X40431S14-AT1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	3
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	Adjustable/Selectable
Voltage - Threshold:	1.7V, 2.9V, 4.6V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	14-SOIC
Base Part Number:	X40431

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<h2>PMIC - Supervisors: X40431S14-AT1 application field and working principle</h2><p>The X40431S14-AT1 is a multi-function supervisor IC specifically designed for power supply applications in which multiple regulators or converters must be monitored and controlled. It consists of a voltage monitor (or supervisory) function and a fault control function. It is typically used for time-delay and fault control in linear and switching power supplies, as well as over-voltage protection.</p><h3>Application Field</h3><p>The X40431S14-AT1 can be used to provide voltage monitoring and control applications in a variety of industrial, automotive and consumer applications. Industrial applications include utility metering or monitoring, industrial process control, motor control, and robotics. Automotive applications include powertrain system control, power steering and engine control systems, as well as passenger entertainment systems. Consumer applications include home audio, home appliances, and other home control systems.</p><h3>Working Principle</h3><p>The operation of the X40431S14-AT1 is based on the operation of a voltage comparator. The input voltage is compared with the reference voltage, and an output signal is generated when the input voltage is greater than the reference voltage. This can be used to set over-voltage protection thresholds or to provide warning when the input voltage drops below a predetermined level.</p><p>The voltage comparator can also be used to generate a delay (pulse-width modulation) signal. This signal is used to delay the start of power devices such as MOSFETs or IGBTs, or to synchronize devices such as paralleled switching power supplies. The delay can be configured with a single external resistor, allowing the user to adjust the delay to the desired length.</p><p>In addition, the X40431S14-AT1 can be used to control the fault-shutdown circuitry on power supplies. This can be used to shut down the power supply if a fault condition is detected. It can also be used to detect over-voltage or other potentially damaging conditions, and shut down the power supply in order to protect the load.</p><h3>Conclusion</h3><p>The X40431S14-AT1 is a versatile supervisor IC, designed to provide voltage monitoring and control applications in a variety of industrial, automotive and consumer applications. It is typically used for time-delay and fault control in linear and switching power supplies, as well as over-voltage protection. Its integration of multiple functions into a single IC make it an ideal choice for a wide range of voltage monitoring applications.</p>

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