SPICE Device Model Si1058X Vishay Siliconix N-Channel 20-V (D-S) 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 4.5-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: 74200 1 S-62686Rev. A, 01-Jan-07 www.vishay.com
SPICE Device Model Si1058X Vishay Siliconix
SPECIFICATIONS (TJ = 25°C UNLESS OTHERWISE NOTED) Parameter Static
Gate Threshold Voltage On-State Drain Current
a
Symbol
Test Condition
Simulated Data
1.1 34 0.079 0.115 4.7 0.71
Measured Data
Unit
VGS(th) ID(on) rDS(on) gfs VSD
VDS = VGS, ID = 250 µA VDS = 5 V, VGS = 4.5 V VGS = 4.5 V, ID = 1.3 A VGS = 2.5 V, ID = 1.1 A VDS = 10 V, ID = 1.3A IS = 1 A
V A 0.076 0.103 5.5 0.80 Ω S V
Drain-Source On-State Resistancea Forward Transconductancea Forward Voltagea
b
Dynamic
Input Capacitance Output Capacitance Reverse Transfer Capacitance Total Gate Charge Gate-Source Charge Gate-Drain Charge
Ciss Coss Crss Qg Qgs Qgd VDS = 10 V, VGS = 5 V, ID = 1.3 A VDS = 10 V, VGS = 0 V, f = 1 MHz
471 65 30 3.4 3.1 VDS = 10 V, VGS = 4.5 V, ID = 1.3 A 0.82 0.61
380 75 45 3.9 3.51 0.82 0.61 nC pF
Notes a. Pulse test; pulse width ≤ 300 µs, duty cycle ≤ 2%. b. Guaranteed by design, not subject to production testing.
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Document Number: 74200 S-62686Rev. A, 01-Jan-07
SPICE Device Model Si1058X Vishay Siliconix
COMPARISON OF MODEL WITH MEASURED DATA (TJ=25°C UNLESS OTHERWISE NOTED)
Document Number: 74200 S-62686Rev. A, 01-Jan-07
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