NCP305LSQ45T1G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	4.5V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-82A, SOT-343
Supplier Device Package:	SC-82AB
Base Part Number:	NCP305

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Overview

The NCP305LSQ45T1G is a specialized integrated circuit that acts as a supervisor for power management and system control. It provides advanced features to help ensure reliable operation while reducing overall system complexity. In this article, we will discuss the application field and working principle of the NCP305LSQ45T1G.

Applications

The NCP305LSQ45T1G has a wide range of applications within the power management and system control industries. It is most commonly used for providing reliable power supply and system monitoring for industrial, telecom, medical, and automotive applications. It can also be used to monitor voltage and current, protecting against under- or over-voltage and over-current, and providing system power-on reset and push-button reset functions.In addition to power management and system control applications, the NCP305LSQ45T1G is also used in a variety of other applications, including battery-backed and system power supplies, alternative energy power conversions, distributed power systems, telecommunication systems, and embedded control systems.

Working Principle

The NCP305LSQ45T1G is a low-voltage supervisor (LVS), also referred to as a voltage detector, voltage supervisor, supervisor IC, or reset IC. It is a three-terminal device that monitors the voltage between the VCC and GND pins. If the voltage drops below the trip point (VTP), the output pin is driven to a low state and a low-voltage reset signal is generated.The reset output of the NCP305LSQ45T1G is active low, meaning that the output is "on" when the voltage is below the trip point and "off" when the voltage is above the trip point. The output is guaranteed to remain active for a minimum of 100ms after the voltage condition has been corrected. Additionally, the delay (tD) for the NCP305LSQ45T1G can be easily adjusted via an external capacitor on the DT pin.The NCP305LSQ45T1G also features an enable pin (EN) which can be used to manually control the reset state. The enable pin is active low, which means that it must be connected to a logic low to enable the output reset signal. This pin can also be used to disable the reset signal.Finally, the NCP305LSQ45T1G features an open-drain reset output (RESET) which can be connected to an external pull-up resistor if desired. The pull-up resistor ensures that the output is driven to a high logic state unless it is actively driven low by the LVS when the voltage drops below the VTP.

Conclusion

In conclusion, the NCP305LSQ45T1G is a specialized integrated circuit that acts as a supervisor for power management and system control. It provides advanced features to help ensure reliable operation while reducing overall system complexity. The NCP305LSQ45T1G is most commonly used for providing reliable power supply and system monitoring for industrial, telecom, medical, and automotive applications. Additionally, it can also be used for a variety of other applications, including battery-backed and system power supplies, alternative energy power conversions, distributed power systems, telecommunication systems, and embedded control systems.

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