EL9200 Datasheet, PDF (1/15 Pages) Intersil Corporation – Programmable VCOM

®
Data Sheet
EL9200, EL9201, EL9202
October 30, 2008
FN7438.1
Programmable V_COM
The EL9200, EL9201, and EL9202 represent programmable
V_COM amplifiers for use in TFT-LCD displays. Featuring 1,
2, and 4 channels of V_COM amplification, respectively, each
device features just a single programmable current source
for adding offset to one V_COM output. This current source is
programmable using a single wire interface to one of 128
levels. The value is stored on an internal EEPROM memory.
The EL9200 is available in the 12 LD DFN package and the
EL9201 and EL9202 are available in 24 LD QFN packages.
All are specified for operation over the -40°C to +85°C
temperature range.
Typical Block Diagram
V_SD
A_VDD
CE
V_S+
INN
-
+
EEPROM
R_F
R_G
V_OUT
INP
GND
A_VDD
R₁
R₂
CTL
CONTROL
GND
UP/DOWN
COUNTER
ANALOG
POT
I_OUT
SET
R_SET
Features
• 128 Step Adjustable Sink Current
• EEPROM Memory
• 2-pin Adjustment and Disable
• Single, Dual or Quad Amplifiers
- 44MHz Bandwidth
- 80V/µs Slew Rate
- 60mA Continuous Output
- 180mA Peak Output
• Up to 18V Operation
• 2.6V to 3.6VLogic Control
• Pb-free Available (RoHS compliant)
Applications
• TFT-LCD V_COM Supplies For
- LCD-TVs
- LCD Monitors
Pinouts
EL9200
(12 LD DFN)
TOP VIEW
EL9201
(24 LD QFN)
TOP VIEW
EL9202
(24 LD QFN)
TOP VIEW
VINA- 1
GND 2
VINA+ 3
IOUT 4
AVDD 5
GND 6
THERMAL
PAD
12 VS+
11 VOUTA
10 SET
9 CE
8 CTL
7 VSD
NC 1
NC 2
VINB+ 3
IOUT 4
NC 5
AVDD 6
GND 7
THERMAL
PAD
19 NC
VOUTA 1
18 VOUTA VOUTD 2
17 VS+
VIND- 3
16 VOUTB
NC 4
15 VINB-
VIND+ 5
14 SET
AVDD 6
13 CE
CTL 7
THERMAL
PAD
19 VOUTB
18 VOUTC
17 VINC-
16 NC
15 VINC+
14 GND
13 AVDD
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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