XC6123C343MR-G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Watchdog Circuit
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	100 ms Typical
Voltage - Threshold:	4.3V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-25

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PMIC - Supervisors: XC6123C343MR-G Application Fields and Working Principles

The XC6123C343MR-G embedded circuit functions as a system voltage monitoring, over-voltage protection, reset and power switching device suite designed for consumer electronics and communications products. The device permits a range of applications that require single-cell, low-voltage, lithium ion (Li ion) power solutions. As an advanced protection supervisory circuit for Li ion battery and system voltage, the XC6123C343MR-G utilizes a low supply current and a wide operating voltage range for general-purpose solutions.

Application Fields

The XC6123C343MR-G embedded circuit is used in a variety of consumer electronics, communications products, and other common applications where a single-cell low-voltage lithium ion battery is needed. This includes smartphone, cellular phones, digital cameras, gaming devices, portable media players, digital audio players, and exercise and health monitoring devices. The XC6123C343MR-G is suitable for virtually any power system with a single-cell Li ion battery.

Working Principles

The XC6123C343MR-G is a multifunctional device that features a micro-controller connected to three main systems. The first system is the Battery Voltage Monitoring System, which monitors the voltage of a Li ion battery and provides several specific functions including over-voltage protection, charging protection, and charge circuit control functions. The second system is the System Voltage Monitoring System, which monitors and controls the input voltages (Vin) of a Li ion battery, allowing for adjustments in the supply voltage range and a warning of under-voltage conditions. The third system is the Power Management System, allowing for control and management of the power supply, such as switching power sources, changing power supplies, and executing commands from the Battery Voltage Monitoring System. The XC6123C343MR-G is an advanced device, incorporating numerous levels of protection and features. Battery Voltage Monitoring System features a protection circuit, which includes over voltage protection, under voltage protection (or deep-sleep protection), and charging protection. The System Voltage Monitoring System features precision voltage sensing (requiring an accurate external voltage reference) and is able to control power supply voltages. The Power Management System features a diode-OR circuit, which is connected to the charging protection circuit, allowing for current flow in both directions. The XC6123C343MR-G device also features the TrueLogic Electronic Programmable Switch Technology. This technology enables the device to be programmed without external commands from the micro-controller, allowing for custom setting of voltage thresholds, delays, and fault conditions. Additionally, the TrueLogic technology allows for the detection of over-voltage faults, premature termination, and over current protection. The XC6123C343MR-G incorporates additional features such as a delay control function, output control function, and reset detection function that monitor and control the power supply, enabling solutions to comply with the latest safety and environmental standards.

Conclusion

The XC6123C343MR-G embedded circuit is an advanced voltage monitoring, over-voltage protection, reset and power switching device suite. It is suitable for consumer electronics, communications products, and other applications requiring a single-cell low-voltage Li-ion battery. The XC6123C343MR-G provides a full suite of protection including over voltage protection, under voltage protection, charging protection, and power management functions. With the inclusion of TrueLogic Technology, the XC6123C343MR-G also offers an electronic programmable switch ability to customize voltage thresholds, delays, and fault conditions as needed. Combined, this suite of features makes the XC6123C343MR-G an excellent choice for Li-ion battery and system voltage protection requirements.

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