NCV78663DQ0R2G

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Power Management Integrated Circuit (PMIC) is a device used to control and optimize the performance of a particular application. It is designed to provide the power control and optimization to electronic circuits by managing the voltage, current, and efficiency. PMICs are typically used in applications such as LED drivers, battery management systems, motor control systems, low noise amplifiers, microprocessors and many more. In this article, we will be discussing the application field and working principle of the NCV78663DQ0R2G PMIC which is specifically designed for driving LEDs.

NCV78663DQ0R2G is a Low Frequency Low Noise (LF-LN) LED driver IC and is specifically designed to provide high dynamic voltage regulation at low noise levels. It is a DC to DC step-down converter that uses conduction mode and external sense resistors to allow adjustable output current and accurate power management. This device is suitable for driving high brightness LEDs with high efficiency and long life. It is also capable of dimming through external photocell or one of the opto-couplers compatible with the IC.

This device also comes with a number of features, such as open LED/load detect circuit, enable function, undervoltage lockout, external soft-start, low standby power, over voltage protection and much more. The NCV78663DQ0R2G PMIC can be used in a variety of applications such as automotive lighting, light bulbs, mono and dual color lighting, industrial lighting, residential lighting and many more. It can also be used for decorative lighting for its low noise feature which reduces noise and flickering that is not desirable in these applications.

The working principle of NCV78663DQ0R2G PMIC is very simple. This device contains a switching device that is driven by an oscillator. The output voltage is determined by the conduction time of the switching device, which is determined by the oscillator frequency. The higher the frequency of the oscillator, the higher the output voltage. The load current is determined by the external sense resistors, which control the output current. The open LED/load detect circuit monitors the LED and load states, and adjusts the output current accordingly.

The NCV78663DQ0R2G PMIC also contains various protection features, such as over voltage protection, enable function, undervoltage lockout and external soft-start. These features keep the device safe from external malfunctions and voltage surges. The low standby power mode helps saves power when the LED is not in use.

In conclusion, the NCV78663DQ0R2G PMIC is a low frequency, low noise LED driver IC specifically designed for driving LEDs. It is suitable for a wide range of applications such as automotive lighting, light bulbs, mono and dual color lighting, industrial lighting and decorative lighting. Its simple working principle and protection features make it highly reliable and safe to use.

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