NCP81158DMNTXG

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The NCP81158DMNTXG is an advanced single phase current-mode Pulse Width Modulation (PWM) coreless gate driver integrated circuit from ON Semiconductor. It is designed to control a wide range of devices, from ultra-small and ultralow power to high-power DC-DC converter applications. This driver provides a wide range of features to the industry.

NCP81158DMNTXG Application Field and Working Principle

NCP81158DMNTXG is used in Power Management Integrated Circuit (PMIC) applications like gate drivers. It offers precise and fast gate drive currents, which helps in controlling a wide range of applications. This driver is also ideal for space-constrained designs of DC-DC regulators and employment in many isolated, non-isolated and cascade-driven boost converters.

The core of the NCP81158DMNTXG is a power MOSFET gate driver IC with a 100 mA output drive current capability. The IC offers gate drive current precision of up to 5% and fast transient response times. It integrates up to 4 gate drive channels to reduce parts count, enabling system cost savings.

The NCP81158DMNTXG also features under-voltage lockout (UVLO) and foldback short-circuit protection. It has a brown-out detection circuit that can detect an on-state output current droop in order to protect against faults in the system. Additionally, the Internal Thermal Shut-Down (TSD) circuit provides additional protection mechanisms to help guard against device over temperature.

The NCP81158DMNTXG also offers several features to make it simple to use. A real-time status indicator pin is provided to enable an instantaneous check of the device\'s operational status. The logarithmic slew rate control pin is available for the NCP81158DMNTXG to offer a smooth control of gate drive waveforms. The enable/disable pin allows users to have a manual control so as to manage current consumption.

The NCP81158DMNTXG offers an individual current sink and source driver in a single package. This makes it ideal for implementing a number of topologies. This IC is designed for power modules that are used for high-efficiency synchronous buck regulators, boost and flyback converters. The NCP81158DMNTXG can also be used in hybrid systems that contain both synchronous and nonsynchronous topologies.

The PWM channel operation of the NCP81158DMNTXG can be controlled in three different modes. The Pulse Width Modulation (PWM) mode allows the highest efficiency operation and enhances the dynamic response of the regulator. The constant current mode provides excellent steady state stability and improved current limit accuracy, while the on/off mode limits the output power of the regulator to a minimum.

The NCP81158DMNTXG is operable from a 2.7V to 16.5V input voltage range and the output voltage is adjustable from 10V to 32V. The true current limiting feature of the NCP81158DMNTXG helps to protect the system from faults or overload conditions, even in the event of sudden changes in the input voltage, or when a capacitor has been discharged to a low capacitor voltage. This driver also supports both external shoot-through prevention to protect the power MOSFETs from shoot-through current and also offers programmable shoot-through prevention to prevent overshoot current.

Overall, the NCP81158DMNTXG is a robust and highly integrated device that is suitable for high-performance remote gate driver, offering exceptional results in a wide range of applications. This power management IC is ideal for gate driver applications and provides a high level of performance and features to help ensure system reliability and efficiency.

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