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NCP5006

ON Semiconductor
Part Number NCP5006
Manufacturer ON Semiconductor
Description Compact Backlight LED Boost Driver
Published Apr 25, 2007
Detailed Description NCP5006 Compact Backlight LED Boost Driver The NCP5006 is a high efficiency boost converter operating in current loop, ...
Datasheet PDF File NCP5006 PDF File

NCP5006
NCP5006

Overview
NCP5006 Compact Backlight LED Boost Driver The NCP5006 is a high efficiency boost converter operating in current loop, based on a PFM mode, to drive White LED.
The current mode regulation allows a uniform brightness of the LEDs.
The chip has been optimized for small ceramic capacitors, capable to supply up to 1.
0 W output power.
Features • 2.
7 to 5.
5 V Input Voltage Range • Vout to 24 V Output Compliance Allows up to 5 LEDs Drive in Series • Built−in Overvoltage Protection • Inductor Based Converter brings up to 90% Efficiency • Constant Output Current Regulation • 0.
3 mA Standby Quiescent Current • Includes Dimming Function (PWM) • Enable Function Driven Directly from Low Battery Voltage Source • Automatic LEDs Current Matching • Thermal Shutdown Protection • All Pins are Fully ESD Protected • Low EMI Radiation • Pb−Free Package is Available Typical Applications • LED Display Back Light Control • Keyboard Back Light • High Efficiency Step Up Converter www.
onsemi.
com 5 1 TSOP−5 SN SUFFIX CASE 483 MARKING DIAGRAM 5 DCSAYWG G 1 DCS = Device Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS Vout 1 GND 2 5 Vbat FB 3 4 EN (Top View) ORDERING INFORMATION Device Package Shipping† NCP5006SNT1 TSOP−5 3000 Tape & Reel NCP5006SNT1G TSOP−5 3000 Tape & Reel (Pb−Free) †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 1 March, 2006 − Rev.
2 Publication Order Number: NCP5006/D NCP5006 Vbat GND U1 4 EN 5 Vbat 2 GND 3 FB 1 Vout NCP5006 Vbat C1 4.
7 mF L1 22 mH D1 MBR0530 GND C2 1.
0 mF GND R1 15 W D6 D5 D4 D3 D2 GND LWT67C LWT67C LWT67C LWT67C LWT67C Figure 1.
Typical Application Thermal Shutdown Current Sense Vsense Vbat 5 Vbat CONTROLLER EN 4 100 k GND FB 3 - 300 k + +200 mV Band Gap ...


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