TLP161G(TPR,U,C,F)

Current - On State (It (RMS)) (Max):	70mA
Approvals:	UR
Supplier Device Package:	6-MFSOP, 4 Lead
Package / Case:	6-SOIC (0.173", 4.40mm Width), 4 Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 100°C
Current - DC Forward (If) (Max):	50mA
Voltage - Forward (Vf) (Typ):	1.15V
Turn On Time:	--
Current - Hold (Ih):	600µA (Typ)
Series:	--
Current - LED Trigger (Ift) (Max):	10mA
Static dV/dt (Min):	200V/µs
Voltage - Off State:	400V
Voltage - Isolation:	2500Vrms
Number of Channels:	1
Zero Crossing Circuit:	Yes
Output Type:	Triac
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Optoisolators - Triac, SCR Output devices provide a cost-effective solution for isolating electrical signals between two or more electrical circuits. Isolating signals have become essential for protecting both voltage and current levels. The TLP161G, one such optoisolator, is a Triac, SCR Output, featuring an LED emitter and a photodiode, and can be used to trigger a controllable switch such as a Triac. This article will discuss the application fields and working principle of the TLP161G.

Application Fields

TLP161G optoisolators are used in a variety of applications including industrial motor control, lighting control, and HVAC control. In motor control applications, the TLP161G can be used to control the speed and torque of a motor, as well as to protect against overcurrent and open phase conditions. In lighting control applications, the TLP161G can be used to switch on and off the power supply for a particular lighting load. In HVAC applications, the TLP161G can be used to control the temperature of a space, the fan speed, and the humidity.

Working Principle

The TLP161G is a Triac, SCR Output optoisolator, designed to isolate electrical signals between two or more electronic circuits. It works by utilizing a light-emitting diode to transmit an electrical signal, and a photodiode to receive the signal. The LED provides current pulses which are used to activate the photodiode and in turn activate a Triac.The TLP161G features a continuous forward current from 10mA up to 50mA and a load current of up to 8A. The maximum forward voltage of the LED is 3V and the optoisolator also has an isolation voltage of 5kV. When the LED is turned on, its current will flow into the photodiode, activating the Triac. When the LED is turned off, the current will cease and the Triac will deactivate.

Conclusion

The TLP161G is an effective and cost-efficient optoisolator. It provides isolation between two or more electrical circuits, and is used in a variety of applications including industrial motor control, lighting control, and HVAC control. The TLP161G works by using an LED to activate a photodiode, which in turn activates a Triac. With its forward current capabilities up to 50mA and its load current up to 8A, the TLP161G an ideal choice for a wide range of applications.

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