200 volt SPDT solid state switch needed

S

Steve

Jan 1, 1970
0
I need a SPDT solid state switch that can handle 200 volts on one pole
and 0 volts on its other and be switched by TTL. I have up to 10 mA
available to drive the switch. Switch output current is low (< 1 mA)
and switching speed can be slow (1 msec). Ideally, 4 or 8 on one chip
would be nice instead of wiring up many of these from individual
components. Are there any high side/low side or half-H bridge
"drivers" that can handle 200 volts ?
 
S

Steve

Jan 1, 1970
0
John,

Are there any totem-pole optoisolators with 200 V capability ?

I have looked at some optically isolated solid state relays (OptoMOS,
PhotoMOS, etc) that have two single pole outputs with one being NO and
the other NC. My concern is their make-before-break action (crow-bar
possibility) when arranged as SPDT. The PS7141-1C showed a spike on
the power supply. The Clare LCC110 and Panasonic AQW614 did not spike
so they could work. I was wondering if there was an alternative
multi-channel device or one with very low drive requirement.

Steve
 
S

Steve

Jan 1, 1970
0
Load is a piezo actuator drawing < 1 mA.

The Supertex devices are SPST not SPDT. The non-shift register
versions (which I'd prefer) do not seem to go to 200 V.
 
S

Steve

Jan 1, 1970
0
I should have said the relay needs to be able to be toggled at 1 kHz
rate.
 
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