XC6122A429ER-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:	200 ms Typical
Voltage - Threshold:	2.9V
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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PMIC - Supervisors: XC6122A429ER-G application field and working principle

PMIC (Power Management Integrated Circuit) - Supervisors are currently widely used in various fields, such as industry, automobile, home appliance and communication, which brings great convenience and convenience to people\'s daily life. In the field of PMIC - Supervisors, XC6122A429ER-G is a good choice. It is an adjustable voltage supervisor with a low operating current and high output current. By understanding what XC6122A429ER-G can do in various applications and how it works, we can better adapt it for use.The XC6122A429ER-G voltage supervisor integrates a 1.45 to 5.50V adjustable output voltage, low-power operational current and high-current output current drive capability into a package with an SOT23-5 body. It consists of a voltage reference and a P-MOSFET, which provide a means of accurately and quickly detecting a low voltage or an over voltage condition. Due to its adjustable voltage threshold, it is suitable for applications requiring variable thresholds such as automotive power-on reset (POR) and general circuit reset (GCR). It can also be used in industrial and commercial applications to monitor power supply voltage levels.In particular, XC6122A429ER-G is used as a power-on reset device for automotive applications. When the voltage detector is below the lower threshold voltage (Vlow) of 1.45V, the voltage supervisor will generate a logic-low (reset) output. When the input voltage is above the upper threshold voltage (Vhigh), the output will remain in a logic-high (no-reset) state. In addition, XC6122A429ER-G also has the advantages of a low operating current (Typical 4.7µA at 4.5V) and a high output current drive (Typical 0.9mA at 4.5V). This enables it to provide an accurate and fast detection of an over-voltage as well as a low-voltage condition.The working principle of XC6122A429ER-G is based on the voltage comparison principle. It has two voltage input pins: VIN and VDD. VIN is the input device for the power supply, and VDD supplies the power source for the XC6122A429ER-G. The internal voltage reference (Vref) is used to compare the voltage difference between VIN and VDD. Based on the comparison of these two voltages, an internal N-MOSFET is turned on or off. The drain of the N-MOSFET is connected to the output voltage pin and the source is connected to ground potential. The output voltage VT is proportional to the difference of VIN and VDD. When the input voltage (VIN) falls below or rises above the reference voltage, the output voltage is also changed accordingly. If the input voltage is lower than the reference voltage, the output voltage will remain low. However, if the input voltage is higher than the reference voltage, the output voltage will turn on and float to the supply voltage.To sum up, XC6122A429ER-G is an adjustable voltage supervisor, which is used in automotive power-on reset and general circuit reset, as well as in industrial and commercial applications to monitor power voltage levels. Its low operating current, adjustable voltage thresholds and high output current drive capabilities make it suitable for a wide range of applications. By understanding how XC6122A429ER-G works and its various application fields, we can better utilize it in our daily life.

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