NCL30080BSNT1G

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The NCL30080BSNT1G is a part of the PMIC - LED Drivers, which is designed as a highly integrated controller for DC/DC power conversion. It is designed to drive up to 8 strings of LEDs and is highly efficient, offering up to 96% efficiency under light output level. NCL30080BSNT1G features a wide input voltage range of 4.5V to 80V, Output current up to 5A, and an overall operating quiescent current of only 1.2µA for efficient power conversion of LED lighting applications. The NCL30080BSNT1G is built with several safety features such as cycle-by-cycle current limiting, a transient protection circuit, and as well as a fault detection circuit.

Application Field of NCL30080BSNT1G

The NCL30080BSNT1G is suitable for LED Drivers applications including LED Flood Lights, LED Street Lights, LED Spot Lights, LED Down Lights, and LED Light Bulbs. In addition, NCL30080BSNT1G is fits for applications such as driving light bars, driving LED indicator lights, building and industrial lighting, automotive lighting, decorative lighting, and outdoor lighting for both residential and commercial applications.

Working Principle of NCL30080BSNT1G

NCL30080BSNT1G is based on a constant on-time (COT) control technique, which works by turning on the power switches at a fixed and similar on-time in each switching cycle, thus providing excellent line regulation, load regulation, and low input/output ripple. NCL30080BSNT1G is designed to drive 8 strings of LEDs, and the output voltage is adjustable by the external resistor. The device is designed with safety features and constant-current outputs, which allows the device to remain in steady state and maintain constant LED current in the event of open diode, short diode, or large peak-to-valley LED current variation. The device is capable of shutting down the whole LED string during open, short LED circuit, or higher than 10% current variation.

The integrated fault detection circuit on NCL30080BSNT1G can provide precise system "On/OFF" control through the input EN pin. In case of system fault, the fault status will be updated to the EN pin. NCL30080BSNT1G also features a Clock Frequency Adjustment circuit along with its unique Dead-Time Adjustment Control circuit. This allows the user to adjust the switching frequency and set the dead-time for each cycle of the current phase. This feature achieves efficiency optimization based on LED operating parameters.

In summary, the NCL30080BSNT1G is a highly efficient and highly integrated LED driver controller designed for LED power conversion applications. It is designed with high robustness and provides protection against open/short LED circuits, as well as current overloading/overheating protection. Additionally, the device offers adjustable output current, adjustable switching frequency and dead-time, and adjustable output voltage.

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