TPS3513D

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The TPS3513D is a low-power microcontroller supervisor designed by Texas Instruments. It serves as the ideal solution for maintaining safe operation of microcontroller-based systems, including those found in audio/video and consumer electronics products. The device can be used to monitor several critical voltages, as well as system-level conditions such as temperature and clock signals. It features an adjustable voltage threshold, active-low reset, and active-low manual reset with adjustable timeout. In addition, it includes a safety monitor to ensure that all monitored conditions stay within safe ranges.

The TPS3513D is intended for systems that require active monitoring of the power supply voltage, CPU clock, temperature, and other system-level conditions. It is designed to actively detect system failures and immediately issue an active-low reset output or manual reset request. It can be used to monitor and assert a reset when voltage falls below an adjustable threshold. It also has a programmable reset timeout as long as 15 seconds so system can recover from power faults without requiring manual intervention.

The TPS3513D features a wide range of programmable features. The voltage threshold can be programmed from 1.2V to 3.6V in 0.05V increments for monitoring of power supplies in portable electronics and other applications requiring precise control of power supply status. Additional programmable features include programmable pull-up/pull-down current on reset pin, programmable reset timeout, and programmable reset monitor enable/disable. The device is also available in a space-saving 3-pin SOT23 package.

The TPS3513D is an effective way to offer security and ensure system integrity in a wide range of electronic products. Its primary application fields include audio/video systems, computers, digital cameras, portable devices, server systems, automotive/industrial products, and other products where protection against power failure is necessary. It can be used as a primary backup in systems with multiple power supplies or backup systems for single-power-source systems. Additionally, it can be used as part of a system\'s safety monitoring scheme to detect and respond to a wide range of system-level conditions.

The TPS3513D operates from an external supply voltage of 3V to 5.5V and has a low operating current of just 9.5µA (typical). This makes it suitable for implementing standby power-saving modes in operations that require active monitoring of the power supply and other system-level conditions. Furthermore, the device features very low power down modes with a maximum current of 40nA to ensure system integrity in the event of power failure.

The TPS3513D works by constantly monitoring the supply voltage and clock signal, as well as any other conditions set by the user. These conditions can be configured and programmed using the dedicated RESET pin. When the monitored conditions are outside the predetermined range, the TPS3513D immediately asserts an active-low reset output, causing the system to shut down, thus protecting the system from damage or data loss. The device can also be set to optionally issue a manual reset request to the processor. In this case, the processor will initiate a reset process and the TPS3513D will stay active until the process is complete.

In addition to its monitoring functions, the TPS3513D can also be used to monitor the temperature of a system. The device is equipped with a built-in thermistor located on the DSBGA package allowing for easy and accurate temperature monitoring. When the monitored temperature exceeds a predetermined level, the device will assert a reset signal and the system will shut down.

The TPS3513D is an ideal microcontroller supervisor device for ensuring the safe operation of microcontroller-based systems. With its rich set of features, adjustable voltage threshold, reset output, and temperature monitoring, the TPS3513D provides the perfect solution for maintaining system integrity in a wide range of applications. It is available in a 3-pin SOT23 package and provides an optimal balance between size, power consumption and performance.

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