TPS3124G15DBVT

Power management integrated circuits (PMICs) are used to control and distribute power to the necessary components within an electronic system. In particular, PMIC supervisors, known as power system monitors, are responsible for monitoring voltage, current, temperature, and other variables to maintain the health and proper functioning of the system. The TPS3124G15DBVT is a PMIC supervisor which is used to protect and monitor system voltages, as well as controlling power distribution. Beneath the surface, it is based on the sophisticated ST Microelectronics ST25L04L-R Power System Monitor IC. Let\'s take a look at the application fields for the TPS3124G15DBVT, as well as its working principle.

Application Field

The TPS3124G15DBVT is an ideal power system monitor for applications such as servers and routers, video game consoles, and image display systems. It is also used in standby power conversion systems, as well as in low power card applications such as set-top boxes, infrared transceivers, and payment terminals. The device can be used in conjunction with a system microcontroller to provide protection and power management features.

Working Principle

The TPS3124G15DBVT is designed to protect system voltage and current. It monitors up to five voltage pins, detecting overvoltage, undervoltage and normal events. The device can also detect overcurrent conditions and provide fault signaling through a dedicated output pin. When an overvoltage condition is detected, the supervisor switches off power distribution and enters an overtemperature shutdown protection mode in order to protect the system from further damages.The supervisor is also capable of over-temperature protection by measuring the junction temperature based on an external NTC (negative temperature coefficient) resistor. In order to ensure accurate temperature readings, the device utilizes a unique thermistor-interpolation algorithm.The TPS3124G15DBVT also includes a dual input power supply monitor which monitors the failsafe voltage of the upstream power supply. The supervisor also features a self-test function which periodically monitors the device to ensure proper operation.The TPS3124G15DBVT is a versatile PMIC supervisor which provides safe and reliable voltage and current monitoring, as well as temperature protection. It is a great choice for applications which require reliable and efficient power management.