is an IC designed for driving LEDs, capable of providing The WS9082up to 1A of current with integrated protection features and programmable current settings for cost optimization.
Integrated Circuits (IC's) are an essential part of modern electronics, both in terms of function and cost. The price of an IC chip can range from just a few cents to several dollars, depending on the complexity of the chip. The WS9082 LED Constant Current Drive IC is an example of an IC specifically designed for driving light emitting diodes (LED's).
The WS9082 is a high efficiency constant current driver that operates from 5V~12V nominal supply voltage and is capable of providing up to 1A of current to an LED. It includes integrated protection features such as under-voltage lockout (UVLO) and over-current protection, as well as their associated logic blocks for the most basic level of circuit protection. The IC also features programmable current settings, allowing for easy configuration of the LED current setting without the need for external components.
The WS9082 is designed to contribute to the cost optimization of LED application designs. As a stand-alone driver, it eliminates the need for expensive external current sense resistors and, instead, employs its internal current sensing to accurately set and control the LED current. Its constant current accuracy can reach ±2.5% even at 2V input voltage. Further cost reductions are achieved with the integration of a bypass transistor, making it possible to operate other circuits in parallel to the LED driver with no adverse affects.
The ease and accuracy of use combined with excellent thermal performance make the WS9082 ideal for a wide range of LED applications, including LED backlighting, LED strip lighting, LED display systems and general LED lighting applications. It can handle a wide array of LED types, from low voltage to high voltage applications, and is supported by a comprehensive suite of software and documentation for design verification, including parametric simulation models, electrical test reports and real-world thermal analysis.