IRF 20CJQ045

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PD - 2.478A
20CJQ045
SCHOTTKY RECTIFIER
2 Amp
Major Ratings and Characteristics
Characteristics
20CJQ045
Units
IF(AV) Rectangular
waveform
2.0
A
VRRM
45
V
IFSM @ tp = 5µs sine
390
A
VF @ 1.0Apk, T J = 125°C
(per leg)
0.46
V
-55 to 150
°C
TJ
Description / Features
The 20CJQ045 surface-mount Schottky rectifier has been
designed for applications requiring very low forward drop and
very small foot prints. Typical applications are in portables,
switching power supplies, converters, automotive systems,
free-wheeling diodes, battery charging and reverse battery
protection.
• Small footprint, surface mountable
• Low profile
• Very low forward voltage drop
• High frequency operation
• Guard ring for enhanced ruggedness and long-term
reliability
• Common Cathode
SOT-223
CASE STYLE
CASE OUTLINE
PART MARKING
PART NUMBER
2CJQF
INTERNATIONAL
RECTIFIER
LOGO
NOTES:
1 - DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2 - CONTROLLING DIMENSION: INCH.
3 DIMENSIONS DO NOT INCLUDE MOLD FLASH.
4 - CONFORMS TO JEDEC OUTLINE TO-261AA.
D ATE C ODE (YW W)
Y = LAST DIGIT OF YEAR
WW = WEEK
TOP MARKING
BOTTOM MARKING
WAFER
LOT CODE
BASE
COMMON
CATHODE
CIRCUIT
1
ANODE 1
2
3
ANODE 2
COMMON
CATHODE
297
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20CJQ045
Voltage Ratings
Part number
VR
20CJQ045
Max. DC Reverse Voltage (V)
45
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters
IF(AV)
IFSM
EAS
20CJQ Units Conditions
Max. Average Forward Current
2.0
See Fig. 5
4.0
Max. Peak One Cycle Non - Repetitive
390
Surge Current (Per Leg) See Fig. 7
23
Non - Repetitive Avalanche Energy
15
mJ
0.2
A
A
50% duty cycle @ TC = 126°C, rectangular waveform
50% duty cycle @ TC = 110°C, rectangular waveform
A
5µs Sine or 3µs Rect. pulse
Following any rated load condition
10ms Sine 0r 6ms Rect. pulse
and with rated VRRM applied.
T J = 25°C, IAS = 0.2A, L = 750mH
(Per Leg)
IAR
Repetitive Avalanche Current
(Per Leg)
Current decaying linearly to zero in 1µsec
Frequency limited by TJ max. VA = 1.5 X VR typical
Electrical Specifications
Parameters
VFM
Max. Forward Voltage Drop
Conditions
0.50
V
@ 1.0A
0.62
V
@ 2.0A
0.46
V
@ 1.0A
0.60
V
@ 2.0A
Max. Reverse Leakage Current
0.1
mA
T J = 25°C
(Per Leg) See Fig. 2
7.5
mA
T J = 125°C
(Per Leg) See Fig. 1
IRM
20CJQ Units
T J = 25°C
T J = 125°C
VR = rated VR
CT
Max. Junction Capacitance (Per Leg)
70
pF
VR = 5VDC, (test signal range 100KHz to 1MHz) 25°C
LS
Typical Series Inductance (Per Leg)
6.0
nH
Measured lead to lead 5mm from package body
dv/dt
Max. Voltage Rate of Change
7700
V/µs
(Rated VR)
Thermal-Mechanical Specifications
Parameters
20CJQ
Units
TJ
Max.Junction Temperature Range
-55 to 150
°C
T STG
Max. Storage Temperature Range
-55 to 150
°C
65
°C/W
DC operation
25
°C/W
DC operation — see Fig. 4.
RthJA Max. Thermal Resistance, Junction
Conditions
to Ambient
RthJL
Max. Thermal Resistance, Junction
to Lead
wt
Approximate Weight
Case Style
0.13(.0045)
g (oz.)
SOT-223
Pulse Width < 300µs, Duty Cycle < 2%
298
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20CJQ045
10
10
Reverse Current - I R (mA)
TJ = 150°C
TJ = 150°C
TJ = 25°C
100°C
75°C
0.1
50°C
0.01
25°C
0.001
A
0.0001
0
5
10
1
15
20
25
30
35
40
45
Reverse Voltage - VR (V)
Fig. 2 Typical Values of Reverse Current Vs.
Reverse Voltage (Per Leg)
100
Junction Capacitance - C T (pF)
Instantaneous Forward Current - IF (A)
TJ = 125°C
125°C
1
0.1
0.2
0.4
0.6
0.8
1.0
Forward Voltage Drop - VFM (V)
Fig. 1 Max. Forward Voltage Drop Characteristics
(Per Leg)
TJ = 25°C
A
10
0
10
20
30
40
50
Reverse Voltage - V R (V)
Thermal Impedance - Z
thJL
(°C/W)
Fig. 3 Typical Junction CapacitanceVs. Reverse
Voltage (Per Leg)
100
D = 0.17
10
D = 0.50
D = 0.33
D = 0.25
PD M
t
D = 0.08
1
t2
1
N o te s:
1 . D uty fac tor D = t / t
1 2
Single Pulse
(Thermal Resistance)
2 . Pe ak TJ = PD M x Z thJ L + TL
0.1
0.00001
0.0001
0.001
0.01
0.1
1
10
t 1, Rectangular Pulse Duration (Seconds)
Fig. 4 Max. Thermal Impedance ZthJL Characteristics (Per Leg)
299
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A
100
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160
3
20CJQ045
R thJL (DC) = 25°C/W
Average Power Loss - (Watts)
Allowable Case Temperature - (°C)
20CJQ045
140
DC
120
100
A
80
0.0
1.0
2.0
3.0
2
1
DC
RMS Limit
A
0
4.0
0
Average Forward Current - I F(AV) (A)
0.4
0.8
1.2
1.6
Average Forward Current - IF(AV) (A)
Fig. 5 Max. Allowable Case Temperature Vs.
Average Forward Current (Per Leg)
Non - Repetitive Surge Current - I FSM (A)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
Fig. 6 Forward Power Loss Characteristics
(Per Leg)
1000
At Any Rated Load Condition
And With Rated V RRM Applied
Following Surge
L
100
H IG H -S P E E D
S W IT C H
D UT
BRD
R g = 2 5 oh m
C U RR E NT
M O N IT O R
10
F R E E -W H E E L
D IO D E
4 0H FL 40 S 0 2
+
V d = 25 V o lt
A
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
A
Fig.7 Max. Non-Repetitive Surge Current (Per Leg)
Fig. 8 Unclamped Inductive Test Circuit
Refer to the Appendix Section for the following:
Appendix D:
Tape and Reel Information — See page 340.
300
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