UBA2021P/N2,112

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The UBA2021P/N2,112 is a Buck Regulated Linear LED Driver from NXP Semiconductors that is specifically designed for power-saving LED lighting applications. It enables flexible design of buck converters with linear LED integrated buck boost converters and can deliver as much as 4.5 A of dynamic current control. This device is particularly suitable for applications that require efficient, cost-effective and reliable LED lighting control, such as dimming, thermal management, and regulation of photometric parameter.

The device has a wide range of features that make it an ideal choice for LED lighting applications, including fast transient response, finite current regulation, and tight current accuracy. Additionally, the UBA2021P/N2,112 features an integrated four channel programmable current sink that allows for variable output current and a wide operating temperature range that is suitable for many applications, ranging from consumer to automotive.

The UBA2021P/N2,112 uses a unique VFBHyst technology to control LED power, which enables LED brightness control. It also features fast switching and zero-noise switching. The integrated LED dimming allows users to set desired LED brightness through its internal digital/analog control input and/or with an external resistor. The UBA2021P/N2,112 also comes with an integrated photocell to allow for ambient light sensing capabilities.

In terms of its operating principle, the UBA2021P/N2,112 is a monolithic step-down LED driver that uses current mode control and active-clamping technology to regulate LED current in buck LED driver circuits. The UBA2021P/N2,112 features a wide input voltage range that supports 4.5V to 60V supply, allowing for power savings by lowering the input voltage as required.

The UBA2021P/N2,112 integrates a low on-resistance buck converter and a linear LED regulator to provide efficient regulation of LED current and luminance. The NXP Semiconductors buck-and-boost regulator provides the balance between high efficiency and low noise output, and is capable of up to 4.5A of output current.

The UBA2021P/N2,112 also offers a variety of features for protecting the product from damage, including over-voltage, over-current and over-temperature protection. The device can also be configured to provide a programmable soft start and additional features such as dim-down protection.

Overall, the UBA2021P/N2,112 is an ideal choice for many LED lighting applications, such as dimming, thermal management and regulation of photometric parameters. Its wide input voltage range and active-clamping technology enables efficient and reliable LED current and luminance regulation, while its digital inputs make for flexible design options. Its integrated safety mechanisms ensure that lighting applications remain reliable and safe.

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