface, 16-VFQFN exposed pad package.

$4.5600Ref. price · indicative, final on quote
Texas Instruments BQ24079QWRGTRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24079QWRGTRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Battery pack voltage4.1V
Supply voltage26V
Current - chargingConstant - Programmable
Charge current - max1.5A
InterfaceUSB
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case16-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage, Reverse Current, Short Circuit
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

AEC-Q100 qualified single-cell charger with 26V input tolerance

The BQ24079QWRGTRQ1 is an automotive-grade (AEC-Q100) single-cell Li-Ion/Polymer linear charger IC from Texas Instruments, rated for a maximum charge current of 1.5A and a supply voltage up to 26V.

Programmable charge current and timer with fault protection

Charge current is constant and programmable via an external resistor; a programmable timer sets the safety timeout. Fault protection includes over-temperature, over-voltage, reverse current, and short-circuit detection. The USB interface allows direct connection to a standard USB port or a dedicated charger adapter, with the battery pack voltage regulated to 4.1V.

Active production — no end-of-life risk for automotive programs

The base product number is BQ24079; the full order code includes the Q1 suffix indicating AEC-Q100 qualification and the RGTR package code for the 16-VQFN (3x3 mm) exposed pad.

16-VFQFN exposed pad — thermal and layout considerations

Frequently asked questions

Is BQ24079QWRGTRQ1 suitable for automotive battery charging?

It is designed for single-cell Li-Ion/Polymer packs in automotive infotainment, telematics, and ADAS backup-battery applications.

Is BQ24079QWRGTRQ1 compatible with 4.2V Li-ion batteries?

The battery pack voltage is regulated to 4.1V, so it is intended for cells with a 4.1V charge termination voltage, not standard 4.2V cells. Confirm your battery specification before design-in.