SI7452DP

SPICE Device Model Si7452DP Vishay Siliconix N-Channel 60-V (D-S) Fast Switching MOSFET CHARACTERISTICS • N-Channel Vertical DMOS • Macro Model (Subcircuit Model) • Level 3 MOS • Apply for both Linear and Switching Application • Accurate over the −55 to 125°C Temperature Range • Model the Gate Charge, Transient, and Diode Reverse Recovery Characteristics DESCRIPTION The attached spice model describes the typical electrical characteristics of the n-channel vertical DMOS. The subcircuit model is extracted and optimized over the −55 to 125°C temperature ranges under the pulsed 0-V to 10-V gate drive. The saturated output impedance is best fit at the gate bias near the threshold voltage. A novel gate-to-drain feedback capacitance network is used to model the gate charge characteristics while avoiding convergence difficulties of the switched Cgd model. All model parameter values are optimized to provide a best fit to the measured electrical data and are not intended as an exact physical interpretation of the device. SUBCIRCUIT MODEL SCHEMATIC This document is intended as a SPICE modeling guideline and does not constitute a commercial product data sheet. Designers should refer to the appropriate data sheet of the same number for guaranteed specification limits. Document Number: 72989 S-60145Rev. B, 13-Feb-06 www.vishay.com 1 SPICE Device Model Si7452DP Vishay Siliconix SPECIFICATIONS (TJ = 25°C UNLESS OTHERWISE NOTED) Parameter Static Gate Threshold Voltage On-State Drain Current a Symbol Test Condition Simulated Data 3.7 651 0.0063 57 0.84 Measured Data Unit VGS(th) ID(on) rDS(on) gfs VSD VDS = VGS, ID = 250 µA VDS ≥ 5 V, VGS = 10 V VGS = 10 V, ID = 19.3 A VDS = 15 V, ID = 19.3 A IS = 4.5 A, VGS = 0 V V A 0.007 51 0.80 Ω S V Drain-Source On-State Resistancea Forward Transconductancea Forward Voltagea Dynamicb Total Gate Charge Gate-Source Charge Gate-Drain Charge Turn-On Delay Time Rise Time Turn-Off Delay Time Fall Time Qg Qgs Qgd td(on) tr td(off) tf VDD = 30 V, RL = 30 Ω ID ≅ 1 A, VGEN = 10 V, RG = 6 Ω VDS = 30 V, VGS = 10 V, ID = 19.3 A 112 40 21 65 19 82 26 105 40 21 45 15 90 40 ns nC Notes a. Pulse test; pulse width ≤ 300 µs, duty cycle ≤ 2%. b. Guaranteed by design, not subject to production testing. www.vishay.com 2 Document Number: 72989 S-60145Rev. B, 13-Feb-06 SPICE Device Model Si7452DP Vishay Siliconix COMPARISON OF MODEL WITH MEASURED DATA (TJ=25°C UNLESS OTHERWISE NOTED) Document Number: 72989 S-60145Rev. B, 13-Feb-06 www.vishay.com 3