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| 型號(hào)： | THBTXXX11D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TRIPOLAR OVERVOLTAGE PROTECTION FOR TELECOM LINE |
| 中文描述： | 三極的電信線過(guò)電壓保護(hù) |
| 文件頁(yè)數(shù)： | 4/9頁(yè) |
| 文件大?。?/td> | 345K |
| 代理商： | THBTXXX11D |
THBTxxx11D
TEST CIRCUIT 1 for I
BO
and V
BO
parameters :
4/9
2
static
relay.
R1
140
R2
240
D.U.T
VBO
measure
IBO
measure
tp = 20ms
K
Transformer
220V/800V
5A
Auto
Transformer
220V/2A
Vout
TEST PROCEDURE :
n
Pulse Test duration (tp = 20ms):
- For Bidirectional devices = Switch K is closed
- For Unidirectional devices = Switch K is open.
n
V
OUT
Selection
- Device with V
BO
<
200 Volt
- V
OUT
= 250 V
RMS
, R
1
= 140
.
- Device with V
BO
200 Volt
- V
OUT
= 480 V
RMS
, R
2
= 240
.
TEST CIRCUIT 2 for I
H
parameter.
R
- V
P
V
BAT
= - 48 V
Surge generator
D.U.T.
This is a GO-NOGO test which allows to confirm the holding current (I
H
) level in a functional
test circuit.
TEST PROCEDURE :
n
1) Adjust the current level at the I
H
value by short circuiting the AK of the D.U.T.
2) Fire the D.U.T with a surge Current : Ipp = 10A , 10/1000
μ
s.
3) The D.U.T will come back off-state within 50 ms max.
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