MN13821PP

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Part Status:	Obsolete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:	35 µs Typical
Voltage - Threshold:	3.6V
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 3P
Base Part Number:	MN138*

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PMIC - Supervisors: MN13821PP Application Field and Working PrinciplePMIC – Power Management IC (PMIC) supervisors are a type of integrated circuit (IC) that is used to manage different kinds of power supply signals. They provide various functions and features such as monitoring power supply signals, generating reset signals, and generating supply voltage/rail signals. The MN13821PP supervisor IC from Microchip is one such IC designed to monitor the battery current from a +8V to a +17V range. The MN13821PP is an IC family that is designed for applications in battery-operated systems that require bidirectional current monitoring. It has four fixed voltage and one adjustable voltage input, and two programmable outputs. The two programs that can be configured are the battery level output and the system health output. The IC is suitable for use with a variety of sensor systems, such as HVAC (or heating, ventilation, and air conditioning systems) for monitoring the battery current, as well as for cooling fans, power supply systems, and fuel injection systems. The MN13821PP has a modified version of the POR circuit that allows for the monitoring of the battery current in both directions. It provides a VCC regulator with a wide input range, from +8V to +17V, and is capable of providing up to 2.5A current. It also provides voltage monitoring for a range of battery voltages, from 2.5v to 20V. The IC features an adjustable temperature sensor, a low voltage compensation, an alarm output and an output buffer. These features help the IC to keep system performance and battery life at optimal levels. It also provides an internal watchdog timer to guard against system failure when the power supply fails. The core of the IC is a 4-bit analog-to-digital converter, which is used to determine the level of the battery current. The battery current is monitored using two analog inputs that are compared with each other and the output voltage of the IC is set as a result. The output voltage can be monitored and programmed to keep the battery current within the desired range. The IC also features a programmable brownout reset that is used to protect the system from excessive drain on the battery current when it is below the minimum threshold. The brownout reset can be programmed for a period of 2 to 20 seconds. The IC also features an auto-discharge feature. This feature is used to turn off the IC discharged battery when its voltage drops to a predetermined level. This feature helps keep the battery current at the proper levels and helps to extend the IC\'s lifetime. The IC also features an inrush current limiting feature that helps to protect the battery from sudden surges in power. This inrush current is limited to a predetermined level, which helps to reduce the risk of damaging the battery. The IC also has a reset lockout feature, which is used to prevent unintended reset issues. When the reset lockout is enabled, any input to the reset line will be ignored. The IC also features an internal programmable impedance scaling feature, which is used for high voltage battery monitoring. It helps to provide precise voltage control and can be used for both battery voltage and system voltage monitoring. In conclusion, the Microchip MN13821PP is a superior IC designed to provide accurate current monitoring, system protection, and extended battery life in various applications. The various features offered by this IC, including the adjustable temperature sensor, the brownout reset, and the auto discharge feature, make it an ideal solution for a wide range of applications.

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