APX803S-31SA-7 Integrated Circuits (ICs)

Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	3.08V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23
Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector

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PMIC - Supervisors: APX803S-31SA-7 Application Field and Working Principle

Purposes of PMIC - SupervisorsThe purpose of a PMIC (Power Management IC) Supervisor is to supervise, control and monitor the operating environment of a given system. This type of chip is important to systems where the power load and voltage requirements vary greatly. PMIC Supervisors provide accurate and timely feedback on voltage and current levels, as well as detecting power anomalies such as overvoltage and excessive current drain.Description of APX803S-31SA-7APX803S-31SA-7 is a PMIC Supervisor from Microchip Technology. It is a single chip, low-power product specifically designed for embedded systems powered by single, Li-Ion cell batteries. The chip can accurately monitor the input voltage and current, providing feedback to the system on battery voltage and current levels, temperature, and charge status.Application Field of APX803S-31SA-7The APX803S-31SA-7 is designed for use in handheld and wearable devices powered by Li-Ion batteries. It can be used in a variety of applications, from mobile phones and wearable devices to a range of embedded systems.Working Principle of APX803S-31SA-7The APX803S-31SA-7 is a low-power device that can accurately measure the input voltage and current, as well as temperature and charge status. The chip has a wide range of features including:• Input voltage and current sensing• Overvoltage protection• Excessive current drain detection• Temperature and charge monitoring• Low-power operationThe principle of operation of the APX803S-31SA-7 is relatively simple. The chip continuously monitors the input voltage and current levels, responding quickly to changes and reporting back to the system. When an anomaly is detected, such as overvoltage or excessive current draw, the chip will alert the system so that corrective action can be taken. The chip is also able to detect changes in temperature and charge levels, allowing the system to respond accordingly.ConclusionThe APX803S-31SA-7 is a high-performance PMIC Supervisor from Microchip Technology designed for use in handheld and wearable devices powered by Li-Ion batteries. The chip offers accurate monitoring of the input voltage and current, as well as temperature and charge status. It can detect power anomalies such as overvoltage and excessive current draw, and alert the system quickly so that corrective action can be taken. The wide range of features offered by the APX803S-31SA-7 makes it an ideal choice for designing embedded systems powered by Li-Ion cells.

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