STMicroelectronics

GG25LJ

GG25LJ Description

The GG25LJ from STMicroelectronics is a high-precision battery monitor and gas gauge IC designed for surface-mount applications. Part of the OptimGauge™ series, this obsolete but reliable component offers advanced battery management capabilities via an I2C interface, making it ideal for monitoring charge/discharge cycles, state-of-charge (SoC), and cell voltage in rechargeable battery systems. Packaged in a compact 10-lead FCCSP and delivered in Tape & Reel (TR), it complies with ROHS3 and REACH environmental standards while adhering to EAR99 export controls.

GG25LJ Features

• OptimGauge™ Technology: Enhances accuracy in battery state estimation, outperforming conventional coulomb-counting methods.
• I2C Interface: Enables seamless communication with host microcontrollers for real-time data logging and system adjustments.
• Surface-Mount Design: Facilitates integration into space-constrained PCB layouts.
• Robust Compliance: ROHS3 Compliant and REACH Unaffected, ensuring environmental and regulatory adherence.
• Moisture Sensitivity Level (MSL) 1: Suitable for extended storage and handling without stringent humidity controls.
• Obsolete Status: While no longer in production, it remains a viable choice for legacy designs or specific niche applications.

GG25LJ Applications

• Portable Electronics: Smartphones, tablets, and wearables requiring precise battery health monitoring.
• Medical Devices: Critical for implantable or portable medical equipment where battery reliability is paramount.
• Industrial IoT (IIoT): Supports energy management in wireless sensor nodes and remote monitoring systems.
• Backup Power Systems: Ensures accurate state-of-charge reporting in UPS and energy storage units.
• Automotive Accessories: Ideal for 12V/24V auxiliary battery monitoring in infotainment or telematics systems.

Conclusion of GG25LJ

The GG25LJ stands out for its OptimGauge™ precision and I2C interoperability, making it a robust solution for battery management despite its obsolete status. Its compact form factor, compliance certifications, and versatile applications cater to demanding environments where battery performance tracking is critical. Engineers seeking a proven, legacy-compatible gas gauge IC for low-power or embedded systems will find the GG25LJ a technically sound choice.