LM3492HCQMHX/NOPB

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The LM3492HCQMHX/NOPB is a highly efficient Dual 30mA Buck Mode Regulator which is designed to drive and control the current of a variety of light sources, including white LED and other colorful LED applications. It is a member of the Texas Instruments LED Lighting Control portfolio. This device is built to operate in the highly demanding environments of industrial lighting applications such as portable, street and task lighting, as well as those applications which require a robust operating temperature range.

The LM3492HCQMHX/NOPB is an application field specifically tailored for LED drivers, enabling current linearity with low ripple and EMI over a wide dimming range. It utilizes a highly efficient buck mode topology to obtain a 1V to 5V output range and an on-chip device protection feature to safeguard against any type of output over-current or over-voltage conditions. The LM3492HCQMHX/NOPB also features low parts count, minimized losses, and enhanced thermal performance which help extend the lifetime of the system.

The working principle of the LM3492HCQMHX/NOPB is that the device is wired up to the input power source, then the output terminals are connected to the LED load. With an on-chip power slider, the voltage on the output terminals is adjustable to obtain the desired current for the LED load. The high accuracy sensing circuitry then monitors the current flow and adjusts the output voltage accordingly. As a result, a linear LED current is maintained over the entire dimming range.

The LM3492HCQMHX/NOPB has a variety of features that optimize the performance of the LED driver while improving system lifetime and reliability. These features include an adjustable current limit, pulse skip functionality, over-voltage protection, and over-temperature protection. Additionally, the device can be configured such that the LED current can be adjusted with Pulse Width Modulation (PWM) or a digital Dimming Interface. This allows the LED driver to be used in dimmable as well as non-dimmable LED lighting applications.

The LM3492HCQMHX/NOPB is a highly efficient and reliable LED driver solution which is designed to maximize the performance of LED lighting applications. This device’s integration of a buck mode topology, adjustable current limit, and adjustable voltage output range makes for a great choice for industrial, portable, and other LED lighting applications. Additionally, its on-chip device protection and pulse skip functionality protect the system from any type of output over-current or over-voltage conditions.

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