ACS1086S STMICROELECTRONICS [STMicroelectronics], ACS1086S Datasheet - Page 7

• Manufacturer Part Number: ACS1086S
• Description: AC switch family Transient voltage protected AC Switch (ACSTM)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ACS108-6S
2.1.2
Figure 14. Effect of the switching off of a high
Figure 16. Overvoltage ruggedness test circuit
Surge generator
"1.2/50 waveform"
2.4 kV surge
100µs/div
Rgene
I
(5 mA/div)
AC line transient voltage ruggedness
The ACS108-6S switch is able to withstand safely the AC line transients either by clamping the
low energy spikes or by breaking over under high energy shocks, even with high turn-on current
rises.
The test circuit shown in
also used to test the ACS switch according to the IEC 61000-4-5 standard conditions. Thanks
to the load limiting the current, the ACS108-6S switch withstands the voltage spikes up to 2 kV
above the peak line voltage. The protection is based on an overvoltage crowbar technology.
Actually, the ACS108-6S breaks over safely as shown in
its blocking voltage capability after the surge (switch off back at the next zero crossing of the
current).
Such non-repetitive tests can be done 10 times on each AC line voltage polarity.
2
OUT
1
inductive load - typical clamping
capability of ACS108-6S
for resistive and inductive loads
with conditions equivalent to
IEC 61000-4-5 standards
I
H
2
3
4
Model of the load
150
R
V
(200 V/div)
V
OUT
PEAK
5
5µH
= V
Figure 16
L
CL
ACS108-6Sx
is representative of the final ACS108-6S application, and is
Rg
220
Figure 15. Description of the different steps
Figure 17. Typical current and voltage
200ns/div
V
(200 V/div)
V
during switching off of a high
inductive load
waveforms across the ACS108-6S
during IEC 61000-4-5 standard test
OUT
PEAK
Figure
I
I
I
I
OUT
OUT
H
H
2 AC line switch - basic application
17. The ACS108-6S recovers
5
5
2
2
1
1
3
3
4
4
I
(2 A/div)
OUT
V
V
CL
CL
V
V
OUT
OUT
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