HV9967BMG-G

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The HV9967BMG-G LED driver is an LED regulator component specifically designed to control LED current of bright LED lights. It has been developed by the Power Management Solutions division of Infineon Technologies to provide a power source to ultra-bright LEDs (also referred to as Light Emitting Diode). The device is able to control the brightness of the required application, enabling the user to adjust it according to their own requirements. Additionally, it is also suitable for applications that require low power consumption.

Application Field

The HV9967BMG-G LED driver is predominantly used for LED lighting applications that are fragmented, such as LED strip lights, LED panel lights, LED street lights, LED spotlights and LED bulbs. It is also applicable in other high brightness LED areas, such as illuminated billboards, decorative lighting, and automotive lighting. This versatile driver can operate from a range of brightness levels, depending on the type of LED being utilised.

Design & Working Principle

The HV9967BMG-G is typically composed of a controlling IC, a boost converter and a dimming control loop. The chip includes two input setup resistors to adjust the power supply and operate the output voltage. It has a floating high voltage current source that supplies the boost converter, and a dedicated shunt regulator for setting up the aiming current. This ensures that it provides a precise output regulation from the converter to the LED.

Through its advanced working principle, the HV9967BMG-G eliminates the need for external capacitors or inductors, producing space savings and cost advantages. The chip is able to detect an optimum current point and it can also keep constant dimming current independent of the voltage level. It is also capable of detecting LED aging rate and automatically adjusting the LED current in order to keep the LED output constant.

The HV9967BMG-G is a self-protected chip, therefore short circuits due to overloads will automatically be disconnected. The device also comes with an active cross protection system to protect the connected LEDs by disconnecting them if the voltage across them is over 0.5V.

Summary

In conclusion, the HV9967BMG-G LED driver is an incredibly useful component for LED applications. With its compact design and versatile working principle, it is capable of providing a precise and adjustable control over the brightness of the LEDs. Moreover, its self-protection features make it suitable for applications that require low power consumption, such as LED strip lights, LED panel lights, LED street lights, LED spotlights and LED bulbs.

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