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NCP5009

ON Semiconductor
Part Number NCP5009
Manufacturer ON Semiconductor
Description Backlight LED Boost Driver
Published Dec 21, 2006
Detailed Description NCP5008, NCP5009 Backlight LED Boost Driver The NCP5008/NCP5009 is a high efficiency boost converter operating in curr...
Datasheet PDF File NCP5009 PDF File

NCP5009
NCP5009

Overview
NCP5008, NCP5009 Backlight LED Boost Driver The NCP5008/NCP5009 is a high efficiency boost converter operating in current loop control mode to drive Light Emitting Diode.
The current mode regulation allows a uniform brightness of the LEDs.
Features • 2.
7 to 6.
0 V Input Voltage Range • Output Voltage from Vbat to 15 V • 3.
0 mA Quiescent Supply Current • Automatically LEDs Current Matching • No External Sense Resistor • Includes Dimming Function • Programmable or Automatic Current Output Mode • LOCAL or REMOTE Control Facility • Photo Transistor Sense Feedback Input • Inductor Based Converter brings High Efficiency • Low Noise DC/DC Converter • All Pins are Fully ESD Protected • Pb−Free Package is Available Typical Applications • LED Display Back Light Control • High Efficiency Step Up Converter Vbat R1 30 k GND U1 1 Iref 2 PHOTO C1 Vbat 10 9 L1 10 mF/6.
3 V GND Q1 NPN−PHOTO Vbat GND Vcc 4 3 5 VBIAS CS CLK NCP5009 D1 D2 8 L2 7 GND 6 LOCAL D3 D4 L1 22 mH D5 MBR0520 GND MICROCONTROLLER LED LED LED LED GND C2 GND 2.
2 mF/16 V Figure 1.
Typical Battery Powered LED Boost Driver http://onsemi.
com MARKING DIAGRAM Micro 10 DM SUFFIX 5Tx AYW G 1 CASE 846B G 1 5Tx = Device Number x = 8 or 9 A = Assembly Location Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS Iref NC CS VBIAS CLOCK 1 2 3 4 5 10 Vbat 9 L1 8 L2 Iout 7 GND 6 LOCAL NCP5008 Iref Photo CS VBIAS CLOCK 1 2 3 4 5 10 Vbat 9 L1 8 L2 Iout 7 GND 6 LOCAL NCP5009 ORDERING INFORMATION Device Package Shipping† NCP5008DMR2 NCP5008DMR2G Micro 10 4000 / Tape & Reel Micro 10 4000 / Tape & Reel (Pb−Free) NCP5009DMR2 Micro 10 4000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2006 April, 2006 − Rev.
7 1 Publication Order Number: NCP5008/D NCP5008, NCP5...


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