TPS389018DSER

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PMIC Supervisors control and monitor the power rail signals of an application or system, providing protection against unexpected power or reset defects during a power cycle or voltage spike. The TPS389018DSER is a dual-channel, low power supervisor which is designed to ensure that the power is distributed safely and efficiently to the different components of a system. It is the first specific device made to enable advanced power management and system integration.

TPS389018DSER is especially suitable for consumer electronics such as smartphones, media players, and tablets. It is also compatible with other consumer devices, such as routers, set-top boxes and gaming consoles. The TPS389018DSER contains a built-in voltage monitor, power-on reset (POR), and watchdog timer which can be used to detect any power anomalies or voltage anomalies and reset the system to protect it against unexpected power or reset faults.

The TPS389018DSER is based on a supervised linear regulator architecture. The device consists of two independent, programmable voltage monitors with each having selectable thresholds, programmable delay times, and interrupt/reset output. The first channel is used to control power-on sequencing, while the second channel is used to detect system reset events triggered by input voltage and power-on reset conditions. The POR functionality of the TPS389018DSER ensures the conditions of safety and reliability during a power transit to application.

The POR circuit monitors the power rail voltage and generates a reset signal when the voltage drops below the POR threshold level for a specified period of time. This ensures that the system is reset to known conditions before any further power-on sequence is initiated. The watchdog timer circuit also monitors for voltage and power anomalies, and resets the system when the voltage exceeds a programmable threshold, or when the system\'s status is not returned after a certain period of time. The POR and watchdog circuits are designed to protect from the sudden and momentary voltage drops or surges, while allowing the system\'s operation to be continued normally.

The TPS389018DSER provides a very low quiescent current in its standby state, and requires little power to operate. This helps to reduce power consumption and extend the battery life of mobile devices. Additionally, the device provides a wide supply voltage range and is suitable for both 1.8V and 3.3V DC supplies, making it suitable for a wide range of applications.

The TPS389018DSER is designed to provide system-level monitoring and protection. As a supervisor, it monitors the power rail, and if any voltage anomaly or reset event is detected, it will generate a system reset. This ensures that the system functions correctly and reliably even in the presence of unexpected power or reset faults.

The TPS389018DSER is an excellent choice for applications that require efficient and reliable power management and system protection. It offers low quiescent current to help reduce power consumption, and its wide voltage range makes it suitable for a wide range of applications.

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