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Texas Instruments BQ24193RGER — Power Management (PMIC / Gate Driver)

BQ24193RGER Li-Ion Battery Charger IC, 4.5 A Max, I²C

MPNBQ24193RGER
Active

Texas Instruments BQ24193RGER, Li-Ion/Polymer battery charger IC, 1-cell, 4.5 A max charge current, I²C interface, 24-VFQFN Exposed Pad, -40°C to 85°C.

$4.2700Ref. price · indicative, final on quote
Texas Instruments BQ24193RGER datasheet (PDF)
Packaging24-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24193RGER specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Voltage17V
Current - chargingConstant - Programmable
Charge current - max4.5A
InterfaceI²C
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Current, Over Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer

Product details

Charge current and thermal limits

The 4.5 A maximum charge current is the headline rating — it determines how fast a single-cell pack can be replenished.

I²C interface for dynamic control

The I²C interface allows the host microcontroller to set charge current, termination threshold, and safety timer values in real time. This is useful for systems that need to throttle charging during high system load or adjust for different battery chemistries. The interface is fixed at I²C — no SMBus or proprietary protocol, so the firmware integration is straightforward on any MCU with an I²C peripheral.

The BQ24193RGER is an active, current-production part per TI's product status. It is ROHS3 compliant. There is no LTB window or successor announced — this part is still specified into new designs.

Frequently asked questions

Does BQ24193RGER support I²C communication?

Yes, the BQ24193RGER uses an I²C interface for programming charge current, termination, and safety parameters.

Can BQ24193RGER charge a 2-cell battery?

No, the BQ24193RGER is designed for single-cell (1-cell) Li-Ion/Li-Polymer packs only. It does not support 2-cell charging without external balancing.

What is the difference between BQ24193RGER and BQ24193?

The BQ24193RGER and BQ24193 share the same base charger design and I²C interface. The 'RGER' suffix indicates the 24-VQFN (4x4 mm) package and Tape & Reel packaging, while the base BQ24193 may be offered in other package variants. Functionally they are identical.