FL7930CMX-G Integrated Circuits (ICs)

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The FL7930CMX-G is a programmable, high performance, constant current control LED driver. It has a built in high efficiency DC-DC boost converter, current control channel and an LED chain management circuit. This device can provide high efficiency LED lighting control for LCD backlight, LED signs, LED TVs, LED street lights and LED headlights.

The FL7930CMX-G application field is mainly used in constant current LED drivers such as LCD backlight, LED signs, LED TVs, LED street lights and LED headlights. It can also be used for LED dimmers and LED drivers for lighting design.

FL7930CMX-G can provide a wide range of current control levels, up to 8A, at a low voltage of 6.5V. The switching frequency can be programmed up to 500kHz, thereby allowing a variety of LED drive modes and allowing LED dimming in a specific frequency range. Its built-in LED chain monitoring circuit can detect all the LEDs within the drive chain successfully and, in case of an open or short circuit condition, will shut down the system.

Furthermore, the device provides the functions of average current mode, linear current setting, power save mode and wide dimming range up to 1000 LEVEL, achieving low power PWM dimming which makes the system more reliable and power efficient. As for the design, due to its compact and light weight package dimension, it can be easily integrated into many applications. Moreover, FL7930CMX-G also complies with UL60950-1, making it suitable for use in all kinds of equipment, assuring greater performance and stability.

The working principle of the FL7930CMX-G is similar to that of a traditional constant current control LED driver. The device utilizes an internal boost converter to convert a low voltage to the desired LED drive voltage and a current control circuit to limit the LED current. The PWM input for dimming control will be stored in the internal RAM and sent to the LED drive circuit directly. The LED periodic voltage-current is monitored by the LED chain monitoring circuit in the FL7930CMX-G. In case of a short circuit or open circuit, the system will be shut down to protect the LED from potential damage.

To conclude, the FL7930CMX-G is a highly efficient and cost-effective LED driver for applications such as LCD backlight, LED signs, LED TVs, LED street lights and LED headlights. With its high efficiency, low voltage and compact package size, this device is ideal for a wide range ofballast controllers and lighting design applications.

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