3/3/04
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1
AUTOMOTIVE MOSFET
PD - 95854
HEXFET
Power MOSFET
V
DSS
= 55V
R
DS(on)
= 8.0m
I
D
= 75A
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 design are a 175C junction operating tempera-
ture, 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.
S
D
G
Description
Features
l
Logic Level
l
Advanced Process Technology
l
Ultra Low On-Resistance
l
175C Operating Temperature
l
Fast Switching
l
Repetitive Avalanche Allowed up to Tjmax
IRL3705Z
IRL3705ZS
IRL3705ZL
D
2
Pak
IRL3705ZS
TO-220AB
IRL3705Z
TO-262
IRL3705ZL
Absolute Maximum Ratings
Parameter
Units
I
D
@ T
C
= 25C Continuous Drain Current, V
GS
@ 10V
(Silicon Limited)
I
D
@ T
C
= 100C Continuous Drain Current, V
GS
@ 10V
A
I
D
@ T
C
= 25C Continuous Drain Current, V
GS
@ 10V
(Package Limited)
I
DM
Pulsed Drain Current
P
D
@T
C
= 25C Power Dissipation
W
Linear Derating Factor
W/C
V
GS
Gate-to-Source Voltage
V
E
AS (Thermally limited)
Single Pulse Avalanche Energy
d
mJ
E
AS
(Tested )
Single Pulse Avalanche Energy Tested Value
h
I
AR
Avalanche Current
A
E
AR
Repetitive Avalanche Energy
g
mJ
T
J
Operating Junction and
T
STG
Storage Temperature Range
C
Soldering Temperature, for 10 seconds
Mounting Torque, 6-32 or M3 screw
i
Thermal Resistance
Parameter
Typ.
Max.
Units
R
JC
Junction-to-Case
1.14
C/W
R
CS
Case-to-Sink, Flat Greased Surface
i
0.50
R
JA
Junction-to-Ambient
i
62
R
JA
Junction-to-Ambient (PCB Mount)
j
40
-55 to + 175
300 (1.6mm from case )
10 lbf
y
in (1.1N
y
m)
130
0.88
16
Max.
86
61
340
75
180
120
See Fig.12a, 12b, 15, 16
IRL3705Z/S/L
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S
D
G
S
D
G
Electrical Characteristics @ T
J
= 25C (unless otherwise specified)
Parameter
Min. Typ. Max. Units
V
(BR)DSS
Drain-to-Source Breakdown Voltage
55
V
V
(BR)DSS
/
T
J
Breakdown Voltage Temp. Coefficient
0.055
V/C
6.5
8.0
R
DS(on)
Static Drain-to-Source On-Resistance
11
m
12
V
GS(th)
Gate Threshold Voltage
1.0
3.0
V
gfs
Forward Transconductance
150
V
I
DSS
Drain-to-Source Leakage Current
20
A
250
I
GSS
Gate-to-Source Forward Leakage
200
nA
Gate-to-Source Reverse Leakage
-200
Q
g
Total Gate Charge
40
60
Q
gs
Gate-to-Source Charge
12
nC
Q
gd
Gate-to-Drain ("Miller") Charge
21
t
d(on)
Turn-On Delay Time
17
t
r
Rise Time
240
ns
t
d(off)
Turn-Off Delay Time
26
t
f
Fall Time
83
L
D
Internal Drain Inductance
4.5
Between lead,
nH
6mm (0.25in.)
L
S
Internal Source Inductance
7.5
from package
and center of die contact
C
iss
Input Capacitance
2880
C
oss
Output Capacitance
420
C
rss
Reverse Transfer Capacitance
220
pF
C
oss
Output Capacitance
1500
C
oss
Output Capacitance
330
C
oss
eff.
Effective Output Capacitance
510
Source-Drain Ratings and Characteristics
Parameter
Min. Typ. Max. Units
I
S
Continuous Source Current
75
(Body Diode)
A
I
SM
Pulsed Source Current
340
(Body Diode)
V
SD
Diode Forward Voltage
1.3
V
t
rr
Reverse Recovery Time
16
24
ns
Q
rr
Reverse Recovery Charge
7.4
11
nC
t
on
Forward Turn-On Time
Intrinsic turn-on time is negligible (turn-on is dominated by LS+LD)
V
GS
= 5.0V
e
V
DD
= 28V
I
D
= 43A
R
G
= 4.3
T
J
= 25C, I
S
= 52A, V
GS
= 0V
e
T
J
= 25C, I
F
= 43A, V
DD
= 28V
di/dt = 100A/s
e
Conditions
V
GS
= 0V, I
D
= 250A
Reference to 25C, I
D
= 1mA
V
GS
= 10V, I
D
= 52A
e
V
DS
= V
GS
, I
D
= 250A
V
DS
= 55V, V
GS
= 0V
V
DS
= 55V, V
GS
= 0V, T
J
= 125C
MOSFET symbol
showing the
integral reverse
p-n junction diode.
Conditions
V
GS
= 5.0V
e
V
GS
= 0V
V
DS
= 25V
= 1.0MHz
V
GS
= 0V, V
DS
= 1.0V, = 1.0MHz
V
GS
= 0V, V
DS
= 44V, = 1.0MHz
V
GS
= 0V, V
DS
= 0V to 44V
f
V
GS
= 5.0V, I
D
= 43A
e
V
DS
= 25V, I
D
= 52A
I
D
= 43A
V
DS
= 44V
V
GS
= 16V
V
GS
= -16V
V
GS
= 4.5V, I
D
= 30A
e
IRL3705Z/S/L
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3
Fig 2. Typical Output Characteristics
Fig 1. Typical Output Characteristics
Fig 3. Typical Transfer Characteristics
Fig 4. Typical Forward Transconductance
vs. Drain Current
0.1
1
10
100
1000
VDS, Drain-to-Source Voltage (V)
0.01
0.1
1
10
100
1000
I D
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
C
u
r
r
e
n
t
(
A
)
VGS
TOP
12V
10V
8.0V
5.0V
4.5V
3.5V
3.0V
BOTTOM
2.8V
60s PULSE WIDTH
Tj = 25C
2.8V
0.1
1
10
100
1000
VDS, Drain-to-Source Voltage (V)
1
10
100
1000
I D
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
C
u
r
r
e
n
t
(
A
)
2.8V
60s PULSE WIDTH
Tj = 175C
VGS
TOP
12V
10V
8.0V
5.0V
4.5V
3.5V
3.0V
BOTTOM
2.8V
0
2
4
6
8
10
12
14
16
VGS, Gate-to-Source Voltage (V)
0.1
1
10
100
1000
I D
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
C
u
r
r
e
n
t
(
)
TJ = 25C
TJ = 175C
VDS = 15V
60s PULSE WIDTH
0
20
40
60
80
100
120
ID,Drain-to-Source Current (A)
0
20
40
60
80
100
120
G
f
s,
F
o
r
w
a
r
d
T
r
a
n
s
c
o
n
d
u
c
t
a
n
c
e
(
S
)
TJ = 25C
TJ = 175C
VDS = 8.0V
IRL3705Z/S/L
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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
1
10
100
VDS, Drain-to-Source Voltage (V)
100
1000
10000
100000
C
,
C
a
p
a
c
i
t
a
n
c
e
(
p
F
)
VGS = 0V, f = 1 MHZ
Ciss = Cgs + Cgd, C ds SHORTED
Crss = Cgd
Coss = Cds + Cgd
Coss
Crss
Ciss
0
10
20
30
40
QG Total Gate Charge (nC)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V
G
S
,
G
a
t
e
-
t
o
-
S
o
u
r
c
e
V
o
l
t
a
g
e
(
V
)
VDS= 44V
VDS= 28V
VDS= 11V
ID= 52A
1
10
100
1000
VDS, Drain-to-Source Voltage (V)
1
10
100
1000
I D
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
C
u
r
r
e
n
t
(
A
)
1msec
10msec
OPERATION IN THIS AREA
LIMITED BY R DS(on)
100sec
Tc = 25C
Tj = 175C
Single Pulse
0.0
0.5
1.0
1.5
2.0
VSD, Source-to-Drain Voltage (V)
1.00
10.00
100.00
1000.00
I S
D
,
R
e
v
e
r
s
e
D
r
a
i
n
C
u
r
r
e
n
t
(
A
)
TJ = 25C
TJ = 175C
VGS = 0V
IRL3705Z/S/L
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5
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig 9. Maximum Drain Current vs.
Case Temperature
Fig 10. Normalized On-Resistance
vs. Temperature
-60 -40 -20 0 20 40 60 80 100 120 140 160 180
TJ , Junction Temperature (C)
0.5
1.0
1.5
2.0
R
D
S
(
o
n
)
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
O
n
R
e
s
i
s
t
a
n
c
e
(
N
o
r
m
a
l
i
z
e
d
)
ID = 43A
VGS = 5.0V
1E-006
1E-005
0.0001
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
0.001
0.01
0.1
1
10
T
h
e
r
m
a
l
R
e
s
p
o
n
s
e
(
Z
t
h
J
C
)
0.20
0.10
D = 0.50
0.02
0.01
0.05
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
Ri (C/W)
i (sec)
0.5413 0.000384
0.5985 0.002778
J
J
1
1
2
2
R
1
R
1
R
2
R
2
C
Ci i
/
Ri
Ci=
i
/
Ri
25
50
75
100
125
150
175
TC , Case Temperature (C)
0
10
20
30
40
50
60
70
80
90
100
I D
,
D
r
a
i
n
C
u
r
r
e
n
t
(
A
)
Limited By Package
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