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MC33771 datasheet & reference design

Question asked by Deepak Bansal on Jan 6, 2017
Latest reply on Jan 9, 2017 by Tomas Vaverka

I have to design a complete Battery Management System for a application with below specs:

1. Pack voltage: 72V (nominal) , 70V-84V range

2. Capacity: 80Ah  (20 cells in series & 25 in parallel,, 20S25P)

3. Cell chemistry: NMC (Lithium , 18650)

4. Cell Voltage: 3.6V(nominal) , 3.5V-4.2V Range

5. Cell capacity: 3.2Ah

6. OverVoltage cut off: 4.2V/cell

7. OverVoltage release: 4.0V/cell

8. Undervoltage cut off: 3.5V/cell (80% DOD)

9. UnderVoltage Release = 3.6V/cell

10. Continuous Current at max load: 80A

11. Peak laod current: 150A for 10 seconds

12. Continuous charging current: 30A

13. Overcurrent in Charge/discharge Protection

14. Short Circuit in Charge/discharge Protection

15. OverVoltage/UnderVoltage Protection

16. Capacity Gauging(SOC/SOH)

17. Digitial Communication: RS485, CAN

 

I have checking MC33771, is there any reference design? I need datasheet for this IC .

 

Thanks & regrads

Deepak Bansal

Design Head

deepak@ezeinnovations.in

deepak.midri@gmail.com

Pinaka Battery Solutions

M: +91-9215611008

 

 

 

 

 

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