TPS3813K33DBVT

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	20 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SOT-23-6
Supplier Device Package:	SOT-23-6
Base Part Number:	TPS3813K33

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Introduction

TPS3813K33DBVT is a digital supervisor module from Texas Instruments, and it is part of the System Basis Chips (SBC) family. This supervisor module is a highly integrated, low-power module that provides system design flexibility and ease of implementation for embedded systems. It is specifically designed for system standby and backup power management, and provides designers with the ability to lower system power and improve device monitoring and protection. This module is widely used in critical embedded system designs in industrial, automotive, medical, and consumer markets.

Functionality

The TPS3813K33DBVT is a single-chip ultra low-power supervisor that monitors system supply voltage and provides an accurate reset during power up, power down and system fault conditions. This module is designed to provide quick response time to any system power fault that may occur. It also monitors system low-voltage conditions and has individually adjustable voltage thresholds for reset and reset lockoff, providing a high degree of system reliability and safety.The TPS3813K33DBVT provides system designers with a wide range of features that can be customized to meet specific system requirements. The module includes an adjustable voltage threshold for reset, adjustable windowed watchdog timer, adjustable VBAT monitoring, and pause mode for slow processor power-on. Additionally, the module’s status flag detection feature allows for system-specific diagnostic monitoring capabilities.

Application Field

TPS3813K33DBVT is suitable for a wide range of applications, including industrial, automotive, computer, consumer and telecommunications systems. This module is especially used in critical embedded system designs due to its ability to quickly respond to any system power fault that may occur. Its high degree of system reliability and safety is suitable for any system that requires reliable and accurate power management.

Working Principle

The TPS3813K33DBVT module is designed to monitor system supply voltages and quickly respond to any system power fault that may occur by issuing a reset signal. The wide range of features allows the module to be customized to meet specific system requirements. The module includes an adjustable voltage threshold for reset, adjustable windowed watchdog timer, adjustable VBAT monitoring, and pause mode for slow processor power-on.When the voltage supplied by the voltage regulator becomes too low, the module will issue a reset signal. The reset threshold is determined by an external resistor divider, which is connected to a voltage monitor that detects the difference between the given threshold voltage and the monitored voltage. When the monitored voltage is greater than the threshold voltage, the reset signal is issued.The windowed watchdog timer monitors the system activity and will reset the system if it is not performing correctly. The adjustable VBAT monitoring feature monitors the system battery voltage and issues an interrupt when the voltage drops below a given level. The pause mode feature is used to slow the processor power-on sequence, allowing for a more efficient power-up cycle.

Conclusion

The TPS3813K33DBVT is a highly integrated single-chip ultra low-power supervisor module from Texas Instruments that is suitable for a wide range of applications. This module is designed to provide quick response times to any system power fault that may occur, with adjustable voltage threshold for reset, adjustable windowed watchdog timer, adjustable VBAT monitoring, and pause mode for slow processor power-on. It is perfect for critical embedded system designs due to its high degree of system reliability and safety.

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