XC6121A333MR-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:	100 ms Typical
Voltage - Threshold:	3.3V
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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Introduction to XC6121A333MR-G Application Field and Working Principle

XC6121A333MR-G is a PMIC (Power Management Integrated Circuit) supervisor. It is used in various types of consumer products such as mobile devices, media players, audio players, MP3 players and digital cameras.The XC6121A333MR-G is designed to ensure the safe and proper operation of various electronic devices. It protects the components and circuits that are part of the power management system from over-voltage or over-current situations.The XC6121A333MR-G manages all the power sources, such as battery power and other, to ensure that all components in the device are maintained at their properly operating levels. It is constructed with advanced control algorithms and circuitry to perform power management related functions such as load balancing, supplying the correct voltage and current levels, and system downtime minimization.Specifications and Features

XC6121A333MR-G is available in a 5x6 “CHIP-SCALE” package that measures just 5.6 mm x 6.6 mm. The device has a wide input voltage range of 4.5 V to 5.5 V, providing compatibility with the majority of existing systems. It supports three voltage output configurations which include 1.8 V, 3.3 V, and 5.0 V.Other features include a low input current of 30 µA, selectable over-voltage and over-current protection, power MOSFET with load switch, and wide operating temperature range form -25°C to +85°C. Furthermore, it also contains an on-chip watchdog timer and an over-temperature protection.Working Principle

To ensure correct operation of the system, the XC6121A333MR-G performs various operations such as backup power startup and power suggestion.When the supply voltage drops below a certain level, the device triggers the backup power startup (BAS) circuitry to monitor the situation and activate the system if the input voltage recovers. This prevents unnecessary circuit damage due to an over-voltage or over-current situation.The XC6121A333MR-G also features Power Suggestion (PS), which monitors the system operation and suggests the optimal supply voltage in regards to the current load. By keeping an eye on the total current draw and output voltage, the device is able to adapt its operation to the given conditions.Conclusion

The XC6121A333MR-G is a powerful supervisor IC that maintains the safe operation of power management systems in many types of consumer electronics devices. It features multiple protection circuits and advanced control algorithms to ensure smooth operation of the device. Its wide input voltage range, low power consumption, and wide operating temperature range make it suitable for a variety of applications.

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