HV9912NG-G-M934

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The HV9912NG-G-M934 is a versatile current-mode PFC used as an electronic ballast for driving HID lamps and can also be used in other applications such as low power LED lighting. This high performance integrated circuit provides an economical and efficient solution for driving power factor correction and power factor corrected LED applications.

The HV9912NG-G-M934 is a LED driver that utilizes a high-voltage current mode topology. This topology is especially suitable for driving high-voltage AC-DC LED drivers. With this low loss design and precise control technologies, the HV9912NG-G-M934 can provide up to 600V output voltage drive power for HID lamps. It also has short circuit protection and temperature rating of -40°C to +105°C that make it highly reliable in harsh environment.

The IC is composed of an array of four current-mode feedback loop controllers, each driving one AC LED switch. Two of the feedback loops are connected in parallel for a high voltage drive port, while the other two are connected in series for a low voltage drive port. The PFC loop operates in a voltage-mode with a voltage gain of 3Q to achieve high power factor and to reduce the harmonic distortion of current drawn from the AC line.

The HV9912NG-G-M934 also has a built-in dimming control circuit, allowing the user to dim the output voltage up to 50% in continuous or pulse-width modulated mode. Additionally, it offers protection features such as overvoltage protection, overcurrent protection, and thermal protection, as well as a soft start function to minimize power spikes when the ballast is first powered up.

This IC is an excellent choice for fluorescent light, metal halide lamp and LED lighting applications. Its excellent performance and measurement capabilities make it an ideal choice for these applications. It also offers high efficiency, low EMI and low output ripple.

Overall, the HV9912NG-G-M934 is a versatile current-mode power factor controller for driving HID lamps and low power LED lighting applications. It provides an efficient and economical solution for applications such as fluorescent light, metal halide lamp and LED lighting. Its high performance and remote dimming control circuit make it a widely used, reliable and cost effective solution.

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