Avalanche Rugged Technology
Rugged Gate Oxide Technology
Lower Input Capacitance
Improved Gate Charge
Extended Safe Operating Area
Lower Leakage Current : 10 µA (Max.) @ VDS = 400V
Low R
: 0.162 Ω (Typ.)
DS(ON)
Absolute Maximum Ratings
CharacteristicValueUnitsSymbol
Drain-to-Source Voltage
Continuous Drain Current (T
Continuous Drain Current (T
o
=25)
C
=100)
C
C
o
C
Drain Current-Pulsed
Gate-to-Source Voltage
Single Pulsed Avalanche Energy
Avalanche Current
Repetitive Avalanche Energy
Peak Diode Recovery dv/dt
Total Power Dissipation (T
=25)
C
o
C
Linear Derating Factor
Operating Junction and
Storage Temperature Range
Maximum Lead Temp. for Soldering
Purposes, 1/8” from case for 5-seconds
Static Drain-Source
On-State Resistance
Forward Transconductance
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Turn-On Delay Time
Rise Time
Turn-Off Delay Time
Fall Time
Total Gate Charge
Repetitive Rating : Pulse Width Limited by Maximum Junction Temperature
1
O
2
L=15mH, I
O
3
I
O
Pulse Test : Pulse Width = 250 s, Duty Cycle 2%
4
O
Essentially Independent of Operating Temperature
5
O
Continuous Source Current
S
Pulsed-Source Current
Diode Forward Voltage
SD
Reverse Recovery Time
rr
Reverse Recovery Charge
rr
=14.3A, VDD=50V, RG=27 , Starting TJ =25
AS
_
_
<
25A, di/dt320A/ s, VDDBV
SD
<
µ
--
o
C
--
--
484
7.6
o
C
14.3
100
1.5
--
--
A
V
ns
µ
C
--
1
--
O
4
--
O
--
--
Ω
_
<
, Starting TJ =25
DSS
µ
_
<
Integral reverse pn-diode
in the MOSFET
o
T
=25 ,IS=14.3A,VGS=0V
C
J
o
C
T
=25 ,IF=25A
J
/dt=100A/ s
di
F
µ
O
4
Page 3
N-CHANNEL
POWER MOSFET
SSF25N40A
2
10
1
10
0
, Drain Current [A]
10
D
I
-1
10
Fig 1. Output CharacteristicsFig 2. Transfer Characteristics
V
GS
Top : 1 5 V
1 0 V
8.0 V
7.0 V
6.0 V
5.5 V
5.0 V
Bottom : 4.5 V
@ Notes :
1. 250
s Pulse Test
µ
2. T
= 25 oC
C
0
10
VDS , Drain-Source Voltage [V]
0.5
0.4
]
Ω
0.3
V
= 10 V
GS
, [
DS(on)
0.2
R
VGS = 20 V
0.1
Drain-Source On-Resistance
@ Note : TJ = 25 oC
0.0
020406080100
ID , Drain Current [A]
2
10
o
150
25 oC
C
@ Notes :
= 0 V
1. V
GS
2. V
- 55
o
C
3. 250
= 50 V
DS
s Pulse Test
µ
1
10
, Drain Current [A]
D
I
0
1
10
10
246810
VGS , Gate-Source Voltage [V]
Fig 4. Source-Drain Diode Forward VoltageFig 3. On-Resistance vs. Drain Current
2
10
1
10
150 oC
, Reverse Drain Current [A]
DR
0
I
10
25 oC
0.40.60.81.01.21.41.61.82.02.2
, Source-Drain Voltage [V]
V
SD
@ Notes :
1. V
= 0 V
GS
2. 250 µs Pulse Test
5000
C
4000
iss
3000
2000
C
oss
Capacitance [pF]
C
1000
0
10
rss
0
VDS , Drain-Source Voltage [V]
C
= Cgs+ Cgd ( Cds= shorted )
iss
C
= Cds+ C
oss
gd
C
= C
rss
gd
@ Notes :
1. VGS = 0 V
2. f = 1 MHz
1
10
Fig 6. Gate Charge vs. Gate-Source VoltageFig 5. Capacitance vs. Drain-Source Voltage
V
V
DS
= 80 V
DS
= 200 V
10
VDS = 320 V
5
, Gate-Source Voltage [V]
GS
V
0
0306090120150
@ Notes : ID = 25.0 A
QG , Total Gate Charge [nC]
Page 4
SSF25N40A
Fig 7. Breakdown Voltage vs. TemperatureFig 8. On-Resistance vs. Temperature
1.2
1.1
3.0
2.5
2.0
POWER MOSFET
N-CHANNEL
1.0
, (Normalized)
DSS
BV
0.9
Drain-Source Breakdown Voltage
0.8
-75-50-250255075100125150175
@ Notes :
1. V
2. I
TJ , Junction Temperature [oC]
Operation in This Area
2
10
1
10
, Drain Current [A]
0
D
10
I
-1
10
0
10
is Limited by R
@ Notes :
1. T
2. T
3. Single Pulse
= 25 oC
C
= 150 oC
J
1
10
DC
DS(on)
10 ms
1 ms
100
µ
2
10
VDS , Drain-Source Voltage [V]
10 µs
s
= 0 V
GS
= 250 µA
D
, (Normalized)
DS(on)
R
3
10
1.5
1.0
@ Notes :
1. V
= 10 V
0.5
Drain-Source On-Resistance
0.0
-75-50-250255075100125150175
2. I
GS
= 12.5 A
D
TJ , Junction Temperature [oC]
Fig 10. Max. Drain Current vs. Case TemperatureFig 9. Max. Safe Operating Area
15
12
9
6
, Drain Current [A]
D
I
3
0
255075100125150
Tc , Case Temperature [oC]
0
10
D=0.5
0.2
0.1
-1
10
0.05
0.02
0.01
(t) , Thermal Response
JC
θ
Z
-2
10
-5
10
single pulse
-4
10
t1 , Square Wave Pulse Duration [sec]
Fig 11. Thermal Response
@ Notes :
1. Z
2. Duty Factor, D=t
3. TJM-TC=PDM*Z
P
DM
-3
10
-2
10
-1
10
(t)=1.25 oC/W Max.
JC
θ
JC
θ
t
1
t
2
0
10
(t)
1/t2
1
10
Page 5
N-CHANNEL
POWER MOSFET
SSF25N40A
Fig 12. Gate Charge Test Circuit & Waveform
10V
“ Current Regulator
200nF12V
3mA
Current Sampling (IG)
V
V
in
R
G
50KΩ
V
out
”
Same Type
V
GS
as DUT
300nF
V
GS
10V
DS
Q
DUT
R
1
Resistor
Fig 13. Resistive Switching Test Circuit & Waveforms
DUT
R
2
Current Sampling (ID)
Resistor
R
L
V
DD
( 0.5 rated V
V
out
90%
)
DS
10%
V
in
gs
t
d(on)tr
Q
g
Q
gd
Charge
t
d(off)
t
t
on
f
t
off
Vary tp to obtain
required peak I
10V
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
BV
L
DUT
L
BV
I
D
C
V
DD
DSS
I
AS
V
DD
V
DS
D
R
G
t
p
E
=LL I
AS
----
1
2
2
AS
(t)
I
D
t
p
DSS
-------------------BV
-- V
DSS
DD
Time
V
(t)
DS
Page 6
SSF25N40A
Fig 15. Peak Diode Recovery dv/dt Test Circuit & Waveforms
N-CHANNEL
POWER MOSFET
V
V
GS
( Driver )
DUT
+
V
DS
--
I
S
L
V
GS
GS
Driver
R
G
D =
Same Type
as DUT
• dv/dt controlled by “RG”
• I
controlled by Duty Factor “D”
S
Gate Pulse Width
-------------------------Gate Pulse Period
V
DD
10V
I
S
( DUT )
V
DS
( DUT )
IFM , Body Diode Forward Current
I
RM
Body Diode Reverse Current
Body Diode Recovery dv/dt
V
f
Body Diode
Forward Voltage Drop
di/dt
V
DD
Page 7
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DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROV AL OF FAIRCHILD SEMICONDUCTOR CORPORA TION.
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systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STA TUS DEFINITIONS
Definition of Terms
Datasheet IdentificationProduct StatusDefinition
Advance Information
Preliminary
No Identification Needed
Obsolete
Formative or
In Design
First Production
Full Production
Not In Production
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
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that has been discontinued by Fairchild semiconductor.
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