TPS3831K33DQNR

Introduction

TPS3831K33DQNR is a precision digital supervisor from Texas Instruments. The device is designed to meet the needs of various power domains for voltage supervision and reset management. It provides supply voltage monitoring and time-limited reset management functions. It is an ideal choice for applications such as portable devices, laptops, telecom infrastructures, and server control.

Application field

Applications of TPS3831K33DQNR can be divided into two main areas: voltage supervision and reset management. The supervisor provides protection to against unexpected power offs, supply overvoltages, undervoltages or brownouts. The two channels of the supervisor provide adjustable trip voltages and selectable output types that can be used to reset the system or generate an interrupt. It also provides additional features such as overvoltage lockout and programmable timer reset to enhance system reliability.

The TPS3831K33DQNR can be used in a wide variety of applications such as:

• Portable devices such as tablet computers, smartphones, game consoles and remote controls.
• Industrial control applications.
• Computers, laptops, and workstations.
• Telecommunications equipment and networks.
• Office equipment.
• Consumer products.
• Medical equipment.
• Automotive electronics.

Working principle

The TPS3831K33DQNR contains two independent precision voltage supervisors built into one package. Each supervisor has an adjustable trip level and can be used to monitor two different supply voltages independently. Once the supervised voltage reaches the trip level the supervisor will take an appropriate action, such as resetting the system or generating an interrupt.

The supervised voltage ranges can be selected using two control input pins and can be set to 2.25V, 2.9V or 3.6V. TheTrip/ Reset delay time can be controlled using the Delay pin. The supervisors will generate an open-drain output based on the setting of the Reset/ Reset mode pins. The output types can be used to reset the system by either pulling the reset line low or generating an interrupt request.

The supervisor also features an overvoltage lockout feature that prevents the monitored voltage from going higher than 4.6V. This feature prevents the system from overvoltaging and helps to ensure reliability. In addition, the supervisor features a programmable timer reset feature that can be used to reset the system after a given time interval if the voltage is not restored within that time.

Conclusion

The TPS3831K33DQNR is a precision digital supervisor from Texas Instruments. It is designed to meet the needs of various power domains and provides supply voltage monitoring and time-limited reset management functions. Applications of TPS3831K33DQNR can be divided into two main areas: voltage supervision and reset management. The supervisor provides protection against unexpected power offs, supply overvoltages, undervoltages, or brownouts. The supervisor also features an overvoltage lockout feature and a programmable timer reset feature to further increase system reliability.