LM5107MAX/NOPB

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The LM5107MAX/NOPB is a high voltage, high performance gate driver from Texas Instruments. It has a range of applications from high-voltage field-effect transistors (FETs) to insulated gate bipolar transistors (IGBTs). Specifically, the LM5107MAX/NOPB is designed to switch modern FETs and IGBTs at high switching frequencies with values up to 2 MHz, and is suitable for driving the power switches in motor control, renewable energy, industrial, automotive, and solar applications.

Operationally, the LM5107MAX/NOPB operates with a single 5 V supply, and includes an integrated bootstrap diode to simplify the driver connection requirements and reduce component count, complexity, and cost. Additionally, the LM5107MAX/NOPB integrates a dead-time-controlled Schottky diode for efficient driver control, thereby enabling fast IGBT/MOSFET/SiC switching with low power losses. It also features ‘smart’ polarity protection and overvoltage protection, which reduces the need for external protection circuitry.

At the heart of the LM5107MAX/NOPB is a high-voltage, dual-channel monolithic MOSFET gate driver with overvoltage protection (OVP). This allows it to switch and protect IGBTs and MOSFETs with high gate-charge requirements up to 1,700 V. The gate driver features two independent power MOSFETs—one half is connected to the supply, and the other half is connected to the gate of the power device for driving the gate. The driver source and sink current ratings of the half-bridge can be independently configured by an external resistor network.

The LM5107MAX/NOPB gate driver is a robust and reliable gate driver that provides low-side and high-side drive for a variety of high-voltage switching applications. It includes a built-in synchronous rectifier, overvoltage protection, a frequency limit cycle-by-cycle current limit, and electrostatic discharge (ESD) protection.

The driver also features a soft-start capability, which is useful in applications where high inrush current must be managed. In addition, it features an adjustable dead time block, which limits the high-side and/or low-side drive duration, thus providing control over the switch-off speed. This ensures the switching device remains in safe operating area even in cases of large voltage faults.

In summary, the LM5107MAX/NOPB is a high-performance, high-voltage gate driver that can be used to switch FETs and IGBTs with maximum efficiency and minimum component count. It provides fast switching speeds and a reliable, robust, low-power driving solution for today’s high-current and high-voltage applications. With its integrated protection features and simple interface, this gate driver is an ideal choice for many motor control, renewable energy, industrial, automotive, and solar applications.

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