XC6121A538MR-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:	SC-74A, SOT-753
Supplier Device Package:	SOT-25

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PMIC – Supervisors Power management integrated circuits (PMICs) contain sophisticated integrated circuits that enable a system designer to interface and interact with power control and components, making the system more energy-efficient and easier to control. Supervisors, a type of PMIC, provide the system designer with tools that enable them to build, customize, and maintain their power system. XC6121A538MR-G is one such supervisor that is well suited for applications such as handheld devices. The XC6121A538MR-G is a high-precision reset supervisor IC and is designed to detect power supply anomalies and safely reset the system, ensuring that the system remains stable during power outages, overvoltage, undervoltage, overcurrent and other abnormalities. The IC has a wide operating voltage range, from 2.5 V to 6 V, the reset output is set by a low-rollover voltage of 3.7V. Differential reset accuracy is ± 0.5% at 25 °C. The reset output is a push-pull power CMOS output and can drive up to 150mA.The XC6121A538MR-G is designed to not only monitor the system\'s power levels but also the system\'s reset conditions. It supports two reset signals: the first two are an active-low system reset and an active-high resetout signal, used to indicate when the system is in reset condition. The output signal can be used as a general system watchdog or as an input to other devices.The XC6121A538MR-G incorporates an on-chip reset delay circuit, allowing system reset timing to be optimized to maximize power efficiency. The delay duration is adjustable and can be programmed via an external capacitor. The adjustable delay ensures that the reset output is not triggered prematurely when the system is just entering or exiting from a low-power idle state.The XC6121A538MR-G comes with built-in diagnostics features, providing the user with detailed information about system power-up and power-down problems. The device integrates an overvoltage detection circuit, which can detect power anomalies within 0.5V accuracy, and a low-current electric shock indicator circuit, which can detect transient current pulses.In addition to its watchdog timer and reset circuit, the XC6121A538MR-G also includes a low-power voltage level detection circuit, allowing system designers to optimize performance and power usage. This circuit offers an adjustable threshold voltage, adjustable response time, and low power consumption.The XC6121A538MR-G provides a comprehensive range of power management and capabilities that make it well suited for use in a wide variety of applications, including handheld devices. With its advanced power management features, power efficiency and diagnostics capabilities, the XC6121A538MR-G provides system designers with an effective and reliable solution for their power management needs.

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