LM5102MMX/NOPB

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PMIC, or Power Management Integrated Circuits, are the components required for efficient electrical regulation of a system, usually a mobile device such as a laptop, tablet or smartphone. The LM5102MMX/NOPB is a high efficiency, synchronous dual-channel gate driver IC designed to drive large N-channel MOSFETs in a variety of power conversion applications that range from low-frequency to high-frequency switching. It is designed to support applications ranging from direct AC-DC bridge rectification, to high power-factor Correction LED lighting, to high voltage isolated DC-DC converters, to low voltage isolated DC-DC converters.

The LM5102MMX/NOPB is a logic-compatible and efficient dual MOSFET gate driver for driving MOSFET or IGBT power transistors. It includes a proprietary Smart Gate driver technology to provide high-speed, low-loss gate switches which enable it to be utilized in a variety of high-frequency switching applications. The number of switches supported by the driver is configurable, up to four.

The LM5102MMX/NOPB also provides intelligent protection features including undervoltage lockout protection, short circuit protection, and thermal shutdown protection. These protection features are disabled with the P-Enable pin, which allows the device to be re-used in a new application. The device is designed to be driven by a 3.3 V logic signal and is fully characterized up to 3.45V Vcc operation.

The working principle of the LM5102MMX/NOPB is to convert a logic-level input signal into a high-current switch. The output current is driven by a CMOS logic-compatible input and gated by an enable pin, providing a simple and efficient way to drive MOSFETs and IGBTs. The input signal is divided into two independently controlled outputs, allowing for simultaneous switching of the two high-side and low-side MOSFETs. The LM5102MMX/NOPB also includes a slew rate control to adjust the output current rise and fall rates, allowing for improved performance in high-frequency switch power converter applications.

The LM5102MMX/NOPB is also able to protect against short-circuit, overvoltage, and over-temperature events. Protection for in-rush current is provided by an adjustable voltage supervisor trip-point that is sectioned off into multiple trip points for lower levels of overvoltage protection. A low-level OFF current is also programmable through Digital Control pins, which allows the user to set the desired off current level.

In addition, the LM5102MMX/NOPB is designed to be compatible with most capacitively-coupled PWM controls found in AC-DC bridge rectifier, high voltage isolated DC-DC converter, and low voltage isolated DC-DC converter applications. It also has a negligible shoot-through current, making it an ideal driver for high frequency switching converters.

Overall, the LM5102MMX/NOPB provides a compact, high-efficiency, high-performance solution for driving large N-channel MOSFETs and IGBTs in high-frequency switch power converter applications. The device provides intelligent protection features, a wide input voltage range, a wide range of gate current ratings, and a slew rate control option to help users achieve improved power conversion efficiency. Its high performance and features make it an optimal gate driver solution for a variety of power conversion applications.

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