HV9961NG-G-M901 Integrated Circuits (ICs)

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The HV9961NG-G-M901 LED driver is categorized as a Power Management IC (PMIC) - LED Driver and, as such, is designed to provide a representative current to Light-Emitting Diodes (LEDs). As a PMIC, it enables applications for driving LEDs with complete protection and intelligent multi-mode dimming functions.

The HV9961NG-G-M901 represents a step-up constant current LED driver which supports 1 to 20 LEDs with 350mA maximum continuous current and 500mA maximum peak current. It has built-in adaptive function which enables it to drive the LEDs in either constant current (CC) or pulse width modulation (PWM) dimming modes. It also provides full and accurate protection functions of LEDs, including open-LED protection, over-current protection, and over-temperature protection. The maximum operating temperature is 85°C, and it also has a temperature compensation conversion, enabling accurate and consistent LED current for a wide range of applications.

The HV9961NG-G-M901 can be used in a range of applications, from indoor and outdoor consumer lighting, public places, medical appliances, and displays, to automotive lighting, low voltage lighting and microwave oven lighting. It can be powered from an ACM or an DC voltage from 9V to 52V, and can also dim from 0.1% up to 100%. It has a wide dimming range and maintains constant current for every LED.

The working principle of the HV9961NG-G-M901 is easy to understand. It is based on the concept of a buck-boost converter and has both a step-up operation and a buck-boost operation. In step-up operation mode, the device acts to increase the output voltage while maintaining a constant current that can drive 1 to 20 LEDs. In buck-boost operation mode, the device acts as an inverter to reduce the output voltage and maintains a constant current that can drive 1 to 20 LEDs. The switching frequency of the converter is adjustable between 1 kHz and 1MHz.

The HV9961NG-G-M901 is a high-quality, efficient, and cost-effective LED driver designed to apply in a range or applications and meet a variety of needs. It provides for a wide range of input voltages, a wide dimming range, and maintains constant current for every LED. It has both step-up and buck/boost operation modes and provides various protection functions for LEDs. As such, it is an ideal option for many applications where a reliable, efficient, and safe LED driver is needed.

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