NCP304LSQ18T1G

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PMIC (Power Management Integrated Circuit) is a device that helps to manage the power of electronic systems with different voltage, current, frequency and power level. Its main purpose is to maintain the desired performance of the system by controlling the power supply. Supervisors, a class of PMIC, are particularly designed to protect the system from conditions causing system malfunction or out of specification operation. NCP304LSQ18T1G, a member of the supervisors, is a low-power voltage detector typically used in automotive and consumer applications.

NCP304LSQ18T1G Application Field

NCP304LSQ18T1G has wide applications in automotive and consumer electronics. In automotive systems, it helps to monitor the voltage level of systems that use 12V or 24V. It ensures that the system is operating within the acceptable range and can detect an overvoltage situation and trigger a reset. In consumer electronics, it is used to protect the device from out-of-specification supply voltages and to ensure that the operating voltages are within the desired range. It is also used in applications related to battery monitoring, voltage monitoring, and system power-on reset.

NCP304LSQ18T1G Working Principle

The NCP304LSQ18T1G operates based on the complementary output flip-flop, two voltage thresholds and two control thresholds. It has an open-drain output (active low) and an internal pull-up resistor that allows active-low operation. The device is designed to detect an overvoltage condition with two thresholds and then trigger a reset when the voltage exceeds the higher threshold. It also has two control thresholds used to control the output high and low thresholds. The NCP304LSQ18T1G also has a watchdog timer that is used to detect a reset condition and trigger a reset.The timer can be set to any value up to 16 seconds and activated by the RESET pin. The device also features an active-high active reset indication pin that drivers can use to detect a reset condition. The NCP304LSQ18T1G also features an open-drain power-on reset (POR) pin that can be used to detect a power-on reset condition. The POR pin is designed to be pulled high externally and then pulled low when the voltage level reaches a predetermined value. The reset condition can then be used to reset the system. Finally, the NCP304LSQ18T1G also features a capacitor discharge circuit that can be used to detect a brown-out condition. The circuit is designed to detect a low-supply voltage condition and then trigger a reset when the voltage falls below a certain level.

Conclusion

NCP304LSQ18T1G is an integrated circuit that is used to monitor and protect electronic systems from conditions that can cause system malfunction or out of specification operation. It is primarily used in automotive and consumer electronic applications. It features thresholds, watchdog timer, active reset and POR pins, and capacitor discharge circuit for detecting reset conditions and protecting the system from these conditions. The device is designed to provide reliable and efficient protection for a wide range of applications.

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