T6819-TBSY

Voltage - Supply (Vcc/Vdd):	4.75 V ~ 5.25 V
Base Part Number:	T6819
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 150°C (TJ)
Fault Protection:	Current Limiting (Fixed), Open Load Detect, Over Temperature, UVLO
Features:	--
Input Type:	--
Rds On (Typ):	500 mOhm
Current - Output (Max):	1.5A
Series:	--
Voltage - Load:	5.6 V ~ 40 V
Interface:	SPI
Output Type:	N-Channel
Output Configuration:	High Side or Low Side
Ratio - Input:Output:	1:6
Number of Outputs:	6
Switch Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The T6819-TBSY is a power distribution switch from Texas Instruments (TI). It is a low on resistance, non-isolated device that can be used to distribute power to various components in an electrical system. It offers a wide range of features which make it suitable for a wide variety of applications. This includes its low on resistance, high switching speed, low voltage drop, and low power consumption. It also offers an adjustable current limit, variable control input, and adjustable thermal protection.

Applications

The T6819-TBSY can be used in a number of applications in multiple industries. In the automotive sector, it can be used as a power distribution switch for vehicle accessories such as audio systems, navigation systems, and interior lighting. It can also be used in industrial control systems, commercial lighting systems, emergency power systems, and security systems. Additionally, it can be used as part of a backup power system or as an alternative power source for emergency situations.

Working Principle

The T6819-TBSY features a two-level voltage control mechanism. It is an open-drain device that relies on the input voltage to open or close the switch. When the input voltage is between the low and high voltages, the device will turn on, allowing current to flow through the switch. When the input voltage is greater than the high voltage limit, the switch will turn off, depriving the resulting load of current. Once the switch has opened or closed, the device can maintain its state as long as there is a voltage difference between the low and high limits. On start-up, the switch either sets the low voltage or the high voltage limit, depending on the voltage levels of the respective inputs. The device is also equipped with a number of protective features to ensure that it does not overheat and causes a system malfunction. It is fitted with a thermal protection circuit that prevents the switch from becoming too hot. It also features an adjustable current limit that reduces current if it reaches a certain level, and an adjustable reset signal that can trigger a shutdown in the case of an overvoltage or overcurrent situation.

Conclusion

The T6819-TBSY is a power distribution switch from Texas Instruments that can be used in multiple industrial applications. It has low on resistance, high switching speed, and low voltage drop, and features an adjustable current limit, variable control input, and adjustable thermal protection. It is equipped with a two-level voltage control mechanism and relies on the input voltage to open or close the switch. Additionally, it is fitted with a number of protective features to ensure that it does not become too hot or cause a system malfunction. The T6819-TBSY power distribution switch from Texas Instruments is an ideal device for a wide range of industrial applications. It is a reliable, low-cost solution for distributing power to different components in an electrical system.

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