On Semiconductor NCP5005 Evaluation Board NCP5005GEVB NCP5005GEVB NCP5005GEVB データシート
製品コード
NCP5005GEVB
©
Semiconductor Components Industries, LLC, 2005
November, 2005 − Rev. 1
1
Publication Order Number:
NCP5005/D
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.
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
TSOP−5
SN SUFFIX
CASE 483
PIN CONNECTIONS
Device
Package
Shipping†
ORDERING INFORMATION
NCP5005SNT1G
TSOP−5
(Pb−Free)
3000 Tape & Reel
MARKING
DIAGRAM
DIAGRAM
1
5
DBN = Device Code
A
A
= Assembly Location
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
1
5
DBNAYW
G
G
1
3
EN
V
out
2
GND
FB
4
V
bat
5
(Top View)
†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.
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
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