LP8556TMX-E06/NOPB Integrated Circuits (ICs)

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LED drivers are used to power and control LEDs. They regulate current and voltage levels better than resistors, reduce heat output and extend LED life. LP8556TMX-E06/NOPB is a versatile LED driver integrated circuit that offers a cost-effective solution to control and manage the behaviour of LEDs. It is designed to drive up to 9 high-side current switches that can be used to directly drive LEDs with no external components.

Application Field

LP8556TMX-E06/NOPB can be used in LED lighting applications such as LED street lights, LED interior lighting, LED spot lights, LED fluorescent tubes, LED displays and LED back lighting. This LED driver is especially suitable for narrow spaces as it offers a very small size compared to other LED drivers and requires fewer external components. It also offers a wide range of features and functions, including adjustable switching frequency, active dimming and dim-to-off capabilities with dimming ratio of up to 1000:1.

Working Principle

LP8556TMX-E06/NOPB is a high-voltage LED driver which operates with a wide range of voltages, from 9V to 36V. It is based on a monolithic chip that uses an internal 850V power stage to power, control and dim the LEDs. It also has an embedded switching frequency of up to 1MHz and PWM dimming capability of up to 10kHz.

The chip is connected to a number of external components, including a voltage regulator (for powering the chip) and a resistor divider, a current sense resistor and a DC-to-DC converter (for controlling the dimming). The current sense resistor helps monitor the current flow through the LEDs and allows the chip to detect any anomalies in current and voltage levels which might cause the LEDs to malfunction. When the chip detects an anomaly, it can then control the LEDs for a better performance.

LP8556TMX-E06/NOPB is an efficient and versatile device with features that make it suitable for a variety of applications. It offers a wide range of input voltages, wide dimming range and a high switching frequency, making it the perfect choice for LED lighting projects.

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