Microsemi reserves the right to change, without notice, the specifications and information contained herein.
6.0
Z
JC
, THERMAL IMPEDANCE (°C/W)
θ
5.0
4.0
3.0
2.0
1.0
0
10
-5
D = 0.9
0.7
0.5
0.3
SINGLE PULSE
0.1
0.05
10
-4
10
-3
Note:
PDM
t1
t2
Duty Factor D =
1
/
t2
Peak TJ = PDM x Z
θJC
+ TC
t
10
-2
10
-1
1.0
10
100
RECTANGULAR PULSE DURATION (seconds)
FIGURE 1a. MAXIMUM EFFECTIVE TRANSIENT THERMAL IMPEDANCE, JUNCTION-TO-CASE vs. PULSE DURATION
T
J
(°C)
T
C
(°C)
1.62
1.49
2.30
5-2006
Dissipated Power
(Watts)
0.0007
0.247
1.76
053-4243 Rev B
Z
EXT
are the external thermal
impedances: Case to sink,
sink to ambient, etc. Set to
zero when modeling only
the case to junction.
FIGURE 1b, TRANSIENT THERMAL IMPEDANCE MODEL
Z
EXT
TYPICAL PERFORMANCE CURVES
30
25
t
rr
, REVERSE RECOVERY TIME
(ns)
120
100
80
60
40
20
0
APT8DQ60K3CT(G)
T = 125°C
J
V = 400V
R
16A
I
F
, FORWARD CURRENT
(A)
T
J
= 175°C
20
15
8A
4A
T
J
= 125°C
10
5
0
T
J
= 25°C
T
J
= -55°C
0
0.5 1.0
1.5 2.0
2.5 3.0 3.5
V
F
, ANODE-TO-CATHODE VOLTAGE (V)
Figure 2. Forward Current vs. Forward Voltage
400
Q
rr
, REVERSE RECOVERY CHARGE
(nC)
350
300
250
200
150
100
50
0
T = 125°C
J
V = 400V
R
0
200
400
600
800 1000 1200
-di
F
/dt, CURRENT RATE OF CHANGE(A/µs)
Figure 3. Reverse Recovery Time vs. Current Rate of Change
I
RRM
, REVERSE RECOVERY CURRENT
(A)
14
12
10
8
6
4
T = 125°C
J
V = 400V
R
16A
16A
8A
4A
8A
4A
2
0
0
200
400
600
800 1000 1200
-di
F
/dt, CURRENT RATE OF CHANGE (A/µs)
Figure 4. Reverse Recovery Charge vs. Current Rate of Change
1.2
K
f
, DYNAMIC PARAMETERS
(Normalized to X000A/µs)
1.0
0.8
0.6
0.4
Q
rr
0.2
0.0
I
RRM
Q
rr
0
200
400
600
800 1000 1200
-di
F
/dt, CURRENT RATE OF CHANGE (A/µs)
Figure 5. Reverse Recovery Current vs. Current Rate of Change
12
10
8
I
F(AV)
(A)
6
4
2
0
Duty cycle = 0.5
T = 175°C
J
t
rr
t
rr
25
50
75
100
125
150
T
J
, JUNCTION TEMPERATURE (°C)
Figure 6. Dynamic Parameters vs. Junction Temperature
60
C
J
, JUNCTION CAPACITANCE
(pF)
50
40
30
20
10
0
0
75
100
125
150
175
Case Temperature (°C)
Figure 7. Maximum Average Forward Current vs. CaseTemperature
25
50
10
100 200
V
R
, REVERSE VOLTAGE (V)
Figure 8. Junction Capacitance vs. Reverse Voltage
1
053-4243 Rev B
5-2006
APT8DQ60K3CT(G)
Vr
+18V
0V
D.U.T.
30µH
trr/Qrr
Waveform
di
F
/dt Adjust
APT6038BLL
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
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.
0.25 IRRM
5
Figure 10, Diode Reverse Recovery Waveform and Definitions
TO-220 (K3CT) Package Outline
e3 100% Sn
2.80 (.110)
2.60 (.102)
10.66 (.420)
9.66 (.380)
5.33 (.210)
4.83 (.190)
7.10 (.280)
6.70 (.263)
16.00 (.630)
15.80 (.622)
3.70 (.145)
2.20 (.126)
3.40 (.133) Dia.
3.10 (.123)
6.35 (.250)
MAX.
14.73 (.580)
12.70 (.500)
0.48 (.019)
0.44 (.017)
2.85 (.112)
2.65 (.104)
4.80 (.189)
4.60 (.181)
5-2006
1.01 (.040) 3-Plcs.
0.38 (.015)
2.79 (.110)
2.29 (.090)
5.33 (.210)
4.83 (.190)
Anode
Cathode
Anode
1.77 (.070) 3-Plcs.
1.15 (.045)
053-4243 Rev B
Dimensions in Millimeters and (Inches)
Microsemi'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
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