TPS3123G15DBVR

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PMIC (power management integrated circuit) is an integrated circuit that manages power in a number of ways. Power management integrated circuits are critical components in electronics systems, helping to reduce power consumption and improve overall system reliability. Supervisors are one type of PMIC that specializes in monitoring power supply voltages and triggering reset signals during power abnormalities. One example of this type of PMIC is the TPS3123G15DBVR from Texas Instruments.

The TPS3123G15DBVR is an overvoltage, undervoltage reset supervisor with signal conditioners and an integrated low-power voltage monitor. The device has a number of features that make it suitable for power-failure protection and system reset for a variety of applications. This includes an adjustable pull-in/pull-out threshold window, adjustable reset time delay, adjustable reset timeout, an active-high output signal and latched over voltage flag that can be set from 2.2V to 7.5V.

The TPS3123G15DBVR is ideal for use in a wide range of applications, such as personal computers, servers and other systems that require reliable operation in the face of power changes. It can also be used in industrial automation, data communication and other critical systems that may require reset due to power failure or voltage changes.

The TPS3123G15DBVR has a unique design that enables it to accurately monitor the system input voltage and send reset signals when the voltage exceeds predetermined limits. This is achieved through a two-stage voltage monitor, combined with a signal conditioner, a noise filter and a comparator. The signal conditioner converts any signal of frequency up to 10MHz into a voltage level that can be read by the comparator. The comparator then compares the voltage signal to a pre-set value, and triggers the reset if the input voltage signal exceeds the set limit.

The TPS3123G15DBVR also has a power-on reset (POR) circuit with programmable delay, which is used to ensure proper initialization of the system after power is applied. This allows the reset signal to be held until the system reaches the correct operating conditions. The POR can be disabled if desired, allowing the reset signal to be triggered as soon as the power fails.

In addition, the TPS3123G15DBVR includes an adjustable reset time delay. This feature helps to reduce nuisance reset events, as the reset signal will only be triggered after the set delay. This helps improve system reliability. Furthermore, the device includes input hysteresis, which minimizes the effects of noise by ensuring the voltage difference between input valid and invalid levels is sufficient to allow reliable operation.

Overall, the features of the TPS3123G15DBVR make it a great choice for applications that require reliable power reset and monitoring. The adjustable pull-in/pull-out threshold window, adjustable reset time delay, adjustable reset timeout, and active-high output signal make the chip suitable for a wide range of applications, including personal computers, servers, industrial automation systems, and data communication systems. The integrated low-power voltage monitor and input hysteresis ensures reliable operation, while the POR circuit helps ensure proper system initialization.

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