PD-2.216 rev. C 01/99
80CNQ... SERIES
SCHOTTKY RECTIFIER
80 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 40 Apk, T
J
= 125°C
(per leg)
range
- 55 to 150
°C
Description/Features
Units
A
V
A
V
The 80CNQ center tap Schottky rectifier module series has
been optimized for very low forward voltage drop, with
moderate leakage. The proprietary barrier technology allows
for reliable operation up to 150° C junction temperature. Typical
applications are in switching power supplies, converters, free-
wheeling diodes, and reverse battery protection.
150° C T
J
operation
Center tap module
Very low forward voltage drop
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Low profile, small footprint, high current package
80CNQ...
80
35 to 45
5800
0.47
Case Styles
80CNQ...
80CNQ...SM
80CNQ...SL
D61-8
D61-8-SM
D61-8-SL
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1
80CNQ... Series
PD-2.216 rev. C
01/99
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
35
40
45
V
RWM
Max. Working Peak Reverse Voltage (V)
80CNQ035
80CNQ040
80CNQ045
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(PerLeg)
(Per Device)
80CNQ Units
40
80
5800
750
54
8
A
mJ
A
A
Conditions
50% duty cycle @ T
C
= 114 °C, rectangular wave form
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 8 Amps, L = 1.7 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
80CNQ Units
0.52
0.66
0.47
0.61
5
250
0.26
3.93
2600
5.5
10,000
V
V
V
V
mA
mA
V
mΩ
pF
nH
V/ µs
@ 40A
@ 80A
@ 40A
@ 80A
Conditions
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle <2%
80CNQ Units
-55 to 150
-55 to 150
0.85
0.42
0.30
7.8 (0.28)
Min.
Max.
40 (35)
58 (50)
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
(D61-8 Only)
wt
T
Approximate Weight
Mounting Torque
(D61-8 Only)
°C/W DCoperation
°C/W DCoperation
* See Fig. 4
°C/W Mounting surface , smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
2
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80CNQ... Series
PD-2.216 rev. C
01/99
1000
1000
T
J
= 150°C
Reverse Current - I
R
(mA)
100
125°C
100°C
75°C
1
50°C
0.1
25°C
0.01
0
5
10
15
20
25
30
R
10
(A)
Instant aneous Forward Current - I
F
100
35
(V)
40
45
Reverse Voltage - V
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
Junction Capacitance - C
T
(pF)
10
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
T
J
= 25°C
1000
1
0
0.2
0.4
0.6
0.8
1
1.2
Forward Voltage Drop - V
FM
(V)
100
0
10
20
30
40
50
Reverse Voltage - V
R
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(PerLeg)
1
Thermal Impedance Z
thJC
(°C/W)
D
D
D
D
D
0.1
Notes:
= 0.75
= 0.50
= 0.33
= 0.25
= 0.20
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
P
DM
t1
t2
Single Pulse
(Thermal Resistance)
1. Duty factor D = t 1 / t 2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
80CNQ... Series
PD-2.216 rev. C
01/99
160
Allowable Case Temperature - (°C)
Average Power Loss - (Watts)
30
25
20
15
10
5
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
DC
140
DC
120
Square wave (D = 0.50)
80% Rated V
R
applied
100
see note (2)
80
0
10
20
30
40
50
60
Average Forward Current - I
F(AV)
(A)
0
10
20
30
40
50
60
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Non-Repetitive Surge Current - I
FSM
(A)
10000
Fig. 6 - Forward Power Loss Characteristics
(PerLeg)
1000
At Any Rated Load Condition
And With Rated V
Applied
RRM
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
Vd = 25 Volt
DUT
IRFP460
Rg = 25 ohm
+
CURRENT
MONITOR
Fig. 8 - Unclamped Inductive Test Circuit
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
4
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80CNQ... Series
PD-2.216 rev. C
01/99
Outline Table
Outline D61-8
Dimensions are in millimeters and (inches)
Outline D61-8-SM
Dimensions are in millimeters and (inches)
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