BD9489F-GE2 Integrated Circuits (ICs)

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BD9489F-GE2 is a power management integrated circuit (PMIC). It is specifically designed as an LED driver. It incorporates a comprehensive set of current regulation, protection, and monitoring features across 0.25 to 8.0V output ranges and zero to 8.5V input ranges for powering multiple strings of LEDs. Its unique design minimizes the need for supplemental external components, thus reducing costs and increasing efficiency.The BD9489F-GE2 is capable of up to four strings of LEDs. Each string of LEDs has its own set of current regulation and protection features. Each string\'s LED current is programmed via its external resistor and can be set from 0.025 to 6.00A. In addition, each LED string has its own over-voltage, short-circuit, thermal, and open-circuit protection. The BD9489F-GE2 also features a programmable switching frequency that can be adjusted from 200kHz to 2MHz.The BD9489F-GE2 also has several features to ensure safe operation. First, it provides a “soft start” feature, which is designed to reduce the inrush current during start-up to prevent load transients. Second, it provides an “output enable” feature, so the LED driver can be disabled in order to conserve power when not in use. Finally, it provides an “external sync” feature, which allows the driver to be synchronized with other LED drivers or other clock sources in order to provide a uniform lighting effect.The BD9489F-GE2 is an excellent choice for driving multiple strings of LEDs. It provides a high level of protection for both the LED strings and the driver itself. In addition, its adjustable switching frequency allows for flexibility in timing, allowing designers to integrate it into a wide variety of lighting applications. Its soft start feature, output enable feature, and external sync feature all make it an attractive choice for LED applications.

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