Si7386DP-DS

SPICE Device Model Si7386DP
Vishay Siliconix
N-Channel Reduced Qg, 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: 73145
S-52522Rev. A, 12-Dec-05
www.vishay.com
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SPICE Device Model Si7386DP
Vishay Siliconix
SPECIFICATIONS (TJ = 25°C UNLESS OTHERWISE NOTED)
Parameter
Symbol
Test Condition
Simulated
Data
Measured
Data
VGS(th)
VDS = VGS, ID = 250 µA
1.8
ID(on)
VDS ≥ 5 V, VGS = 10 V
768
VGS = 10 V, ID = 19 A
0.0057
0.0058
VGS = 4.5 V, ID = 17 A
0.0077
0.0078
Unit
Static
Gate Threshold Voltage
On-State Drain Current
a
Drain-Source On-State Resistancea
rDS(on)
V
A
Ω
Forward Transconductancea
gfs
VDS = 15 V, ID = 19 A
10
15
S
Forward Voltagea
VSD
IS = 4.1 A, VGS = 0 V
0.82
0.78
V
11.4
11.5
5.8
5.8
3
3
Dynamicb
Total Gate Charge
Qg
Gate-Source Charge
Qgs
Gate-Drain Charge
Qgd
VDS = 15 V, VGS = 4.5 V, ID = 19 A
nC
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: 73145
S-52522Rev. A, 12-Dec-05
SPICE Device Model Si7386DP
Vishay Siliconix
COMPARISON OF MODEL WITH MEASURED DATA (TJ=25°C UNLESS OTHERWISE NOTED)
Document Number: 73145
S-52522Rev. A, 12-Dec-05
www.vishay.com
3
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Document Number: 91000
Revision: 18-Jul-08
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