NCP304LSQ46T1G

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NCP304LSQ46T1G is a high-performance supervisory circuit, a miniature surface mount package device of the PMIC - Supervisors family. It is an advanced voltage monitor and reset timer circuit, providing protection for the associated circuitry in systems with complex power-down sequencing requirements.

Specifically designed with low input capacitance, the NCP304LSQ46T1G offers fast response time, ultimate protection and reliable system stability. It features multiple watchdog timer options, reset status flag indicator, resettable open drain output, reset timeout feature and precision power supply monitoring capability.

The NCP304LSQ46T1G has applications in automotive, communications, consumer, industrial, medical and computing systems. Its low input capacitance makes it more suitable for use in space-sensitive applications such as automotive ECUs and telecommunications equipments. It can be used industrially in data protection, process control and automation or to provide reliable in-rush current protection.

The NCP304LSQ46T1G is a small size and high-precision supervisor circuit that has two threshold detect functions. Its two comparators are capable of measuring a load voltage against two threshold voltage levels. The device draws very low supply current, typically only 40µA, making it suitable for applications with limited power supply capability. Its wide input voltage range and low operating current make it suitable for both industrial and automotive applications and it is capable of maintaining stable system performance even in harsh ambient environments.

In terms of working principle, the NCP304LSQ46T1G is designed to reset the system when the voltage either drops below or goes above a certain threshold. This is done with the help of the two threshold monitoring comparators. When the voltage drops below the specified lower threshold, a reset signal is triggered, which will cause system reset. When the voltage rises above the specified higher threshold, the device is able to detect this and again send out a reset signal.

After receiving the reset signal, the device will start the watch-dog timer. The duration of this timer is set by an external capacitor, and when it expires a reset signal will be sent out again. If a power fault is present, the timer will continuously cycle since the power faults can not be corrected. This is how the NCP304LSQ46T1G is able to maintain stable system performance in the presence of power faults.

The NCP304LSQ46T1G is widely used in automotive, communications, industrial, medical and computing systems. Its low input capacitance and wide voltage range make it suitable for both industrial and automotive applications. It is also capable of providing reliable in-rush current protection and data protection for the associated circuitry. In addition, the watchdog timer and reset timeout feature make it an ideal choice for systems with complex power-down sequences.

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