NCP380HSN10AAT1G

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NCP380HSN10AAT1G is an automotive reset, discharge, temperature and supply monitoring family of system low dropout (LDO) linear voltage regulators with an integrated voltage supervisor. It is designed to provide optimal reliability, automotive protection levels and over-temperature protection (OTP) for your system and integrated circuits. This device is well-suited for low-voltage automotive-grade applications, and is capable of operating from a wide input voltage of 2.7V to 5.5V with a quiescent current of 8.5μA. It is integrated with a Switching FET, which helps minimize component count and simplifies power management design. This device helps reduce power consumption, enhance system reliability and provide improved thermal stability.

NCP380HSN10AAT1G belongs to PMIC – Power Distribution Switches, Load Drivers product family. It has ultra-low external component count and a simple internal design for a wide range of power management applications. This device provides a low pulses noise, low over-shoot, fast turn-on/turn-off times, non-polar power supplies, protection against over-temperature, under-voltage, over-voltage and reverse-battery events. It also supports slew rate of up-to-500mA/V and fast switching times of up-to-3ns. It features an on-chip temperature sensor, eliminating the need for external sensing components. It also features an adjustable latch delay to adjust the timed output switch during on/off transition, providing reliable regulation under varying loading conditions.

The working principle of NCP380HSN10AAT1G is based on a multi-functional feature unit, which ensures a safe and accurate system output voltage alongside the integrated protection capabilities. It utilizes a bi-directional switch to transfer power from the input voltage source to the output load. With respect to the current monitoring and regulation, the output of the switch is sent through two paths – The low-side path, which is for voltage sensing and monitoring, and the high-side path, which is for current sensing and regulation. When the output load exceeds the device\'s pre-defined current threshold, the integrated current monitor senses the surge in current via the high-side path and temporarily shuts down the switching FET to protect the circuit. Notably, the steady state output regulation of the NCP380HSN10AAT1G is realized through the LOWE and POW. The LOWE output monitors the voltage of the output load, while the POW output monitors the output current of the device. The integrated temperature sensor also helps in providing protection against thermal runaway. When the sensed junction temperature exceeds 150 C, the thermal reset signal is pulled low, and the associated output switch is disabled.

NCP380HSN10AAT1G is very useful in automotive and industrial applications, such as automotive electronic control units (ECUs), power distribution systems, power supply design, load switching, and battery-operated systems. It is also used in cameras, barcode readers, environment and safety protection devices, and various batteries-operated systems. It has built-in ESD and suppression, making it suitable for automotive applications. Additionally, it is RoHS compliant and features a dielectric withstand voltage of 8kV, making it ideal for use in harsh conditions.

Overall, NCP380HSN10AAT1G is an efficient, low-cost, and reliable device for protection and voltage/current monitoring of systems. It provides an ideal solution for automotive and industrial applications by providing over-temperature, reverse-battery, over-voltage and under-voltage protection. This device helps protect the system from current overload, thermal runaway, and other extreme operating conditions. It provides enhanced system reliability, minimized component count, improved thermal stability, low pulse noise, and fast switching. Additionally, it is RoHS compliant, making it an environmentally friendly device.

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