ILQ31

Output Type:	Darlington
Supplier Device Package:	16-DIP
Package / Case:	16-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	1V
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.25V
Current - Output / Channel:	125mA
Voltage - Output (Max):	30V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	10µs, 35µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	--
Current Transfer Ratio (Min):	200% @ 10mA
Voltage - Isolation:	5300Vrms
Number of Channels:	4
Part Status:	Active
Packaging:	Tube

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.Introduction:The ILQ31 is a type of optoisolator – a device which electrically isolates two circuits using a combination of a light emitter on one side and a photosensitive element on the other. This optoisolator can be used for a wide range of applications in both industrial and commercial settings. This article will discuss the application fields of the ILQ31, as well as its working principles.Application Field:The main applications of the ILQ31 optoisolator are analog signal isolator, digital signal isolator, and optically isolated dimmers/pulsers. As an analog signal isolator, the ILQ31 can be used to transfer AC and DC analog signals from one isolated circuit to another. Since the two sides of the circuit are electrically isolated, this helps protect sensitive electronic equipment from voltage surges or other hazardous conditions. In addition, the ILQ31 can be used to transfer digital signals, such as voltages greater than 5V or lower than –5V, between two isolated circuits. This can be done with a series of signal enables, allowing the signal to skip the input and output stages, thus ensuring electrical and electromagnetic isolation. The ILQ31 can also be used as an optically isolated dimmer/pulser. This optoisolator has the ability to provide a dimming control, as well as a pulse input, to two isolated circuits. By controlling the light brightness, the ILQ31 can modulate the voltage of the output circuit, which can be used to regulate the speed of a motor, adjust the brightness of an LED, or for other purposes.Working Principle:The ILQ31 optoisolator works by utilizing an infrared LED light source on one side, which is then sensed by two photodiodes on the other. This allows two circuits to be isolated from each other, allowing for optimal safety and performance. When a current is applied to the LED side, an infrared light is emitted, which is then detected by the photodiodes on the other side. This causes the photodiodes to create a voltage across a load, such as a transistor, resistor, or capacitance. This voltage can then be used to control the circuit which is isolated from the input side. The ILQ31 optoisolator is able to isolate the two circuits from each other without transferring a large current, which makes it a great choice for applications which require voltage isolation with minimal power loss. Because of its low power consumption and high isolation voltage, it is perfect for a variety of different applications.Conclusion:The ILQ31 optoisolator is a versatile device which is suited for a variety of different applications. Its high isolation voltage makes it ideal for transferring both AC and DC analog signals, as well as digital signals, between two isolated circuits. In addition, its optically isolated dimmer/pulser feature makes it a great choice for modulating the voltage of the output circuit, which can be used for a variety of purposes. Finally, its low power consumption and high isolation voltage make it an ideal choice for a wide range of applications.

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