This document summarizes the device modeling report for a power MOSFET and includes:
1) Component details such as the part number, manufacturer, and remarks on the MOSFET and body diode models.
2) Summaries of simulations and comparisons to measurement data for key MOSFET parameters and characteristics including transconductance, Vgs-Id, switching time, and more.
3) Summaries of simulations and comparisons to measurement data for the body diode's forward current, reverse recovery, and zener voltage characteristics.
4) References and example circuits used in the simulations.
SPICE MODEL of 2SJ438 (Standard+BDS Model) in SPICE PARK
1. Device Modeling Report
COMPONENTS: Power MOSFET (Model Parameter)
PART NUMBER: 2SJ438
MANUFACTURER: TOSHIBA
REMARK: P Channel Model
Body Diode(Model Parameter) / ESD Protection Diode
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005
2. MOSFET MODEL
Pspice model
Model description
parameter
LEVEL
L Channel Length
W Channel Width
KP Transconductance
RS Source Ohmic Resistance
RD Ohmic Drain Resistance
VTO Zero-bias Threshold Voltage
RDS Drain-Source Shunt Resistance
TOX Gate Oxide Thickness
CGSO Zero-bias Gate-Source Capacitance
CGDO Zero-bias Gate-Drain Capacitance
CBD Zero-bias Bulk-Drain Junction Capacitance
MJ Bulk Junction Grading Coefficient
PB Bulk Junction Potential
FC Bulk Junction Forward-bias Capacitance Coefficient
RG Gate Ohmic Resistance
IS Bulk Junction Saturation Current
N Bulk Junction Emission Coefficient
RB Bulk Series Resistance
PHI Surface Inversion Potential
GAMMA Body-effect Parameter
DELTA Width effect on Threshold Voltage
ETA Static Feedback on Threshold Voltage
THETA Modility Modulation
KAPPA Saturation Field Factor
VMAX Maximum Drift Velocity of Carriers
XJ Metallurgical Junction Depth
UO Surface Mobility
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005
14. Reverse Recovery Characteristic Reference
Trj=44(ns)
Trb=72(ns)
Conditions:Ifwd=lrev=0.2(A),Rl=50
Example
Relation between trj and trb
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005
15. ESD PROTECTION DIODE SPICE MODEL
Zener Voltage Characteristic
Circuit Simulation Result
-10mA
-9mA
-8mA
-7mA
-6mA
-5mA
-4mA
-3mA
-2mA
-1mA
0A
0V -5V -10V -15V -20V -25V -30V -35V -40V -45V
I(R1)
V_V1
Evaluation Circuit
R1
0.01m
Open
V1
0Vdc Ropen
Open 10G
U21 0
0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005