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BMS SOLUTIONS

Battery Management Solutions

Based on our battery management products, we provide customers with competitive solutions in the fields of two-wheeled vehicles, outdoor power supplies, energy storage, etc.

We can provide the battery performance test solutions, which can customize battery models, management algorithms and strategies according to the battery types and models provided by customers, combined with application scenarios.

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48V two-wheeler intelligent battery management system

NMOS: MSxxNxxSeries

PMOS:  MSxxPxxSeries

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 TVS TP Series

  • Support 16s battery packs;

  • Supports multiple status detection: battery pack current, battery pack voltage, battery cell voltage, and battery pack temperature etc;

  • Perfect protection function: overshoot and overdischarge protection, pre-charge and pre-discharge function, charge and discharge overcurrent protection, temperature protection

  • The chip supports 100mA balanced current; Multiple communication modes:CAN、RS485、Bluetooth

  •  Support mobile APP Bluetooth communication data interaction: SOC detection, battery voltage detection

  •  Support SOC and SOH calculation


Ternary lithium battery                                                                                                      LFP
Number of cellsPack voltage(V)charge voltage(V)Number of cellsPack voltage(V)charge voltage(V)Support current(A)
1657.667.2324857.660、80、120



Overcharge ProtectionOverdischarge protectionOvercurrent Protection
Protection voltage

Ternary lithium:4.25±0.03V

LFP:3.75±0.05V

Ternary lithium:2.80±0.1V

LFP:2.50±0.1V

short-circuit protectionModel dependentOvercurrent ProtectionModel dependent
Protection delay2s2sTime of duration400~800μsTime of duration10s
Recovery voltage

Ternary lithium:4.15±0.05V

LFP:3.60±0.05V

Ternary lithium:3.0±0.01V

LFP:Charge recovery

Recovery conditionDisconnect the load and restore it after 5SRecovery conditionAutomatic recovery after 20s delay



 Cell equalizationTemperature protectionPower dissipation
Threshold voltage

Ternary lithium battery:4.0±0.03V

LFP:3.5±0.03V

Operating temperature range-30℃/+75℃power dissipation

Operating current:≤20mA

Dormant power consumption:≤200μA

Opening pressure differential15mVDischarge high temperature protection temperature90±5℃
Equalizing current≤100mADischarge high temperature recovery temperature70±5℃




Integrated MCU AFE battery management system scheme

NMOS: MSxxNxxSeries

 PMOS:  MSxxPxxSeries

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16-string, CAN or RS485 communication BMS architecture  32-string, CAN or RS485 communication BMS architecture    32-string, CAN or RS485 communication BMS architecture                                                                        

  • AFE integrates MCU inside, and PACK can complete power calculation and CAN transceiver protocol without setting MCU inside,

    simplifying PCB design and reducing the number of peripheral components.

  • AFE communicate with each other through Daisy chains, and there is no need to isolate communication IC between AFE.



Outdoor power battery management system


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  • Support 16s battery packs,Maximum current 60A;

  • Supports multiple status detection: battery pack current, battery pack voltage, battery cell voltage, and battery pack temperature etc;

  • Perfect protection function: overshoot and overdischarge protection, pre-charge and pre-discharge function, charge and discharge overcurrent protection, temperature protection;

  • The chip supports 100mA balanced current;

  •  Support SOC and SOH calculation.



Battery management solutions for household/commercial energy storage systems

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  • A single battery pack supports a maximum of 16s or 32s of batteries.;

  • Supports multiple status detection: battery pack current, battery pack voltage, battery cell voltage, and battery pack temperature etc;

  • Perfect protection function: overshoot and overdischarge protection, pre-charge and pre-discharge function, charge and discharge overcurrent protection, temperature protection

  • The chip supports 100mA balanced current;

  • Multiple communication modes:CAN、RS485、Bluetooth

  •  Support SOC and SOH calculation。



Battery management solutions for household/commercial energy storage systems

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  • 16s or 32s PACK can be stacked to meet battery system voltage specifications;

  • The capacity of a single PACK can be increased by parallel cells in a PACK, or the capacity of the battery system can be increased by parallel cells in a PACK;

  • ESS Controler can be customized for customers to define energy routing strategies based on battery systems and microgrid critical power conversion devices.



BMS SOLUTIONS

联系我们

QQ:

手机:0086-136 0286 9588

电话: 0086-20-2262-5106

邮箱: tina.dai@lettersemi.com

地址:RM708 Innovation Building,Tian An Technology Park, Ying Bin Road, Panyu Zone, Guangzhou City,China