Core Sea Technology CBM8580,Typical Applications of 2-4 BMS New Products in Pen Electronics
Time:2023-08-28
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In the first half of 2023, Xinhai Technology (stock code: 688595) launched the CBMX58X series of 2-4 BMS management chips after the large-scale production of high-precision BMS single energy meter products in 2022.
The CBM X58X series includes multiple specifications of products such as CBM 8580 and CBM 6580, which can meet the market demands of various terminal applications at the high, medium, and low end.
Among them, CBM8580 is a single chip fully integrated solution based on 2-4 series lithium-ion or lithium-polymer battery packs. This product can provide power monitoring, protection, and certification functions for 2-section, 3-section, and 4-section series lithium battery packs. With its integrated high-performance simulation peripheral, it measures the available capacity, voltage, current, temperature, and other key parameters of the lithium battery, retains accurate data records, and reports this information to the system host controller through a communication interface.
CBM 8580 has the characteristics of high-precision measurement, safety and reliability, high integration, and easy development. Its key performance indicators have reached or even surpassed international mainstream products. Currently, it has entered the mass production and import stage for multiple domestic brand customers and can be widely used in application scenarios such as laptops, medical equipment, electric tools, and floor cleaning robots.
Lithium applications in laptops
As the most important productivity tool, laptops always strive to meet people‘s functional needs such as high-performance homework, high-frequency network transmission, and portable mobile office in a smaller and lighter product form. Therefore, the comprehensive performance of safe, fast charging and discharging and long-lasting endurance of pen batteries poses a continuous technological innovation challenge.
In the icy and snowy north, laptops are prone to sudden shutdowns and inconvenience in work. The reason for this is that the battery BMS system, due to inaccurate measurement in low-temperature environments, experiences battery fluctuations and is recognized by the system as low battery, resulting in shutdown. Therefore, it can be seen that for a laptop BMS, the most important function is still high-precision measurement.
Lithium batteries have become the best companion for laptops due to their advantages such as small size, light weight, large capacity, and fast charging. Compared to nickel cadmium batteries and lead-acid batteries, lithium batteries have a higher risk of fire or even explosion due to their higher energy density. At the same time, due to the requirements of various high-performance applications in laptops, the working temperature of batteries is often above 45 ℃, and the technical requirements for thermal management are higher.
Due to the need for standby time in laptops, the battery pack is basically composed of multiple sets of parallel battery cells in series, which increase voltage and capacity through series connection. Therefore, compared to a single battery BMS, a multi battery BMS for a laptop requires collecting and processing richer data parameters, providing power balance management and multiple safety protection functions, in order to ensure the continuous operation and service life of the battery pack.
The advantages of CBM 8580 in laptop applications
Xinhai Technology, relying on its nearly 20 years of technological accumulation in the field of "analog signal chain+MCU", has entered the BMS track and quickly achieved a technological breakthrough in single section to multi section products, launching the new BMS product CBM8580 with a significant impact.
Application Block Diagram of Core Sea Technology CBM8580
For laptop application scenarios, CBM8580 has stronger product performance, with many advantages such as high precision, high security, high integration, and easy development. Without changing circuit design and wiring methods, it can achieve perfect compatibility replacement of similar mainstream products from overseas leading manufacturers, helping laptop PACK manufacturers and machine manufacturers simplify the process of replacing or upgrading battery management systems (BMS) and improve efficiency.
High precision measurement: The CBM8580 has two sampling channels, CCADC and VADC, with a minimum sampling resistance of 0.5m Ω and leading voltage and current sampling accuracy in similar products. In product testing, CBM8580 is based on different operating currents and voltages, resulting in lower measurement accuracy and more accurate measurement accuracy. It can quickly charge large currents like a fish in water, fully charge and empty, thereby managing the battery level and health status of terminal products.
Security Protection: CBM8580 has comprehensive security measures to comprehensively improve chip safety performance from hardware and software security protection, safety certification standards, and technical support. It provides software based Level 1 and Level 2 security protection for various faults such as overvoltage, undervoltage, overcurrent, short circuit current, overload, and overheating.
Rich resources: In terms of peripheral support, CBM8580 has built-in I2C, UART, SPI and other interfaces for communication with other devices, controlling temperature sensors and battery status indicators. It also supports multiple security encryption algorithms, supports customer secondary development, and comprehensively meets the personalized needs of terminal products.
Development Ecology: The CBM X58X series has a complete product development ecology, providing high-precision battery SOX algorithms to meet customer firmware burning and upgrading requirements. Through simple and easy to learn visual upper computer software programs, it meets the minimalist development needs of terminal products.
In summary, the CBMX58X series brings highly competitive cost-effectiveness advantages with its high-precision measurement, safety protection, high stability product characteristics, as well as efficient production processes and cost control.
Conclusion
The launch of CBM8580 reflects the technological advantages of Xinhai Technology in the digital analog hybrid field of "ADC+MCU". It is the strategic layout of the company‘s product serialization development in the BMS field and an important measure for the company to continuously improve the ecological construction of PC products.
At present, the BMS series products of Xinhai Technology have been recognized by customers in terms of technical performance, safety and reliability, as well as more stable domestic supply chain product supply. Among them, the single segment product CBM8560 has achieved mass production of high-end phones by top tier mobile phone brand manufacturers on a scale of tens of millions. The multi segment product CBM8580 has also entered the stage of mass production introduction for multiple domestic brand customers. In addition, the company is also smoothly promoting research and development of commercial energy storage and power battery vehicle grade BMS products.
In the future, Xinhai Technology will continue to improve its BMS product research and development and service capabilities in consumer electronics, computer and peripherals, industrial electronics, automotive electronics, and other application fields, committed to becoming a leading force in the domestic BMS and power management chip fields.
At last year‘s Taipei Computer Show (Computex 2022), Xinhai Technology launched numerous computer and peripheral application products and solutions such as EC, PD, USB Hub, HapticPAD, etc. At the upcoming Taipei Computer Show (Computex 2023), which will open on May 30th, CBM 8580 is expected to make its global debut as an important exhibiting product. Stay tuned for relevant exhibitions!
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