company blog about Supply TI Battery Management:Battery Authentication,Battery Charger,Battery Fuel Gauges

Supply TI Battery Management:Battery Authentication,Battery Charger,Battery Fuel Gauges

As a renowned distributor of electronic components, Shenzhen Mingjiada Electronics Co., Ltd. possesses a number of core strengths, including global channels for sourcing genuine products, a stock of over 2 million SKUs, rapid delivery capabilities, and comprehensive technical and supply chain services. We are able to efficiently resolve component procurement challenges during both the research and development and mass production phases.

[Inventory and Delivery Advantages]

Extensive Inventory: We maintain a stock of over 2 million SKUs, covering general-purpose, niche, scarce, automotive-grade and industrial-grade components, thereby completely eliminating procurement headaches.

Rapid Response and Delivery: Standard orders are dispatched within 1–3 days; domestic urgent orders are dispatched within 4 hours and responded to within 24 hours; dual warehouses in Hong Kong and Shenzhen ensure efficient and smooth logistics operations.

Flexible Procurement Solutions: We support sample requests, small-batch trial production and high-volume procurement, covering the entire product lifecycle from R&D to mass production.

I. Battery Certification: Establishing the First Line of Defence for Battery Safety

Battery safety is a core prerequisite for battery applications, and the battery authentication module is a critical step in ensuring battery-to-device compatibility, eliminating counterfeit and substandard batteries, and mitigating safety risks. TI’s battery authentication products utilise advanced encryption technology and precise identification algorithms to perform comprehensive verification of battery identity, performance and compliance, thereby preventing safety incidents such as overcharging, over-discharging, short circuits and thermal runaway caused by battery incompatibility or substandard batteries at source.

TI’s battery authentication solutions employ a highly secure encryption and authentication mechanism, supporting mainstream encryption algorithms such as SHA-256 and ECC. They enable two-way authentication between batteries and devices, ensuring that only batteries certified by the original manufacturer and compliant with specification standards can be connected to and operated by the device. To meet the security requirements of different application scenarios, the products allow for flexible configuration of authentication permissions and verification rules. For example, in the consumer electronics sector, they can rapidly complete matching verification between batteries and mobile phones or laptops; in high-reliability scenarios such as automotive and industrial applications, it can implement more stringent multi-factor authentication processes, including comprehensive verification of information such as battery model, cell parameters, production batch and health status.

Furthermore, TI’s battery authentication modules feature fault diagnosis and logging capabilities, enabling real-time monitoring of anomalies during the authentication process—such as authentication failures or the connection of unauthorised batteries—and generating log entries to facilitate subsequent traceability and troubleshooting. At the same time, the products feature a high degree of integration and can be seamlessly integrated with battery management systems (BMS), eliminating the need for excessive additional hardware costs and striking a balance between safety and cost-effectiveness. Taking TI’s BQ27Z846 battery monitor as an example, its built-in ECC authentication function enables precise battery monitoring whilst simultaneously performing battery safety authentication, achieving an integrated ‘monitoring + authentication’ solution that is widely used in applications such as smart wearables and portable medical devices.

In practical applications, TI’s battery authentication products effectively address industry challenges such as the proliferation of counterfeit batteries and incompatibility between batteries and devices. They not only safeguard end-users’ safety but also protect brand manufacturers’ product reputation and intellectual property, making them the preferred solution for battery safety authentication in sectors such as consumer electronics, automotive electronics and industrial equipment.

II. Battery Chargers: The Perfect Balance Between High-Efficiency Fast Charging and Safe Charging

With the widespread adoption of fast-charging technology, users are demanding ever-faster charging speeds, whilst simultaneously paying increasing attention to charging safety and battery life. Thanks to innovative circuit design and precise current and voltage control technology, TI’s battery charger products achieve the dual objectives of high-efficiency fast charging and safe charging, covering all charging scenarios from low-power portable devices to high-power industrial and automotive applications.

TI’s battery charger portfolio encompasses various types, including linear chargers, switch-mode chargers and buck-boost chargers. These are compatible with a wide range of battery types—such as lithium-ion, lithium-polymer and lithium iron phosphate batteries—and support charge management for single cells as well as multiple cells connected in series. Among these, switch-mode chargers have become the mainstream solution due to their high energy conversion efficiency (reaching up to 98% or more); they effectively reduce heat loss during charging, extend battery life and simultaneously lower the device’s power consumption.

In terms of fast-charging technology, TI’s charger products support mainstream fast-charging protocols such as USB Type-C PD and QC. They can dynamically adjust charging parameters according to device requirements and battery status, enabling precise three-stage charging: ‘constant current – constant voltage – trickle charge’. Taking the BQ25756 as an example, this product is a 70V bidirectional buck-boost charge controller with MPPT (Maximum Power Point Tracking) functionality. It supports both standalone and I²C control modes and is suitable for high-voltage, high-current charging scenarios such as new energy vehicles and energy storage systems. Not only does it offer high charging efficiency, but it also features multiple protection functions against overvoltage, overcurrent, overheating and reverse connection. It monitors various parameters in real time during the charging process and immediately halts charging should any anomaly occur, ensuring charging safety.

In response to the demand for miniaturisation in portable devices, TI has launched a range of highly integrated charger chips that combine charging control, protection circuits and interface management functions onto a single chip, effectively reducing PCB size and simplifying design complexity. Furthermore, some products support adaptive charging, intelligently adjusting the charging current and voltage based on factors such as battery ageing and ambient temperature to prevent damage caused by overcharging and maximise the battery’s cycle life. Furthermore, TI’s charger products offer excellent compatibility and can work in conjunction with TI battery fuel gauges and certification modules to form a complete closed-loop charging management system, thereby enhancing the overall reliability of the charging system.

Currently, TI battery chargers are widely used in applications such as smartphones, tablets, laptops, power tools, new energy vehicles and industrial energy storage systems. Thanks to their efficiency, safety and compatibility, they have become a key supplier to numerous global brands.

III. Battery Fuel Gauges: Precise Monitoring to Make the Most of Every Kilowatt-hour

Battery fuel gauges serve as the ‘eyes’ of the battery management system. Their core function is to precisely monitor key parameters such as remaining charge, voltage, current, temperature and State of Health (SOH), providing accurate charge level displays and the basis for intelligent power management. Leveraging patented technologies and precise algorithms, TI’s battery fuel gauges have overcome the accuracy limitations of traditional monitoring methods, enabling stable and precise monitoring even under complex operating conditions. This helps optimise power consumption design and enhances the user experience.

TI’s battery fuel gauge products utilise patented technologies such as Impedance Track™ and Dynamic Z-Track™. By monitoring changes in battery impedance in real time and combining this with factors such as temperature, charge and discharge currents, and cycle count, they precisely calculate the State of Charge (SOC) and remaining runtime, with monitoring accuracy maintained within ±2 per cent—far exceeding the industry average. Compared to traditional coulomb counting methods, TI’s patented technologies effectively mitigate the impact of factors such as battery ageing, temperature fluctuations and variations in charge/discharge rates on monitoring accuracy, ensuring stable performance even under complex conditions such as low temperatures and high-current discharge.

The products offer a comprehensive feature set; in addition to basic state-of-charge monitoring, they include battery health assessment, charge/discharge cycle logging and fault warning functions. Taking the BQ28Z610 as an example, this product is suitable for battery packs comprising 1–2 cells in series. It integrates a state-of-charge monitor and protection circuitry, enabling real-time monitoring of abnormal conditions such as overvoltage, undervoltage, overcurrent and overheating, whilst using algorithms to assess battery health, thereby providing users with guidance on battery replacement and maintenance. The BQ27742-G1, on the other hand, is a battery fuel gauge designed for single-cell lithium-ion batteries. It supports rate, temperature and ageing compensation, enabling comprehensive battery protection without the need for a separate protection circuit, and is widely used in compact applications such as smart wearables and portable medical devices.

In terms of compatibility, TI’s battery fuel gauges are suitable for a wide range of battery types and application scenarios, supporting configurations from single cells to multiple cells in series, and can be used in sectors such as consumer electronics, automotive electronics, industrial equipment and energy storage systems. Furthermore, the product supports communication protocols such as I²C and SMBus, enabling seamless integration with MCUs and processors. This facilitates intelligent power management within devices, such as adjusting operating modes based on remaining charge and automatically disabling non-essential functions when the battery is low, thereby extending the device’s battery life. In addition, TI provides comprehensive development tools and software support to help engineers quickly configure and debug the battery fuellometer, thereby shortening the product development cycle.

Precise battery level monitoring not only enhances the user experience by preventing sudden device shutdowns caused by inaccurate battery level displays, but also helps manufacturers optimise power consumption design, minimise wasted battery capacity and reduce product costs. Thanks to their outstanding performance and broad compatibility, TI’s battery monitors have become core components in a wide range of battery-powered products.