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PD -93972
SCHOTTKY RECTIFIER
HIGH EFFICIENCY SERIES
80SCLQ045
80 Amp, 45V
Major Ratings and Characteristics
Characteristics
80SCLQ045 Units
IF(AV)
VRRM (Per Leg)
IFSM @ tp = 8.3ms half-sine
(Per Leg)
80
45
250
A
V
A
VF @ 40Apk, TJ =125°C
(Per Leg)
0.62
V
TJ, Tstg Operating and storage -55 to 150 °C
Description/Features
The 80SCLQ045 center tap Schottky rectifier has been
expressly designed to meet the rigorous requirements of hi-
rel environments. It is packaged in the hermetic surface
mount SMD-1 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
• Center Tap
• Low Forward Voltage Drop
• High Frequency Operation
• Guard Ring for Enhanced Ruggedness and Long term
Reliability
• Surface Mount
• Lightweight
CASE STYLE
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IR Case Style SMD-1
213
ANODECOMMONANODE
CATHODE
1
10/06/00

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80SCLQ045
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) (Per Leg)
VRWM Max. Working Peak Reverse Voltage (V) (Per Leg)
80SCLQ045
45
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current
See Fig. 5
IFSM Max. Peak One Cycle Non - Repetitive
Surge Current (Per Leg)
Limits
80
250
Units
Conditions
A 50% duty cycle @ TC = 84°C, square waveform
A @ tp = 8.3 ms half-sine
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop
(Per Leg) See Fig. 1
Limits
0.62
0.67
0.70
0.85
0.57
0.63
0.66
0.88
Units
V
V
V
V
V
V
V
V
@ 30A
@ 40A
@ 45A
@ 80A
@ 30A
@ 40A
@ 45A
@ 80A
Conditions
TJ= -55°C
TJ = 25°C
0.53
0.62
0.64
V @ 30A
V @ 40A
V @ 45A
TJ = 125°C
0.87
IRM Max. Reverse Leakage Current
(Per Leg) See Fig. 2
0.6
80
195
CT Max. Junction Capacitance (Per Leg) 2000
L S Typical Series Inductance (Per Leg)
5.9
V @ 80A
mA TJ = 25°C
mA TJ = 100°C
mA TJ = 125°C
VR = rated VR
pF VR = 5VDC ( 1MHz, 25°C )
nH Measured from center of cathode pad to center of
anode pad
Thermal-Mechanical Specifications
Parameters
TJ
Tstg
RthJC
Max.Junction Temperature Range
Max. Storage Temperature Range
Max. Thermal Resistance, Junction
to Case (Per Leg)
RthJC Max. Thermal Resistance, Junction
to Case (Per Package)
wt Weight (Typical)
Die Size (Typical)
Limits Units
-55 to 150 °C
-55 to 150 °C
1.25 °C/W
Conditions
DC operation See Fig. 4
0.63 °C/W DC operation
2.6
150X180
g
mils
Case Style
SMD-1
 Pulse Width < 300µs, Duty Cycle < 2%
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80SCLQ045
1000
125°C
100
100°C
100 10
75°C
1
25°C
0.1
0.01
0
10 20 30 40
Reverse Voltage - VR (V)
50
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage (Per Leg)
10
Tj = 125°C
Tj = 25°C
10000
Tj = -55°C
1
0.0
0.2 0.4 0.6 0.8
Forward Voltage Drop - V F (V)
1.0
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1000
TJ = 25°C
100
0
10 20 30 40
Reverse Voltage -VR (V)
50
Fig. 3 - Typical Junction Capacitance Vs.
Reverse Voltage (Per Leg)
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80SCLQ045
10
1
D = 0.50
0.20
0.10
0.1 0.05
0.02
0.01
0.01
0.00001
PDM
t1
SINGLE PULSE
(THERMAL RESPONSE)
t2
Notes:
1. Duty factor D = t1 / t 2
2. Peak TJ = P DM x ZthJC + TC
0.0001
0.001
0.01
t1 , Rectangular Pulse Duration (sec)
0.1
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
180
160 80SCLQ045
140 R thJC = 1.25°C/W
120
100 DC
80
60
40
20
0
0
20 40 60 80 100 120
Average Forward Current - IF(AV) (A)
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current (Per Leg)
1
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Data and specifications subject to change without notice. 10/00
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