X40435S14-C

Series:	--
Packaging:	Tube
Part Status:	Obsolete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:	1V, 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:	X40435

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PMIC - Supervisors - X40435S14-C Application Field and Working Principle

The X40435S14-C is a power management integrated circuit (PMIC) from NXP Semiconductor and is designed as a supervisor circuit, which assists in controlling the power rails of a circuit to ensure safe operation. It works by monitoring voltage levels and outputting a signal when the voltage is outside of the set limits. In addition, the X40435S14-C monitors temperature and can shut off the power rail when the temperature rises above a pre-set threshold.

Power Distribution in Electronic Systems

The X40435S14-C is typically used in power distribution systems, such as in laptops, cell phones, and other portable electronic devices. Due to the complexity of these systems, there are several power rails that need to be managed efficiently and safely in order to maintain system stability. The X40435S14-C monitors the power rails and sends out a signal to the microcontroller when voltage levels go beyond the preset limits. By doing so, the X40435S14-C helps to prevent damage and excessive power consumption in electronic systems.

Power Monitoring and Management

The X40435S14-C can monitor up to 8 power rails and has two adjustable voltage thresholds: one for overvoltage and one for undervoltage. It can be programmed with a high and low voltage cutoff range and a response delay, which determines how long it will take for the X40435S14-C to signal the microcontroller when an out of range voltage is detected. In addition, the X40435S14-C can be configured with a temperature detect limit for thermal protection and a supply power detect time delay, which is used to ensure that the power rail is stable before monitoring begins.

Operation and Outputs

The X40435S14-C senses the positive differential voltage between the output and reference pins of each power rail and sends a digital signal to the microcontroller when one of the voltage levels is outside of the pre-determined range. The X40435S14-C can be configured to power down a power rail, supply a reset signal, or generate an interrupt when an out of range voltage is detected. In addition, the X40435S14-C can also output a signal when the temperature rises above a pre-set threshold.

Conclusion

The X40435S14-C is a PMIC supervisor circuit from NXP Semiconductor, which monitors the voltage levels and temperature of power rails and sends out a signal when they go outside of pre-set limits. It is typically used in portable electronic devices, such as laptops and cell phones, to prevent damage and excessive power consumption. The X40435S14-C is a powerful tool for power monitoring and management and can be configured to power down power rails, supply a reset signal, generate interrupts, or send out a signal when the temperature rises.

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