Lineart launches LED driver suitable for high current LED applications

Linear Technology (LINEAR TECHNOLOGY) previously published a 45V high-voltage power current sensing DC / DC converter LT3518, which is specifically designed to drive high current LEDs, and the 3V input voltage range and 40V transient protection are protected. It makes it an ideal choice for various applications such as automotive, industrial and building lighting. The H grade version element can operate in the surface temperature, E-class and i-level version of 150? C, can operate on 125? C maximum contact temperature. E, I and H version elements are the same, the H grade is tested and guaranteed to operate to 150? C surface temperature, for automotive and industrial applications, etc. The LT3518 can drive 8 350mA white LEDs from nominal 12V input, ideal for applications such as car display backlight. At the same time, the component can sense the output current at the high voltage end of the LED, so it can perform buck, lift or boost configuration. When the boost mode, this component can be provided with 90% efficiency by a small 4mm x 4mm QFN package. The LT3518 provides real color PWM (TRUE Color PWMTM) to provide fixed LED color through the dimming range of 3,000: 1. For lower tuning requirements, the CTRL pin can also be used for 10: 1 type than dimming. The fixed frequency, current mode architecture allows it to provide a stable operation in a wide range of supply and output voltage range. The frequency adjustment pin allows the user to set the frequency between 250kHz and 2.5MHz to achieve the highest efficiency and minimize the external zero component size. LT3518HUF currently available 16-pin QFN package, from $ 3.79 with a thousand quantities. Technology area LED light box controller wiring diagram (three LED light box controller wiring diagram) TI TPS92830-Q1 three-way large current linear LED control scheme Method for improving high brightness of automobile LED forward lights using SOC drive Easy LED Table Light Dimming Circuit Figure Daquan (Six LED Table Light Dimming Simulation Circuit Design Principle 12VLED constant current drive circuit diagram Daquan (six analog circuit design schematic diagram)

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