13-15S pack building IC needed

Hello Anandan,

You can check our industrial monitor catalog here: https://www.ti.com/power-management/battery-management/monitors-balancers/products.html#p404=Monitoring%20(Analog%20Front-End)&p1498=Catalog 

The BQ76940 offers up-to 15s monitoring and low-side drive. The BQ76952 offers up-to 16s monitoring and high-side drive. 

If using higher than 16s, it is possible to stack some of our monitors with some additional circuitry (as stacking is not directly integrated in the monitors). You can see some stacking implementations in our reference designs.

We have a reference design for up-to 20s cells using the BQ76930 (same family as BQ76940) in a stacked configuration, the TIDA-01093. In stacked designs communication lines must be level shifted or isolated in order to communicate with an MCU/companion gauge. The reference design uses an isolator for I2C communication.

If you desire devices with integrated stacking options, you can also look into our automotive-rated devices here: https://www.ti.com/power-management/battery-management/monitors-balancers/products.html#p2192=Stackable%20(built-in%20interface)&p1498=Automotive 

I hope this was informative, and best of luck in your design!

Best Regards,

Luis Hernandez Salomon