IRFM450
2 www.irf.com
Electrical Characteristics @ Tj = 25°C (Unless Otherwise Specified)
Parameter Min Typ Max Units Test Conditions
BV
DSS
Drain-to-Source Breakdown Voltage 500 — — V V
GS
= 0V, I
D
= 1.0mA
∆BV
DSS
/∆T
J
Temperature Coefficient of Breakdown — 0.68 — V/°C Reference to 25°C, I
D
= 1.0mA
Voltage
R
DS(on)
Static Drain-to-Source On-State — — 0.415 V
GS
= 10V, I
D
= 8.0A
Resistance — — 0.515 V
GS
= 10V, I
D
= 12A
V
GS(th)
Gate Threshold Voltage 2.0 — 4.0 V V
DS
= V
GS
, I
D
= 250µA
g
fs
Forward Transconductance 6.5 — — S ( )V
DS
> 15V, I
DS
= 8.0A ➃
I
DSS
Zero Gate Voltage Drain Current — — 25 V
DS
= 400V ,V
GS
=0V
— — 250 V
DS
= 400V,
V
GS
= 0V, T
J
= 125°C
I
GSS
Gate-to-Source Leakage Forward — — 100 V
GS
= 20V
I
GSS
Gate-to-Source Leakage Reverse — — -100 V
GS
= -20V
Q
g
Total Gate Charge — — 120 V
GS
=10V, I
D
= 12A
Q
gs
Gate-to-Source Charge — — 19 nC V
DS
= 250V
Q
gd
Gate-to-Drain (‘Miller’) Charge — — 70
t
d(on)
Turn-On Delay Time — — 35 V
DD
= 250V, I
D
= 12A,
t
r
Rise Time — — 190 V
GS
=10V, R
G
= 2.35Ω
t
d(off)
Turn-Off Delay Time — — 170
t
f
Fall Time — — 130
L
S
+ L
D
Total Inductance — 6.8 —
C
iss
Input Capacitance — 2700 — V
GS
= 0V, V
DS
= 25V
C
oss
Output Capacitance — 600 — pF f = 1.0MHz
C
rss
Reverse Transfer Capacitance — 240 —
nA
Ω
➃
nH
ns
µA
Note: Corresponding Spice and Saber models are available on the G&S Website.
For footnotes refer to the last page
Thermal Resistance
Parameter Min Typ Max Units Test Conditions
R
thJC
Junction-to-Case — — 0.83
R
thJCS
Case-to-Sink — 0.21 —
R
thJA
Junction-to-Ambient — — 48 Typical socket mount
°C/W
Source-Drain Diode Ratings and Characteristics
Parameter Min Typ Max Units Test Conditions
I
S
Continuous Source Current (Body Diode) — — 12
I
SM
Pulse Source Current (Body Diode) ➀ —— 48
V
SD
Diode Forward Voltage — — 1.7 V T
j
= 25°C, I
S
= 12A, V
GS
= 0V ➃
t
rr
Reverse Recovery Time — — 1600 nS T
j
= 25°C, I
F
= 12A, di/dt ≤ 100A/µs
Q
RR
Reverse Recovery Charge — — 14 µC V
DD
≤ 50V ➃
t
on
Forward Turn-On Time Intrinsic turn-on time is negligible. Turn-on speed is substantially controlled by L
S
+ L
D
.
A
Ω
Measured from drain lead (6mm/0.25in. from
package) to source lead (6mm/0.25in. from package)
