TPS3307-18QDRG4Q1

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC supervisors provide vital protection for integrated circuits (ICs) in an array of systems, keeping the circuit safe and reliable against power supply and other operational disturbances. Among them, the TPS3307-18QDRG4Q1 is an 18V supervisor IC (SIC) specially designed for use in 5V systems. This SIC offers extended Reset and Manual Reset hold times for improved power supply stability and reliable circuit protection. This article provides a description of the TPS3307-18QDRG4Q1 application field and working principle.

Application Field

The TPS3307-18QDRG4Q1 belongs to Texas Instruments\' TPS330xx family of voltage supervisors and is made in a 6-pin SON package. Designed to protect 5V systems, the SIC is capable of monitoring up to two supply lines with a wide range of operation voltages. With a trip point between 4.63V and 5.5V, the TPS3307-18QDRG4Q1 will reset the system once the supply voltage drops below the threshold. Resetting the system ensures that the system can operate normally or enter a safe mode.

Moreover, the TPS3307-18QDRG4Q1 also has a hysteresis feature which helps to prevent false overtemperature triggers. This hysteresis levels the output signal to ensure the reliable function of the system and preserve the correct conditions for operation. The TPS3307-18QDRG4Q1 is suitable for applications such as power supplies, disk drivers, set-top boxes, as well as communications, automotive, and industrial equipment.

Working Principle

The TPS3307-18QDRG4Q1 combines a voltage supervisor and manual reset circuit on a single monolithic die that disables any output signal until a valid supply voltage is detected, helping to provide precise control over external RESET signal in a variety of systems. When an external reset signal is applied, the RESET output signal is activated and deactivated after a fixed amount of tRESET time.

The working of TPS3307-18QDRG4Q1 is based on a voltage supervisory circuit with power-up, power-down and error detection. During power-up, the TPS3307-18QDRG4Q1 begins monitoring the supply voltage to ensure that it is within the correct range for the output signal to remain active. The RESET output remains low until the supply voltage reaches the selected threshold. When the supply voltage exceeds the threshold, the RESET output toggles high, and the SIC will begin monitoring the voltage fall rate. Shortly thereafter, the RESET output goes low and the system begins the reset process.

During power-down, the TPS3307-18QDRG4Q1 monitors the supply voltage to ensure that it does not exceed the falling threshold. If the voltage does exceed the falling threshold, then the RESET output toggles low, and the system will remain in reset until the supply voltage drops below the falling threshold. Once the voltage is below the falling threshold, the RESET output toggles high and the system is released from reset.

The TPS3307-18QDRG4Q1 also monitors the supply voltage for abnormal operating conditions such as voltage surge and undershoot. If the monitored voltage falls outside the operating range, then the RESET output will toggle low, indicating an error. The error output is passed on to an infrared protection circuit where it will turn off the power and reset the system. This helps to protect other components in the system from being damaged by the overvoltage.

In addition, the TPS3307-18QDRG4Q1 also has manual reset capability, which allows the system to enter reset state on user command. When the manual reset pin is pulled low, the RESET output will toggle low, signaling the system to enter reset state. The manual reset pin must then be pulled high for the output to toggle high and for the system to be released from reset.

Finally, the TPS3307-18QDRG4Q1 comes with strong second-source characterization capabilities. It will reduce time-to-market and minimize design time by providing assurance that the same design works across different SIC\'s from different suppliers. This eliminates the need for costly redesign when sourcing from a different manufacturer, thus increasing the chances of successful product introduction.

In conclusion, the TPS3307-18QDRG4Q1 voltage supervisor is a reliable and dependable device, providing protection to a wide range of applications. With its wide range of features and capabilities, the TPS3307-18QDRG4Q1 is the ideal SIC for any system requiring reliable and reliable supply voltage monitoring.

The specific data is subject to PDF, and the above content is for reference