XC6122E541ER-G

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The XC6122E541ER-G is a integrated circuit (IC) found in the Specialty Performance Atmel Power Management ICs (PMIC) - Supervisors series, providing power management and microcontroller supervisory functions for portable devices, computing and communication solutions. Specifically, this IC type is typically used as a reset supervisor that supports independent timing and has a programmable reset timeout period. This IC provides a voltage monitoring and reset system with a unique serial peripheral interface for communication in a wide range of operating voltages and temperatures.

Overview

The XC6122E541ER-G has an operating temperature range of -40°C to +85°C and is a tiny 8-pin package, with an input voltage range of 1.8 V to 5.5 V. It has a reduced I/O buffer configuration, including a RESET output and a SERIAL sign pin. It operates at a programmable voltage monitor reset window, a programmable timeout period, a highly accurate voltage monitor voltage and a highly accurate voltage monitor delay time. It also converts serial output to analog input, allowing advanced monitoring and control functions. The XC6122E541ER- G also includes advanced features such as a Power-On Reset (POR) condition.

Features and Benefits

The XC6122E541ER-G boasts several features and benefits that make it the ideal choice for providing control, monitoring and reset solutions for portable devices, computing and communication solutions. These include:

• Programmable reset timeout period
• Programmable voltage monitor reset window
• High accuracy voltage monitor voltage
• High accuracy voltage monitor delay time
• Serial output to analog input conversion
• Compact 8-pin package
• Wide operating voltage range (1.8 V to 5.5 V)
• Wide operating temperature range (-40°C to +85°C)
• Advanced features such as power-on reset condition

Applications

The XC6122E541ER-G’s features and benefits make it extremely well suited to a wide variety of applications. It is particularly popular in power management, Reset Supervisor and Microcontroller Supervisor applications that require high accuracy sensing, monitoring and control of a device’s voltage and/or temperature. Specific applications include:

• Mobile communications and consumer electronics
• Computing and communication solutions
• Small form factor PC and Tablet PCs
• Mobile and handheld PDA’s
• Digital cameras
• High end smart phones and related products
• Automotive systems with integrated display systems
• Industrial Automation systems
• Home automation systems
• Smart home appliances

Working Principle

The XC6122E541ER-G works on the principle of resetting the voltage when the voltage drops below a preset point. The circuitry consists of three basic elements that work together to monitor, detect and reset the voltage when it dips below the programmed voltage threshold.

The first element is the voltage supervisor. This component monitors and detects the voltage at the reset pin and when the input goes below the preset value the reset output (RST) is triggered. The second component is the timing circuit. This activates the reset output (RST) after the delay time (tDLY) has expired. Finally, the reset timeout component sets the amount of time that the reset output is active; this is known as the reset timeout period (tRST).

Once the voltage monitor falls below the set threshold, the MCU Resets Pin (RST) changes from high to low. In turn, this will reset all register content and clear any pending events, forcing the processor to restart or start up from reset. After the voltage recovers above the threshold, the reset timer will continue to run until the configured reset timeout period (tRST) expires. This means that even if the voltage remains above the minimum threshold for the entire reset timeout period, the MCU will remain in reset state.

The XC6122E541ER- G is a high accuracy voltage monitoring circuit, designed to detect and reset voltages with minimal hysteresis. It is also designed with integrated protection against false triggering, which helps guard against damage due to system transients and other electrical disturbances.

Conclusion

The XC6122E541ER-G is an integrated circuit found in the Atmel PMIC - Supervisors series. It is a reset supervisor and provides power management and microcontroller supervisory functions for computing, communication and portable device solutions. It boasts a programmable reset timeout period, programmable voltage monitor reset window, as well as a high accuracy voltage monitor voltage and accuracy voltage monitor delay time. Its small 8-pin size, wide operating voltage and temperature range, and advanced features make it the ideal choice for a variety of applications, including mobile communications and consumer electronics, computing and communication solutions, and small form factor PC and Tablet PCs.

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