Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

L99BM114 is a Li-ion battery monitoring and protecting chip for high-reliability industrial applications and energy storage systems. Up to 14 stacked battery cells can be monitored to meet the requirements of 48 V and higher voltage systems.

Each cell voltage is measured with high accuracy, as well as the current for the on-chip coulomb counting. The device can monitor up to 7 NTCs. The information is transmitted through SPI communication or isolated interface.

Feature of L99BM114

4 to 14 series cells battery monitoring and balancing

64 V operating voltage

Supports busbar connection without altering cell results

Independent 16-bit voltage ADC for each channel with accuracy less than 2 mV

18-bit ADC current measurement with coulomb counter

Fully synchronized current and voltage samples

Intelligent diagnostic routine providing automatic failure validation. Redundant fault notification through both SPI Global Status Word (GSW) and the dedicated FAULT line

9 GPIOs, with up to 7 analog inputs for NTC sensing

Internal passive balancing up to 200 mA. Possibility to drive external balancing transistors

2.66 Mbps isolated serial communication or up to 5 MHz SPI

Two 5 V regulators supporting external load connection with 25 mA (VCOM) and 50 mA (VTREF) current capability

Embedded NVM for customer parameters storage

System safety ready

64-pin TQFP package

Applications of L99BM114

48 V and high-voltage battery packs

Backup energy storage systems and UPS

E-bikes, e-scooters

Portable and semi-portable equipment

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.