EL7585A Datasheet PDF - Intersil Corporation
| Part Number | EL7585A | |
| Description | TFT-LCD Power Supply | |
| Manufacturers | Intersil Corporation | |
| Logo |  |
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®
Data Sheet
March 9, 2006
EL7585A
FN7523.3
TFT-LCD Power Supply
The EL7585A represents a multiple output regulators for use
in all large panel, TFT-LCD applications. It features a single
boost converter with integrated 3.5A FET, two positive LDOs
for VON and VLOGIC generation, and a single negative LDO
for VOFF generation. The boost converter can be
programmed to operate in either P-mode or PI-mode for
improved load regulation.
The EL7585A also integrates fault protection for all four
channels. Once a fault is detected, the device is latched off
until the input supply or EN is cycled. This device also
features an integrated start-up sequence for VBOOST, VOFF,
then VON or for VOFF, VBOOST, and VON sequencing. The
latter requires a single external transistor. The timing of the
start-up sequence is set using an external capacitor. The
VLOGIC output is constantly enabled, but does shut down
when a fault condition is detected.
The EL7585A is specified for operation over the -40°C to
+85°C temperature range.
Pinout
www.DataSheet4U.com
EL7585A
(20 LD QFN)
TOP VIEW
CDLY 1
DELB 2
LX1 3
LX2 4
DRVP 5
THERMAL
PAD
15 CINT
14 VREF
13 PGND
12 PGND
11 FBN
Features
• 3.5A current limit FET options
• 3V to 5V input
• Up to 20V boost out
• 1% regulation on all outputs
• VOFF-VBOOST-VON or
VBOOST-VOFF-VON sequence control
- VLOGIC is on from start-up for EL7585A
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 20 Ld QFN packages
• Pb-free plus anneal available (RoHS compliant)
Applications
• LCD monitors (15”+)
• LCD-TV (up to 40”+)
• Notebook displays (up to 16”)
• Industrial/medical LCD displays
Ordering Information
PART
PART NUMBER MARKING
TAPE & PKG.
PACKAGE REEL DWG. #
EL7585AILZ
(Note)
7585AIL Z 20 Ld 4x4 QFN - MDP0046
(Pb-free)
EL7585AILZ-T7 7585AIL Z 20 Ld 4x4 QFN 7” MDP0046
(Note)
(Pb-free)
EL7585AILZ-T13 7585AIL Z 20 Ld 4x4 QFN 13” MDP0046
(Note)
(Pb-free)
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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EL7585A
Typical Performance Curves
100
90 VO=9V
80
70 VO=12V
60 VO=15V
50
40
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6
IOUT (A)
FIGURE 1. VBOOST EFFICIENCY AT VIN=3V (PI MODE)
100
90
VO=9V
80 VO=12V
70 VO=15V
60
50
40
30
20
10
0
0 0.5 1 1.5
IOUT (A)
FIGURE 2. VBOOST EFFICIENCY AT VIN=5V (PI MODE)
100
90 VO=9V
80
70
60
VO=15V
VO=12V
50
40
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
IOUT (A)
FIGURE 3. VBOOST EFFICIENCY AT VIN=3V (P MODE)
100
90
VO=9V
80
70
VO=15V
VO=12V
60
50
40
30
20
10
0
0 0.5 1 1.5
IOUT (A)
FIGURE 4. VBOOST EFFICIENCY AT VIN=5V (P MODE)
0
-0.1
-0.2 VO=9V
-0.3 VO=15V
-0.4
-0.5
0
VO=12V
0.1 0.2 0.3 0.4 0.5 0.6
IOUT (A)
FIGURE 5. VBOOST LOAD REGULATION AT VIN=3V (PI MODE)
0
-0.1
VO=9V
-0.2
-0.3
-0.4 VO=12V
-0.5 VO=15V
-0.6
0 0.2 0.4 0.6 0.8 1 1.2 1.4
IOUT (A)
FIGURE 6. VBOOST LOAD REGULATION AT VIN=5V (PI MODE)
5 FN7523.3
March 9, 2006
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| Information | Total 19 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ EL7585A.PDF Datasheet ] | |
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