SCHOTTKY RECTIFIER
New GenIII D-61 Package
80 Amp
85CNQ015A
Bulletin PD-20044 rev. B 09/01
www.irf.com
1
Major Ratings and Characteristics
I
F(AV)
Rectangular
80
A
waveform
V
RRM
15
V
I
FSM
@ tp = 5 s sine
5200
A
V
F
@
40 Apk, T
J
= 75 C
0.32
V
(per leg)
T
J
range
- 55 to 100
C
Characteristics
85CNQ015A Units
The 85CNQ015A center tap Schottky rectifier module has
been optimized for ultra low forward voltage drop specifically
for the OR-ing of parallel power supplies. The proprietary
barrier technology allows for reliable operation up to 125 C
junction temperature. Typical applications are in parallel
switching power supplies, converters, reverse battery pro-
tection, and redundant power subsystems.
125C T
J
operation (V
R
< 5V)
Center tap module
Optimized for OR-ing applications
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
New fully transfer-mold
low profile, small
footprint, high current package
Description/Features
Case Styles
D61-8
85CNQ...A
85CNQ...ASM
85CNQ...ASL
D61-8-SM
D61-8-SL
85CNQ015A
2
Bulletin PD-20044 rev. B 09/01
www.irf.com
I
F(AV)
Max. Average Forward Current
80
A
50% duty cycle @ T
C
= 78 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
5200
5s Sine or 3s Rect. pulse
Surge Current (Per Leg) * See Fig. 7
850
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
9
mJ
T
J
= 25 C, I
AS
= 2 Amps, L = 4.50 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
2
A
Current decaying linearly to zero in 1 sec
(Per Leg)
Frequency limited by T
J
max. V
A
= 3 x V
R
typical
Part number
85CNQ015A
V
R
Max. DC Reverse Voltage (V)
15
V
RWM
Max. Working Peak Reverse Voltage (V)
25
Voltage Ratings
Absolute Maximum Ratings
Parameters
85CNQ Units
Conditions
A
V
FM
Max. Forward Voltage Drop
0.36
V
@ 40A
(Per Leg) * See Fig. 1
(1)
0.45
V
@ 80A
0.32
V
@ 40A
0.42
V
@ 80A
I
RM
Max. Reverse Leakage Current
20
mA
T
J
= 25 C
(Per Leg) * See Fig. 2
(1)
1000
mA
T
J
= 100 C
890
mA
T
J
= 100 C
V
R
= 12V
540
mA
T
J
= 100 C
V
R
= 5V
C
T
Max. Junction Capacitance (Per Leg)
3600
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
5.5
nH
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
10000
V/ s
(Rated V
R
)
Electrical Specifications
T
J
= 25 C
T
J
= 75 C
V
R
= rated V
R
Parameters
85CNQ Units
Conditions
T
J
Max. Junction Temperature Range
-55 to 125
C
T
stg
Max. Storage Temperature Range
-55 to 150
C
R
thJC
Max. Thermal Resistance Junction
0.85
C/W DC operation
* See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.42
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.30
C/W Mounting surface , smooth and greased
to Heatsink (D61-8 Only)
Device flatness < 5 mils
wt
Approximate Weight
7.8 (0.28)
g (oz.)
T
Mounting Torque
Min.
40 (35)
(D61-8 Only)
Max.
58 (50)
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters
85CNQ Units
Conditions
Following any rated
load condition and with
rated V
RRM
applied
(1) Pulse Width < 300s, Duty Cycle <2%
85CNQ015A
3
Bulletin PD-20044 rev. B 09/01
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Forward Voltage Drop - V
FM
(V)
Instantaneous Forward Current - I
F
(A)
Reverse Voltage - V
R
(V)
Reverse Current - I
R
(mA)
Reverse Voltage - V
R
(V)
Junction Capacitance - C
T
(p F)
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(C/W)
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Single Pulse
(Thermal Resistance)
D = 0.50
D = 0.25
D = 0.33
D = 0.17
D = 0.08
Notes:
1. Duty factor D = t
1
/ t
2
2. Peak Tj = Pdm x ZthJC + Tc
2
t
1
t
P
DM
0.1
1
10
100
1000
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
T = 100C
T = 75C
T = 25C
J
J
J
1
10
100
1000
0
5
10
15
75C
50C
25C
Tj = 100C
1000
10000
0
5
10
15
20
T = 25C
J
85CNQ015A
4
Bulletin PD-20044 rev. B 09/01
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
Average Forward Current - I
F(AV)
(A)
Allowable Case Temperature - (C)
Average Forward Current - I
F(AV)
(A)
Average Power Loss - (Watts)
Square Wave Pulse Duration - t
p
(microsec)
Non-Repetitive Surge Current - I
FSM
(A)
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
80
85
90
95
100
105
0
10
20
30
40
50
60
DC
R (DC) = 0.85 C/W
thJC
100
1000
10000
10
100
1000
10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
0
5
10
15
20
0
10
20
30
40
50
60
DC
RMS Limit
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
85CNQ015A
5
Bulletin PD-20044 rev. B 09/01
www.irf.com
Outline Table
Outline D61-8-SM
Dimensions are in millimeters and (inches)
Outline D61-8
Dimensions are in millimeters and (inches)
85CNQ015A
6
Bulletin PD-20044 rev. B 09/01
www.irf.com
Outline Table
Outline D61-8-SL
Dimensions are in millimeters and (inches)
85CNQ015A
7
Bulletin PD-20044 rev. B 09/01
www.irf.com
Part Marking Information
D61-8
D61-8-SM
D61-8-SL
THIS IS A 85CNQ015A WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
85CNQ015A
89 09 045A
THIS IS A 85CNQ015ASM WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
85CNQ015ASM
89 09 045A
THIS IS A 85CNQ015ASL WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
85CNQ015ASL
89 09 045A
85CNQ015A
8
Bulletin PD-20044 rev. B 09/01
www.irf.com
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
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.
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