S-80139CLMC-JIYT2U

Power management integrated circuits (PMICs) are a vital component of today’s digital and embedded systems, providing the power conversion and sequencing necessary for functioning in an ever-evolving device landscape. In this context, supervisors such as the S-80139CLMC-JIYT2U, offer assurance that power is delivered to the components in their intended order, while also protecting against shorts, overtemperature and overvoltage situations. This article will cover the S-80139CLMC-JIYT2U’s application field and working principle.

The S-80139CLMC-JIYT2U is a Low Quiescent Current (LQC) Supervisory Circuit that helps to ensure the reliable and safe operation of autoignition, alternator-based charging, power boost, and multi-purpose voltage regulator systems. Specifically, the device ensures that a managed voltage source is regulated from an input voltage range of 2.7V to 13.2V and it can according to a programmable voltage reference to adjust the output voltage to accommodate the needs of the system.

The S-80139CLMC-JIYT2U is used in devices that require a high degree of safety, reliability, and performance. It is especially suitable for automotive applications that require the system to accurately and quickly detect overcurrent and overvoltage conditions. Additionally, with its high linearity and wide voltage range, it can easily be used with both linear and switching regulators.

The S-80139CLMC-JIYT2U is designed to monitor the variation in system voltages, detect overvoltage, undervoltage, and current conditions. It provides an active low reset output for low voltage/high current conditions or an active high reset output when voltage or current falls below acceptable levels. When these conditions are detected, the device will shut down the system until the original conditions are reestablished.

In terms of working principle, the S-80139CLMC-JIYT2U Supervisory Circuit uses two comparators which monitor the input voltage and the adjustable reference voltage. The Voltage threshold of the comparator can be adjusted by connecting a resistor divider network to the REF pin. When the voltage on the REF pin is exceeded, the S-80139CLMC-JIYT2U sends out a low or high active reset signal, depending on the state of the "Active High/Low" pin. The inactive state of the reset signal is controlled by the timer which can be programmed to the desired time duration.

The S-80139CLMC-JIYT2U is an ideal solution for devices requiring reliable and safe power management, such as automotive systems, consumer electronics, and medical applications. Its low quiescent current, wide voltage range, and integrated reset functions make it an ideal choice for use in today’s power management integrated circuits.

In summary, the S-80139CLMC-JIYT2U is a Low Quiescent Current Supervisory Circuit designed to monitor the input voltage of a system and detect overvoltage, undervoltage, and current conditions. It is suitable for automotive systems, consumer electronics, and medical applications due to its wide voltage range and integrated reset functions. Furthermore, its working principle utilizes two comparators to monitor the voltage and adjustable reference voltage, and a timer to control the inactive state of the reset signal.