Industrologic, Inc. reserves the right to change any product's features, specifications, documentation, warranties, fee schedules, and conditions at any time and without notice.
Industrologic products are provided as printed circuit board level assemblies. Some Industrologic products may include mechanical packaging accessories which are provide for the purchaser's convenience, and are not intended to be final assembly enclosures.
Industrologic products are provided with the understanding that the purchaser will determine fitness for any particular application as well as achieve compliance with any particular specifications or regulations as required or desired for that application.
Industrologic's obligation under this Warranty is limited to replacement with a new or repaired unit to the original purchaser. The unit must be returned, and replacements obtained from Industrologic, Inc. or the Distributor or OEM from whom it was purchased.
This warranty will not apply if, in the judgment of Industrologic, Inc., damage or failure of the product has resulted from accident, alteration, misuse, abuse, connection to or operation with incompatible signals or power sources, or improper installation.
Under no circumstances shall Industrologic, Inc. be liable to purchaser or any third party for any loss of profits or other direct or indirect costs, expenses, losses, or consequential damages arising out of or as a result of any defects in or failure of Industrologic products or any part or parts thereof.
THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EITHER EXPRESSED OR IMPLIED, AS TO DESCRIPTION, QUALITY, MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE OR USE, OR ANY OTHER MATTER.
Products must be returned by original purchaser with a Return Materials Authorization (RMA) number issued by Industrologic, Inc. or the Distributor or OEM from whom it was purchased, authorizing its return. Current repair or replacement fees and procedures will be related during the issue of the RMA number.
Warranty or repair units must be returned with postage and insurance paid by purchaser. Industrologic, Inc. is not responsible for damages or loss during shipment.
Refer to the drawing "Dimensions and Connections" on a following page for printed circuit board layout and dimensions.
The following values are provided as a quick reference only, and are specific to the optocoupler installed. Refer to the data sheet for the optocoupler installed for detailed information about the electrical characteristics of the optocoupler and additional information about connecting the optocoupler to various input and output circuits. Fairchild 6N138-139 data sheet Fairchild 4N29-33 data sheet
Split-darlington Darlington optocoupler
optocoupler
Power Supply Requirements: 6N139 4N33
+V supply maximum voltage: 18V N/A
Maximum supply current: 1.5mA N/A
Optocoupler input: 6N139 4N33
Minimum voltage: 1.75V 1.5V
Maximum current: 20mA 80mA
Minimum suggested current: 0.5mA 2mA
Optocoupler output: 6N139 4N33
Maximum voltage: 18V 30V
Maximum current: 20mA 150mA
The eight optocoupler circuits may be used individually as input or output isolation circuits, and may also be individually used with either darlington or split-darlington optocouplers, although the power supply for the split-darlington optocouplers and the output pullup resistors is common to all eight circuits.
The inputs to the optocouplers can be treated in a similar manner as an LED. Circuits driving the inputs can source current to the anode (or positive input) while the cathode is connected to ground, or the cathode (or negative input) can sink current while the anode is connected to a positive voltage.
The outputs to the optocoupler can be treated in a similar manner as an NPN transistor. The emitter can source current with the collector connected to a positive voltage, or the collector can sink current with the emitter connected to ground.
The manner in which the inputs and outputs are connected will determine whether or not the optocoupler circuit will invert the logic level of the signal being isolated.
The UOB8 can be special ordered with 4N33 or equivalent medium gain darlington optocouplers installed. With this optocoupler installed the eight circuits may completely isolated if opto output pullup resistor pack RP2 is removed.
Resistor pack RP1 is used to select the opto input current. The following table lists the current and wattage that results from a particular resistor pack value and input voltage. The standard UOB8 comes with a 4.7K resistor pack for RP1, which allows its input voltage to be in the range of 5 to 24 volts.
This table assumes a switched voltage only, and does not take into consideration the output circuitry, voltage drops, and current limitations that exist in logic gates and other output devices. Refer to the data sheet for the optocoupler installed for detailed information for additional information about connecting the optocoupler to logic gates and various input and output circuits.
Most DIP resistor packs are rated at 1/4 watt for each resistor, therefore, voltage and resistor combinations that exceed 1/4 watt are not listed. For increased reliability the value of the resistor pack selected should result in the lowest practical current/power setting. It can be seen from the chart that the higher input voltages will require the use of a high gain split-darlington optocoupler in order to keep the power dissipation of the resistor pack within its limits of 1/4 watt.
Input Voltage
48V 24V 12V 5V
RP1
100K 0.48mA .023W
47K 1.02mA .049W 0.51mA .012W
22K 2.1mA .1W 1.1mA .026W 0.54mA .0065W
10K 4.8mA .23W 2.4mA .057W 1.2mA .014W 0.5mA .0025W
4.7K 5.1mA .12W 2.5mA .03W 1.0mA .0053W
2.2K 10.9mA .26W 5.4mA .065W 2.2mA .011W
1K 12mA .14W 5.0mA .025W
470 10.6mA/.053W
