TLP385(D4BLLTL,E

Series:	--
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	200% @ 5mA
Current Transfer Ratio (Max):	400% @ 5mA
Turn On / Turn Off Time (Typ):	3µs, 3µs
Rise / Fall Time (Typ):	2µs, 3µs
Input Type:	DC
Output Type:	Transistor
Voltage - Output (Max):	80V
Current - Output / Channel:	50mA
Voltage - Forward (Vf) (Typ):	1.25V
Current - DC Forward (If) (Max):	50mA
Vce Saturation (Max):	300mV
Operating Temperature:	-55°C ~ 110°C

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Introduction

The TLP385(D4BLLTL) is an opto-isolator, which is a transistor-photovoltaic output device used to electrically isolate two processes while providing an analog or digital data signal. It takes the electrical signals from the input side and converts this electric energy into light energy, which can then be sent to the output side. The opto-isolator both prevents the electrical noise and avoids contact between the two circuits. This is vital in the engineering world because faulty contact, sparks, or voltage drops from external circuitry can be very disruptive and dangerous for the system. In addition to its high insulation resistance, the TLP385(D4BLLTL) also provides a bidirectional communication, which is essential for analog monitoring and control tasks.

Application Field

The optoisolators are widely used in power management and control systems due to their high level of insulation and their ability to transmit signals. The TLP385(D4BLLTL) can specifically be used in a variety of industrial automation tasks, such as in power switching circuits, motor controllers, and inductive loads. They can also be used for the detection of position and speed in motorized systems, as well as for optical digital communication links for data acquisition. It is also useful in the development of high frequency switching circuit designs, high voltage switching applications, and for the protection of circuits from electromagnetic interference (EMI).

Working Principle

The TLP385(D4BLLTL) operates by receiving electrical signals from the input side and converting this electrical energy into light energy. This light energy is then transmitted through an optically-isolated barrier to the photovoltaic output. The photovoltaic output then converts this light energy back into electricity and delivers it to the output side. The optoisolator is capable of bidirectional communication due to the two photovoltaic output legs, which both deliver electrical signals independently. The opto-isolator is also equipped with internal insulation and isolation circuits to effectively block external electrical noise. This ensures that any electrical signals from the input side are not disturbed by any random electric signals from the outside. This allows the TLP385(D4BLLTL) to provide reliable and stable electrical isolation between the input and output sides.

Conclusion

The TLP385(D4BLLTL) is a versatile and reliable opto-isolator which can be used for various industrial automation tasks, such as power switching, motor controllers, and inductive loads. It provides a high level of insulation and bidirectional communication, and is also equipped with an internal insulation and isolation circuit to block external electrical noise. This ensures that the electrical signals from the input side are not disrupted by any external electrical signals from the outside, thereby providing reliable and stable electrical isolation between the input and output sides.

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