MIC2790N-04VD6-T5

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PMIC (Power Management Integrated Circuit) is a virtual powerhouse of electrical or electronics device, especially those used in consumer electronics. PMICs employ varied architectures with varying functional blocks and integrate in-depth understanding of power management circuits to improve the efficiency, reliability, scalability, and manageability of various electronic products in consumer, automotive, industrial and communication applications. Supervisors are integrated circuit protection solutions designed to protect system-level components and maintain system integrity. Typical states that supervisors protect against are system reset, brown-out detection (BOD), power-on reset (POR), power failure detection (PFD), clock failure detection (CFD), system voltage monitoring, reset distribution, and fault tolerance.

The MIC2790N-04VD6-T5 is an 8-pin supervisory solution from Microchip Technology which offers a range of features required for industrial, consumer, and medical applications. This advanced device provides system reset, power sequencing for core and I/O supplies, power fail detect, over-voltage detect, and thermal reset functions without requiring external components. It combines 10V, 3.8V, and 2.5V low-voltage reset windows in a single device, making it the ideal solution for multiple voltage applications.

The MIC2790N-04VD6-T5 is designed to provide protection against system reset, voltage transients and thermal fault conditions, thereby ensuring reliable operation and system integrity. It offers 8-pin nano-WDFN package, with speeds up to 10MHz, operating temperature range from -40°C to 125°C, an adjustable 5.5V reset, and both active-low and active-high power reset outputs. In addition, the device provides an adjustable delay (10 µs to 10 s) for system reset, hysteresis and fault timer limits, an active low output for voltage monitor, and deboucing.

In terms of working principle, the MIC2790N-04VD6-T5 incorporates multiple functional blocks that enable it to perform as a supervisor. These functional blocks enable the device to detect fault conditions and respond in predetermined ways, including resetting the system or turning off power sources. The basic architecture of the device consists of a reset generator, an active low output (AFA), a delay generator (TIMER), and a temperature monitor, which together comprise its main functionality.

The reset generator is responsible for detecting and responding to the preset fault conditions and will initiate a reset signal if any of them occur. It will raise the reset line by a voltage which is typically higher than the highest operating voltage of the device and will hold it there until the fault is cleared or the enable input is held low. The AFA monitors the operational voltage of the IC and will provide an active low output when the voltage drops below the set threshold. The delay generator is responsible for delaying the reset signal for a certain amount of time, allowing the other functional blocks time to respond to conditions as needed, as well as providing a debounce function for bouncing signals which are not consistent with the expected patterns. Finally, the temperature monitor is responsible for shutting down the system and supplying the reset signal if the temperature rises to an unacceptable level.

The MIC2790N-04VD6-T5 is ideal for use in industrial, consumer, and medical applications which require reliable monitoring and fault protection. It\'s low-voltage reset windows, fast speeds, and adjustable delays ensure reliable operation in a variety of applications. It is well-suited for systems that supply diverse voltage levels, and its temperature monitor provides additional system protection. Overall, the MIC2790N-04VD6-T5 is an ideal choice for any application requiring reliable supervisory functions.

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