SBAA702 July   2025 AFE8108 , AFE8190

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Fast Bring-up on AFE81xx
  6. 3 Fast Bring-up Sequence
  7. 4 Input Parameter Constraint
  8. 5 Calibration Memory
  9. 6 Fuse Blow Requirement
  10. 7 Drifts and Aging
  11. 8 Device Bring-up Time
  12. 9 Summary
  13. 10References

6 Fuse Blow Requirement

For the one-time fuse blow, the Vpp supply (device pin V17) needs to go to 1.8V. By default, this has to be 0V. A switch circuit is required to control this voltage as shown in Figure 6-1. The select (SEL) signal is generated by the AFE81xx on a GPIO pin when the 1.8V has to be enabled. Apart from this, no additional sequence is required to perform the fuse blow. The device library takes care of the same.

Fuse Blow Circuit Figure 6-1 Fuse Blow Circuit