Bulletin PD-20045 rev. A 09/01
87CNQ020A
SCHOTTKY RECTIFIER
New GenIII D-61 Package
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 40 Apk, T
J
= 125 °C
(per leg)
range
80 Amp
Description/Features
Values
80
20
6000
0.32
Units
A
V
A
V
The center tap Schottky rectifier module has been optimized
for ultra low forward voltage drop specifically for 3.3V output
power supplies. The proprietary barrier technology allows for
reliable operation up to 150 °C junction temperature. Typical
applications are in parallel switching power supplies,
converters, reverse battery protection, and redundant power
subsystems.
150 °C T
J
operation
Center tap module
Optimized for 3.3V application
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
- 55 to 150
°C
New fully transfer-mold low profile, small
footprint, high current package
Case Styles
83CNQ...A
83CNQ...ASM
83CNQ...ASL
D61-8
www.irf.com
D61-8-SM
D61-8-SL
1
87CNQ020A
Bulletin PD-20045 rev. A 09/01
Voltage Ratings
Part number
V
R
V
R
Max. DC Reverse Voltage (V)
Max. DC Reverse Voltage (V)
@ 125° C
@ 150° C
87CNQ020A / ..020ASM / ..020ASL
20
10
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward (Per Device)
Current
(Per Leg)
I
FSM
E
AS
I
AR
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg)
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
87CNQ Units
80
40
6000
1100
36
8
A
A
mJ
A
Conditions
50% duty cycle @ T
C
= 135°C, rectangular wave form
Following any rated
5µs Sine or 3µs Rect. pulse
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
T
J
= 25 °C, I
AS
= 8 Amps, L = 1.12 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg)
(1)
87CNQ Units
0.45
0.51
0.32
0.39
0.29
0.37
V
V
V
V
V
V
mA
mA
mA
mA
mA
V
mΩ
pF
nH
V/ µs
@ 40A
@ 80A
@ 40A
@ 80A
@ 40A
@ 80A
Conditions
T
J
= 25 °C
T
J
= 125 °C
T
J
= 150 °C
V
R
= rated V
R
V
R
= 5V
V
R
= 3.3V
V
R
= 10V
I
RM
Max. Reverse Leakage Current
(Per Leg)
(1)
5.5
550
90
70
480
T
J
= 25 °C
T
J
= 125 °C
T
J
= 125 °C
T
J
= 125 °C
T
J
= 150 °C
T
J
= T
J
max.
V
F(TO)
Threshold Voltage
r
t
Forward Slope Resistance
C
T
L
S
Max. Junction Capacitance (Per Leg)
Typical Series Inductance
(Per Leg)
0.191
2.3
6500
5.5
10000
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%
87CNQ 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
MountingTorque
(D61-8 Only)
°C/W DCoperation
°C/W DCoperation
°C/W Mounting surface , smooth and greased
Device flatness < 5 mils
g (oz.)
Kg-cm
(Ibf-in)
2
www.irf.com
87CNQ020A
Bulletin PD-20045 rev. A 09/01
1000
Reverse Current - I
R
(mA)
10000
1000
100
10
1
0.1
0.01
0
T J = 150˚C
T = 125˚C
J
T = 25˚C
J
Tj = 150˚C
125˚C
100˚C
75˚C
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
100
5
10
15
20
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
Junction Capacitance - C
T
(p F)
10
T J = 25˚C
1
0
0.2
0.4
0.6
0.8
1
Forward Voltage Drop - V
FM
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1000
0
5
10
15
20
25
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
1
Thermal Impedance Z
thJC
(°C/W)
0.1
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
D = 0.75
0.01
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t1 / t2
t1
t2
2. Peak Tj = Pdm x ZthJC + Tc
.001
0.00001
0.0001
0.001
0.01
0.1
1
t
1
, Rectangular Pulse Duration (Seconds)
10
100
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
www.irf.com
3
87CNQ020A
Bulletin PD-20045 rev. A 09/01
50
Allowable Case Temperature (°C)
Average Power Loss (Watts)
25
20
15
45
40
35
Square wave (D = 0.50)
30
80% Rated Vr applied
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
RMS Limit
10
5
0
0
10
20
30
40
50
60
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
25
see note (2)
20
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)
10000
Non-Repetitive Surge Current - I
FSM
(A)
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
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
www.irf.com
87CNQ020A
Bulletin PD-20045 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)
www.irf.com
5
京公网安备 11010802033920号
EEWORLD
