NCP81381MNTXG

Logic Voltage - VIL, VIH:	--
Supplier Device Package:	36-QFN (6x4)
Package / Case:	36-TFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	--
High Side Voltage - Max (Bootstrap):	35V
Input Type:	Non-Inverting
Current - Peak Output (Source, Sink):	--
Series:	--
Voltage - Supply:	4.5 V ~ 5.5 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	1
Channel Type:	Synchronous
Driven Configuration:	High-Side or Low-Side
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The NCP81381MNTXG is a popular power management integrated circuit, which belongs to the family of Power Management Integrated Circuits (PMICs), more specifically, Gate Drivers. This Gate Driver offers integrated solutions for supplying power to a large range of automotive, medical and industrial applications. It can provide a variety of solutions, from low power boosts, dc to dc regulators, charge pumps and more. It also includes an Automotive Grade Package with built-in temperature protection, which makes it well suited for high-voltage applications, such as automotive power systems.
The NCP81381MNTXG is a monolithic step-down voltage regulator with a current rating of 40A. It integrates four externally adjusting power transistors, four gates, four efficient current sensing circuits, plus a buck regulator for the convenience of multi-channel configuration. The output is adjustable over a wide range from 0.9V to 6V in three different modes. The NCP81381MNTXG is an ideal solution for automotive, industrial, and medical applications.

NCP81381MNTXG Application Field and Working Principle

The NCP81381MNTXG is a highly efficient step-down voltage regulator which is well-suited for automotive, industrial and medical applications. This gate driver provides two outputs, the regulation output and the PWM output. The regulation output is adjusted over a wide range (0.9 V to 6 V) and it is used to power multiple channels. The PWM output is used to sense the current flow and adjust the output voltage accordingly.The NCP81381MNTXG is designed to operate with a wide input voltage range (6 V to 40 V). It can produce a regulation output voltage of 0.9 V to 6 V, which is adjustable by changing a single external resistor. It also provides an adjustable voltage threshold and a power-on reset circuit. It also includes an integrated fault detection and protection circuitry, which protects the device against over-temperature and overload conditions.The NCP81381MNTXG provides the user with high precision voltage regulation and high switching frequency (up to 2.5 MHz). It also offers low resistance current sensing circuit for accurate current sensing. The integrated transistors are able to drive up to 40 amps of current to the load, making it suitable for high-power applications.The NCP81381MNTXG also includes an Automotive Grade Package with temperature protection. This helps to protect the device from extreme temperatures, which can cause damage to components or reduce performance. It also has an internal pull-down which prevents any false triggering of the protection circuitry.In conclusion, the NCP81381MNTXG is an ideal solution for motor drives, power supplies, and multiple applications in the automotive, medical, and industrial markets. Its integrated fault protection circuitry, wide input voltage range, and its high efficiency make it a great choice for customers who need reliable high-performance power management solutions.

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