6N138V

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Number of Channels:	1
Voltage - Isolation:	2500Vrms
Current Transfer Ratio (Min):	300% @ 1.6mA
Current Transfer Ratio (Max):	--
Turn On / Turn Off Time (Typ):	1.5µs, 7µs
Rise / Fall Time (Typ):	--
Input Type:	DC
Output Type:	Darlington with Base
Voltage - Output (Max):	7V
Current - Output / Channel:	60mA
Voltage - Forward (Vf) (Typ):	1.3V
Current - DC Forward (If) (Max):	20mA
Vce Saturation (Max):	--
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP
Base Part Number:	6N138

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Introduction

Optoisolators are optoelectronics devices, also referred to as optocouplers, designed to provide electrical insulation between two circuits while simultaneously transferring data or power. This article will focus on a Transistor output Photovoltaic Optoisolator, the 6N138V and explore the 6N138V application field and working principle.

Application Field

The 6N138V is a standard Photocoupler suitable for logic interface circuit, which is a 270-mA continuous current type optoisolator, and it uses an AlGaAs LED as its light emitting diode (LED). The 6N138V has a transformer output, which is isolated from the input, resulting in high noise immunity and strong circuit protection. Its high speed response and low power consumption make it an ideal device for applications including switching, sensing, and pulse shaping.The 6N138V can be used in applications such as gate drive circuit, level transmitter circuit, audio amplifier, etc. In gate drive circuit applications, it can be used to control gate voltage level by isolating control circuits from voltage level being switched. In level transmitter circuit applications, it can isolate analog signals from system environment and transfer signals to the control circuit. In audio amplifiers, the 6N138V can be used for signal isolation between audio components.

Working Principle

The 6N138V is a Photovoltaic Output Optoisolator. It works by capturing light from the LED side and converting it into electrical signals on the transistor side.The 6N138V consists of two parts, an LED and a phototransistor. The LED emits light when the input (signal) is applied, the light impinges on the phototransistor, and the phototransistor converts the light into electrical signals. The output (transistor) side of the Optoisolator is isolated from the input side and, thus, it provides electrical protection from voltage spikes, short-circuits, and other electrical disturbances. To summarize, the 6N138V is an optoisolator, a general-purpose photovoltaic optoisolator with a transistor output, which is designed for logic interface circuits. Its applications include gate drive, level transmitter, and audio amplifier circuits, and its working principle is based on capturing light from the LED side and converting it into electrical signals on the transistor side.

Conclusion

The 6N138V is an optoisolator designed to provide electrical insulation between two circuits while simultaneously transferring data or power. It can be used for a wide range of applications, from gate drive circuit, level transmitter circuit, and audio amplifier to signal isolation between audio components. The 6N138V works by capturing light from the LED side and converting it into electrical signals on the transistor side. This article discussed the 6N138V application field and working principle.

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