WFF840B
Silicon N-Channel MOSFET
Features
�
9A,500V, RDS(on)(Max0.75Ω)@VGS=10V
�
Ultra-low Gate charge(Typical 28nC)
�
Fast Switching Capability
�
100%Avalanche Tested
�
Maximum Junction Temperature Range(150℃)
General Description
This Power MOSFET is produced using Winsemi’s advanced
planar stripe, DMOS technology. This latest technology has been
especially designed to minimize on-state resistance, have a high
rugged avalanche characteristics. This devices is specially well
suited for high efficiency switch model power supplies, power
factor correction and half bridge and full bridge resonant topology
line a electronic lamp ballast.
Absolute Maximum Ratings
Symbol
VDSS
Parameter
Value
Units
500
V
Continuous Drain Current(@Tc=25℃)
9*
A
Continuous Drain Current(@Tc=100℃)
5.4*
A
36*
A
±30
V
Drain Source Voltage
ID
IDM
Drain Current Pulsed
(Note1)
VGS
Gate to Source Voltage
EAS
Single Pulsed Avalanche Energy
(Note2)
360
mJ
EAR
Repetitive Avalanche Energy
(Note1)
13.5
mJ
dv/dt
Peak Diode Recovery dv /dt
(Note3)
4.5
V/ ns
Total Power Dissipation(@Tc=25℃)
135
W
Derating Factor above 25℃
1.07
W/℃
-55~150
℃
300
℃
PD
TJ,Tstg
TL
Junction and Storage Temperature
Channel Temperature
*Drain current limited by maximum junction temperature
Thermal Characteristics
Symbol
Value
Parameter
Min
Typ
Max
Units
RQJC
Thermal Resistance , Junction -to -Case
-
-
0.93
℃/W
RQCS
Thermal Resistance , Case-to-Sink
-
0.5
-
℃/W
RQJA
Thermal Resistance , Junction-to -Ambient
-
-
62.5
℃/W
Rev.A Jul.2011
Copyright@WinSemi
Co., Ltd., All right reserved.
WFF840B
Electrical Characteristics(Tc=25℃)
Characteristics
Symbol
Gate leakage current
Gate-source breakdown voltage
Test Condition
Min
Type
Max
Unit
IGSS
VGS=±30V,VDS=0V
-
-
±100
nA
V(BR)GSS
IG=±10 µA,VDS=0V
±30
-
-
V
VDS=500V,VGS=0V
-
-
1
µA
10
µA
Drain cut -off current
IDSS
VDS=400V,TC=125℃
Drain -source breakdown voltage
V(BR)DSS
Breakdown voltage Temperature
△BVDSS/
ID=250 µA,VGS=0V
500
-
-
V
-
0.57
-
V/℃
ID=250µA,Referenced
Coefficient
△TJ
to 25℃
Gate threshold voltage
VGS(th)
VDS=VGS,ID=250 µA
3
-
5
V
Drain -source ON resistance
RDS(ON)
VGS=10V,ID=4.5A
-
-
0.75
Ω
Forward Transconductance
gfs
VDS=40V,ID=4.5A
-
6.5
-
S
Input capacitance
Ciss
VDS=25V,
-
790
1030
Reverse transfer capacitance
Crss
VGS=0V,
-
24
30
Output capacitance
Coss
f=1MHz
-
130
170
VDD=250V,
-
65
140
ID=9A
-
18
15
RG=25Ω
-
64
125
-
93
195
-
28
35
-
4
-
-
15
-
Min
Type
Max
Unit
Rise time
tr
Turn-on time
ton
Switching time
pF
ns
Fall time
tf
Turn-off time
(Note4,5)
toff
Total gate charge(gate-source
VDD=400V,
Qg
plus gate-drain)
VGS=10V,
nC
Gate-source charge
Qgs
Gate-drain("miller") Charge
Qgd
ID=9A
(Note4,5)
Source-Drain Ratings and Characteristics(Ta=25℃)
Characteristics
Symbol
Test Condition
Continuous drain reverse current
IDR
-
-
-
9
A
Pulse drain reverse current
IDRP
-
-
-
36
A
Forward voltage(diode)
VDSF
IDR=9A,VGS=0V
-
-
1.4
V
Reverse recovery time
trr
IDR=9A,VGS=0V,
-
335
-
ns
Reverse recovery charge
Qrr
dIDR / dt =100 A / µs
-
2.95
-
µC
Note 1.Repeativity rating :pulse width limited by junction temperature
2.L=8mH IAS=9A,VDD=50V,RG=25Ω,Starting TJ=25℃
3.ISD≤9A,di/dt≤200A/us,VDD<BVDSS,STARTING TJ=25℃
4.Pulse Test:Pulse Width≤300us,Duty Cycle≤2%
5. Essentially independent of operating temperature.
This transistor is an electrostatic sensitive device
Please handle with caution
2/7
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WFF840B
Fig.1 On State Characteristics
Fig.3 On-Resistance Variation vs
Drain Current And Gate Voltage
Fig.5 Capacitance Characteristis
Fig.2 Transfer Characteristics
Fig.4 Body Diode Forward Voltage
Variation with Source Current
and Temperature
Fig.6 Gate Charge Characteristics
3/7
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WFF840B
Fig.7 Breakdown Voltage Variation
Vs Temperature
Fig.9 Maximum Safe Operation Area
Fig.8 On-Resistance Variation
vs.Temperature
Fig.10 Maximum Drain Current
vs Case temperature
Fig.11 Transient thermal Response Curve
4/7
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WFF840B
Fig.12 Gate Test circuit & Waveform
Fig.13 Resistive Switching Test Circuit & Waveform
Fig.14 Unclamped Inductive Switching Test Circuit & Waveform
5/7
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WFF840B
Fig.15 Peak Diode Recovery dv/dt Test Circuit & Waveform
6/7
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WFF840B
TO-220
F Package Dimension
TO-220F
Unit:mm
7/7
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