IRF634A
BVDSS = 250 V
RDS(on) = 0.45
ID = 8.1 A
250
8.1
5.1
32
±30
205
8.1
7.4
4.8
74
0.59
- 55 to +150
300
1.69
--
62.5
--
0.5
--
Avalanche Rugged Technol ogy
Rugged Gate Oxide Technology
Lower Input Capacitance
Improved Gate Charge
Extended Safe Operating Area
Lower Leakage Current: 10µA (Max.) @ VDS = 250V
Lower RDS(ON): 0.327 (Typ .)
$GYDQFHG 3RZHU 026)(7
Thermal Resistance
Junction-to-Case
Case-to-Sink
Junction-to-Ambient
RθJC
RθCS
RθJA
°C/W
Characteristic Max. UnitsSymbol Typ.
FEATURES
Absolute Maximum Ratings
Drain- to-Source Vol tage
Conti nuous Drain Current (TC=25°C)
Conti nuous Drain Current (TC=100°C)
Drain Current-Pulsed (1)
Gate-t o-Source Volta ge
Singl e Pulsed Aval anche Energy (2)
Avalanche Current (1)
Repetitive Aval anche Energy (1)
Peak Diode Recovery dv/dt (3)
Total Power Dissipati on (TC=25°C)
Linear Derating Fact or
Operating Junction and
Storage Temperature Range
Maxim um Lead Temp. for Soldering
Purposes, 1/8 from case for 5-seconds
Characteristic Value UnitsSymbol
IDM
VGS
EAS
IAR
EAR
dv/dt
ID
PD
TJ , TSTG
TL
A
V
mJ
A
mJ
V/ns
W
W/°C
A
°C
VDSS V
TO-220
1.Gate 2. Drain 3. Source
3
2
1
©1 999 Fa irchild Semic ond ucto r Corporation
Rev. B
IRF634A
250
--
2.0
--
--
--
--
--
0.29
--
--
--
--
--
110
50
13
14
53
21
30
5.8
13.5
--
--
4.0
100
-100
10
100
0.45
--
950
130
60
40
40
120
50
40
--
--
6.1
730
--
--
--
190
1.28
8.1
32
1.5
--
--
Notes;
(1) Repetitive Rating: Pulse Widt h Limited by Max imum Juncti on Temper ature
(2) L=5mH, IAS=8.1A, VDD=50V, RG=27, S tarti ng TJ =25°C
(3) ISD 8. 1A, di/dt 210A/µs, VDD BVD SS , Starting TJ =25°C
(4) Pulse Test: Puls e Width = 250µs, Duty Cycle 2%
(5) Essential ly Inde pendent of Operating Temperat ure
1&+$11(/
32:(5 026)(7
Electrical Characteristics (TC=25°C unles s otherwise specified)
Drain-Source Breakdown Voltage
Breakdown Voltage Temp. Coeff.
Gate Threshold Voltage
Gate-Source Leakage , Forward
Gate-Source Leakage , Reverse
CharacteristicSymbol Max. UnitsTyp.Min. Test Condition
Static Drai n-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
Gate-Source Charge
Gate-Drain ( Miller ) Charge
gfs
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
BVDSS
BV/TJ
VGS(th)
RDS(on)
IGSS
IDSS
V
V/°C
V
nA
µA
pF
ns
nC
--
--
--
--
--
--
--
--
--
--
--
--
--
VGS=0V,ID=250µA
ID=250µA
See Fig 7
VDS=5V,ID=250µA
VGS=30V
VGS=-30V
VDS=250V
VDS=200V,TC=125°C
VGS=10V,ID=4.05A (4)
VDS=40V,ID=4.05A (4)
VDD=125V,ID=8.1A,
RG=12
See Fig 13
(4) (5)
VDS=200V,VGS=10V,
ID=8.1A
See Fig 6 & Fig 12
(4) (5)
Drain- to-Source Leakage Current
VGS=0V,VDS=25V,f =1M Hz
See Fig 5
Source-Drain Diode Ratings and Characteristics
Continuous Source Current
Pulsed-Source Current (1)
Diode Forwar d Volta ge (4)
Reverse Recovery Time
Reverse Recovery Charge
IS
ISM
VSD
trr
Qrr
CharacteristicSymbol Max. UnitsTyp.M in. Test Condition
--
--
--
--
--
A
V
ns
µC
Integral reverse pn -di ode
in the MOSFET
TJ=25°C,IS=8.1A,VGS=0V
TJ=25°C,IF=8.1A
diF/dt=100A/µs (4)
IRF634A
10-1 100101
10-1
100
101
@ Notes :
1. 250
µs Pulse Test
2. TC = 25 oC
VGS
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
ID
, Drain Current [A]
V
DS , Drain-Source Voltage [V] 246810
10-1
100
101
25
oC
150 oC
- 55 oC
@ Notes :
1. VGS = 0 V
2. VDS = 40 V
3. 250 µs Pulse Test
ID , Drain Current [A]
VGS , Gate-Source Voltage [V]
010203040
0.00
0.25
0.50
0.75
1.00
@ Note : TJ = 25 oC
V
GS = 20 V
V
GS = 10 V
RDS(on) , [ ]
Drain-Source On-Resistance
I
D
, Drain Current [A] 0.20.40.60.81.01.21.41.6
10-1
100
101
150 oC25
oC
@ Notes :
1. VGS = 0 V
2. 250
µ
s Pulse Test
IDR , Reverse Drain Current [A]
VSD , Source-Drain Voltage [V]
100101
0
400
800
1200C
iss= Cgs+ Cgd ( C
ds= shorted
)
C
oss= Cds+ Cgd
C
rss= Cgd
@ Notes :
1. VGS = 0 V
2. f = 1 MHz
C rss
C oss
C iss
Capacitance [pF]
VDS , Drain-Source Voltage [V] 0 5 10 15 20 25 30
0
5
10
V
DS = 200 V
V
DS = 125 V
V
DS = 50 V
@ Notes : ID = 8.1 A
VGS , Gate-Source Voltage [V]
Q
G
, Total Gate Charge [nC]
1&+$11(/
32:(5 026)(7
Fig 1. Output Characteristics Fig 2. Transfer Characteristics
Fig 6. Gate Charge vs. Gate-Source VoltageFig 5. Capacitance vs. Drain-Source Voltage
Fig 4. Source-Drain Diode Forward VoltageFig 3. O n-Resistance vs. Drain Current
IRF634A
-75 -50 -25 0 25 50 75 100 125 150 175
0.8
0.9
1.0
1.1
1.2
@ Notes :
1. VGS = 0 V
2. ID = 250 µA
BVDSS , (Normalized)
Drain-Source Breakdown Voltage
TJ
, Junction Temperature [o
C] -75-50-25 0 25 50 75 100125150175
0.0
0.5
1.0
1.5
2.0
2.5
3.0
@ Notes :
1. VGS = 10 V
2. ID = 4.05 A
RDS(on) , (Normalized)
Drain-Source On-Resistance
TJ
, Junction Temperature [o
C]
100101102
10-2
10-1
100
101
102
100
µs
DC
10 µs
1 ms
10 ms
@ Notes :
1. TC = 25 oC
2. TJ = 150 oC
3. Single Pulse
Operation in This Area
is Limited by R DS(on)
ID , Drain Current [A]
VDS , Drain-Source Voltage [V] 25 50 75 100125150
0
2
4
6
8
10
ID , Drain Current [A]
T
c
, Case Temperature [o
C]
10-5 10-4 10-3 10-2 10-1 100101
10-2
10-1
100
single pulse
0.2
0.1
0.01
0.02
0.05
D=0.5
@ Notes :
1. ZθJC(t)=1.69 oC/W Max.
2. Duty Factor, D=t1/t2
3. TJM-TC=PDM*ZθJC(t)
ZθJC
(t) , Thermal Response
t1 , Square Wave Pulse Durat ion [sec]
1&+$11(/
32:(5 026)(7
Fig 7. Breakdown Voltage vs. Te mperature Fig 8. On-Resistance vs . Temperature
Fig 11. Thermal Response
Fig 10. Max. Drain Curr ent vs. Ca se TemperatureFig 9. Max. Safe Operating Area
PDM
t1t2
IRF634A
1&+$11(/
32:(5 026)(7
Fig 12. Gate Charge Test Circuit & Waveform
Fig 13. Res istive Switchi ng Test Circuit & Wavef orms
Fig 14. Unclamped Inductive Switching Test Circuit & Wa veforms
EAS =L
L IAS2
----
2
1--------------------
BVDSS -- VDD
BVDSS
Vin
Vout
10%
90%
td(on) tr
t on t off
td(off) tf
Charge
VGS
10V
Qg
Qgs Qgd
Vary t
p
to obtain
required peak ID
10V
VDD
C
LL
VDS
ID
RG
t p
DUT
BVDSS
t p
VDD
IAS
VDS (t)
ID (t)
Time
VDD
( 0.5 rated VDS )
10V
Vout
Vin
RL
DUT
RG
3mA
VGS
Current Sa mpling (IG)
Resistor Curren t Sa mpl ing (ID)
Resistor
DUT
VDS
300nF
50k
200nF
12V
Same Type
as DUT
Current Regulator
R1R2
IRF634A
1&+$11(/
32:(5 026)(7
Fig 15. Peak Diode Recovery dv/ dt Tes t Circuit & Waveforms
DUT
VDS
+
--
L
I S
Driver
VGS
RGSame Type
as DUT
VGS dv/dt controlled by RG
IS control led by Duty Factor D
VDD
10V
VGS
( Driver )
I S
( DUT )
VDS
( DUT )
VDD
Body Diode
Forward Voltage Drop
Vf
IFM , Bo dy D iode Forw ard Current
Body Diode Reverse Current
IRM
Body Diode R ecovery dv /dt
di/dt
D = Gate P ul se Width
Gate Pulse Period
--------------------------
TRADEMARKS
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
ISOPLANAR™
MICROWIRE™
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SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
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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.
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Definition of Terms
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Advance Information
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No Identification Needed
Obsolete
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.
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changes at any time without notice in order to improve
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