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NCP5007 Datasheet, PDF (1/22 Pages) ON Semiconductor – Compact Backlight LED Boost Driver | |||
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NCP5007
Compact Backlight LED
Boost Driver
The NCP5007 is a high efficiency boost converter operating in a
current control loop, based on a PFM mode, to drive White LEDs. The
current mode regulation allows a uniform brightness of the LEDs. The
chip has been optimized for small ceramic capacitors and is capable of
supplying up to 1.0 W output power.
Features
⢠Inductor Based Converter brings High Efficiency
⢠Constant Output Current Regulation
⢠2.7 to 5.5 V Input Voltage Range
⢠Vout to 22 V Output Compliance Allows up to 5 LEDs to be Driven
in Series which Provides Automatic LED Current Matching
⢠Builtâin Output Overvoltage Protection
⢠0.3 mA Standby Quiescent Current
⢠Includes Dimming Function (PWM)
⢠Enable Function Driven Directly from Low Battery Voltage Source
⢠Thermal Shutdown Protection
⢠All Pins are Fully ESD Protected
⢠Low EMI Radiation
⢠PbâFree Package is Available
Typical Applications
⢠LED Display Back Light Control
⢠High Efficiency Step Up Converter
http://onsemi.com
5
1
MARKING
DIAGRAM
5
TSOPâ5
(SOT23â5, SCR59â5) DCLYW
SN SUFFIX
CASE 483
1
DCL = Device Code
Y = Year
W = Work Week
PIN CONNECTIONS
FB 1
GND 2
EN 3
5 Vbat
4 Vout
(Top View)
Vbat
GND
U1
3 EN
Vbat
5
Vbat
L1
22 mH
C1
4.7 mF
GND
2
GND
1
FB
Vout 4
NCP5007
D1
MBR0530
C2
1.0 mF
ORDERING INFORMATION
Device
Package
Shippingâ
NCP5007SNT1 TSOPâ5 3000 Tape & Reel
NCP5007SNT1G TSOPâ5 3000 Tape & Reel
(PbâFree)
â 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.
GND
R1
D6 D5 D4 D3 D2
5.6 W
Figure 1. Typical Application
GND
© Semiconductor Components Industries, LLC, 2004
1
July, 2004 â Rev. 4
Publication Order Number:
NCP5007/D
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