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PDF EL7513 Data sheet ( Hoja de datos )
| Número de pieza | EL7513 | |
| Descripción | White LED Step-Up Regulator | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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®
Data Sheet
July 2003
EL7513
FN7112.2
White LED Step-Up Regulator
The EL7513 is a constant current
boost regulator specially designed for
driving white LEDs. It can drive 4
LEDs in series or up to 12 LEDs in parallel/series
configuration and achieves efficiency up to 91%.
The brightness of the LEDs is adjusted through a voltage
level on the CNTL pin. When the level falls below 0.1V, the
chip goes into shut-down mode and consumes less than
1µA of supply current for VIN less than 5.5V.
The EL7513 is available in the 8-pin TSOT and 8-pin MSOP
packages. The TSOT package is just 1mm high, compared
to 1.45mm for the standard SOT23 package.
Ordering Information
PART
NUMBER
EL7513IWT
EL7513IWT-T7
EL7513IWT-T13
EL7513IY
EL7513IY-T7
EL7513IY-T13
PACKAGE
8-Pin TSOT
8-Pin TSOT
8-Pin TSOT
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
TAPE &
REEL
-
7”
13”
-
7”
13”
PKG. DWG. #
MDP0049
MDP0049
MDP0049
MDP0043
MDP0043
MDP0043
Pinouts
EL7513
(8-PIN TSOT)
TOP VIEW
COMP 1
CNTL 2
VOUT 3
LX 4
8 VIN
7 CS
6 SGND
5 PGND
EL7513
(8-PIN MSOP)
TOP VIEW
CS 1
VIN 2
PGND 3
SGND 4
8 CNTL
7 COMP
6 LX
5 VOUT
Features
• 2.6V to 13.2V input voltage
• 18V maximum output voltage
• Drives up to 12 LEDs
• 1MHz switching frequency
• Up to 91% efficiency
• 1µA maximum shut-down current
• Dimming control
• 8-pin TSOT and 8-pin MSOP packages
Applications
• PDAs
• Cellular phones
• Digital cameras
• White LED backlighting
Typical Connection
2.6V TO
5.5V C1
4.7µF
L
33µH
VCTRL
C3
0.1µF
VIN LX
VOUT
CS
CNTL PGND
COMP SGND
D
C2
1µF
R1
5Ω
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
1 page  
EL7513
Typical Performance Curves (Continued)
All performance curves and waveforms are taken with C1 = 4.7µF, C2 = 1µF, C3 = 0.1µF, L = 33µF, VIN = 3.3V, VCNTL = 1V, R1 = 5Ω, 4 LEDs in a
series; unless otherwise specified.
VIN
4.7µF
L
33µH
BAT54HT1
1µF
4 LEDs IN A SERIES
90
VCTRL
0.1µF
8 VIN
LX 4
VOUT 3
CS 7
2 CNTL PGND 5
1 COMP SGND 6
5Ω
VIN=4.2V
85
VIN=3.3V
VIN=2.7V
80
75
L=COILCRAFT LPO1704-333CM
70
5 10 15 20
LED CURRENT (mA)
25
30
FIGURE 7A. 4 LEDs IN A SERIES
FIGURE 7.
FIGURE 7B. EFFICIENCY vs IO
VIN
4.7µF
L
33µH
BAT54HT1
1µF
8 VIN
LX 4
VCTRL
0.1µF
VOUT 3
CS 7
2 CNTL PGND 5
1 COMP SGND 6
5Ω 5Ω
FIGURE 8A. 2 LEGS OF 2 LEDs IN A SERIES
FIGURE 8.
2 LEGS OF 2 LEDs IN A SERIES
90
VIN=4.2V
85
VIN=2.7V
80
75
L=COILCRAFT LPO1704-333CM
70
10 20 30 40
50
IO (mA)
FIGURE 8B. EFFICIENCY vs IO
60
VIN
4.7µF
L
33µH
BAT54HT1
1µF
8 VIN
LX 4
VCTRL
0.1µF
VOUT 3
CS 7
2 CNTL PGND 5
1 COMP SGND 6
5Ω 5Ω
FIGURE 9A. 2 LEGS OF 3 LEDs IN A SERIES
FIGURE 9.
2 LEGS OF 3 LEDs IN A SERIES
90
VIN=4.2V
85
VIN=2.7V
80
75
L=SUMIDA CMD13D13-33µH
70
10 20 30 40
50
IO (mA)
FIGURE 9B. EFFICIENCY vs IO
60
5
5 Page 
Package Outline Drawing
EL7513
NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at
<http://www.intersil.com/design/packages/index.asp>
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
11
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| PDF Descargar | [ Datasheet EL7513.PDF ] | |
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