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Texas Instruments BQ24073RGTR — Power Management (PMIC / Gate Driver)

BQ24073RGTR Li-Ion Battery Charger IC – Texas Instruments

MPNBQ24073RGTR
Active

Texas Instruments BQ24073RGTR, single-cell Lithium-Ion battery charger IC, USB interface, 1.5A max charge current, 4.2V battery termination, 16-VFQFN exposed-pad package, surface-mount.

$3.6500Ref. price · indicative, final on quote
Texas Instruments BQ24073RGTR datasheet (PDF)
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24073RGTR specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage6.4V
Current - chargingConstant - Programmable
Charge current - max1.5A
InterfaceUSB
Operating temperature-40°C~125°C(TJ)
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
Programmable featuresCurrent, Timer

Product details

Charge current and termination voltage

The BQ24073RGTR delivers a programmable constant charge current up to 1.5 A and terminates at 4.2 V, matching the standard full-charge voltage for single-cell Li-Ion and Li-Po cells. The charge current is set with an external resistor; the timer is also programmable, giving the designer control over the charge profile without firmware overhead. Input supply maximum is 6.4 V, which provides headroom for USB bus voltage and includes over-voltage protection that shuts down the charger if the input exceeds the safe limit.

Protection set and thermal range

Integrated fault protection covers over-temperature, over-voltage, reverse current, and short circuit — this reduces external monitoring circuitry and simplifies the BOM for a portable device charger block.

Cut Tape works for prototyping or low-volume builds.

Frequently asked questions

Is BQ24073RGTR compatible with Lithium Polymer (Li-Po) batteries?

Yes. The charger terminates at 4.2 V, which is the standard full-charge voltage for a single-cell Li-Po cell with a 3.7 V nominal rating. The programmable charge current also allows setting a safe rate for the specific cell capacity.

What is the difference between BQ24073 and BQ24072?

Both are single-cell USB chargers with the same package and protection set. The BQ24073 (this part) terminates at 4.2 V; the BQ24072 terminates at 4.4 V, which suits cells rated for a higher float voltage. Check your battery's maximum charge voltage before substituting.