SI4724CY_05 Datasheet, PDF (7/8 Pages) Vishay Siliconix – N-Channel Synchronous MOSFETs

SPICE Device Model Si4724CY
Vishay Siliconix
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.
The variation of the V_ref and logic input voltage levels with V_DD are not
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.
Document Number: 72365
S-50464Rev. B, 14-Mar-05
www.vishay.com
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