Vishay Siliconix

SPICE Device Model Si4724CY

CONCLUSIONS

The model of the SI4724CY driver correlates very well with the

manufacturer’s datasheet and meets all of the items listed in the

Statement of Work (SOW). This data should be verified against

actual hardware for further confirmation.

The output voltage (1.4 V) is somewhat less than the 1.6 V that should

be achieved with an input pulse width of 545us (0.545u/4u). The

reason for this is unknown.

modeled but could be added.

The reader is referred to three references on this topic.

1.

“Power Requirements for Power MOSFET Models”, I Budihardjo, Peter Lauritzen, A. Mantooth, IEEE Transactions on Power

Electronics, Vol 12, No. 1, Jan 1997

2.

“An Improved Mosfet Spice Model, Supports the development of Low Dropout Voltage Regulators”, Steven M. Sandler, EDATools

Café & Internal AEi White Paper, www.edatoolscafe.com/DACafe/TECHNICAL/ Papers/Mosfet_paper.htm

3.

“SPICE Model for TMOS”, C.E. Cordonnier, Motorola Application Note, AN1043, 1989.

7

Document Number: 72365

S-50464

Rev. B, 14-Mar-05

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