HCPL-0931

Series:	--
Packaging:	Tube
Part Status:	Active
Technology:	GMR (Giant Magnetoresistive)
Type:	General Purpose
Isolated Power:	No
Number of Channels:	2
Inputs - Side 1/Side 2:	1/1
Channel Type:	Unidirectional
Voltage - Isolation:	2500Vrms
Common Mode Transient Immunity (Min):	15kV/µs
Data Rate:	110MBd
Propagation Delay tpLH / tpHL (Max):	15ns, 15ns
Pulse Width Distortion (Max):	3ns
Rise / Fall Time (Typ):	1ns, 1ns
Voltage - Supply:	3 V ~ 5.5 V
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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Digital Isolators

HCPL-0931 is an optically coupled isolator that provides common mode transient protection for data signals. This family of digital isolators provides a high degree of galvanic isolation between the input and output channels to ensure that signals are transmitted reliably without interference or cross talk. Digital Isolation is a key component of any data signal routing system and the HCPL-0931 series provides versatility and performance in a wide range of applications.

Application Field

The HCPL-0931 isolator is a great choice for applications where you need to maintain galvanic isolation between two signals. This could be in an industrial automation environment, where you need to keep signals from being transmitted through the same ground, or it could be in an energy-measurement system, where you want to keep signals traveling in opposite directions separate. The HCPL-0931 can also be used in medical applications where you need to maintain signal integrity even in the presence of external electrical noise. This isolator is also suitable for use in automotive applications where the isolation of a signal must be maintained even in the presence of high-voltage transients.

Working Principle

The HCPL-0931 isolator uses a combination of optical and electrical components to maintain signal isolation. The isolator consists of two parallel channels, one containing an LED and the other containing a photodiode. A light pulse is generated by the LED and is received by the photodiode. The current generated by the photodiode is then fed into an opto-coupler and amplified before being output from the isolator. The optical path between the input and output channels provides a high degree of galvanic isolation, ensuring that signals transmitted through the isolator are not influenced or corrupted by external electrical noise or interference.The optical aspect of the isolator also provides high levels of insulation resistance, allowing the signals to remain isolated from each other, even when subjected to high voltages. This makes the HCPL-0931 an ideal choice for applications in environments with high electrical noise or interference levels.The HCPL-0931 isolator can also be used to provide transient protection for data signals. The optical path between the signal inputs and outputs ensures that any transient signals are blocked, allowing signals to be transmitted reliably without disruption or data corruption.In addition, the HCPL-0931 isolator provides an extremely fast response time, with less than 10 nanoseconds of delay between the input and output channels, allowing signals to be transmitted with minimal delay and disruption.

Conclusion

The HCPL-0931 isolator is an excellent choice for applications that require signal isolation and transient protection. Its combination of fast response time and high insulation resistance provide reliable signal transmission, making it a great choice for a variety of applications. The HCPL-0931 is a cost-effective and reliable solution for applications that require signal isolation and data integrity.

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