PD - 94288A
SCHOTTKY RECTIFIER
HIGH EFFICIENCY SERIES
30LJQ045
30 Amp, 45V
Major Ratings and Characteristics
Description/Features
The 30LJQ045 Schottky rectifier has been expressly
designed to meet the rigorous requirements of hi-rel
environments. It is packaged in the hermetic surface mount
SMD-0.5 ceramic package. The device's forward voltage
drop and reverse leakage current are optimized for the
lowest power loss and the highest circuit efficiency for typical
high frequency switching power supplies and resonent
power converters. Full
MIL-PRF-19500 quality
conformance testing is available on source control
drawings to TX, TXV and S quality levels.
•
•
•
•
Hermetically Sealed
Low Forward Voltage Drop
High Frequency Operation
Guard Ring for Enhanced Ruggedness and Long term
Reliability
• Surface Mount
• Lightweight
Characteristics
I
F(AV)
V
RRM
I
FSM
@ tp = 8.3ms half-sine
V
F
@ 30Apk, T
J
=125°C
30LJQ045
30
Units
A
45
100
0.66
V
A
V
T
J
, T
stg
Operating and storage
-55 to 150
°C
CASE STYLE
CATHODE ANODE ANODE
IR Case Style SMD-0.5
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1
08/21/01
30LJQ045
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
30LJQ045
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
See Fig. 5
I
FSM
Max. Peak One Cycle Non - Repetitive
Surge Current
100
A
@ t
p
= 8.3 ms half-sine
Limits
30
Units
A
Conditions
50% duty cycle @ T
C
= 107 °C, square waveform
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
See Fig. 1Q
Limits
0.86
1.07
0.71
0.94
0.66
0.88
Units
V
V
V
V
V
V
mA
mA
mA
pF
nH
@ 30A
@ 60A
@ 30A
@ 60A
@ 30A
@ 60A
T
J
= 25°C
T
J
= 100°C
T
J
= 125°C
Conditions
T
J
= -55°C
T
J
= 25°C
T
J
= 125°C
I
RM
Max. Reverse Leakage Current
See Fig. 2Q
0.1
3.6
20
V
R
= rated V
R
C
T
L
S
Max. Junction Capacitance
Typical Series Inductance
1300
4.8
V
R
= 5V
DC
( 1MHz, 25°C )
Measured from center of cathode pad to center of
anode pad
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max.Junction Temperature Range
Max. Storage Temperature Range
to Case
wt
Weight (Typical)
Die Size (Typical)
Case Style
Q
Pulse Width < 300µs, Duty Cycle < 2%
R
Pins 2 and 3 externally tied together
1.0
115X170
SMD-0.5
g
mils
Limits Units
-55 to 150
-55 to 150
1.6
°C
°C
°C/W
DC operation
Conditions
R
thJC
Max. Thermal Resistance, Junction
See Fig. 4
2
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30LJQ045
100
10
125°C
100°C
Reverse Current - I R ( mA )
1
75°C
0.1
100
0.01
25°C
0.001
0.0001
0
10
20
30
40
50
Instantaneous Forward Current - I F (A)
Reverse Voltage - VR (V)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10
10000
Tj = 125°C
Tj = 25°C
Junction Capacitance - CT (pF)
TJ = 25°C
1000
Tj = -55°C
1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Forward Voltage Drop - V F (V)
100
Fig. 1 - Max. Forward Voltage Drop Characteristics
0
10
20
30
40
50
Reverse Voltage -VR (V)
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage
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30LJQ045
10
Thermal Response (Z
thJC
)
1 D = 0.50
0.20
0.10
0.1
0.05
0.02
0.01
0.0001
SINGLE PULSE
(THERMAL RESPONSE)
0.01
0.00001
Notes:
1. Duty factor D = t
1
/ t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.1
0.001
0.01
1
P
DM
t
1
t
2
t
1
, Rectangular Pulse Duration (sec)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics
180
160
30LJQ045
R thJC = 1.6°C/W
Allowable Case Temprature - (°C)
140
120
100
80
60
40
20
0
0
10
20
30
40
50
DC
Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current
I
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TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 08/01
4
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