INTERFET 81CNQ035A

Bulletin PD-20040 rev. A 09/01
81CNQ...A SERIES
SCHOTTKY RECTIFIER
New GenIII D-61 Package
80 Amp
Major Ratings and Characteristics
Characteristics
IF(AV) Rectangular
Description/Features
81CNQ...A Units
80
A
35 to 45
V
IFSM @ tp = 5 µs sine
4600
A
VF
0.54
V
waveform
VRRM range
TJ
@ 40 Apk, TJ = 125°C
(per leg)
The 81CNQ...A center tap Schottky rectifier module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable operation
up to 175 °C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
175 °C TJ operation
Center tap module
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
range
- 55 to 175
°C
Guard ring for enhanced ruggedness and long term
reliability
New fully transfer-mold low profile, small
footprint, high current package
Case Styles
81CNQ...A
D61-8
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81CNQ...ASM
D61-8-SM
81CNQ...ASL
D61-8-SL
1
81CNQ...A Series
Bulletin 20040 rev. A 09/01
Voltage Ratings
Part number
VR
81CNQ035A
81CNQ040A
81CNQ045A
35
40
45
Max. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters
81CNQ Units
IF(AV) Max. Average Forward Current
80
Conditions
A
50% duty cycle @ TC = 141 °C, rectangular wave form
A
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied
* See Fig. 5
IFSM
Max. Peak One Cycle Non-Repetitive
4600
Surge Current (Per Leg) * See Fig. 7
790
EAS
Non-Repetitive Avalanche Energy
(Per Leg)
54
mJ
IAR
Repetitive Avalanche Current
(Per Leg)
8
A
5µs Sine or 3µs Rect. pulse
TJ = 25 °C, IAS = 8 Amps, L = 1.7 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
VFM
Max. Forward Voltage Drop
Conditions
0.60
V
@ 40A
0.74
0.54
V
V
@ 80A
@ 40A
0.66
V
@ 80A
Max. Reverse Leakage Current
5
mA
TJ = 25 °C
(Per Leg) * See Fig. 2
45
mA
TJ = 125 °C
2600
pF
VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
5.5
nH
Measured lead to lead 5mm from package body
10000
V/ µs
(Per Leg) * See Fig. 1
IRM
81CNQ Units
(1)
(1)
CT
Max. Junction Capacitance (Per Leg)
LS
Typical Series Inductance
(Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated VR
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
81CNQ Units
TJ
Max. Junction Temperature Range
-55 to 175
Tstg
Max. Storage Temperature Range
-55 to 175
°C
RthJC Max. Thermal Resistance Junction
to Case (Per Leg)
0.85
°C/W
DCoperation
RthJC Max. Thermal Resistance Junction
to Case (Per Package)
0.42
°C/W
DCoperation
RthCS Typical Thermal Resistance, Case
to Heatsink (D61-8 Only)
0.30
°C/W
Mounting surface , smooth and greased
Device flatness < 5 mils
°C
wt
Approximate Weight
7.8 (0.28)
g (oz.)
T
MountingTorque
Min.
40 (35)
(D61-8 Only)
Max.
58 (50)
Kg-cm
(Ibf-in)
2
Conditions
* See Fig. 4
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81CNQ...A Series
Bulletin 20040 rev. A 09/01
1000
1000
Tj = 175˚C
100
Reverse Current - IR (mA)
100
10
125˚C
1
100˚C
75˚C
0.1
50˚C
25˚C
0.01
0.001
0
5
10 15 20 25 30 35 40 45
Reverse Voltage - VR (V)
10
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
T = 175˚C
J
10000
T = 125˚C
J
Junction Capacitance - C T (p F)
Instantaneous Forward Current - I F (A)
150˚C
T = 25˚C
J
1
T J = 25˚C
1000
0.1
0
0.2
0.4
0.6
0.8
100
1
0
10
20
30
40
Forward Voltage Drop - VFM (V)
Reverse Voltage - VR (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
50
Thermal Impedance Z thJC (°C/W)
1
D = 0.50
D = 0.33
D = 0.25
D = 0.17
0.1
PDM
D = 0.08
t1
t2
Notes:
Single Pulse
(Thermal Resistance)
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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3
81CNQ...A Series
Bulletin 20040 rev. A 09/01
32
RthJC (DC) = 0.85 ˚C/W
Average Power Loss (Watts)
Allowable Case Temperature (°C)
180
170
160
DC
150
D = 0.08
28 D = 0.17
D = 0.25
24 D = 0.33
D = 0.50
20
DC
16 RMS Limit
12
8
4
140
0
0
10
20
30
40
50
60
0
10
20
30
40
50
60
Average Forward Current - IF(AV) (A)
Average Forward Current - IF(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
Non-Repetitive Surge Current - I FSM (A)
10000
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - tp (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
D UT
IRFP460
Rg = 25 ohm
C URRE NT
M O N ITO R
H IG H-SPE ED
SW ITC H
FR EE-W H E EL
D IO D E
+
V d = 25 V olt
40H FL40 S02
Fig. 8 - Unclamped Inductive Test Circuit
4
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81CNQ...A Series
Bulletin 20040 rev. A 09/01
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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5
81CNQ...A Series
Bulletin 20040 rev. A 09/01
Outline Table
Outline D61-8-SL
Dimensions are in millimeters and (inches)
6
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81CNQ...A Series
Bulletin 20040 rev. A 09/01
Part Marking Information
INTERNATIONAL
RECTIFIER
LOGO
THIS IS A 81CNQ045A WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
PART NUMBER
81CNQ045A
89 09
045A
DATE CODE
ASSEMBLY
LOT CODE
YEAR 0 = 2000
WEEK 45
LINE A
D61-8
INTERNATIONAL
RECTIFIER
LOGO
THIS IS A 81CNQ045ASM WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
PART NUMBER
81CNQ045ASM
89 09
045A
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
ASSEMBLY
LOT CODE
D61-8-SM
THIS IS A 81CNQ045ASL WITH
LOT CODE 89 09
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
81CNQ045ASL
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
89 09
ASSEMBLY
LOT CODE
045A
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
D61-8-SL
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7
81CNQ...A Series
Bulletin 20040 rev. A 09/01
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
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) 252-7309
Visit us at www.irf.com for sales contact information. 09/01
8
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