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參數(shù)資料
| 型號(hào)： | NCP5010FCT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 500 mW Boost Converter for White LEDs |
| 中文描述： | 0.56 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PBGA8 |
| 封裝： | 1.70 X 1.70 MM, LEAD FREE, FLIP-CHIP, CSP-8 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 181K |
| 代理商： | NCP5010FCT1G |
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Semiconductor Components Industries, LLC, 2006
August, 2006 Rev. 1
1
Publication Order Number:
NCP5010/D
NCP5010
500 mW Boost Converter for
White LEDs
The NCP5010 is a fixed frequency PWM boost converter with
integrated rectification optimized for constant current applications
such as driving white LEDs. This device features small size, minimal
external components and highefficiency for use in portable
applications and is capable of providing up to 500 mW output power
to 25 series connected white LEDs. A single resistor sets the LED
current and the CTRL pin can be pulse width modulated (PWM) to
reduce the LED Current.
The device includes TrueCutoff circuitry to disconnect the load
from the battery when the device is put into standby mode. To protect
the device, an output overvoltage protection, and short circuit
protection have been incorporated. The NCP5010 is housed in a low
profile, space efficient 1.7 x 1.7 mm FlipChip package. The device
has been optimized for use with small inductors and ceramic
capacitors.
Features
2.7 to 5.5 V Input Voltage Range
Efficiency: 84% for 5 LED (V
F
= 3.5 V by LED) at 30 mA and
4.2 V V
IN
Low Noise 1 MHz PWM DCDC Converter
Open LED Protection and Short Circuit Protection
Serial LEDs Architecture for Uniform Current Matching
1 A Shutdown Current Facility with TrueCutoff
Very Small 8Pin FlipChip 1.7 x 1.7 mm Package
This is a PbFree Device
Typical Applications
White LED Backlighting for Small Color LCD Displays
Cellular Phones
Digital Cameras
MP3 Players
High Efficiency Stepup Converter
8Pin FlipChip
FC SUFFIX
CASE 499AJ
PIN CONNECTIONS
AGND
A1
MARKING
DIAGRAM
DAX
= Specific Device Code
= PbFree Package
= Assembly Location
= Year
= Work Week
A
Y
WW
Top View
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
1
DAX
AYWW
A1
A2
A3
B1
V
IN
B3
FB
C1
C2
C3
CTRL
NC
V
OUT
SW
PGND
Figure 1. Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
1
10
100
E
V
OUT
= 5 LED (18 V)
V
OUT
= 3 LED (11 V)
V
IN
= 4.2 V
I
OUT
(mA)
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