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AN2064 View Datasheet(PDF) - STMicroelectronics

Part Name
Description
MFG CO.
'AN2064' PDF : 14 Pages View PDF
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AN2064 - APPLICATION NOTE
Table 4: SMP100MC series datasheet absolute ratings (Tamb = 25°C)
Symbol
Parameter
IPP Repetitive peak pulse current
10/1000 µs
8/20 µs
10/560 µs
5/310 µs
10/160 µs
1/20 µs
2/10 µs
IFS Fail-safe mode : maximum current (note 1)
8/20 µs
ITSM
Non repetitive surge peak on-state current (sinusoidal)
t = 0.2 s
t=1s
t=2s
t = 15 mn
I2t I2t value for fusing
t = 16.6 ms
t = 20 ms
Tstg Storage temperature range
Tj Maximum junction temperature
TL Maximum lead temperature for soldering during 10 s.
Note 1: in fail safe mode, the device acts as a short circuit
Value
100
400
140
150
200
400
500
5
18
9
7
4
20
21
-55 to 150
150
260
Unit
A
kA
A
A2s
°C
°C
Tables 3 and 4 show that the SMP100MC-270 complies with the CO US market standard requirements.
The telecom system design engineer must next define the suitable fuse. Figure 6 gives the surge
capability limit of the SMP100MC series TRISIL when submitted to the power fault disturbances. The
series overcurrent protection device cannot be a PTC due to its high resistance value, so the only choice
will be the fuse, which meets the following criteria:
. Shall not operate for 100A 10/1000µs surge
. Shall not operate for 500A 2/10µs surge
. Shall operate for 25ARMS (35.4A peak) within 40ms (see SMP100MC series ITSM curve figure 6)
. Shall operate for 60ARMS (85A peak) within 4ms (estimated value)
Figure 6: ITSM and IRMS capability versus surge duration
Surge Current (A)
70
60
50
40
30
ITSM
20
IRMS
10
0
1.E-02
t(s)
1.E-01
1.E+00
1.E+01
F=50Hz
Tj initial = 25°C
1.E+02
1.E+03
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