Texas Instruments

BQ27750DRZT

BQ27750DRZT Description

The BQ27750DRZT from Texas Instruments is a highly integrated, single-cell Li-Ion/Polymer battery protection IC designed for precision monitoring and management. Part of the Impedance Track™ series, it employs advanced algorithms to provide accurate state-of-charge (SOC) and state-of-health (SOH) measurements. This surface-mount device features an I2C interface for seamless communication with host systems and supports a wide range of fault protections, including over-voltage, over-current, over-temperature, and short-circuit detection. Packaged in a 12-pin SON (Small Outline No-Lead) form factor, it is optimized for compact, portable applications.

BQ27750DRZT Features

• Single-Cell Support: Designed for 1-cell Li-Ion/Polymer batteries, ensuring precise voltage and current regulation.
• Advanced Protection: Integrated safeguards against over-voltage, over-current, short-circuit, and thermal runaway.
• Impedance Track™ Technology: Enhances SOC accuracy by compensating for battery aging and temperature effects.
• I2C Interface: Enables real-time data logging and system integration.
• Compact & Robust: 12-SON package (3mm x 4mm) with MSL 2 (1-year floor life) and RoHS3 compliance.
• Low-Power Operation: Optimized for energy-efficient applications, extending battery runtime.

BQ27750DRZT Applications

• Portable Electronics: Smartphones, tablets, and wearables requiring reliable battery protection.
• Medical Devices: Critical for implantable or portable medical equipment where safety is paramount.
• Power Tools: Ensures safe operation in high-drain environments.
• IoT & Wireless Sensors: Ideal for low-power, long-life deployments.
• Backup Power Systems: Provides fail-safe monitoring for uninterruptible power supplies (UPS).

Conclusion of BQ27750DRZT

The BQ27750DRZT stands out for its high-accuracy SOC tracking, robust protection features, and compact design. While now classified as obsolete, its legacy in precision battery management remains relevant for applications demanding reliability and safety. Engineers seeking alternatives should consider newer Impedance Track™ models, but this IC remains a proven solution for legacy designs.