Output Type:	Transistor
Supplier Device Package:	8-SMD
Package / Case:	8-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	--
Current - DC Forward (If) (Max):	25mA
Voltage - Forward (Vf) (Typ):	1.5V
Current - Output / Channel:	8mA
Voltage - Output (Max):	20V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	--
Turn On / Turn Off Time (Typ):	200ns, 600ns
Current Transfer Ratio (Max):	50% @ 16mA
Current Transfer Ratio (Min):	19% @ 16mA
Voltage - Isolation:	3750Vrms
Number of Channels:	2
Part Status:	Active
Packaging:	Tube

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Optoisolators - Transistor, Photovoltaic Output

Introduction

Optoisolators are devices that provide electrical isolation between two signals while still allowing their electrical transmission. They come in many varieties, each with their own advantages and disadvantages. One popular type is the Transistor, Photovoltaic Output (TPO) Optoisolator, represented by the HCPL-2531#300. This device is mostly used in applications where optical isolation is needed to prevent the electrical spikesOften induced by fluctuations in the external environment from affecting sensitive circuits.

Working Principle

The HCPL-2531#300 optoisolator is a single-channel device that transmits a signal across an electrically isolated boundary using a light emitting diode (LED) as the medium. The LED is energized by the input signal, which then emits light that is interpreted by a phototransistor on the other side of the barrier. The phototransistor amplifies the light, applying a gain to the signal before it reaches the output.The HCPL-2531#300 is a transient voltage surge suppressor (TVSS). It employs two sets of internal diodes, which are connected in series between the input and output lines. During electrical surges, the diode pair acts as a voltage-regulating circuit, limiting the output voltage to 40 Volts. This helps protect the connected equipment from overloads.

Applications

The HCPL-2531#300 is an ideal optoisolator for applications that require strong electrical isolation and good electrical performance. It is suitable for use in AC and DC circuits with both linear and switching AC/DC loads, and can operate effectively over a wide temperature range.The output of the HCPL-2531#300 can be used to drive digital logic devices and other TTL circuits. The device is also useful in integrating a signal source with a circuit board or a system on which the signal source is located.Other applications of the HCPL-2531#300 include communications, automotive, industrial automation, process control, automation, instrumentation and audio/video devices. The device has the capability to control power levels, and is often used in signal transmission for a wide variety of applications.

Conclusion

The HCPL-2531#300 is an ideal optoisolator for applications that require good electrical performance and strong electrical isolation. Its simple construction and wide range of applications make it a great choice for many settings. It provides reliable control of the power level and is also suitable for integrating a signal source with a circuit board. The device is also able to protect circuits from electrical spikes, making it an indispensable tool for many applications.

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