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PDF EL7586 Data sheet ( Hoja de datos )
| Número de pieza | EL7586 | |
| Descripción | TFT-LCD Power Supply | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EL7586 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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®
Data Sheet
EL7586, EL7586A
January 17, 2006
FN9210.2
TFT-LCD Power Supply
The EL7586 and EL7586A represent multiple output
regulators for use in all large panel, TFT-LCD applications.
Both feature a single boost converter with an integrated 2A
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.
Both EL7586 and EL7586A also integrate fault protection for
all four channels. Once a fault is detected, the device is
latched off until the input supply or EN is cycled. EL7586
also features an integrated start-up sequence for
VBOOST/VLOGIC, VOFF, then VON or for VLOGIC, VOFF,
VBOOST, and VON. The latter requires a single external
transistor. The timing of the start-up sequence is set using
an external capacitor.
EL7586A features an immediately-enabled VLOGIC output
which is independent of EN input. The VLOGIC output will be
switched off if a fault is detected and the power supply needs
to be recycled to reset this condition.
Both the EL7586 and EL7586A are pin-compatible, come in
the 20 Ld 4x4 QFN package, and are specified for operation
over the -40°C to +85°C temperature range.
Ordering Information
PART TAPE &
PART NUMBER MARKING REEL PACKAGE
PKG.
DWG. #
EL7586ILZ
(Note)
7586ILZ
- 20 Ld 4x4 QFN MDP0046
(Pb-free)
EL7586ILZ-T7 7586ILZ
(Note)
7” 20 Ld 4x4 QFN MDP0046
(Pb-free)
EL7586ILZ-T13 7586ILZ
(Note)
13” 20 Ld 4x4 QFN MDP0046
(Pb-free)
EL7586AILZ
(Note)
7586AIL Z
- 20 Ld 4x4 QFN MDP0046
(Pb-free)
EL7586AILZ-T7 7586AIL Z
(Note)
7” 20 Ld 4x4 QFN MDP0046
(Pb-free)
EL7586AILZ-T13 7586AIL Z
(Note)
13” 20 Ld 4x4 QFN MDP0046
(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.
Features
• 2A current limit FET options
• 3V to 5V input
• Up to 20V boost out
• 1% regulation on all outputs
• VLOGIC-VOFF-VBOOST-VON or
VBOOST/VLOGIC-VOFF-VON sequence control
- VLOGIC is on from start-up for EL7586A
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 20 Ld 4x4 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
Pinout
EL7586, EL7586A
(20 LD 4X4 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
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.
1 page  
Typical Performance Curves
EL7586, EL7586A
100
AVDD=9V
80
AVDD=12V
60 AVDD=15V
40
20
0 0 100 200 300 400
IOUT (mA)
FIGURE 1. VBOOST EFFICIENCY AT VIN = 3V (PI MODE)
100
80
AVDD=15V
AVDD=12V
60 AVDD=9V
40
20
0 0 200 400 600 800
IOUT (mA)
FIGURE 2. VBOOST EFFICIENCY AT VIN = 5V (PI MODE)
100
AVDD=9V
80
60 AVDD=15V AVDD=12V
40
20
0
0 100 200 300 400 500
IOUT (mA)
FIGURE 3. VBOOST EFFICIENCY AT VIN = 3V (P MODE)
100
80 AVDD=12V
AVDD=15V
60 AVDD=9V
40
20
0 0 200 400 600 800
IOUT (mA)
FIGURE 4. VBOOST EFFICIENCY AT VIN = 5V (P MODE)
0
-0.1
-0.2 AVDD=9V
-0.3
-0.4 AVDD=15V
-0.5 AVDD=12V
-0.6
-0.7
0
100 200 300
IOUT (mA)
400
FIGURE 5. VBOOST LOAD REGULATION AT VIN = 3V (PI MODE)
0
-0.2
-0.4
AVDD=12V
-0.6
AVDD=9V
AVDD=15V
-0.8
-1 0 200 400 600 800
IOUT (mA)
FIGURE 6. VBOOST LOAD REGULATION AT VIN = 5V (PI MODE)
5 FN9210.2
January 17, 2006
5 Page 
EL7586, EL7586A
SLOPE
COMPENSATION
CLOCK
SHUTDOWN
& STARTUP
CONTROL
Ifb
CURRENT
AMPLIFIER
Iref
FBB
GM
AMPLIFIER
REFERENCE
GENERATOR
PWM
LOGIC
BUFFER
Ifb
VOLTAGE
AMPLIFIER
Iref
LX
CINT
PGND
FIGURE 26. BLOCK DIAGRAM OF THE BOOST REGULATOR
11 FN9210.2
January 17, 2006
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet EL7586.PDF ] | |
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