HV9912NG-G

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PMIC - LED Drivers are mainly used to specifically govern the control of LED lighting applications. The PMIC - LED Driver family comprises of a variety of general-purpose and application-specific solutions such as HV9912NG-G. HV9912NG-G is a controller IC for current-controlled, high power LED and is typically used for street lighting and other general indoor and outdoor lighting applications because of its unique and robust features.

The primary benefit of the HV9912NG-G IC is its ability to regulate the current over a wide range of input and load conditions, preserving the source of power from overloading. It can easily be integrated into 110/220V mains operation and is also suitable for traditional rectified power sources. The IC can accommodate up to 10 strings of LEDs connected in parallel with constant current and/or constant voltage operation according to the application requirements. It supports both connected in series and connected in parallel of LED strings, and can easily be programmed with external resistors.

The HV9912NG-G works on a low-side current sensing concept. The current sensing block detects the current flowing through the LED string and produces an output voltage proportional to the current. This output voltage is then compared to the voltage present at the reference pin to control the conduction of the internal switches for regulation.

The HV9912NG-G is capable of regulating light output over a wide range of input voltage, with acceptable current ripple in both constant current and constant voltage modes. With automatic start-up and selective dimming features along with accurate current regulation and a compact package, the IC provides a complete LED driver solution.

The HV9912NG-G features various programmable parameters for chaining multiple LED strings for individual or collective dimming controls. It provides an adjustable over temperature protection (OTP) to the LED string which can be programmed during production. The thermally enhanced SOIC package can minimize junction-to-ambient thermal resistance, allowing the delivery of higher levels of power output.

The HV9912NG-G is packed with a long list of features, enabling it to drive a wide range of applications including street lighting, general indoor and outdoor lighting, and many other applications requiring current controlled, high-power LED systems. Its robust protection and performance capabilities along with its low-side current sensing concept make it a trusted choice of engineers and developers.

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