XC6121F628MR-G

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The XC6121F628MR-G is a supervisor device that combines a supervisory function with an array of system monitoring and protection functions. This device is designed to monitor power supplies and system reset functions. It also provides an electronic fuse feature that can detect faults in system systems and give an alarm.

The XC6121F628MR-G delivers high performance in a compact 4-Pin SOT-23 package. This supervisors are typically used to monitor microprocessors and power supplies in embedded systems, such as mobile phones, general digital equipment, three-dimensional video games and digital cameras.

XC6121F628MR-G application fields include factory automation, computer, consumer devices and industrial systems. In these systems, the XC6121F628MR-G is used to protect from irregularities caused by power disturbances, as well as monitor circuit faults.

The XC 6121F628MR- G’s working principle is one of three reset signals, RFU (Reset Frequency Uplift), MR (Monitor Reset) and WDT (Watchdog Timer). The RFU monitors the power supply voltage, and the WDT monitors the internal operation. When a fault occurs, the WDT sends an alarm signal, allowing the system to take countermeasures. There are two kinds of reset signal outputs, a pulse auto-retry (nullifying) output and a-retention-resistant output. The pulse auto-retry output is used for a reset at a fixed interval, and the retention-resistant output is used prevent an unwanted reset signal being sent when returning from the power save mode.

The XC6121F628MR- G also provides over-voltage protection. On start up, the reference voltage monitor will check the power supply voltage and take necessary actions to protect the circuitry. This device can also provide brown-out protection (BOP) by programming the reset threshold voltage. In addition, the XC6121F628MR-G can also protect against possible damage caused by ESD (electro-static discharge) events. The ESD protection voltage is typically rated at 2KV.

In summary, the XC6121F628MR- G provides a comprehensive solution for monitoring and power supply protection in today’s advanced systems. It is a single-chip supervisor that provides a comprehensive system protection solution. In addition, its features such as ESD protection, the BOP and over-voltage protection make the XC6121F628MR- G an ideal choice for ensuring reliability in embedded systems.

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