S-1004LB38I-M5T1U

Power Management Integrated Circuit (PMIC) supervisors are semiconductor devices that are designed for embedded systems and monitor and control the power flow of a board-level system. The S-1004LB38I-M5T1U is an under-voltage lockout supervisor designed to protect the board from overvolting or undervolting. The S-1004LB38I-M5T1U is typically used in mission-critical systems where power management expertise is required. It is suitable for voltage regulator modules and systems that light-up LEDs.

The S-1004LB38I-M5T1U is a versatile and comprehensive power management integrated circuit (PMIC). This PMIC supervisor integrates an under-voltage lockout (UVLO) with a single hysteresis point of 2.3V, as well as a power-on reset (POR) circuit. In addition, it features a high accuracy external reference based up/down comparator with logic open collector outputs. The PMIC can be configured to operate in either active-low mode or active-high mode.

The key application field for S-1004LB38I-M5T1U PMIC supervisors is in industrial and automotive, where automated equipment and vehicles need to be protected from damage due to improper power supply, overvoltage, and undervoltage conditions. This device also finds application in Li-ion battery protection, LED power supplies and systems, access control systems, fixed-axis tracking systems, and smart grid solutions.

The PMIC supervisor can be used for a variety of purposes, including monitoring and controlling the power of an embedded system. It is simple to implement, and can be programmed to provide a variety of useful features, such as hysteresis points, adjustable latch time, programmable output type, and programmable delay time. Internally, the supervisor includes a low dropout voltage regulator and a low power comparator to measure the input voltage level and monitor the supply voltage.

The working principle of the S-1004LB38I-M5T1U is quite simple. The PMIC supervisor includes two pins: a voltage sense pin and a reset pin. When the input voltage surpasses the set threshold, the supervisor generates a reset signal. This signal is then sent to the external system, which is usually a microcontroller or other processor, and results in the system resetting its internal registers to the initial values. The PMIC supervisor also provides protection against overvoltage or undervoltage conditions, which can lead to potential damage to important components or the entire system.

In conclusion, the S-1004LB38I-M5T1U PMIC supervisor is a versatile and comprehensive power management integrated circuit that provides overvoltage and undervoltage protection for a wide range of embedded systems. Its primary application fields are in industrial and automotive, and it is an ideal choice for protection of Li-ion batteries, LED power supplies, and access control systems. Its working principle is based on the comparison of input voltage with a set threshold and generation of the reset signal when the threshold is exceeded.