HCPL-3120-500E Isolators

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Technology:	Optical Coupling
Number of Channels:	1
Voltage - Isolation:	3750Vrms
Common Mode Transient Immunity (Min):	25kV/µs
Propagation Delay tpLH / tpHL (Max):	500ns, 500ns
Pulse Width Distortion (Max):	300ns
Rise / Fall Time (Typ):	100ns, 100ns
Current - Output High, Low:	2A, 2A
Current - Peak Output:	2.5A
Voltage - Forward (Vf) (Typ):	1.5V
Current - DC Forward (If) (Max):	25mA
Voltage - Supply:	15 V ~ 30 V
Operating Temperature:	-40°C ~ 100°C
Mounting Type:	Surface Mount
Package / Case:	8-SMD, Gull Wing
Supplier Device Package:	8-DIP Gull Wing
Approvals:	CSA, UR

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Introduction

The HCPL-3120-500E is a high-speed digital isolator that enables robust communications over high-speed physical media, such as differential signaling, based on Avago Technologies’ opto-isolation technology. It can be used in a variety of applications, including gate drives, multi-action controllers, instrumentation, microcontrollers, military systems, medical, and consumer appliances.

Application Field of HCPL-3120-500E

The HCPL-3120-500E isolator is an ideal solution for isolating signals with moderate AC parameters over high-speed differential lines. Its slim design is well suited for use in tight, space-critical applications, such as adding a current path and isolation to a buffer gate driver ICs or serving as an isolator in a differential line driver.The HCPL-3120-500E isolator can be used in several applications, such as gate drives, multi-action controllers, instrumentation, microcontrollers, military systems, medical devices, and consumer appliances.• Gate Drivers: The HCPL-3120-500E is well suited for isolating signals with moderate AC parameters over high-speed differential lines. It can be used in buffer gate driver ICs to add a current path and isolation.• Multi-action Controllers: The isolator can be used as an isolator for signals used in multi-action controllers. The isolator ensures that the signals can be correctly delivered while protecting the system from possible electrical noise and other interferences.• Instrumentation: The isolator is also suitable for instrumentation applications where signal integrity must be maintained. The isolator ensures that the signals are delivered correctly while also protecting the system from potential electrical noise and other interferences.• Military Systems: The isolator is also suitable for military systems applications. The isolator ensures the reliability of the communication links between different subsystems while also protecting the system from potential electrical noise and other interferences.• Medical Devices: The isolator is also suitable for medical devices. The isolator ensures that the signals are delivered correctly while also protecting the system from potential electrical noise and other interferences.• Consumer Appliances: The HCPL-3120-500E is also suitable for use in consumer appliances. The isolator ensures that the signals are delivered correctly while also protecting the system from potential electrical noise and other interferences.

Working Principle of the HCPL-3120-500E Isolator

The HCPL-3120-500E isolator is based on Avago Technologies’ opto-isolation technology. The working principle of the HCPL-3120-500E is based on the concept of opto-coupling. An LED (light-emitting diode) is used to transmit an optical signal from a driver to the isolator’s optical receiver, which in turn initiates an electrical signalling path. The electrical signal travels through the isolator to the output pin where it is received and acted upon.The output signal is isolated from the input signal, meaning that any potential interference on the input side is eliminated when the signal reaches the output. The HCPL-3120-500E also provides high isolation voltage, up to 500 V, and a low propagation delay, as low as 22 ns, making it suitable for high-speed applications.Furthermore, the relay-driver type circuit provides output drive currents up to 25 mA, depending on the applied voltage, making the device suitable for reliability-critical applications, such as in military systems.

Conclusion

The HCPL-3120-500E high-speed digital isolator is an ideal solution for isolating signals with moderate AC parameters across high-speed differential lines. The isolator is well suited for use in tight, space-critical applications, such as in buffer gate driver ICs and other relay-driver type circuits. It provides high isolation voltage, up to 500 V, and low propagation delay, as low as 22 ns, making it suitable for high-speed applications. The HCPL-3120-500E can be used in a variety of applications, including gate drives, multi-action controllers, instrumentation, microcontrollers, military systems, medical devices, and consumer appliances.

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