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NCP5007/D Datasheet

  • NCP5007/D

  • Compact Backlight LED Boost Driver

  • 22頁(yè)

  • ETC

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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
http://onsemi.com
MARKING
DIAGRAM
5
TSOP鈭?
(SOT23鈭?, SCR59鈭?)
DCLYW
SN SUFFIX
1
CASE 483
DCL = Device Code
Y
= Year
W = Work Week
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Inductor Based Converter brings High Efficiency
Constant Output Current Regulation
2.7 to 5.5 V Input Voltage Range
V
out
to 22 V Output Compliance Allows up to 5 LEDs to be Driven
in Series which Provides Automatic LED Current Matching
Built鈭抜n 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
Lead鈭扚ree Package
5
1
PIN CONNECTIONS
FB
GND
EN
1
2
3
(Top View)
4
V
out
5
V
bat
Typical Applications
鈥?/div>
LED Display Back Light Control
鈥?/div>
High Efficiency Step Up Converter
V
bat
U1
3
EN
V
bat
5
V
bat
C1
4.7
mF
L1
22
mH
2
1
V
out
4
D1
MBR0530
GND
ORDERING INFORMATION
Device
NCP5007SNT1G*
Package
TSOP鈭?
Shipping
3000 Tape & Reel
*G suffix indicates a Pb鈭抐ree.
GND
GND
FB
NCP5007
C2
1.0
mF
R1
GND
5.6
W
D6
D5
D4
D3
D2
GND
Figure 1. Typical Application
漏
Semiconductor Components Industries, LLC, 2003
1
September, 2003 鈭?Rev. 1
Publication Order Number:
NCP5007/D

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