SLPA021 November   2024 CSD13303W1015 , CSD16301Q2 , CSD16321Q5 , CSD16322Q5 , CSD16323Q3 , CSD16325Q5 , CSD16327Q3 , CSD16340Q3 , CSD16342Q5A , CSD16401Q5 , CSD16403Q5A , CSD16404Q5A , CSD16406Q3 , CSD16407Q5 , CSD16408Q5 , CSD16409Q3 , CSD16410Q5A , CSD16411Q3 , CSD16412Q5A , CSD16413Q5A , CSD16414Q5 , CSD16415Q5 , CSD16556Q5B , CSD17301Q5A , CSD17302Q5A , CSD17303Q5 , CSD17304Q3 , CSD17305Q5A , CSD17306Q5A , CSD17307Q5A , CSD17308Q3 , CSD17309Q3 , CSD17310Q5A , CSD17311Q5 , CSD17312Q5 , CSD17313Q2 , CSD17322Q5A , CSD17327Q5A , CSD17381F4 , CSD17501Q5A , CSD17505Q5A , CSD17506Q5A , CSD17507Q5A , CSD17510Q5A , CSD17522Q5A , CSD17527Q5A , CSD17551Q3A , CSD17551Q5A , CSD17552Q3A , CSD17552Q5A , CSD17553Q5A , CSD17555Q5A , CSD17556Q5B , CSD17559Q5 , CSD18501Q5A , CSD18502KCS , CSD18502Q5B , CSD18503KCS , CSD18503Q5A , CSD18504KCS , CSD18504Q5A , CSD18531Q5A , CSD18532KCS , CSD18532NQ5B , CSD18532Q5B , CSD18533KCS , CSD18533Q5A , CSD18534KCS , CSD18534Q5A , CSD18537NKCS , CSD18537NQ5A , CSD18563Q5A , CSD22202W15 , CSD25211W1015 , CSD25213W10 , CSD75207W15 , CSD86311W1723 , CSD86330Q3D , CSD86350Q5D , CSD86360Q5D , CSD87312Q3E , CSD87330Q3D , CSD87331Q3D , CSD87350Q5D , CSD87351Q5D , CSD87351ZQ5D , CSD87352Q5D , CSD87353Q5D , CSD87381P , CSD87588N

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Review the Data Sheet Limits
  6. 3Application-specific FETs
  7. 4Gate Drive Voltage Specifications
    1. 4.1 Absolute maximum VGS
    2. 4.2 Gate-to-source Threshold Voltage, VGS(th)
  8. 5High-side and Low-side Switches
    1. 5.1 Driving a High-side N-channel FET
    2. 5.2 Driving a Low-side N-channel FET
    3. 5.3 Driving a High-side P-channel FET
  9. 6Use a Gate-to-source Resistor
  10. 7Lowest RDS(on)≠ Lowest Power Loss
  11. 8Summary
  12. 9References

2 Review the Data Sheet Limits

During FET selection, a review of the application and the data sheet is necessary to make sure the device is operating within the data sheet limits. This is especially true for the absolute maximum ratings which define the electrical and thermal limitations of the device. Exceeding the absolute maximum ratings can result in catastrophic failure of the FET. Most engineers derate from the limits in the data sheet to make sure there is enough margin in the design for unexpected events such as voltage spikes, transients, fault conditions, overloads, short circuits and etc. For example, a FET with abs max VDS = 30V is typically derated to 24V maximum operating voltage.