L6747CTR Integrated Circuits (ICs)

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In the world of power management integrated circuits (PMICs), gate drivers are often used to provide a simple, yet efficient way to drive high power loads. The L6747CTR is a PMIC gate driver that can deliver up to 10A of peak current, making it an ideal choice for high power applications. The L6747CTR is designed to provide high power operation and to operate in environments that require space efficiency and low voltage operation. In this article, we will explore the L6747CTR application field and working principle.

L6747CTR Application Field

The L6747CTR gate driver is a PMIC that is designed to drive high power loads in automotive, industrial and consumer applications. The L6747CTR is specifically designed for power supply secondary switch-mode converters, motor control and lighting applications. The L6747CTR is capable of driving a wide variety of load types including MOSFETs, IGBTs, SCRs, TRIACs and SiC MOSFETs. The L6747CTR is also capable of driving flexible, isolated high-side and low-side loads.

The L6747CTR gate driver has an operating range of 0V to 28V and a wide supply voltage range of 3.3V to 30V, making it suitable for a variety of high power applications. The L6747CTR is capable of operating in ambient temperatures from -40°C to +125°C to ensure reliable and efficient power control. The L6747CTR is available in a 6-pin micro-DFN package, adding to its space efficiency and low voltage operation.

L6747CTR Working Principle

The L6747CTR gate driver is a bi-directional PMIC, meaning it can drive both high and low side devices. The L6747CTR accepts and passes an input signal and converts it into a clean, regulated output voltage that is capable of driving high power loads. The output voltage is regulated to reduce EMI/RFI emissions and can be set to 3.3V, 4.5V, 5.5V, 7.5V, or 12V.

The L6747CTR also provides active current limiting to protect the load from any externally-induced overloading. The current limit can be adjusted to a maximum of 10A via an external resistor. The L6747CTR also provides fault reporting and monitoring to ensure optimal safety and performance. This can be done via fault flags that are provided on the device.

The L6747CTR also provides a wide range of other features to ensure reliable and efficient operation, such as a built-in soft start, variable dead time, current shut-off, power management, and thermal protection. The L6747CTR is designed to work in both conventional switch-mode power supplies and non-isolated DC/DC converters. The L6747CTR also features a low power-on reset threshold as well as a 9-bit programmable clock that enables the L6747CTR to be synchronized with external devices for efficient power delivery.

Conclusion

The L6747CTR is a PMIC gate driver that can deliver up to 10A of peak current, making it suitable for high power applications ranging from automotive, industrial and consumer products. The L6747CTR provides a wide range of features, including active current limiting, fault reporting and monitoring, soft start, variable dead time, current shut-off and thermal protection. The L6747CTR is also capable of operating in environments that require space efficiency and low voltage operation.

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