HCPL-4661-000E

Series:	--
Packaging:	Tube
Part Status:	Active
Number of Channels:	2
Inputs - Side 1/Side 2:	2/0
Voltage - Isolation:	3750Vrms
Common Mode Transient Immunity (Min):	15kV/µs
Input Type:	DC
Output Type:	Open Collector, Schottky Clamped
Current - Output / Channel:	50mA
Data Rate:	10MBd
Propagation Delay tpLH / tpHL (Max):	100ns, 100ns
Rise / Fall Time (Typ):	24ns, 10ns
Voltage - Forward (Vf) (Typ):	1.5V
Current - DC Forward (If) (Max):	15mA
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

HCPL-4661-000E: Introduction and Working Principle

Optoisolators are components that divide two electronic circuits by using light, effectively isolating them from one another. HCPL-4661-000E is one such device, belonging to the class of Optoisolators with Logic Output. In this article, we will discuss the application fields of HCPL-4661-000E and its working principle.

Application of HCPL-4661-000E

The HCPL-4661-000E is a 6-pin optoisolator-based logic output, which can be easily used for interfacing logic inputs and logic-level conversion. It requires very few external components for operation and typically occupies less board space due to its compact design.It is often used to provide galvanic isolation in applications such as interfacing of logic and voltage signals, protection of data lines, circuit isolation, and sensor excitation. It can also be used in electrical isolation of a sensing device, like in the case of a flame or gas sensor. Furthermore, the HCPL-4661-000E is also suitable for isolating digital logic signals in memory systems, containing one or more digital sources. It can also be used further to isolate digital bus interfaces within various communication systems.

Working Principle of HCPL-4661-000E

The HCPL-4661-000E is a standard optoisolator, using an LED coupled to a phototransistor. The optoisolator contains a reverse-biased collector to emitter diode, connected to an LED on one end, and a phototransistor on the other end. In this case, the phototransistor is a bipolar transistor with its base terminal exposed to the LED light.The LED requires an external voltage source for operation. So, when the voltage is applied, the LED turns on, and the generated light activates the phototransistor, turning it on as well. This connection is the basis of the logic output function of HCPL-4661-000E.The current input is applied to the LED-phototransistor combination, which then creates a voltage drop across the collector-emitter junction of the phototransistor. This voltage differential is then used as a logic output signal, which can be further used for various applications.

Conclusion

The HCPL-4661-000E is an optoisolator with a logic output, classified under the Optoisolators-Logic Output class. It has several application fields, like providing galvanic isolation in memory systems, data protection, and communication systems. Its working principle consists of an LED/phototransistor pair, with the LED requiring an external voltage source to operate. Current is applied to the system, resulting in a voltage differential and thus, generating a logic output signal.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description