SLVAFY5 May   2025 TPS1685 , TPS1689 , TPS25984 , TPS25985

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Challenges for Stackable and Parallel Operation of eFuse
  6. 3Techniques for Current Distribution in eFuse
    1. 3.1 Parallel Operation with Individual eFuse Over Current Limit
    2. 3.2 Parallel Operation with Total System Over Current Limit
    3. 3.3 Parallel Operation with Active Current Sharing (ACS)
  7. 4Summary
  8. 5References

4 Summary

Parallel eFuse configuration also helps system designers do better thermal management as the power loss is spread across multiple devices. In this application note, four TPS1685 devices and six TPS1685 devices parallel operations with Active Current Sharing (ACS) are described to meet 80A and 100A current distribution and protection. However, the approach can be easily extended for other current levels.