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NCP5009DMR2 Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP5009DMR2 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 20 page © Semiconductor Components Industries, LLC, 2003 August, 2003 − Rev. 4 1 Publication Order Number: NCP5008/D 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 V bat 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 Typical Applications • LED Display Back Light Control • High Efficiency Step Up Converter Figure 1. Typical Battery Powered LED Boost Driver Iref PHOTO L2 CS CLK 1 2 Q1 NPN−PHOTO GND 4 Vbat 3 5 6 LOCAL GND 7 4 8 GND L1 9 Vbat 10 R1 30 k GND Vcc GND NCP5009 L1 22 mH Vbat C1 10 mF/6.3 V GND D5 MBR0520 LED D1 LED D2 LED D3 LED D4 2.2 mF/16 V C2 GND U1 VBIAS Micro 10 DM SUFFIX CASE 846B PIN CONNECTIONS Iref Vbat NC CS VBIAS L1 L2 Iout GND 110 2 3 4 9 8 7 10 1 5Tx AYW MARKING DIAGRAM x = Device Number 8 or 9 A = Assembly Location Y = Year W = Work Week CLOCK 5 LOCAL 6 Iref Vbat Photo CS VBIAS L1 L2 Iout GND 110 2 3 4 9 8 7 CLOCK 5 LOCAL 6 NCP5008 NCP5009 See detailed ordering and shipping information in the package dimensions section on page 18 of this data sheet. ORDERING INFORMATION http://onsemi.com |
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