HCPL-2731-520E

Output Type:	Darlington
Supplier Device Package:	8-DIP Gull Wing
Package / Case:	8-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Vce Saturation (Max):	100mV
Current - DC Forward (If) (Max):	12mA
Voltage - Forward (Vf) (Typ):	1.4V
Current - Output / Channel:	60mA
Voltage - Output (Max):	18V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	--
Turn On / Turn Off Time (Typ):	5µs, 10µs
Current Transfer Ratio (Max):	2600% @ 1.6mA
Current Transfer Ratio (Min):	500% @ 1.6mA
Voltage - Isolation:	5000Vrms
Number of Channels:	2
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to HCPL-2731-520E

HCPL-2731-520E optoisolators are high-performance, digital incremental encoder receivers designed for high speed, high resolution interfaces. The optoisolator utilizes an IGBT design to provide the output transistor with high-speed switching capability, enabling the receiver to support digital communication networks at high speeds up to 12.5 Mbps. The HCPL-2731-520E also offers a variety of options to optimize the user’s design, including modulation frequency, supply voltage, communication rate and delay.

Application Fields

HCPL-2731-520E optoisolators are a good choice for applications in a variety of areas, such as automotive, medical imaging, consumer electronics, communication and networking, and test and measurement systems where high voltage isolation is required. In automotive applications ,such as active car driver identification, this device provide high speed data transmission with minimal jitter.In medical imaging applications, such as linear and circular scanners, it allows for more accurate and reliable measurement results. In consumer electronics, such as remote controls, high speed TTL level logic is available with the HCPL-2731-520E for accurate data transmission between devices.

Working Principle

The HCPL-2731-520E incorporates several components to provide reliable high-speed switching capability with high voltage isolation. The heart of the device is a high-voltage optically coupled isolator, which consists of an LED coupled to a photodetector. when the LED is energized, it emits light, which is detected by the photodetector. The detected light is then amplified and used to drive an IGBT. An IGBT is used as the isolation conductor to safely transfer the mobile signals from the input to the output without allowing electrical current from one circuit to another. This ensures that the voltage levels from the input side are not allowed to affect the output side and vice versa.The optoisolator has several other components to ensure high-speed switching. The photodetector is designed to provide fast settling times, while adjustable bias resistors and a feedback compensation loop allow for optimal gain and rise and fall times. Furthermore, an integrated current limiting and short-circuit protection device is included to prevent damage to the device from excessive current.

Conclusion

HCPL-2731-520E optoisolators are high-performance digital incremental encoders that provide high speed and high resolution interfaces. They provide a safe transmission of signals between devices, even in high-voltage applications. The device boasts a range of adjustable features for optimal data transmission and switching capabilities, as well as integrated current limiting and protection features for maximum safety and reliability. The HCPL-2731-520E is thus a great choice for a wide range of applications, from automotive and medical imaging to consumer electronics and networking.

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