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PMIC - LED Drivers

TC62D722CFNG,C,EL are LED drivers designed for LED control and management. They are used in automotive headlight systems, agricultural machinery, and other related applications. As the development of LED in the lighting industry continues to accelerate, these drivers provide efficient power conversion from vehicle power sources to the LED light sources.

Applications

TC62D722CFNG,C,EL are ideal for automotive headlight systems. They enable specific turn-on/off times and dimming functions with precise linear current output. They also exhibit high performance that is stable over wide temperature ranges, and offer adjustable OCP (Over Current Protection) as well as fault detection with additional driver functions. In addition, they offer advanced protection mechanisms to effectively protect against over-voltage, over-power and short circuit.

These LED drivers are also well suited for agricultural machinery and other applications, such as industrial and commercial lighting systems, landing lights for aircraft, underground lighting systems, and many others.

Working Principle

The TC62D722CFNG,C,EL LED driver features two P-channel power MOSFETs to create a synchronous buck converter. The driver also includes a dual-channel constant-current LED driver with a linear current accuracy of +/- 5%. This significantly reduces power consumption and output ripple as compared to non-linear current control.

The driver is regulated by the buck converter’s internally integrated current-mode control loop, which provides precise control of the current output. It also works to match the desired current output with the output voltage of the driver. This adjustable buck converter utilizes N-channel MOSFETs with high thermal resistance to deliver up to 700mA and a wide input voltage. The LED driver’s output voltage is optimized through a soft “Try-Now” output adjust feature that adjusts the output current and voltage accordingly.

The LED driver also features advanced protection functions. These include a synchronous deconvolution feature which narrows the feedback loop bandwidth of the buck converter, reducing the output ripple from the power supply, as well as a skip-arm current resonance feature which reduces output current shock.

Furthermore, the TC62D722CFNG,C,EL LED drivers offer flexible fault detection. This includes a fault detection temporarily that includes an adjustable delay time and fault-count parameter. Additionally, this driver features a low operating current when the fault system is enabled, reducing power consumption.

Conclusion

In short, the TC62D722CFNG,C,EL LED drivers are ideal for automotive headlight systems, agricultural machinery and other related applications. They offer advanced protection mechanisms, precise current output, adjustable OCP, fault detection and additional driver functions. By utilizing efficient power conversion, these drivers deliver optimal performance and output ripple across a wide temperature range.

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