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MJD122 Datasheet(PDF) 5 Page - Motorola, Inc

Part No. MJD122
Description  SILICON POWER TRANSISTORS 8 AMPERES 100 VOLTS 20 WATT
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MJD122 Datasheet(HTML) 5 Page - Motorola, Inc

   
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MJD122 MJD127
5
Motorola Bipolar Power Transistor Device Data
t, TIME OR PULSE WIDTH (ms)
1
0.01
1000
0.3
0.2
0.07
R
θJC(t) = r(t) RθJC
R
θJC = 6.25°C/W
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) θJC(t)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
0.01
0.7
0.5
0.1
0.05
0.03
0.02
0.02 0.03
0.05
0.1
0.2 0.3
0.5
1
2
3
5
10
20
30
50
100
200 300
500
0.2
SINGLE PULSE
D = 0.5
0.05
0.1
0.5
3
0.3
0.2
0.7
1
5
IC, COLLECTOR CURRENT (AMP)
VCC = 30 V
IC/IB = 250
IB1 = IB2
TJ = 25°C
3
2
0.7
0.5
0.3
0.2
ts
tf
tr
td @ VBE(off) = 0 V
PNP
NPN
Figure 9. Switching Times Test Circuit
Figure 10. Switching Times
0.1
1
10
7
5
2
Figure 11. Thermal Response
V2
APPROX
+ 8 V
0
≈ 8 k
SCOPE
VCC
– 30 V
RC
51
FOR td AND tr, D1 IS DISCONNECTED
AND V2 = 0
FOR NPN TEST CIRCUIT REVERSE ALL POLARITIES.
25
µs
tr, tf ≤ 10 ns
DUTY CYCLE = 1%
+ 4 V
RB & RC VARIED TO OBTAIN DESIRED CURRENT LEVELS
D1, MUST BE FAST RECOVERY TYPE, e.g.:
1N5825 USED ABOVE IB ≈ 100 mA
MSD6100 USED BELOW IB ≈ 100 mA
V1
APPROX
–12 V
TUT
RB
D1
≈ 120
0.07
0.05
0.1
0.01
5
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
0.3
100
5
2
0.5
0.2
BONDING WIRE LIMIT
THERMAL LIMIT
TC = 25°C (SINGLE PULSE)
SECOND BREAKDOWN LIMIT
10
50
7
TJ = 150°C
100
µs
1 ms
dc
0.1
1
3
15
20
30
20
70
CURVES APPLY BELOW RATED VCEO
5 ms
Figure 12. Maximum Forward Bias
Safe Operating rea
3
2
1
10
0.05
0.02
0.03
500
µs
There are two limitations on the power handling ability of a
transistor: average junction temperature and second break-
down. Safe operating area curves indicate IC – VCE limits of
the transistor that must be observed for reliable operation;
i.e., the transistor must not be subjected to greater dissipa-
tion than the curves indicate.
The data of Figure 12 is based on TJ(pk) = 150_C; TC is
variable depending on conditions. Second breakdown pulse
limits are valid for duty cycles to 10% provided TJ(pk)
< 150
_C. TJ(pk) may be calculated from the data in Fig-
ure 11. At high case temperatures, thermal limitations will re-
duce the power that can be handled to values less than the
limitations imposed by second breakdown.


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