BTS4160DGAXUMA1

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Introduction

The BTS4160DGAXUMA1 (hereafter referred to as the BTS4160) is a next-generation Power Distribution Switch, Load Driver and Level Shifting IC from Infineon Technologies. This IC is design around an optimized core system and provides an identical dimming solution for any dimming and backlighting application. In this article, we will look at the application fields for the BTS4160, its working principle, and how, when optimized, it provides superior performance.

Application Fields for BTS4160

The BTS4160 is an ideal solution for any display dimming and backlighting applications. It is ideally suited for LCD TVs, Computer Monitors, and Projectors. It is also popular in tablets, notebooks and other computing devices. The BTS4160 is capable of driving up to 4 channels with up to 400mA per channel and features exceptional tolerance to current and voltage variations. Furthermore, it has built-in over-voltage and under-voltage protection, thermal shutdown and over-current protection.

The BTS4160\'s primary application field is LED lighting. It is designed to drive LED arrays of any size and type, while providing a very low minimum load. It also provides an innovative low end dimming range and a large dynamic range, thus allowing various complex LED luminance profiles to be created. Furthermore, the BTS4160 guarantees high ESD and EOS protection on its outputs, making it a safe choice for any lighting application.

Working Principle of the BTS4160

The BTS4160 is based on a single stage architecture that integrates a high-side DMOS MOSFET (up-to 6V drain voltage) with pre-driver and a gate driver. It is designed with a level shifter to allow direct interfacing between 3.3V and 5V control systems, while also providing a very low quiescent current level (‹400µA). A patented device configuration allows the implementation of an advanced dimming profile, allowing refinements to the LED light output profile. The MOSFET can be disabled at any time using the Disable pin, allowing direct control over the LED lights.

The BTS4160 also provides a wide range of softstart/softstop parameters for improved LED reliability and protection. The R2 pin controls the drain current, while the R6 pin provides the ability to control the LED dimming profile in different ways, such as linear, logarithmic and sinusoidal dimming. The device also includes integrated thermal and electrical protection for LEDs and cables, so that the LED life is maximized.

Conclusion

The BTS4160 is an exceptional Power Management and Load Driver IC, designed specifically to provide LED dimming and backlighting applications with excellent performance, reliability and efficiency. It is a perfect solution for any application where LED lighting must be controlled, and offers features such as level shifting, integrated thermal and electrical protection, and a wide range of dimming capabilities.

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