TPS389015DSER

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The use of PMIC - Supervisors, such as the TPS389015DSER, is increasingly seen in many types of applications, from industrial equipment to consumer products. These devices offer safety, protection and reliability for complex systems, with features such as power management, protection and system control, allowing for easy integration and interface connections with microcontrollers and other components. In this article, we will take a look at the application fields and working principle of the TPS389015DSER.

The TPS389015DSER is a Power Management IC (PMIC) that includes a Supervisor and a Power Slave Device (PSD), offering both voltage detection and power reset functions. It supports a wide range of applications, including mobile computing, servers, laptops, tablets, and other embedded systems. It can provide system power protection and system reset in the event of a variety of short-term and long-term faults, improving reliability and reducing cost.

The Voltage Detection (VD) feature of the TPS389015DSER is designed to provide early warning of low detected input voltage, allowing system designers to react accordingly. This is achieved by monitoring input voltage levels through a programmable VD comparator. The adjustable threshold levels of the VD comparator, along with an adjustable delay timer, allow for customisation and flexibility for system designers. Additionally, the device also provides a digital output, allowing for status monitoring by signal connection to the system’s micro-controller.

The PSD feature of the TPS389015DSER is used to monitor the system’s power supply and provide an adjustable system reset if the power supply is disrupted. This feature is especially useful for resetting the system after power outages and in the event of a brownout, allowing for controlled system reboots. The PSD circuit has an adjustable reset threshold and a programmable low-voltage detect (LVD) circuit. The adjustable reset threshold allows for a user-defined reset level, while the LVD circuit is used to trigger a reset when the voltage detected is lower than the programmable threshold. The PSD feature also includes a timer, allowing the user to set a delay between the reset signal being asserted and the reset being completed.

When the system requires additional safety or protection, the TPS389015DSER also offers a range of additional features, such as over-voltage protection and junction temperature protection. The over-voltage protection monitors the input voltage and asserts a signal to indicate if the voltage is out of range. The junction temperature protection monitors the die temperature of the IC, and can be used to actively shut off power supply or signal GPIO if the temperature exceeds a certain level.

Overall, the TPS389015DSER is a highly versatile and feature-rich device, capable of providing safety and protection for a wide range of applications. It offers programmable features for voltage monitoring, resetting and system protection, allowing for customisation and flexibility for system designers. Additionally, the device also supports junction temperature monitoring, enabling the protection and safe shut down of the system in the event of excessive temperatures.

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