MIC2871YMK-TR

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The MIC2871YMK-TR is a Power Management Integrated Circuit (PMIC) used by engineers and designers of LED Drivers. It offers highly efficient power converters with low quiescent current, feedback control, and maximum 4A output capability, fitting a wide range of LED string lengths and LED supply demands. This IC is suitable for LED ceiling lighting, LED street lighting and LED general lighting, promising improved efficiency and flexibility over a range of applications.

The working principle of the MIC2871YMK-TR is relatively simple and efficient. Internally, the IC contains a high-efficiency DC/DC switching regulator and a constant current source. This integrated circuit features adjustable output voltage from 5.5V to 60V, adjustable output current from 100mA to 4A, and output power up to 240W. The built-in over-voltage, over-temperature, and short-circuit protectors effectively guard sensitive components from damage, resulting in higher reliability for your system.

The output voltage and current can be set through a set of external resistors. The DC/DC switching regulator and the constant current source are located in the same package and can be easily connected with one external inductor. The output cycle-by-cycle current limit and peak current detection minimize the effects of transient load changes. Therefore, when the output is applied with a step load, the user can set the current peak warning threshold, depending on the system load.

Moreover, the MIC2871YMK-TR PMIC offers a high degree of flexibility. It has low noise operation and efficiency, as it can adjust the switching frequency from 300kHz to 1000kHz. There is also integrated output over-voltage protection (OVP), as well as an adjustable soft-start time for programmable startup. In addition, the user can adjust the output voltage for digital control and analog control.

The MIC2871YMK-TR package comes with internal thermal shutdown. It switches off automatically when its junction temperature reaches a temperature preset level. It also features low output current ripple, which reduces LED flicker and allows higher LED light efficiency.

In conclusion, the MIC2871YMK-TR Power Management Integrated Circuit (PMIC) is an ideal choice for LED Driver applications. Its combination of high efficiency and low quiescent current make it easy to use and suitable for lighting projects at homes, offices, and schools. With its adjustable output voltage, adjustable output current, and wide range of protections, this IC provides an ideal level of reliability for delicate electrical components.

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