FL7733MX Integrated Circuits (ICs)

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The FL7733MX is a member of a broad family of PMIC - LED Drivers. It is an integrated power switching regulator optimized for driving multiple strings of high-brightness LEDs (HB LEDs) with minimum external components.

At its core, the FL7733MX is a single-stage buck switcher, with integrated wurth-coil inductor and power MOSFETs. The device implements a constant current mode, which allows the current to be regulated across all LEDs in a string or some of the LEDs in a string, using a sense resistor in series with each LED string.

The FL7733MX also supports adjustable continuous current control, from as little as 10mA up to a maximum of 500mA. As a result, the same FL7733MX device can be used to drive multiple LED strings simultaneously, each with a different current level. This saves users from having to purchase multiple FL7733MX devices, each with a different current setting.

The FL7733MX also supports nominal direct dimming, which is a popular method of reducing the maximum LED current and the resultant brightness. Instead of turning off the LEDs, this feature allows them to reach a pre-configured minimum brightness.

Aside from LED driver capabilities, the FL7733MX also offers a range of protection functions. These include over-voltage, over-temperature, over-current, short-circuit, and reverse-polarity protection. All of these functions serve to minimize the chance of damage to the connected LEDs, or the FL7733MX itself.

Finally, the FL7733MX includes a simple but effective synchronous rectification, allowing it to achieve high level of efficiency. This saves battery power, and reduces the overall system cost.

Overall, the FL7733MX offers an excellent solution for driving multiple strings of high-brightness LEDs. With its wide range of features, ease of use and cost-effectiveness, the FL7733MX is an ideal choice for any application requiring multiple LED drivers.

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