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STMicroelectronics GG25LJ — Analog & Data Acquisition

STMicro GG25LJ Battery Monitor, I²C, 10-FCCSP

MPNGG25LJ
End of Life

STMicroelectronics OptimGauge™ Battery Monitor, GG25LJ, I²C interface, 10-WFBGA FCCSP package, -40°C to 85°C, Tape & Reel.

$3.0Ref. price · indicative, final on quote
STMicroelectronics GG25LJ datasheet (PDF)
Packaging10-WFBGA, FCCSP
RoHSROHS3 Compliant
SeriesOptimGauge™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

GG25LJ specifications
ParameterValue
SeriesOptimGauge™
MountingSurface Mount
InterfaceI²C
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionBattery Monitor
Case10-WFBGA, FCCSP

Product details

Active gas gauge with I²C readout

The GG25LJ is an STMicroelectronics OptimGauge™ battery monitor IC that tracks charge state via an I²C interface. The 10-FCCSP package (1.37x2.01 mm) keeps the footprint small enough for a single-cell Li-ion pack embedded in a wearable or handheld device.

Cross-reference to STC3115 variants

The GG25LJ shares the OptimGauge™ family and I²C battery-monitor function with the STC3115IJT, STC3115AIJT, and STC3115IQT. All four parts operate over the same -40°C to 85°C range and use surface-mount packages. The key difference is the package variant — the GG25LJ comes in a 10-FCCSP (1.37x2.01 mm), while the STC3115IJT and its siblings use different package outlines. Confirm the PCB land pattern before substituting one for the other.

Frequently asked questions

How can I order GG25LJ or check current stock?

The GG25LJ is an active STMicroelectronics part. Submit an RFQ with your target quantity; we source through authorized and independent distribution and confirm availability and pricing at quote time.

Is GG25LJ a direct replacement for STC3115IJT?

The GG25LJ and STC3115IJT are both OptimGauge™ battery monitors with I²C interface and the same temperature range, but they use different package outlines. The GG25LJ is in a 10-FCCSP (1.37x2.01 mm); the STC3115IJT uses a different package. Verify the PCB footprint compatibility before substituting.