HCPL-1931

Data Rate:	10Mbps
Supplier Device Package:	16-DIP
Package / Case:	16-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply:	4.5 V ~ 5.5 V
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	--
Rise / Fall Time (Typ):	30ns, 24ns
Propagation Delay tpLH / tpHL (Max):	100ns, 100ns
Series:	--
Current - Output / Channel:	25mA
Output Type:	Open Collector, Schottky Clamped
Input Type:	DC
Common Mode Transient Immunity (Min):	1kV/µs
Voltage - Isolation:	1500VDC
Inputs - Side 1/Side 2:	2/0
Number of Channels:	2
Part Status:	Active
Packaging:	Tube

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Optoisolators - Logic Output

Optocouplers, or optoisolators, are electrical devices used to isolate an input circuit from an output circuit. They usually consist of an LED inside an optically opaque package that is connected to the input, and a phototransistor or other light-sensitive element connected to the output. When the LED is illuminated, current is able to pass through the phototransistor, thereby transferring the signal from the input to the output. The HCPL-1931 optoelectronic coupler is a particularly advantageous optoisolator designed for logic output. The HCPL-1931 is designed with specific features that make it suited for a particular application field and thus enable it to outperform other optoisolators. This optoelectronic coupler consists of a 660nm LED emitting light into an integrated circuit photodiode housed in a 6-pin dual-in-line package. Its more prominent features include a 30 kV/µs minimum data rate, a 1K Ohm input impedance, RF signal shielding, and Photodiod enabled logic output (PDL). The HCPL-1931 is worth considering for applications where a logic output is desired such as industrial automation and instrumentation, data acquisition systems, power supply feedbacks, motor control systems, fire alarm systems, etc. The broad supply voltage of 2.5 - 36V DC makes it suitable for a wide range of systems running on different voltages. Additionally, its data rate of 30 kV/µs minimum and 1K Ohm input impedance reduces the influence of noise in the transmission system and hence minimizes the time needed for signal identification. The working principle of the HCPL-1931 is quite simple yet effective. An LED at the base of the package is energized when the input voltage is applied, causing it to emit infrared light that is picked up by a photodiode located at the opposite end. The photodiode then produces a current signal which is transferred to the output side and used to drive various load devices. The main advantage of this system is that the input and output circuits are electrically isolated from each other, thus providing enhanced safety for the user and the associated equipment. Overall, the HCPL-1931 is a great optoisolator for anyone looking to transfer information between two separate circuits. Its wide operating voltage range, RF signal shielding, and PDL logic output make it a versatile and reliable device, ideal for use in numerous industries. Thanks to its simple yet effective design, the HCPL-1931 is an invaluable tool when it comes to transferring data between the input and output with complete accuracy, no matter the voltage or signal strength.

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