Specifically designed for Automotive applications, this HEXFET® Power
MOSFET utilizes the latest processing techniques to achieve extremely
low on-resistance per silicon area. Additional features of this product are
a 175°C junction operating temperature, fast switching speed and improved repetitive avalanche rating. These features combine to make this
design an extremely efficient and reliable device for use in Automotive
applications and a wide variety of other applications.
The D-Pak is designed for surface mounting using vapor phase, infrared,
or wave soldering techniques. The straight lead version (IRFU series) is
for through-hole mounting applications. Power dissipation levels up to
1.5 watts are possible in typical surface mount applications.
Absolute Maximum Ratings
ParameterMax.Units
ID @ TC = 25°CContinuous Drain Current, VGS @ 10V (Silicon limited)71
ID @ TC = 100°CContinuous Drain Current, VGS @ 10V (See Fig.9)49A
ID @ TC = 25°CContinuous Drain Current, VGS @ 10V (Package limited)30
I
DM
PD @TC = 25°CPower Dissipation140W
V
GS
E
AS
E
(tested)Single Pulse Avalanche Energy Tested Value410
AS
I
AR
E
AR
dv/dtPeak Diode Recovery dv/dt 4.0V/ns
T
J
T
STG
Pulsed Drain Current 280
Linear Derating Factor0.92W/°C
Gate-to-Source Voltage ± 20V
Single Pulse Avalanche Energy210mJ
Allowed avalanche Current v s
avalanche pulsewidth, tav
assuming ∆Tj = 25°C due to
avalanche losses . Note: In no
case should Tj be allowed to
exceed Tjmax
tav (sec)
Fig 15. Typical Avalanche Current Vs.Pulsewidth
240
TOP Single Puls e
200
)
J
m
(
y
g
160
r
e
n
E
e
120
h
c
n
a
l
a
v
80
A
,
R
A
E
40
0
255075100125150175
BOTTOM 10% Duty Cycle
ID = 30A
Starting TJ , Junc tion Temperature (°C)
Notes on Repetitive Avalanche Curves , Figures 15, 16:
(For further info, see AN-1005 at www.irf.com)
1. Avalanche failures assumption:
Purely a thermal phenomenon and failure occurs at a
temperature far in excess of T
every part type.
. This is validated for
jmax
2. Safe operation in Avalanche is allowed as long asT
not exceeded.
3. Equation below based on circuit and waveforms shown in
Figures 12a, 12b.
4. P
avalanche pulse.
= Average power dissipation per single
D (ave)
5. BV = Rated breakdown voltage (1.3 factor accounts for
voltage increase during avalanche).
6. I
= Allowable avalanche current.
av
7. ∆T = Allowable rise in junction temperature, not to exceed
T
(assumed as 25°C in Figure 15, 16).
jmax
t
Average time in avalanche.
av =
D = Duty cycle in avalanche = t
Z
(D, tav) = Transient thermal resistance, see figure 11)
thJC
av
·f
jmax
is
P
= 1/2 ( 1.3·BV·Iav) = DT/ Z
Fig 16. Maximum Avalanche Energy
Vs. Temperature
D (ave)
I
2DT/ [1.3·BV·Zth]
av =
E
= P
AS (AR)
D (ave)·tav
thJC
www.irf.com7
Page 8
IRFR/U3505
+
-
+
-
Reverse
Recovery
Current
Driver Gate Drive
P.W.
D.U.T. ISDWaveform
D.U.T. VDSWaveform
D.U.T
+
-
+
Circuit Layout Considerations
• Low Stray Inductance
• Ground Plane
-
• Low Leakage Inductance
Current Transformer
-
+
V
DD
R
G
• dv/dt controlled by R
• Driver same type as D.U.T.
• ISD controlled by Duty Factor "D"
• D.U.T. - Device Under Test
G
Re-Applied
Voltage
Inductor Curent
* V
GS
Period
Body Diode Forward
Current
di/dt
Diode Recovery
dv/dt
Body Diode Forward Drop
Ripple ≤ 5%
= 5V for Logic Level Devices
D =
P. W .
Period
VGS=10V
V
DD
I
SD
*
Fig 17. Peak Diode Recovery dv/dt Test Circuit for N-Channel
HEXFET® Power MOSFETs
R
D.U.T.
D
V
DD
V
DS
V
GS
R
G
10V
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
Fig 18a. Switching Time Test Circuit
V
DS
90%
10%
V
GS
t
d(on)tr
t
d(off)tf
Fig 18b. Switching Time Waveforms
8www.irf.com
Page 9
D-Pak (TO-252AA) Package Outline
Dimensions are shown in millimeters (inches)
IRFR/U3505
5.46 (.215 )
5.21 (.205 )
1.02 (.040)
1.64 (.025)
1.52 (.060)
1.15 (.045)
1.14 (.045)
2X
0.76 (.030)
2.28 (.090)
6.73 (.265)
6.35 (.250)
- A -
4
1 2 3
1.27 (.050 )
0.88 (.035 )
6.22 (.245)
5.97 (.235)
- B -
0.89 (.035)
3X
0.64 (.025)
0.25 (.010) M A M B
4.57 (.180)
2.38 (.094)
2.19 (.086)
10.42 (.410)
9.40 (.37 0)
NOTES:
1 DIMENSIONING & TOLERANCING PER ANSI Y14.5M, 1982.
2 CONTROLLING DIMENSION : INCH.
3 CONFORMS TO JE DEC OU TLINE TO- 252AA.
4 DIMENSIONS SHOWN ARE BEFORE SOLDER DIP,
SOLD ER DIP MAX. +0. 16 (.0 06).
1.14 (.045)
0.89 (.035)
0.58 (.02 3)
0.46 (.01 8)
6.45 (.245)
5.68 (.224)
0.51 (.02 0)
MIN.
0.58 (.023)
0.46 (.018)
LEAD ASSIGNMENTS
1 - GAT E
2 - DRAIN
3 - SOURCE
4 - DRAIN
D-Pak (TO-252AA) Part Marking Information
www.irf.com9
Page 10
IRFR/U3505
I-Pak (TO-251AA) Package Outline
Dimensions are shown in millimeters (inches)
5.46 (.215)
5.21 (.205)
1.52 (.060)
1.15 (.045)
- B -
2.28 (.090)
1.91 (.075)
1.14 (.045)
3X
0.76 (.030)
2.28 (.090)
6.73 (.265)
6.35 (.250)
- A -
4
1 2 3
3X
2X
1.27 (.050)
0.88 (.035)
6.22 (.245)
5.97 (.235)
9.65 (.380)
8.89 (.350)
0.89 (.035)
0.64 (.025)
0.25 (.010) M A M B
2.38 (.094)
2.19 (.086)
0.58 (.023)
0.46 (.018)
6.45 (.245)
5.68 (.224)
NOTES:
1 DIMENSIONING & TOLERANCING PER ANSI Y14.5M, 1982.
2 CONTROLLING DIMENSION : INCH.
3 C ONFORMS TO J EDEC OUTLINE TO-252AA.
4 D IMENSIONS SHOW N ARE BEF ORE SOLDER DIP,
SOLDER DIP MAX. +0.16 (.006).
1.14 (.045)
0.89 (.035)
0.58 (.023)
0.46 (.018)
I-Pak (TO-251AA) Part Marking Information
LEAD ASSIGNMENTS
1 - GATE
2 - DRAIN
3 - SOURCE
4 - DRAIN
10www.irf.com
Page 11
D-Pak (TO-252AA) Tape & Reel Information
Dimensions are shown in millimeters (inches)
TR
TRR
IRFR/U3505
TRL
12.1 ( .476 )
11.9 ( .469 )
NOTES :
1. CONTROLLING DIMENSION : MILLIMETER.
2. ALL DIMENSIONS ARE SHOWN IN MILLIMETERS ( INCHES ).
3. OUTLINE CONFORMS TO EIA-481 & EIA-541.
13 INCH
NOTES :
1. OUTLINE CONFORMS TO EIA-481.
Notes:
Repetitive rating; pulse width limited by
max. junction temperature. (See fig. 11).
Limited by T
RG = 25Ω, I
, starting TJ = 25°C, L = 0.47mH
Jmax
= 30A, VGS =10V. Part not
AS
recommended for use above this value.
I
≤ 30A, di/dt ≤ 300A/µs, V
SD
DD
≤ V
(BR)DSS
TJ ≤ 175°C
Pulse width ≤ 1.0ms; duty cycle ≤ 2%.
16.3 ( .641 )
15.7 ( .619 )
FEED DIRECTION
C
as C
Limited by T
avalanche performance.
This value determined from sample failure population. 100%
,
tested to this value in production.
When mounted on 1" square PCB (FR-4 or G-10 Material) .
For recommended footprint and soldering techniques refer to
application note #AN-994
16.3 ( .641 )
15.7 ( .619 )
8.1 ( .318 )
7.9 ( .312 )
16 mm
eff. is a fixed capacitance that gives the same charging time
oss
oss
while V
is rising from 0 to 80% V
DS
, see Fig.12a, 12b, 15, 16 for typical repetitive
Jmax
FEED DIRECTION
DSS
.
Data and specifications subject to change without notice.
This product has been designed and qualified for the Automotive [Q101]market.
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. 12/02
www.irf.com11
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