NCS29001

NCS29001 LED Backlight Driver The NCS29001 is an integrated LED driver used in LCD display backlighting applications. A configurable bill of materials allows the designer to create a highly ef ficient solution for a variety of LCD screen sizes. The NCS29001 uses a boost type converter to deliver constant current in a string of LEDs. High accuracy PWM dimming is supported for a frequency up to 500 Hz . The integrated soft start function provides excellent control during the power up sequence to avoid current overshoot. The device protects against output overvoltage, open / short LED, and thermal overload. The NCS29001 is offered in the cost effective SOIC−14 package. Features http://onsemi.com MARKING DIAGRAM 14 1 SOIC−14 NB CASE 751A 1 14 NCS29001G AWLYWW 8.5 V to 18 V Input Voltage Range ±1% Vref Voltage Accuracy to set LED Current PWM Controlled Dimming Soft Start Limits In−Rush Current Open Feedback Protection Open LED Protection Short LED Protection LED String Cathode Short to ground Protection Max Duty Cycle Above 90% SOIC−14 Package This is a Pb−Free Device NCS29001= Specific Device Code A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = Pb−Free Package PIN CONNECTIONS VIN Vref GND PWMin RT FBP STBY 1 2 3 NCS29001 4 5 6 7 11 10 9 8 PWMout FBN COMP OVP 14 13 12 GATE CS PGND Typical Application TFT−LCD TV Panels LCD Monitor Panels ORDERING INFORMATION See detailed ordering and shipping information on page 15 of this data she...