TISP61089A 查看數據表（PDF） - Power Innovations Ltd
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TISP61089A
Power Innovations Ltd
TISP61089A Datasheet PDF : 17 Pages
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TISP61089A
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
JUNE 1999
section 4.5.12 - first-level power fault testing
The most significant tests are a long duration (900 s) medium current test and a higher current tests of 60 one
second power applications. As shown in table 4, the peak currents for these tests are 2x0.37 A and 2x1.3 A
respectively. The TISP61089A will survive both these conditions as its ratings are 2x0.83 A and 2x4.1 A for
these time periods
table 4. first-level power fault currents
A.C.
OPEN-CIRCUIT SHORT-CIRCUIT SOURCE
DURATION RMS VOLTAGE RMS CURRENT RESISTANCE
s
V
A
Ω
1
200
0.33
600
1
400
0.67
600
1
600
1
600
1
1000
1
1000
900
50
0.33
150
900
100
0.17
590
TOTAL CIRCUIT
RESISTANCE
Ω
640
640
640
1040
190
630
ITRMS
A
2x0.31
2x0.63
2x0.94
2x0.96
2x0.26
2x0.16
ITM
A
2x0.44
2x0.88
2x1.3
2x1.3
2x0.37
2x0.22
Using a 25 Ω series resistor will result in table 4. ITM column values of 2x0.45, 2x0.9, 2x1.4, 2x1.4, 2x0.4 and
2x0.23. The TISP61089A will survive these peak current values as they are lower than the TISP61089A
ratings.
section 4.5.13 - second-level power fault testing
The two most significant tests are a long duration (900 s) medium current test and a higher current 5 s test.
As shown in table 5, the peak currents for these tests are 2x17 A and 2x7.7 A respectively. For the
TISP61089A to survive this test, the series current limiting element must operate within 0.01 s and 0.35 s
respectively.
table 5. second-level power fault currents
A.C.
OPEN-CIRCUIT SHORT-CIRCUIT SOURCE
DURATION RMS VOLTAGE
CURRENT
RESISTANCE
s
V
A
Ω
5
600
5
600
900
120
900
277
900
100
900
300
900
600
60
10
7
86
25
5
25
11
0.37
273
1.1
273
2.2
273
TOTAL
CIRCUIT
RESISTANCE
Ω
50
126
45
51
313
313
313
ITRMS
A
2x12
2x4.8
2x2.7
2x5.4
2x0.32
2x0.96
2x1.9
ITM
A
2x17
2x6.8
2x3.8
2x7.7
2x0.45
2x1.4
2x2.7
PRODUCT INFORMATION
11
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