TPS61181ARTER

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PMIC – LED Drivers have become widely used in the world. A number of LED drivers use different array technologies, but one of the popular solutions is the TPS61181ARTER. It is an excellent choice for controlling the performance requirement of LED arrays in automotive, industrial, and consumer applications. In particular, the TPS61181ARTER is ideal for applications that require wider input voltage ranges, higher efficiency, and more precise output voltage regulation.

The TPS61181ARTER application field and working principle revolves around a synchronous forward buck controller. It is able to step down input voltages up to 16V to the exact voltage required for powering a wide range of LEDs. This range can be anywhere from 0.8V to 5.5V, depending on the output current required and the number of LEDs that need to be driven.

The working principle of the TPS61181ARTER is based on a two-stage, constant frequency conversion scheme. The input voltage is received through an input capacitor and buck inductor. Then MOSFET switch turns on and off with an output current range of 10A-60A. The voltage across the inductor decreases until it reaches a certain threshold which then triggers a low-side driver to turn off the MOSFET until the voltage drops to a preset high current window. Once that occurs, the first stage of operation is completed and the second stage begins. During this stage, the output voltage is regulated by a second set of drivers and a complementary driver transistor.

The TPS61181ARTER also incorporates a number of safety and protection features for improved safety in operation. These include an over-voltage protection circuit, over-temperature protection, under voltage lock out (UVLO), crowbar short-circuit protection and an adjustable current limit. Additionally, it features a high efficiency, ranging from 85% to 94% across a broad range of output currents and operating temperatures.

The TPS61181ARTER also offers robust thermal management. It uses a thermal resistor to monitor the device’s thermal characteristics and maintain safe operating parameters. Additionally, the TPS61181ARTER incorporates a transient voltage protection (TVP) feature which further enhances the device’s robustness against voltage transients.

Overall, the TPS61181ARTER is an excellent choice for powering a wide range of LED applications. Due to its high efficiency, maximum output current and precise output voltage regulation, it is ideally suited to automotive, industrial and consumer applications that require the precise, precise, reliable and efficient control of LED arrays.

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