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| SPICE Device Model SI6901DQ Vishay Siliconix Bi-Directional P-Channel 12-V (D-S) MOSFET CHARACTERISTICS * P-Channel Vertical DMOS * Macro Model (Subcircuit Model) * Level 3 MOS * Apply for both Linear and Switching Application * Accurate over the -55 to 125C Temperature Range * Model the Gate Charge, Transient, and Diode Reverse Recovery Characteristics DESCRIPTION The attached spice model describes the typical electrical characteristics of the p-channel vertical DMOS. The subcircuit model is extracted and optimized over the -55 to 125C temperature ranges under the pulsed 0 to 5V 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: 72915 23-May-04 www.vishay.com 1 SPICE Device Model SI6901DQ Vishay Siliconix SPECIFICATIONS (TJ = 25C UNLESS OTHERWISE NOTED) Parameter Static Gate Threshold Voltage On-State Drain Current b Symbol Test Conditions Simulated Data 0.66 133 0.027 0.034 0.045 21 Measured Data Unit VGS(th) ID(on) VDS = VGS, ID = -250 A VDS = -5 V, VGS = -4.5 V VGS = -4.5 V, ID = -5.4 A V A 0.026 0.034 0.046 30 S Drain-Source On-State Resistanceb rDS(on) VGS = -2.5 V, ID = -4.8 A VGS = -1.8 V, ID = -3.5 A Forward Transconductanceb gfs VDS = -10 V, ID = -5.4 A Dynamic a 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 = - 6 V, RL = 6 ID - 1 A, VGEN = - 4.5 V, RG = 6 VDS = - 6 V, VGS = - 4.5 V, ID = - 5.4 A 64 10.5 34 91 230 354 46 80 10.5 34 110 310 210 270 ns nC Notes a. Guaranteed by design, not subject to production testing. b. Pulse test; pulse width 300 s, duty cycle 2%. www.vishay.com 2 Document Number: 72915 23-May-04 SPICE Device Model SI6901DQ Vishay Siliconix COMPARISON OF MODEL WITH MEASURED DATA (TJ=25C UNLESS OTHERWISE NOTED) Document Number: 72915 23-May-04 www.vishay.com 3 |
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