XC6121F538ER-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:	400 ms Typical
Voltage - Threshold:	3.8V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-UFDFN Exposed Pad
Supplier Device Package:	6-USPC (1.8x2)

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IntroductionThe XC6121F538ER-G is a Supervisors from the PMIC (Power Management Integrated Circuit) family. It is designed to provide overvoltage, undervoltage and open circuit detection, as well as overcurrent and short circuit protection. The device is a linear supervisor IC, featuring a pre-biased voltage monitoring circuit and a hysteretic type reset circuit. Application Field The XC6121F538ER-G can be used in a broad range of applications, including:• Communications equipment, such as radio transceivers and power amplifiers.• Industrial systems, such as vending machines and home automation controllers.• Automotive systems, such as airbags and ABS (Anti-lock Breaking System).• Computer systems and peripherals. The XC6121F538ER-G can be used to protect the circuit from over-current, over-voltage and under-voltage conditions. Working Principle The XC6121F538ER-G features a pre-biased voltage monitoring circuit and a hysteretic type reset circuit. The voltage monitoring circuit is capable of detecting voltage level transitions at certain thresholds and outputting a reset signal when the transition is detected.The hysteretic type reset circuit monitors the voltage level and if it falls below the preset hysteretic threshold, a reset signal is outputted. When the voltage level rises back to the preset hysteretic threshold, the reset signal is deactivated.The reset signal is a start signal that can be set to one of two different levels, depending on the application requirements. This feature allows the device to be used in different types of circuits, such as a power system, an MCU (microcontroller unit) or other logic circuits.The XC6121F538ER-G also includes a built-in watchdog timer. The watchdog timer ensures that the reset signal is continuously monitored and if it does not receive input within the preset time-limit, it will reset the system.ConclusionThe XC6121F538ER-G from the PMIC (Power Management Integrated Circuit) family is a Supervisors capable of detecting a wide range of overvoltage, undervoltage and open circuit conditions. The device features a pre-biased voltage monitoring circuit and a hysteretic type reset circuit and also includes a built-in watchdog timer which ensures that the reset signal is continuously monitored. The XC6121F538ER-G can be used in a wide range of applications and is suitable for use in industrial, automotive and computer systems and peripherals.

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