TPS3305-18DGNG4

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	2
Output:	Push-Pull, Totem Pole
Reset:	Active High/Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	1.68V, 2.93V
Operating Temperature:	-40°C ~ 85°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package:	8-MSOP-PowerPad
Base Part Number:	TPS3305-18

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Introduction

TPS3305-18DGNG4 is a programmable voltage supervisor IC which is developed by Texas Instruments. It can be used/applied in many power management applications as a supervisor, to monitor the voltage levels of all types of devices, in order to ensure their safe operation and prevent possible damage due to power supply errors. It is a single-channel device with a programmable reset threshold, hysteresis, and reset timeout. It also has a push-pull type power-on reset output signal, and an open-drain active-low manual reset input.The main features of TPS3305-18DGNG4 include low power consumption, high accuracy (+/-1.5% accuracy of reset threshold voltage), low cost, small form-factor, and low current consumption. It also offers multiple reset timing profiles, with differing hysteresis and timeout settings. All these features of the TPS3305-18DGNG4 make it suitable for use in a wide range of applications, such as in automotive, industrial, and home appliance applications.

Application Field

The TPS3305-18DGNG4 programmable voltage supervisor has a wide range of applications. It is used to provide an accurate and reliable monitoring of the supply voltages of multiple types of devices, and to ensure that they remain within a safe range when the power supply voltage level of the chip is exposed to fluctuations, or when the load current changes or increases suddenly. For example, it can be used in automotive applications, to protect the car\'s electronic systems from unexpected voltage fluctuations, by monitoring the supply voltages of the car\'s electronic systems, and triggering a reset when the monitored voltage level is out of range. It can also be used in industrial and home appliance applications, to protect the devices from voltage level fluctuations and overvoltage.The TPS3305-18DGNG4 voltage supervisor also offers a great level of flexibility, with programmable reset thresholds and hysteresis, allowing users to tailor its features to their specific application’s requirements.

Working Principle

The TPS3305-18DGNG4 programmable voltage supervisor operates by comparing the input voltage with a programmable voltage threshold. When the voltage level of the supply voltage decreases or increases, the voltage supervisor compares the current voltage level with the set threshold, and triggers an output signal when the voltage level is out of the range. The reset threshold of the TPS3305-18DGNG4 voltage supervisor can be easily programmed using the two resistors connected to its two external pins, allowing users to customize its features to their specific application\'s requirements. The settings of the threshold voltage can also be changed with a voltage programming feature, where the threshold voltage can be adjusted by applying different input voltages.The TPS3305-18DGNG4 also offers an adjustable hysteresis which can be used to prevent unnecessary resetting due to short voltage spikes. Once the input voltage is outside the programmable threshold voltage, an output signal is triggered. This output signal can then be used to reset the device. The timeout feature of the TPS3305-18DGNG4 can also be programmed, allowing the device to remain in the reset state for a certain period of time before triggering a new output signal.

Conclusion

In conclusion, the TPS3305-18DGNG4 is a programmable voltage supervisor that can be used in a wide range of applications to monitor the voltage levels of multiple types of devices and ensure their safe operation. It offers high accuracy, low power consumption, and a great level of flexibility, with adjustable reset thresholds, hysteresis, and reset timeout settings. All of these features make the TPS3305-18DGNG4 a perfect choice for any power management application.

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