UCC37325PG4

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UCC37325PG4 is an integrated circuit designed by Texas Instruments and belongs to their Gate Driver family of products. As part of Texas Instruments’ Power Line Management (PLM) portfolio, UCC37325PG4 is an integrated solution specifically designed to minimize power losses in applications where multiple power stages are used. The product integrates high-current drive capability for low on-state resistance (RDSon) plus full hysteresis control across a wide range of environments.

UCC37325PG4 provides up to 4A of peak source and sink current drive per gate, providing a high slew-rate gate driver for high-power applications of gate controlled devices such as MOSFETs, IGBTs and Bi-mos. This gate driver offers significant improvements in efficiency and power savings, compared with discrete implementations of gate drivers.

UCC37325PG4 is an ideal solution for applications such as motor control, power supplies, DC/DC converters, industrial control, and consumer electronics. The device’s higher drive capability, superior thermal performance, and low power consumption enables increased power density and reduced system cost.

UCC37325PG4 integrates the necessary components to ensure a robust driving performance regardless of the operating conditions. The driver circuit integrates a high slew-rate driver, two rail-to-rail clamping diodes, two internal high-side drivers, and a low-side driver to ensure a wide range of environment immunity. The device also features an adjustable input rise and fall times, adjustable slew-rate and output voltage, and an optocoupler interface.

UCC37325PG4 uses a hysteresis comparator to compare the input signal with an internally generated reference voltage. When the input voltage crosses the reference voltage, the output voltage of the device is driven according to the polarity of the input signal. The hysteresis allows the output voltage to remain stable until the input signal exceeds the reference voltage by a certain hysteresis voltage, known as the hysteron. This ensures steady-state stability without the need for external control circuit.

The device has a wide range of features, such as over-temperature protection, adjustable dead-time, adjustable slew-rate, adjustable output voltage, and adjustable input rise and fall times. The adjustment of these features allows optimization of the system performance in terms of accuracy, efficiency and power savings.

UCC37325PG4 also offers built-in short circuit protection and fault condition detection. The device provides an external drain-source voltage (VSDS) interface, which can be used to protect the device from potential fault conditions by halting the output switching of the device. The device is also capable of detecting and resetting in the event of an over-voltage (OV) or a low-voltage (LV) output.

UCC37325PG4 is an excellent choice for robust gate-control applications where high power savings, fast transient response, and reliable operation are essential. With its wide range of features and adjustable parameters, the device offers a feature rich, easy to implement integrated solution that can ensure the system performance.

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