NCP5005 Datasheet, PDF (1/23 Pages) ON Semiconductor – Compact Backlight LED Boost Driver

NCP5005
Compact Backlight LED
Boost Driver
The NCP5005 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
• V_out to 24 V Output Compliance Allows up to 5 LEDs Drive in
Series
• Built−in Overvoltage Protection
• Full EMI Immunity
• 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
http://onsemi.com
5
1
TSOP−5
SN SUFFIX
CASE 483
MARKING
DIAGRAM
5
DBNAYWG
G
1
DBN = Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
V_out 1
GND 2
5 V_bat
FB 3
4 EN
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCP5005SNT1G 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, 2005
1
November, 2005 − Rev. 1
Publication Order Number:
NCP5005/D