National's Powerwise LED family offers the best power/performance ratio in its class, with up to 96% efficiency, including the industry's premier high-brightness LED driver with dimming technology and fail-safe features that dramatically increase Durability and reliability. It is easy to use, requires only a minimum of external components, and is equipped with a complete set of design tools. The WEBENCH LED design tools are award-winning in the industry and can easily assist you in the design of your lighting system. As LEDs become high-energy, high-quality lighting solutions, they are used more and more, including street lights, buildings, automobiles, mobile phones, home and consumer electronics. The following products can be purchased online at The key recommended products are as follows:
LM3421/LM3423
An N-channel controller for constant current LED drivers that provides a 75V operating voltage rating and an adjustable high-side current sensing with a typical voltage of 100mV for LEDs at the highest frequencies The current is rigorously regulated. The LED's output current regulation uses peak current mode control with predictive shutdown control to simplify loop compensation design with inherent input voltage feedforward compensation.
LM3406/LM3406HV
A 1.5A constant current buck regulator for high-power LED drivers with a high-side N-channel MOSFET switch with a typical current limit of 2.0A, which controls the turn-on time with true average current. In addition, the regulator has an external sense resistor that regulates the output voltage as required to provide a constant current for each type of series-connected or series-parallel LED string.
LM3431
A 3-channel constant current LED driver with integrated boost controller is ideal for space-constrained applications to drive LED backlights. The device can simultaneously drive three external NPN transistors or MOSFETs to provide high-precision constant current for three LED strings, and can be further expanded to support up to six strings.
LM3433
An LED driver with high frequency dimming performance provides constant current for high power LEDs for illumination. The device's output configuration allows multiple LED anodes to be directly connected to a chassis with a ground reference for improved thermal efficiency. In addition, the device's analog current control input allows the user to compensate for manufacturing variations in the LED and/or to correct the color temperature.
USB3.0 provides a standard interface for all kinds of devices that are connected to PCS or audio/high-frequency devices.The theoretical transmission speed is up to 5Gbps. HUB is commonly known as a hub, which is used to connect multiple computers or network devices in a network using a star topology. The USB 3.0 Hubs is an upgrade of the USB 2.0 Hubs. The transmission rate of the USB2.0 is 480Mbps, and the transmission rate of the USB3.0 is 5Gbps. The maximum transmission speed is 10 times that of the USB2.0, and the transmission speed is faster.
The USB 3.0 hub provides a quick and easy way to connect all the peripherals you use on your desktop. You can connect 2 external monitors, gigabit Ethernet ports, headphones/speakers, USB printers and scanners, keyboards, mice and other peripherals with a single USB 3.0 cable to your computer for up to 5Gbit/s external storage access (10 times faster than USB 2.0). USB HUBS can do split, but not evenly. If, as the subject says, you only have two devices, and the two devices are transmitting at the same time and taking up as much bandwidth as possible, then you end up with two devices each taking up 50% of the bandwidth. Due to the fast theoretical speed of USB3.0, even if divided into four parts, the theoretical bandwidth of each port is still as high as 1Gbps, and the number of converted bytes is close to 100MB/s, which is still a very high bandwidth.
Usb 3.0 Hubs,Wireless Usb Hub,Usb C Hub For Desktop,All In One Usb C Hub
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