IRF4905
HEXFET® Power MOSFET
Fifth Generation HEXFETs from International Rectifier
utilize advanced processing techniques to achieve
extremely low on-resistance per silicon area. This
benefit, combined with the fast switching speed and
ruggedized device design that HEXFET Power
MOSFETs are well known for, provides the designer
with an extremely efficient and reliable device for use
in a wide variety of applications.
The TO-220 package is universally preferred for all
commercial-industrial applications at power
dissipation levels to approximately 50 watts. The low
thermal resistance and low package cost of the TO-
220 contribute to its wide acceptance throughout the
industry.
Parameter Max. Units
ID @ TC = 25°C Continuous Drain Current, VGS @ -10V -74
ID @ TC = 100°C Continuous Drain Current, VGS @ -10V -52 A
IDM Pulsed Drain Current -260
PD @TC = 25°C Power Dissipation 200 W
Linear Derating Factor 1.3 W/°C
VGS Gate-to-Source Voltage ± 20 V
EAS Single Pulse Avalanche Energy930 mJ
IAR Avalanche Current-38 A
EAR Repetitive Avalanche Energy20 mJ
dv/dt Peak Diode Recovery dv/dt -5.0 V/ns
TJOperating Junction and -55 to + 175
TSTG Storage Temperature Range
Soldering Temperature, for 10 seconds 300 (1.6mm from case )
°C
Mounting torque, 6-32 or M3 screw 10 lbfin (1.1Nm)
Absolute Maximum Ratings
Parameter Typ. Max. Units
RθJC Junction-to-Case  0.75
RθCS Case-to-Sink, Flat, Greased Surface 0.50  °C/W
RθJA Junction-to-Ambient  62
Thermal Resistance
VDSS = -55V
RDS(on) = 0.02
ID = -74A
T
O
-22
0
AB
lAdvanced Process Technology
lUltra Low On-Resistance
lDynamic dv/dt Rating
l175°C Operating Temperature
lFast Switching
lP-Channel
lFully Avalanche Rated
Description
05/24/07
S
D
G
PD - 91280D
IRF4905
Parameter Min. Typ. Max. Units Conditions
ISContinuous Source Current MOSFET symbol
(Body Diode)   showing the
ISM Pulsed Source Current integral reverse
(Body Diode)   p-n junction diode.
VSD Diode Forward Voltage   -1.6 V TJ = 25°C, IS = -38A, VGS = 0V
trr Reverse Recovery Time  89 130 ns TJ = 25°C, IF = -38A
Qrr Reverse Recovery Charge  230 350 nC di/dt = -100A/µs
ton Forward Turn-On Time Intrinsic turn-on time is negligible (turn-on is dominated by LS+LD)
Parameter Min. Typ. Max. Units Conditions
V(BR)DSS Drain-to-Source Breakdown Voltage -55   V VGS = 0V, ID = -250µA
V(BR)DSS/TJBreakdown Voltage Temp. Coefficient  -0.05  V/°C Reference to 25°C, ID = -1mA
RDS(on) Static Drain-to-Source On-Resistance   0.02 VGS = -10V, ID = -38A
VGS(th) Gate Threshold Voltage -2.0  -4.0 V VDS = VGS, ID = -250µA
gfs Forward Transconductance 21   S VDS = -25V, ID = -38A
  -25 µA VDS = -55V, VGS = 0V
  -250 VDS = -44V, VGS = 0V, TJ = 150°C
Gate-to-Source Forward Leakage   100 VGS = 20V
Gate-to-Source Reverse Leakage   -100 nA VGS = -20V
QgTotal Gate Charge   180 ID = -38A
Qgs Gate-to-Source Charge   32 nC VDS = -44V
Qgd Gate-to-Drain ("Miller") Charge   86 VGS = -10V, See Fig. 6 and 13
td(on) Turn-On Delay Time  18  VDD = -28V
trRise Time  99  ID = -38A
td(off) Turn-Off Delay Time  61  RG = 2.5
tfFall Time  96  RD = 0.72Ω, See Fig. 10
Between lead,
  6mm (0.25in.)
from package
and center of die contact
Ciss Input Capacitance  3400  VGS = 0V
Coss Output Capacitance  1400  pF VDS = -25V
Crss Reverse Transfer Capacitance  640   = 1.0MHz, See Fig. 5
nH
Electrical Characteristics @ TJ = 25°C (unless otherwise specified)
LDInternal Drain Inductance
LSInternal Source Inductance  
IGSS
ns
4.5
7.5
IDSS Drain-to-Source Leakage Current
Repetitive rating; pulse width limited by
max. junction temperature. ( See fig. 11 )
ISD -38A, di/dt -270A/µs, VDD V(BR)DSS,
TJ 175°C
Notes:
Starting TJ = 25°C, L = 1.3mH
RG = 25, IAS = -38A. (See Figure 12)
Pulse width 300µs; duty cycle 2%.
S
D
G
Source-Drain Ratings and Characteristics
A
S
D
G
-74
-260
IRF4905
Fig 4. Normalized On-Resistance
Vs. Temperature
Fig 1. Typical Output Characteristics
Fig 3. Typical Transfer Characteristics
1
10
100
1000
0.1 1 10 100
D
DS
20µs PULSE WIDTH
T = 25°C
c
A
-I , Drain-to-Source Current (A)
-V , Drain-to-Source Voltage (V)
VGS
TOP - 15V
- 10V
- 8.0V
- 7.0V
- 6.0V
- 5.5V
- 5.0V
BOT TOM - 4. 5V
-4.5V
1
10
100
1000
0.1 1 10 100
D
DS
A
-I , Drain-to-Source Current (A)
-V , Drain-to-Source Voltage (V)
VGS
TOP - 15V
- 10V
- 8.0V
- 7.0V
- 6.0V
- 5.5V
- 5.0V
BOTTOM - 4.5V
-4.5V
20µs PULSE WIDTH
T = 175°C
C
1
10
100
1000
45678910
T = 25°C
J
GS
D
A
-I , Drain-to-Source Current (A)
-V , Gate-to-Source Voltage (V)
V = -25V
20µs PULSE WIDTH
DS
T = 175°C
J
0.0
0.5
1.0
1.5
2.0
-60 -40 -20 0 20 40 60 80 100 120 140 160 180
J
T , Junction Temperature (°C)
R , Drain-to-Source On Resistance
DS(on)
(Normalized)
A
V = -10V
GS
I = -64A
D
Fig 2. Typical Output Characteristics
IRF4905
Fig 8. Maximum Safe Operating Area
Fig 6. Typical Gate Charge Vs.
Gate-to-Source Voltage
Fig 5. Typical Capacitance Vs.
Drain-to-Source Voltage
Fig 7. Typical Source-Drain Diode
Forward Voltage
0
1000
2000
3000
4000
5000
6000
7000
1 10 100
C, Capacitance (pF)
A
DS
-V , Drain-to-Source Voltage (V)
V = 0V, f = 1MHz
C = C + C , C SHORTED
C = C
C = C + C
GS
iss gs gd ds
rss gd
oss ds gd
C
iss
C
oss
C
rss
0
4
8
12
16
20
0 40 80 120 160 200
G
GS
A
-V , Gate-to-Source Voltage (V)
Q , Total Gate Charge (nC)
FOR TEST CIRCUIT
SEE FIGURE 13
I = -38A
V = -44V
V = -28V
D
DS
DS
1
10
100
1000
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
T = 25°C
J
V = 0V
GS
SD
SD
A
-I , Reverse Drain Current (A)
-V , Source-to-Drain Voltage (V)
T = 175°C
J
1
10
100
1000
1 10 100
OPERATION IN THIS AREA LIMITED
BY R
DS(on)
10ms
-I , Drain Current (A)
-V , Drain-to-Source Voltage (V)
DS
D
100µs
1ms
T = 25°C
T = 175°C
Single Pulse
C
J
IRF4905
Fig 10a. Switching Time Test Circuit
Fig 10b. Switching Time Waveforms
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig 9. Maximum Drain Current Vs.
Case Temperature
VDS
-10V
Pulse Width 1 µs
Duty Factor 0.1 %
RD
VGS
VDD
RG
D.U.T.
+
-
V
DS
90%
10%
V
GS
t
d(on)
t
r
t
d(off)
t
f
25 50 75 100 125 150 175
0
20
40
60
80
T , Case Temperature ( C)
I , Drain Current (A)
°
C
D
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1 2
JDM thJC C
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
Thermal Response (Z )
1
thJC
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
IRF4905
Fig 13b. Gate Charge Test Circuit
Fig 13a. Basic Gate Charge Waveform
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
Q
G
Q
GS
Q
GD
V
G
Charge
-10V
D.U.T. VDS
ID
IG
-3mA
VGS
.3µF
50K
.2µF
12V
Current Regulator
Same Type as D.U.T.
Current Sampling Resistors
+
-
Fig 12b. Unclamped Inductive Waveforms
Fig 12a. Unclamped Inductive Test Circuit
tp
V
(
BR
)
DSS
I
AS
R
G
I
AS
0.01
t
p
D.U.T
L
V
DS
V
DD
DRIVER
A
15V
-20V
0
500
1000
1500
2000
2500
25 50 75 100 125 150 175
J
E , Single Pulse Avalanche Energy (mJ)
AS
A
Starting T , Junction Temperature (°C)
I
TOP -16A
-27A
BOTTOM -38A
D
IRF4905
Peak Diode Recovery dv/dt Test Circuit
P.W. Period
di/dt
Diode Recovery
dv/dt
Ripple 5%
Body Diode Forward Drop
Re-Applied
Voltage
Reverse
Recovery
Current
Body Diode Forward
Current
V
GS
=10V
V
DD
I
SD
Driver Gate Drive
D.U.T. I
SD
Waveform
D.U.T. V
DS
Waveform
Inductor Curent
D = P. W .
Period
+
-
+
+
+
-
-
-
RG
VDD
dv/dt controlled by RG
ISD controlled by Duty Factor "D"
D.U.T. - Device Under Test
D.U.T*Circuit Layout Considerations
Low Stray Inductance
Ground Plane
Low Leakage Inductance
Current Transformer
* Reverse Polarity of D.U.T for P-Channel
VGS
[ ]
[ ]
*** VGS = 5.0V for Logic Level and 3V Drive Devices
[ ] ***
Fig 14. For P-Channel HEXFETS
IRF4905
TO-220AB Part Marking Information
TO-220AB Package Outline
Dimensions are shown in millimeters (inches)
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Data and specifications subject to change without notice.
Qualification Standards can be found on IR’s Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information. 05/07
Note: For the most current drawing please refer to IR website at http://www.irf.com/package/pkhexfet.html
TO-220AB packages are not recommended for Surface Mount Application.
Note: For the most current drawings please refer to the IR website at:
http://www.irf.com/package/