MN13821SEP

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active High
Reset Timeout:	160 µs Typical
Voltage - Threshold:	2.2V
Operating Temperature:	-20°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	MINI-3DC
Base Part Number:	MN138*

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MN13821SEP Application Field and Working Principle

The MN13821SEP is a PMIC - Supervisors, which is designed to monitor the voltage regulators, detect over-voltage and under-voltage conditions, provide power good signals, and reset the sequences of converters. It is an integrated chip with a variety of built-in features that make it ideal for a wide range of applications.

Applications

The MN13821SEP is well suited for a variety of industries and applications. To name a few, it is widely used in projectors, battery-powered equipment, white goods, industrial systems, and various consumer electronics. It has become the chip of choice in these industries as it offers superior protection, accuracy and reliability compared to other chips.In addition, due to its wide operating temperature range (up to 125°C), its excellent stability, and its protection against reverse polarity and loud ESD, the MN13821SEP is also suitable for use in automotive applications.

Basic Principle and Features

The MN13821SEP is designed with a wide input voltage range (from 5V to 40V), and two built-in regulators that can output both a fixed and adjustable voltage. The two power-good (PG) outputs can be used to enable/disable the primary converter, or to monitor the primary and secondary converters.The chip also features a power fail detector to detect falling/rising input voltages, over/under voltage detectors for both regulators, and reset circuit for the primary and secondary converters. The reset circuit utilizes the built-in watchdog timer, which can be configured with different time settings according to the requirements of the application.The MN13821SEP not only increases system reliability, but also conserves power with its low power consumption (less than 2µA) and low power-on reset voltage (2V). In addition, it is designed to protect the system by providing both under-voltage lock-out (UVLO) and brown-out reset (BOR) functions.

Conclusion

The MN13821SEP is an ideal PMIC - Supervisors for a wide range of applications, thanks to its excellent stability, accuracy, and protection features, wide operating temperature range, adjustable and fixed voltage output, and low power consumption. It can easily be integrated into a variety of system designs and is one of the most reliable PMICs currently available on the market.

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