Şirket Blog About Recycle Infineon Battery Management IC:TLE9009,TLE9012,TLE9015,TLE9016,TLE9018

Recycle Infineon Battery Management IC:TLE9009,TLE9012,TLE9015,TLE9016,TLE9018

Shenzhen Mingjiada Electronics Co., Ltd., a globally renowned electronic component recycling enterprise, has been deeply involved in the recycling industry for many years. We purchase all types of idle stock from factories, traders, distributors, R&D companies and equipment manufacturers across the country, providing a one-stop solution to problems such as excess chip inventory, warehouse space occupation and tied-up capital.

1. Our recycling scope covers all conditions, with no entry barriers

Brand-new, factory-direct materials: palletised, in original factory-sealed reels, with original factory labels, complete batches and clear silkscreen markings;

Project offcuts/bulk new materials: unused, free from oxidation, with intact pins and undamaged packaging;

Components from dismantled equipment: chips removed from intact equipment, fully functional and free from physical damage;

Bulk clearance: Entire batches of inventory orders and surplus materials from cancelled projects; priced by quantity with preferential rates.

2. Key advantages of our professional recycling service

High-value recycling with transparent pricing: Backed by our own capital reserves and eliminating mark-ups by middlemen, we provide real-time quotations based on market conditions, chip models, product condition and quantity. There are absolutely no hidden fees, and arbitrary price reductions are strictly prohibited.

Comprehensive Coverage and Strong Processing Capacity: We accept chips of all models and quantities—whether it be large-scale factory stock clearance, bulk dismantling of corporate equipment, or small quantities of idle chips held by individuals—we can handle them all appropriately.

Professional Appraisal and Accurate Valuation: Our experienced chip appraisal team is well-versed in chip specifications, market value and authenticity verification methods. We can swiftly distinguish between brand-new, dismantled, refurbished and faulty chips, ensuring accurate valuations and fair, impartial transactions.

Flexible Transactions and Immediate Payment: We offer online quotations based on photographs, as well as on-site inspection and collection services. Our nationwide service network ensures swift local collection or postal returns for customers outside our immediate area. Payment methods include cash, bank transfer, WeChat Pay and Alipay. Payment is made immediately upon successful inspection, with absolutely no delays or outstanding balances.

3. Standardised Recycling Process

Submit Inventory List

Customers compile details of the materials: model, quantity, packaging type (pallet/reel/bulk), production date and photographs of the items, and send this information to our valuation experts;

Accurate Quotation Provided Within 24 Hours

Our technical team verifies the silkscreen markings, packaging and condition of the items, and issues a transparent quotation based on real-time market conditions;

Confirm Transaction Arrangements

Both parties negotiate terms such as direct purchase, consignment or on-site collection, and finalise the specific details regarding logistics, inspection and settlement;

Inspection, Handover and Settlement

On-site stock-taking and inspection; for goods from other locations, full payment will be made immediately upon delivery by courier and confirmation of receipt at our warehouse.

I. Core Common Advantages of the Battery Management IC Series

The Infineon TLE90XX series of battery management ICs utilises a unified, high-end architectural design. The entire range delivers industry-leading performance, significantly reducing customers’ hardware iteration and software adaptation costs. The core common features are as follows:

- High-precision sampling architecture: Equipped with a 16-bit Delta-Sigma ADC and utilising a parallel sampling design, it enables synchronous, high-speed reading of voltages across multiple cells. It offers strong resistance to interference, with voltage sampling accuracy that meets the requirements for precise calculation of SOC and SOH in power batteries, and is suited to demanding in-vehicle electrical environments.

- Top-tier functional safety rating: The entire range of monitoring chips supports the ASIL D functional safety rating and complies with the ISO 26262 automotive safety standard. They incorporate a comprehensive fault diagnosis mechanism capable of real-time monitoring of faults such as overvoltage, undervoltage, overtemperature and communication anomalies, ensuring the safe operation of the battery system.

- Isolated and reliable communication: Equipped as standard with an Iso-UART isolated communication interface, combined with a dedicated daisy-chain topology, it offers exceptional resistance to electrical noise. This enables multi-chip cascading expansion, making it suitable for the distributed monitoring architecture of high-voltage battery packs, with communication stability far exceeding that of traditional non-isolated solutions.

- Ultra-low power consumption design: Standby current as low as 2.5 μA to 4 μA in sleep mode, significantly reducing battery static loss and effectively preventing lithium-ion batteries from discharging during prolonged inactivity; suitable for low-power scenarios such as in-vehicle standby and energy storage systems left idle.

- High environmental adaptability: The operating junction temperature range extends from –40°C to 150°C, with built-in 4 kV ESD protection, making it suitable for complex in-vehicle operating conditions involving high temperatures, vibration and electromagnetic interference. It also complies with RoHS halogen-free environmental certification, ensuring suitability for global compliance markets.

II. Detailed Parameters and Functional Characteristics of Individual Chips

The five chips in the TLE90XX series have clearly defined roles: the TLE9009, TLE9012, TLE9016 and TLE9018 are cell monitoring and balancing ICs, primarily responsible for voltage and temperature sampling and cell balancing; the TLE9015 is a dedicated isolated communication IC, acting as the series’ communication hub and suitable for multi-chip cascading scenarios.

1. TLE9009DQU: Entry-level, high-precision monitoring and balancing IC for 9-cell configurations

The TLE9009DQU is the entry-level battery management IC in the series, designed to provide comprehensive monitoring of 9-cell lithium-ion battery packs. It is housed in a PG-TQFP-48 package, offering a compact form factor and outstanding value for money, making it the preferred solution for small-to-medium capacity lithium-ion systems.

Key specifications: Supports up to 9-channel cell voltage monitoring, with a maximum voltage rating of 9V per cell and a system voltage rating of 90V; features 5 temperature sensing channels for flexible monitoring of battery module and ambient temperatures; supports active cell balancing to optimise battery pack consistency; with a sleep standby current of just 2.5μA, ensuring extremely low power consumption.

Application Scenarios: Suitable for low-voltage lithium-ion systems with 9 series or fewer, it is widely used in cost-sensitive and performance-critical applications such as two-wheeled electric vehicles, portable energy storage, vehicle backup batteries and small-scale industrial lithium-ion equipment.

2. TLE9012DQU: Mainstream General-Purpose 12-Series BMS Chip

The TLE9012DQU is the most versatile core model in the series, perfectly suited to the market’s mainstream 12-series lithium-ion battery architecture. It is also housed in a PG-TQFP-48 package, with pin compatibility with the TLE9009, facilitating hardware iteration and upgrades.

Key specifications: Supports synchronous monitoring of cell voltages across 12 channels, with a single-cell voltage rating of 9 V and a system voltage rating of 90 V; features 5 high-precision temperature sensing channels, whilst retaining the series’ standard 16-bit ADC sampling, Iso-UART isolated communication and ASIL D functional safety protection; standby current of 2.5 μA; supports multi-chip cascading for scalability.

Application Scenarios: Primarily targeted at low-voltage batteries for passenger cars, lithium-ion systems for light commercial vehicles, 12-cell series energy storage power supplies, and high-power power tool battery packs; it is the mainstream standard chip for mid-range lithium-ion systems in both consumer and automotive applications.

3. TLE9015DQU: Dedicated Iso-UART Isolated Communication Hub IC

The TLE9015DQU is a dedicated communication chip within the series, without cell monitoring functionality. Its core function is to establish a daisy-chain isolated communication architecture, serving as the central hub for high-voltage BMS systems involving multiple chip cascades. It is packaged in a PG-TQFP-48 and is compatible with the series’ hardware design.

Key Specifications: Features a standard high-performance Iso-UART isolated communication interface, 4 kV ESD protection and excellent resistance to electromagnetic interference; standby current of 2.5 μA; supports a system voltage of 90 V; seamlessly compatible with the full range of TLE9009, TLE9012, TLE9016 and TLE9018 monitoring chips, enabling multi-chip network communication and resolving communication stability issues in the distributed monitoring of high-voltage battery packs.

Application scenarios: Primarily used in high-voltage power battery packs and large-capacity energy storage systems, it enables daisy-chain cascading in conjunction with multiple monitoring chips. It is widely applied in high-voltage BMS for new energy vehicles, commercial and industrial energy storage power stations, and large-scale lithium-ion energy storage equipment.

4. TLE9016DQK: 16-string medium-to-high-voltage high-capacity monitoring and balancing IC

The TLE9016DQK is a mid-to-high-end multi-channel monitoring chip, upgraded to a PG-LQFP-64 large package, with comprehensive enhancements to both the number of channels and voltage rating, making it suitable for 16-string high-capacity lithium-ion battery systems.

Key specifications: Supports 16-channel cell voltage monitoring, with the maximum voltage rating per cell increased to 10 V and the system voltage rating upgraded to 120 V; features 8 temperature sensing channels, enabling multi-point temperature monitoring of battery modules for higher thermal management accuracy; utilises a high-speed parallel ADC architecture, offering superior sampling speed and synchronisation compared to entry-level models; standby current of 4 μA, whilst retaining ASIL D safety rating and isolated communication functionality.

Application scenarios: Suitable for 16-cell lithium-ion systems, commonly used in new energy commercial vehicle batteries, medium-sized energy storage power stations, power batteries for construction machinery, and high-end specialised lithium-ion equipment.

5. TLE9018DQK: Flagship 18-cell high-capacity monitoring and balancing IC

The TLE9018DQK is the highest-specification monitoring IC in this series, designed primarily for monitoring 18-cell ultra-high-capacity lithium-ion batteries. It also utilises a PG-LQFP-64 package and serves as the flagship solution for high-voltage, high-capacity battery systems.

Key specifications: The highest number of cell voltage monitoring channels in the series (up to 18), with a 10 V per-cell withstand voltage and a 120 V system withstand voltage; these specifications are consistent with those of the TLE9016. It is equipped with 8 high-precision temperature sensing channels, supporting comprehensive battery thermal monitoring. It integrates high-performance active balancing, fault diagnosis and isolated communication functions, meeting the highest automotive safety standards.

Application Scenarios: Designed specifically for 18-cell high-voltage, high-capacity lithium-ion battery systems, it is widely used in high-end applications such as high-voltage power batteries for new energy passenger vehicles, large-scale commercial and industrial energy storage systems, batteries for heavy-duty construction machinery, and high-end energy storage power supplies.

III. Analysis of Key Technical Highlights

1. Distributed Daisy-Chain Communication Architecture

Leveraging the combination of the TLE9015 communication chip and the full range of monitoring chips, a distributed daisy-chain topology can be established, eliminating the need for traditional, cumbersome wiring harnesses and significantly simplifying the high-voltage BMS hardware structure. Isolated Iso-UART communication effectively mitigates interference from high-voltage circuits, ensuring stable data transmission across multi-chip networks. It supports ultra-long-distance, multi-node signal transmission, catering to the distributed monitoring requirements of large battery packs.

2. High-Precision Synchronous Sampling Technology

The entire range is equipped with 16-bit Delta-Sigma ADCs, which, in conjunction with a parallel sampling architecture, enable high-speed synchronous acquisition of all cell voltages, thereby avoiding voltage errors caused by time-division sampling. Precise voltage and temperature data provide reliable support for battery SOC and SOH estimation, balancing control and thermal protection strategies, effectively enhancing battery pack consistency and cycle life.

3. Comprehensive Safety Protection Mechanisms

Designed to the highest functional safety standard (ASIL D), the system incorporates multiple diagnostic protection mechanisms, including overvoltage, undervoltage, overtemperature, low-temperature, communication failure and cell anomaly detection. It reports fault information in real time and triggers protective measures, eliminating risks such as overcharging, over-discharging and thermal runaway at the hardware level, thereby meeting the requirements of high-safety-level applications such as automotive and energy storage systems.

4. Low-Power, Long-Duration Operation Design

With an ultra-low standby current of just 2.5 μA in chip sleep mode, power consumption is significantly reduced compared to traditional BMS chips. This effectively addresses the issue of excessive self-discharge during prolonged battery inactivity, making it suitable for scenarios such as long-term vehicle parking and energy storage system standby mode, thereby reducing operational and maintenance costs.