SNOU143 February   2017 EMB1428Q , EMB1499Q

 

  1.   EM1402 Evaluation Module
    1.     Trademarks
    2. 1 EM1402 Evaluation Module
    3. 2 General Description
      1. 2.1 Key Features
      2. 2.2 Key Electrical Parameters
    4. 3 Theory of Operation
      1. 3.1 Single Board
      2. 3.2 Stacked Systems
    5. 4 Hardware Setup
      1. 4.1 Connectors
        1. 4.1.1 Battery Connector
        2. 4.1.2 Host Interface
        3. 4.1.3 Thermistor Inputs
        4. 4.1.4 External Isolated Balance Source
    6. 5 EM1402EVM Quick Start Guide
      1. 5.1 Before You Begin
      2. 5.2 Hardware Setup
      3. 5.3 Connecting the Evaluation Modules
      4. 5.4 Software
    7. 6 Physical Dimensions
      1. 6.1 Board Dimensions
      2. 6.2 Board Mounting

2 General Description

The Texas Instruments EM1402EVM Battery Management System (BMS) is an evaluation board of the Active Balance chipset for use in large format Lithium-ion batteries that provides monitoring, balancing, and communications. With precise and robust active balancing, the Active Balance BMS is capable of bi-directional power transfer at each cell. Each EM1402EVM can manage 6 to 16 cells (70-V max) for Li-ion battery applications. The EM1402EVM modules can be stacked up to 1300 V. The system provides fast cell balancing, diagnostics, and module to controller communication. Independent protection circuitry is also provided.

The EM1402EVM is equipped with precision measurement and synchronous communication to enable a master controller to perform State of Charge (SOC) and State of Health (SOH) estimation. Highly accurate cell voltages and a fast sampling time for the entire battery pack allows more efficient operation of battery modules and more accurate SOC and SOH calculations. The user will be able to extend the available capacity of the battery and will benefit from longer pack lifetimes versus passive or dissipative balancing systems.

The EM1402EVM is equipped with smart diagnostic systems. These systems monitor fault events such as undervoltage, overvoltage, and overtemperature. The system is also capable of pack temperature and cell temperature sensing. The fault flagging systems help protect the battery module and alert the user of potential problems.