Full voltage DCAC input high efficiency PWM dimming LED constant current control chip NU310

NU310 Efficient PWMLED constant current drive application uses IC, input voltage can be directly rectified filter power supply, 5000VDC; up to 300 kHz programmable setting frequency drive external high pressure MOSFET; external sampling resistor sets the load current from 10 mA to 1A; It also provides low frequency grayscale PWM dimming function, it is recommended to design 200Hz-1kHz. Features: 1, IC as low as -0.5V start, 2, support AC85V-265V input. 3. Support efficient PWM dimming, which can be launched by the pin low frequency. 4, the current is up to 1A, plug-in MOS can drive the current of more than a dozen A. 5, "90% efficiency. 6, 1-00 LED strings. The NU 310 can drive the upper 100 high brightness LED series or a few string high brightness LEDs, which can be designed to combine a string and parallel combination, which ensures that the LED brightness and spectral are delayed by adjusting the constant flow value. Its feature is that the foot PWM_D can adjust the LED brightness by pulse width modulation (PWM), while simultaneously serving as an enabled, and the chip has no output control. It also continuously adjusts the output current of the LED to control the brightness (also called linear dimming) by continuously adjusting the output current of the LED. The NU 310 can control all converters including isolation / non-quarantine, continuous / discontinuous. When the GATE end outputs a high-level power MOSFET, the LED driver will store the input energy of the inductor or transformer, depending on the type of converter, possibly energy, and transmit partial energy to the LED string. When the power MOSFET is turned off, the energy stored on the magnetic component is converted to the drive current of the LED string. (Work in the Flybac mode). Provide SO8 package form. The NU310 is completely replaced in SuperTex-Hv9910, SMD802.nu310 is also a direct IC that can replace directly in the world. There are many customers who have been used in large quantities. .Ac85-265V full voltage input, plug-in PWM dimming function, the control signal is dimmed at 0 to 100, and more over temperature protection functions, significantly reduce harmonic interference, temperature drop Celsius 30 degrees, current LED fluorescent lamps are generally used. Another DC current input, suitable for the Buck-Boost line design (taillight, brake light) on the car, the Nu310 can do 20W, with 300 0.06W LED. There is currently no replacement, market reactions good. Features: 1, efficiency is greater than 90%, 2, input voltage range 8VDC-500VDC, 3, constant current drive LED, 4, drive current from several millians to exceed 1A, 5, can drive 1 to hundreds of LEDs, 6 , External PWM low frequency dimming, EN enable, 7, external linear dimming. FQJ, read full text