TPS3808G50DBVRG4

Introduction

The TPS3808G50DBVRG4 is a microprocessor-based supervisor device with the flexibility to work with a wide range of applications. It is a 3.3V or 2.5V power supervisor designed specifically to protect and extend the life of microprocessors and Computer Systems. This integrated Device Control (IDC) supervisor is offered in a 16-lead thin shrink small outline package (TSSOP).

Application Field

TPS3808G50DBVRG4 is a low-cost 3.3V or 2.5V power supervisor providing several protection functions including those related to power system behavior, fault conditions and temperature. This device is best suited for applications which require a reset for most microprocessors, DSP\'s, and FPGAs. It is also suitable for use in application sectors including aerospace and defense, datacom, energy, industrial automation, medical, security and surveillance, transportation, and telecom.

The TPS3808G50DBVRG4 is designed to reset microprocessors, DSPs, and FPGAs that require low-cost properties. Other features include adjustable reset and open drain options, input voltage monitors, power-on reset (POR) delay, programmable reset assertion times, single-wire serial interface, and temperature monitoring. Signal source fault protection, internal temperature monitoring, and protection against overvoltage and undervoltage conditions. Its adjustable reset threshold and open drain feature makes it very universal.

Working Principle

The working principle of the TPS3808G50DBVRG4 microprocessor-based supervisor is to monitor the device’s inputs to detect faults, monitor the internal temperature of the device, reset the microprocessor, DSPs and FPGAs during a fault condition, and provide power-on and power-off signal status. When the microprocessor and other components need to be reset, the TPS3808G50DBVRG4 sends an active open drain signal to the microprocessor and other components. This voltage independent option allows the microprocessor and other components to be reset under various conditions such as power-on sequence, power lost, and error in the input voltage range.

The device monitors the voltage on multiple inputs and provides internal over voltage (OV) and under voltage (UV) protection for the user and system. Overvoltage is detected when the voltage exceeds the programmed threshold, and the UV is detected when the voltage drops below the programmed UV threshold. The TPS3808G50DBVRG4 works together with the power supply to monitor the system and detect errors in order to provide the reset signals.

Conclusion

TPS3808G50DBVRG4 is a beneficial and cost-efficient device designed to protect and extend the life of microprocessors, DSPs, and FPGAs. It features many options, such as adjustable reset and open drain options, input voltage monitors, power-on reset delay, programmable reset assertion times, single-wire serial interface, and temperature monitoring. Its working principle aims to detect faults, monitor the internal temperature of the device, reset the microprocessor, and provide power-on and power-off signal status.