WF 3168 C Series Battery Stack Monitor and Balancing Module


The WF 3168 from WireFlow is a complete battery monitoring and balancing device that includes a high voltage input multiplexer, ADC and balancing switches  for each battery cell. The module can measure up to 8 series-connected cells with a voltage up to 15V per cell.  

The module measurement circuit is galvanically isolated from the earth ground and provides up to 400 VDC channel-to-earth ground isolation, making the module ideal for accurately monitoring large battery stacks. By using several WF 3168 modules it is possible to monitor every cell in a long string of series-connected cells




    Features

    • Measures up to 8 battery cells in series

    • 8 discharge FETs for passive balancing

    • Stackable architecture

    • Supports multiple battery chemistries,

       such as 12V lead-acid and 3.7V Li-ion

    • Galvanically isolated from earth ground

    • 400 VDC ch-earth, CAT I isolation

    • Also for negative grounding systems






Application Areas

• Battery Backup Systems

• Battery Management System

• Electric and Hybrid Electric Vehicles

• High Power Portable Equipment

• Energy Storage Packs




Specifications
*

Cell Voltage Range........15 V

Accuracy.....................1.2 mV

Scan time (all 8 ch).......10 ms

Balancing current...........1.6 A/ch

Ch - Earth Isolation........400 VDC

* Specifications are preliminary