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Home | Product Categories | General ICs | COM-00784

Optoisolator - 4 Channel

sku: COM-00784 RoHS Compliant

Description: Opto-isolator with transistor output for interfacing to noisy loads. This 16-pin dip can be used in conjunction with relays, small motors, etc. to allow a simple microcontroller to turn on and off up to 50mA per channel.

Datasheets: PS2501 Datasheet, Example Schematic

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ASCII version


Comments 7 comments

  • sixscrews | about 4 years ago 1

    While the datasheet is correct, the example schemo for this product is not – it shows the darlington output of the single-channel SFE part #COM-00314.
    The business end of this device is a single PNP phototransistor. It also does not have the reverse bypass diode of the single channel device.
    ss

  • Member #150002 | about a year ago 1

    You should add this to your eagle lib.

  • bbotany | about 11 months ago 1

    For anyone else considering this for isolated interfacing to serial comms of not yet determined levels, it appears that this can handle up to about 100kHz switching, so it can’t really be counted on for 115200 serial communication, but probably OK at 57600 and lower.

  • dougY | about 11 months ago 1

    i havent tried this at speeds over 9600 baud to back up bbotany’s claims of 100kHz, but i got it to successfully send data over rs485 (with sparkfun’s BOB —> http://www.sparkfun.com/products/10124) from a netduino+ to a RS485-USB converter on my laptop and into hyperterminal.

  • madprog | about 6 months ago 1

    I tested this out with an 3.3V Arduino Pro Mini, and was able to transmit at up to 57600 baud without problems. As bbotany expected, 115200 didn’t work.

    This works way better than the opto-isolator breakout for transmitting serially. That only worked up to 14400.

  • Member #15428 | about 5 months ago 1

    Will this work with a 3.3V uC (MSP430) output? What are the voltage min/max voltage levels on the inputs? What about current requirements? Any help is appreciated.

  • Pär (electrohack.org) | about 4 months ago 1

    What resistor is recommended to use with this? In the example schematic there is a 50ohm resistor but is that enough when I use the V5 and digital out from the arduino?