SLAAED5 june   2023 AFE11612-SEP , INA240-SEP , OPA4H199-SEP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 LDMOS and GaN Power Amplifier FET PA Basics
  5. 2 VGS Compensation
  6. 3 Sequencing
  7. 4 An Integrated PA Biasing Solution
  8. 5 Negative GaN Biasing
  9. 6 VDRAIN Switching Circuit
  10. 7 Controlled Gate Sequencing Circuit
  11. 8 VDRAIN Monitoring
  12. 9 IDQ Monitoring
  13. 10External Negative Power Supply Monitoring
  14. 11PA Temperature Monitoring
  15. 12Summary
  16. 13References

11 PA Temperature Monitoring

The AFE11612-SEP has two sets of remote temperature sensor inputs that can be used to monitor the temperature of two diode-connected transistors placed near the PAs. The two temperature sensors have programmable alarm thresholds that can trigger an alarm state and disable the PA_ON.

GUID-20230612-SS0I-WJCC-TPBS-QMBFMNDXDVDK-low.svg Figure 11-1 Remote Temperature Circuit