RT9818C-29GV Integrated Circuits (ICs)

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
Reset:	Active Low
Reset Timeout:	143 ms Minimum
Voltage - Threshold:	2.9V
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-23-3

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Introduction

PMICs (Power Management Integrated Circuits) are important components of any electrical device, providing overall power management solutions. Supervisors are a subset of PMICs that comprise one or more subsystems that are used to control certain functions and parameters in the application. The RT9818C-29GV is a PMIC supervisor targeting health device applications.

RT9818C-29GV Application Field

The RT9818C-29GV is a PMIC supervisor specifically designed for health devices, such as digital thermometers, ECG and EEG recorders, O2 saturation monitors, infrared thermometers, and more. The device offers an integrated solution for health devices to provide overvoltage protection, overheat protection, undervoltage protection, and current limitation.The IC is also suitable for low-power 2.4~3.6V systems, such as activity trackers, smart watches, and Bluetooth headsets. It is also suitable for smart appliances, such as induction cookers, water heaters, and air conditioners.

RT9818C-29GV Working Principle

The RT9818C-29GV provides a range of features that are designed to improve safety and performance in a health device application. It contains an overvoltage protection (OVP) circuit that guarantees an output voltage that is within a certain safe margin.The overheat protection (OHP) circuit monitors the temperature of the device, and can shut down the system if the temperature exceeds a given threshold. The undervoltage protection (UVP) circuit prevents the device from receiving too little power, and can cut off the system if the voltage drops below a given level.The current limitation circuit monitors the circuit’s current consumption, and can shut off the system if the current exceeds a preset limit. This prevents any components from becoming damaged due to excessive current.

Conclusion

The RT9818C-29GV is a PMIC supervisor that is specifically designed for health devices and low-power 2.4~3.6V systems. It provides overvoltage protection, overheat protection, undervoltage protection, and current limitation, all of which are designed to improve safety and performance in a health device application.

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