Bulletin PD-2.175 05/00
161CNQ... SERIES
SCHOTTKY RECTIFIER
160 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
V
F
T
J
@ tp = 5 µs sine
@ 80 Apk, T
J
= 125°C
(per leg)
range
Description/Features
TO-249AA
161CNQ... Units
160
35 to 45
11500
0.63
A
V
A
V
The 161CNQ non isolated, 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 175° C junction temperature. T y p i c a l
applications are in switching power supplies, converters, free-
wheeling diodes, and reverse battery protection.
175° C T
J
operation
Isolated heatsink
Center tap module
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Low profile, high current package
- 55 to 175
°C
(NON ISOLATED BASE)
Outline TO-249AA
Dimensions in millimeters and (inches)
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1
161CNQ... Series
Bulletin PD-2.175
05/00
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
161CNQ035
35
161CNQ040
40
161CNQ045
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(Per Leg)
(PerDevice)
161CNQ Units Conditions
80
160
11,500
900
108
16
mJ
A
A
5µs Sine or 3µs Rect. pulse
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
A
50% duty cycle @ T
C
= 129 °C, rectangular wave form
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-RepetitiveAvalancheEnergy
(Per Leg)
RepetitiveAvalancheCurrent
(Per Leg)
T
J
= 25 °C, I
AS
= 16 Amps, L = 0.84 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) * See Fig. 1
(1)
161CNQ Units Conditions
0.71
0.88
0.63
0.79
V
V
V
V
mA
mA
pF
nH
V/ µs
(1) Pulse Width < 300µs, Duty Cycle <2%
@ 80A
@ 160A
@ 80A
@ 160A
T
J
= 25 °C
T
J
= 125 °C
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
C
T
L
S
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
5
45
2600
8.0
10,000
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25°C
Measured from terminal hole to terminal hole
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
161CNQ Units Conditions
- 55 to 175
- 55 to 175
0.70
0.35
0.10
58 (2.0)
Min.
Max.
40 (35)
58 (50)
°C
°C
°C/W DCoperation
°C/W DCoperation
°C/W Mounting surface , smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
JEDEC
* See Fig. 4
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
wt
T
Approximate Weight
MountingTorque
Case Style
TO - 249AA
2
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161CNQ... Series
Bulletin PD-2.175
05/00
1000
Reverse Current - I
R
(mA)
1000
100
10
1
75˚C
T J = 175˚C
150˚C
125˚C
100˚C
0.1
0.01
0.001
0
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
100
T = 175˚C
J
T = 125˚C
J
T = 25˚C
J
10
20
30
40
Reverse Voltage - V
R
(V)
50
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
Junction Capacitance - C
T
(p F)
T = 25˚C
J
10
1000
1
0
0.2
0.4 0.6 0.8
1
1.2 1.4
Forward Voltage Drop - V
FM
(V)
1.6
100
0
10
20
30
40
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
50
Fig. 1 - Max. Forward Voltage Drop Characteristics
(PerLeg)
1
(°C/W)
thJC
0.1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
Thermal Impedance Z
t1
0.01
Single Pulse
(Thermal Resistance)
t2
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
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)
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161CNQ... Series
Bulletin PD-2.175
05/00
180
Allowable Case Temperature (°C)
Average Power Loss (Watts)
80
70
60
50
40
30
20
10
40
60
80
100
120
160
DC
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
RMS Limit
DC
140
Square wave (D = 0.50)
120
80% Rated Vr applied
see note (2)
100
0
20
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)
0
0
20
40
60
80
100
120
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
10000
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
H IG H - SP E E D
SW IT C H
FR E E - W H E E L
D IO D E
40 HFL4 0 S02
V d = 2 5 V o lt
D UT
IRFP4 60
Rg = 25 ohm
+
C UR R E N T
M O N IT O R
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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161CNQ... Series
Bulletin PD-2.175
05/00
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