TPS3707-30DGNR

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Power management integrated circuits (PMICs) constitute a critical component of any electronic system. As the number of power sources and microcontrollers proliferate in portable embedded systems, PMICs are becoming increasingly important in maintaining system performance and power integrity. PMICs are systems that provide the safety and reliability of a power system. PMICs can be divided into three categories: converters, linear regulators and supervisors. The TPS3707-30DGNR is a supervisor of a PMIC. It is specifically designed to monitor and maintain the power supply stability of systems monitored through 3V to 3. 6V, or 2. 7V to 5. 5V.

Applications Field of TPS3707-30DGNR

TPS3707-30DGNR supervisors have a wide range of applications in the electronics industry. They are commonly used in automotive, industrial, medical and consumer electronics applications. These supervisors are particularly suited for battery-powered systems, which must maintain system stability and power integrity despite frequent changes in input voltage.

TPS3707-30DGNR supervisors can also be used for reset generation and current monitoring that requires a large number of output signals. This supervisor can provide up to five reset outputs to monitor individual components. The large number of output signals makes the TPS3707-30DGNR a suitable device for systems with multiple power sources, such as those found in embedded systems.

Working Principle of TPS3707-30DGNR

The TPS3707-30DGNR supervisor incorporates two independent components: a voltage supervisor and a voltage monitor. The voltage supervisor is responsible for monitoring the voltage of the system and generating a reset signal when the voltage falls outside of the programmed limits. The voltage monitor is responsible for observing the board environment and has internal and external components. The voltage output of the voltage monitor is conditioned and divided by a resistor network and presented to the analog comparators, where it is compared to the external voltage provided for monitoring.

The TPS3707-30DGNR has an adjustable time-out period that can be programmed with a simple resistor network. This allows the supervisor to reset the system after a pre-defined time delay. A power-on reset circuit is also present to provide system stability when the voltage is below the programmed reset level. Additionally, the TPS3707-30DGNR has an active-low delayed reset for system stability when powering up.

The TPS3707-30DGNR also has an internal thermal shut-off circuit to protect against catastrophic failure due to extreme temperatures. This circuit shuts the supervisor off before the temperature reaches the maximum temperature limit. Furthermore, the TPS3707-30DGNR incorporates a power-down output that can be used to turn off the system when it is no longer needed, helping to conserve power and maintain system stability.

The TPS3707-30DGNR supervisor provides a robust approach to monitoring and maintaining system stability and power integrity for battery-powered systems. It incorporates multiple features, including voltage monitoring, reset generation, current monitoring, thermal shutoff, and power down. This supervisor can be used in a variety of applications and works reliably in a wide range of input voltage conditions. It is a suitable solution to providing system stability in embedded systems with multiple power sources.

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