MPQ6411GS-33 Datasheet/PDFPMIC - Supervisors, like the MPQ6411GS-33, are used to monitor integrated circuits, such as microprocessors, and provide protection against device malfunction, latchup, and overvoltage/overcurrent conditions. They also provide a mechanism to reset the processor in order to recover from an error condition. The MPQ6411GS-33 has a number of features that make it ideal for use in automotive, industrial, and consumer applications.
The MPQ6411GS-33 is a three-channel, single-wire, low-voltage supervisor. Its features include a single-wire operating voltage range of 0.60V-3.65V; an on-chip +1.8V regulated core voltage output; Programmable reset threshold delay times of 2.0ms, 4.0ms, 8.0ms and 16.0ms; an active-low RESET output; an inherently sequence-protected power on reset; pre-programmed alarm thresholds of 28% and 42% of VDD; and an over-voltage lockout (OVLO) to protect against latch-up conditions. All of the features make it suitable for a wide range of applications.
The MPQ6411GS-33 can be used in automotive applications, such as monitoring battery voltage and providing a reset in the event of a loss of power. It can also be used for embedded control and in industrial monitoring and control applications. In addition, it can be used to protect microprocessors in consumer electronics. The device can be used in a wide variety of microprocessor-based systems, such as fitness devices, smart phones, and tablets.
The working principle of the MPQ6411GS-33 is relatively simple. It consists of a monitoring circuit and a reset circuit. The monitoring circuit monitors the voltage level of the system power supply, and is capable of detecting an overvoltage or undervoltage condition. If the voltage rises above or drops below the pre-programmed thresholds, the device will initiate the reset sequence. The reset circuit consists of a reset timer, an alarm comparator, and an (active-low) reset output. When the input voltage rises above the pre-programmed alarm thresholds, the device will initiate a reset cycle. The reset timer is used to delay the reset initiation until the voltage condition has been stable for a set duration. The active-low reset output pin is used to reset the microprocessor, and to make sure it cannot remain in a loop caused by an erroneous condition.
The MPQ6411GS-33 is an excellent solution for providing the reset and protection functions required by the latest microprocessors in a wide range of applications. Its low operating voltage range and programmable reset parameters make it suitable for use in automotive, industrial, and consumer applications. Its ultra-low operating current of 17µA greatly reduce the power dissipation, while its on-chip active-low reset output simplifies the system design.