XC6122A448MR-G

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The XC6122A448MR-G is a versatile and highly integrated power management IC (PMIC) designed for various applications such as power management for telecommunications, industrial, consumer, and medical equipment. As one of the many supervisors offered in the XC6122A family, the XC6122A448MR-G device provides system reset, watchdog operation, overvoltage protection (OVP), undervoltage protection (UVP), brown-in protection, and power supply sequencing. The device can be used for single-DC/single-stepped or multiple-DC/single-stepped power supply applications.

The XC6122A448MR-G includes a basic supervisory circuit with a programmable reset output. The reset circuit consists of a primary reset monitor and a secondary reset monitor. The primary reset monitor consists of two analog input paths: the voltage comparator path and the internal temperature sensor path. The voltage comparator path monitors the output voltage of the primary supply and detects any overvoltage or undervoltage conditions. It also provides a programmable reset output that is triggered when the input voltage falls below a programmable trip-point voltage. The internal temperature sensor path monitors the temperature of the device itself and generates a warning when the temperature exceeds a specified value (TWARN). The secondary reset monitor consists of a watchdog timer, which uses an external clock source to ensure proper system performance.

The XC6122A448MR-G offers various protection functions such as OVP, UVP and brown-in. The OVP circuit monitors the output voltage of the primary supply and detects any overvoltage conditions. It is then capable of generating a reset signal to power down the equipment when the overvoltage condition occurs. The UVP circuit monitors the output voltage of the secondary supply and detects any undervoltage conditions. It is then capable of generating a reset signal to power down the equipment when the undervoltage condition occurs. The brown-in protection mode prevents the power supply from turning on during a power cycle due to a sudden voltage spike. Finally, the power supply sequencing feature prevents the power supply from turning on in the wrong order, which can lead to system instability.

In addition to these features, the XC6122A448MR-G also provides several additional features. These include a programmable reset timeout delay that provides an adjustable delay between the reset events for system stability, and a power-on reset timer that offers a programmable reset timeout for the system to reset after power-on. The device also offers a system active indicator output and a power good indicator output that can be used to monitor system activity or the quality of the output voltages.

The XC6122A448MR-G has a wide operating temperature range, from -40°C to +85°C. The device is packaged in a small SO8 package and is designed to be used in a wide range of applications. The device\'s advanced features, high-efficiency and robust performance make the XC6122A448MR-G an ideal choice for system reset and power management.

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