XC6122D448MR-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:	200 ms Typical
Voltage - Threshold:	4.8V
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: XC6122D448MR-G Application Field and Working Principle

PMICs (power management ICs) are devices used to provide power management solutions to electronic applications. They are designed to control, convert, and regulate electrical energy, ensuring the efficient use of power sources in electronics applications. Among PMICs, supervisors are especially important. They protect the power supply and its components from external influences like overvoltage, undervoltage, and overcurrent.XC6122D448MR-G from Sharp Microelectronics Corporation is a supervisor module that combines voltage monitoring and protection, overcurrent monitoring and protection, and overvoltage clamping in a single package. This supervisor can be used in a wide range of applications, including power supply, motor management, lighting control, and battery chargers. Let\'s learn more about its application field and working principle.

Application Field:

This supervisor is primarily used in power supplies, and can help reduce the overall cost, board space, and time-to-market of the design. It can be used in both AC-DC and DC-DC applications. It is suitable for applications with input voltage up to 24V and output voltage up to 17V. The XC6122D448MR-G also has a wide range of features, such as programmable overvoltage protection (OVP) thresholds, adjustable fault thresholds, and adjustable timing values.The XC6122D448MR-G can be used in many different power supply circuits, including switched-mode power supplies, linear regulators, charge pumps, pulse-width modulated (PWM) DC/DC converters, and DC/AC inverters. It can also be used in battery charge applications, motor control, and I/O systems for computers.

Working Principle:

The XC6122D448MR-G has several main components that work together to provide protection for its applications. The primary component is a built-in transistor-based sensing circuit, which senses input and output voltages. It has a built-in comparator circuit, which compares the input and output voltages and triggers an OVP or OCP fault if their difference exceeds a predetermined value.The XC6122D448MR-G also has an integrated voltage clamp circuit, which limits the output voltage to a maximum level determined by an external voltage reference. The voltage reference can be adjusted by an external resistor to set different OVP thresholds. The XC6122D448MR-G also features separate OVP and OCP fault latches, which remain active until the fault condition is reset with the external reset input.The XC6122D448MR-G also features an adaptive fault response system that can be adjusted via an external resistor. This system ensures that the supervisor will respond quickly to faults without sacrificing long-term accuracy or regulator stability. It also has an adjustable inrush limit, adjustable power-on-delay, and adjustable power-on-reset delay.In conclusion, the XC6122D448MR-G supervisor module from Sharp Microelectronics Corporation is a versatile and cost-effective option for power supply applications. It can provide protection from overvoltage, undervoltage, and overcurrent, as well as offer adjustable settings for fault response, inrush limit, power-on-delay, and power-on-reset delay. It is suitable for a wide range of applications, including power supplies, motors, lighting, and battery charging.

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