Shenzhen agent LED driver constant current chip NU507

Built-in MOS - NU507 detailed description:???? ???? NU507 wafer characteristics (built MOS + overtemperature protection function) _ ?? ease of linear constant current element _ 80mA constant current drive single-channel maximum output terminals _ ?? Pressure? 400V _ ?? output current is set by an external resistor _? VDD supply voltage? 6V ~ 18V, built-in? 15V? JI satisfied diode protection _? VDD pin do? PWM? modulation, the highest frequency? 5KHz _ ?? can be used in series to improve the conduction angle and light effects _ ?? current accuracy? 4 percent _ ?? power and load modulation rate? 0.5% / V _ ?? 120 ℃ ~ 160 ℃ wafer temperature protection the current decreases with increasing temperature _ ?? Operating ambient temperature? -40 ℃ ~ 85 ℃ _ ?? Lead-free packaging is high-voltage linear power supply components NU507-80MA Description ??? NU507? is a simple high-voltage constant current elements, in various? LED? application lighting products is very easy to use, especially in automotive electronics and AC voltage direct-driven applications, the advantages of low cost and highly efficient energy. Operating current NU507? Which has excellent load and power modulation error rate and minimum output current, make? LED? Stability limit within a set range, a substantial increase? LED? Life. ? In addition to supporting a wide range of power supply to provide power without additional outside, NU507? Of? VDD pin can serve as output enable (OE) function to use, with digital? PWM? Control circuit can be used in gray-scale current control. ? ?? NU507? Supports digital energy technology unique? LED? Tandem drive technology, without the need to convert the power supply voltage, direct and efficient drive multiple satellites in tandem? LED. This tandem drive technology to maintain high conduction angle of the sine wave and high power efficiency. When the supply voltage rises, the voltage will increase by converting electrical energy into light energy. At the same time and having a simple circuit structure and high power factor advantages. In case of need only a few? SMD? Resistors and capacitors, significantly improve product reliability and simplify production procedures. This unique multi-stage cascade driven architecture patent applications. ? NU507? Is a high-voltage linear power supply components, will not produce electromagnetic interference, and its built-in thermal protection, the? Above 125 ℃ will start when the output current is reduced, and at about? 160 ℃ NU507 is a linear constant current IC adjustable output current, high precision constant current, simple applications, cost and RC Buck rather, over-temperature protection, safer and more reliable. The chip can be shared with the PCB aluminum plate, line is simple, low cost package: SOP-8 / T0-252, NU507 high power factor linear constant current LED driver chips, NU507-LED lamp, bulb, ceiling dedicated chip, nu507 -VDD foot supports PWM dimming, the electrolytic capacitor can not support SCR dimming