HV9911NG-G-M901 Integrated Circuits (ICs)

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HV9911NG-G-M901, a Power Management Integrated Circuit (PMIC) – LED Drivers, is designed for a two-string power-supply configuration of non-dimmable string-level backlight control, suitable for LCD and general illumination applications. With flexible and advanced features, HV9911NG-G-M901 is undoubtedly an ideal choice for industrial equipment and consumer electronics.

HV9911NG-G-M901 working principle depends on the three individual blocks: Power Drivers, Control Logic and OLP. Power Drivers take signal from the OLP and oscillate it in a particular range, then it will generate a PWM, which can be controlled by the signal output of the OLP. The OLP generates a PWM, and the signal will be transferred to the LED strings via the Gate Drive. From the gate drive, the control logic will adjust the current of the LED strings accordingly.

The features of HV9911NG-G-M901 are both effective and efficient. The ripple current and cross conduction loss of the LED strings are greatly reduced. Its Micro Step dimming and Flicker Reduction technology ensures the smoothness, uniformity, flicker-free and shadow-free collection of high-quality light. Moreover, the HV9911NG-G-M901 has a dimming range of 0.2% to 100%. The output current per string can reach 100mA. Furthermore, HV9911NG-G-M901 is equipped with an oscilloscope function which is able to monitor and measure the current of the LED strings. HV9911NG-G-M901 also supports various modes such as PWM Dimming, DC Dimming, Micro Step Dimming and PWM-based Analog Dimming.

HV9911NG-G-M901 has numerous application fields such as automotive LCD backlighting, LCD TVs, monochrome and color LCD panels, LED bulbs, LED strips and LED modules. This LED drivers has incorporated features that provide excellent design flexibility which means that it is able to match the requirements of most LED lighting applications.

In conclusion, HV9911NG-G-M901, a PMIC – LED Drivers, working principles depend on the three individual blocks: Power Drivers, Control Logic and OLP. Furthermore, the HV9911NG-G-M901 has a dimming range of 0.2% to 100%, supports various modes such as PWM Dimming, DC Dimming, Micro Step Dimming and PWM-based Analog Dimming, and has numerous application fields such as automotive LCD backlighting, LCD TVs, monochrome and color LCD panels, LED bulbs, LED strips and LED modules.

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