APT Reserves the right to change, without notice, the specifications and information contained herein.
1.2
Z
JC
, THERMAL IMPEDANCE (°C/W)
θ
1.0
0.9
0.8
0.7
0.6
0.5
Note:
PDM
0.4
0.3
SINGLE PULSE
t1
t2
0.2
0.1
0.05
10
-5
10
-4
t
Duty Factor D = 1/t2
Peak TJ = PDM x Z
θJC
+ TC
0
10
-3
10
-2
10
-1
1.0
RECTANGULAR PULSE DURATION (seconds)
FIGURE 1a. MAXIMUM EFFECTIVE TRANSIENT THERMAL IMPEDANCE, JUNCTION-TO-CASE vs. PULSE DURATION
RC MODEL
Junction
temp (°C)
1-2004
0.241
°C/W
Power
(watts)
0.858
°C/W
Case temperature (°C)
0.000249 J/°C
053-6038 Rev B
0.000678 J/°C
FIGURE 1b, TRANSIENT THERMAL IMPEDANCE MODEL
TYPICAL PERFORMANCE CURVES
60
T
J
= -55°C
50
I
F
, FORWARD CURRENT
(A)
APT15S20BCT
140
t
rr
, REVERSE RECOVERY TIME
(ns)
T
J
= 125°C
V
R
= 133V
T
J
= 150°C
T
J
= 25°C
120
100
80
60
40
20
0
30A
15A
7.5A
40
30
T
J
= 125°C
20
10
0
0.2
0.4
0.6
0.8
1
1.2
V
F
, ANODE-TO-CATHODE VOLTAGE (V)
Figure 2. Forward Current
vs.
Forward Voltage
T
J
= 125°C
V
R
= 133V
0
0
200
400
600
800
-di
F
/dt, CURRENT RATE OF CHANGE(A/µs)
Figure 3. Reverse Recovery Time
vs.
Current Rate of Change
25
I
RRM
, REVERSE RECOVERY CURRENT
(A)
T
J
= 125°C
V
R
= 133V
1200
Q
rr
, REVERSE RECOVERY CHARGE
(nC)
30A
30A
1000
20
800
600
15A
15
10
400
7.5A
7.5A
200
0
5
15A
0
200
400
600
800
-di
F
/dt, CURRENT RATE OF CHANGE (A/µs)
Figure 4. Reverse Recovery Charge
vs.
Current Rate of Change
1.2
Q
rr
K
f
, DYNAMIC PARAMETERS
(Normalized to 700A/µs)
0
200
400
600
800
-di
F
/dt, CURRENT RATE OF CHANGE (A/µs)
Figure 5. Reverse Recovery Current
vs.
Current Rate of Change
70
Duty cycle = 0.5
T
J
= 150°C
0
t
rr
60
50
I
F(AV)
(A)
1.0
I
RRM
0.8
0.6
0.4
Q
rr
t
rr
40
30
20
0.2
0.0
10
0
0
50
75
100
125
150
Case Temperature (°C)
Figure 7. Maximum Average Forward Current
vs.
CaseTemperature
25
25
50
75
100
125
150
T
J
, JUNCTION TEMPERATURE (°C)
Figure 6. Dynamic Parameters
vs.
Junction Temperature
1000
C
J
, JUNCTION CAPACITANCE
(pF)
800
600
400
1-2004
200
10
100 200
V
R
, REVERSE VOLTAGE (V)
Figure 8. Junction Capacitance
vs.
Reverse Voltage
0
.6
1
053-6038 Rev B
APT15S20BCT
Vr
+18V
0V
D.U.T.
30µH
trr/Qrr
Waveform
di
F
/dt Adjust
APT20M36BLL
PEARSON 2878
CURRENT
TRANSFORMER
Figure 9. Diode Test Circuit
1
2
3
4
I
F
- Forward Conduction Current
di
F
/dt - Rate of Diode Current Change Through Zero Crossing.
I
RRM
- Maximum Reverse Recovery Current.
Zero
1
4
5
3
2
0.25 IRRM
trr -
Reverse
Recovery
Time, measured from zero crossing where diode
current goes from positive to negative, to the point at which the straight
line through I
RRM
and 0.25 I
RRM
passes through zero.
Qrr - Area Under the Curve Defined by I
RRM
and trr.
5
Figure 10, Diode Reverse Recovery Waveform and Definitions
TO-247 Package Outline
4.69 (.185)
5.31 (.209)
1.49 (.059)
2.49 (.098)
6.15 (.242) BSC
20.80 (.819)
21.46 (.845)
3.55 (.138)
3.81 (.150)
15.49 (.610)
16.26 (.640)
5.38 (.212)
6.20 (.244)
Common Cathode
4.50 (.177) Max.
0.40 (.016)
0.79 (.031)
2.87 (.113)
3.12 (.123)
1.65 (.065)
2.13 (.084)
19.81 (.780)
20.32 (.800)
1.01 (.040)
1.40 (.055)
053-6038 Rev B
1-2004
Anode 1
Common Cathode
Anode 2
2.21 (.087)
2.59 (.102)
5.45 (.215) BSC
2-Plcs.
Dimensions in Millimeters and (Inches)
APT’s products are covered by one or more of U.S.patents 4,895,810 5,045,903 5,089,434 5,182,234 5,019,522
5,262,336 6,503,786 5,256,583 4,748,103 5,283,202 5,231,474 5,434,095 5,528,058 and foreign patents. US and Foreign patents pending. All Rights Reserved.
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