MAX9551EUA+T Maxim Integrated Products, MAX9551EUA+T Datasheet

IC BUFFER VCOM 8-UMAX

MAX9551EUA+T

Manufacturer Part Number
MAX9551EUA+T
Description
IC BUFFER VCOM 8-UMAX
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX9551EUA+T

Applications
TFT-LCD Panels: VCOM Driver
Number Of Circuits
2
Current - Supply
2mA
Current - Output / Channel
55mA
Voltage - Supply, Single/dual (±)
6 V ~ 20 V, ±3 V ~ 10 V
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width), Exposed Pad
Operating Supply Voltage
7 V to 20 V
Maximum Power Dissipation
824.7 mW
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX9550/MAX9551/MAX9552 provide a VCOM
source for TFT LCDs. The MAX9550/MAX9551/
MAX9552 source and sink a large current to quickly
restore the VCOM voltage, making it ideal for TFT LCDs.
The output settles to within 0.1% in less than 2µs. In
addition, the MAX9550/MAX9551/MAX9552 directly drive
the capacitive load in the VCOM layer of the TFT LCDs
without the need for a series resistor.
The MAX9550/MAX9551/MAX9552 feature single, dual,
and quad channel VCOM amplifiers, respectively. The
MAX9550/MAX9551/MAX9552 can drive up to 800mA of
peak current per channel and operate up to 20V. The
devices feature soft-start to reduce inrush current, output
short-circuit protection, and thermal shutdown.
The MAX9550 is available in a space-saving 5-pin thin
SOT23 package, and an 8-pin µMAX
exposed paddle. The MAX9551 is available in an 8-pin
µMAX package with an exposed paddle. The MAX9552
is available in a 14-pin TSSOP package. All devices are
specified over the -40°C to +85°C temperature range.
19-3858; Rev 3; 10/07
Pin Configuration appears at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TFT-LCD Panels
Instrument Control Voltage Sources
V
REF
________________________________________________________________ Maxim Integrated Products
General Description
IN+
IN-
SUPPLY
16V
Applications
High-Current VCOM Drive Buffers
MAX9550
®
GND
package with an
V
DD
OUT
♦ Operates Up To 20V
♦ 800mA Peak Output Current
♦ Settles to Within 0.1% of V
♦ Excellent Load Regulation
♦ Thermal-Shutdown Protection
♦ Short-Circuit Protection to Both Rails
♦ Soft-Start to Reduce Inrush Current
Note: All devices specified over the -40°C to +85°C operating
temperature range.
+Denotes lead-free package.
*EP = Exposed paddle.
MAX9550EZK+T
MAX9550EUA+
MAX9551EUA+
MAX9552EUD+
PART
1µF
Typical Operating Circuit
AMPS PIN-PACKAGE
1
1
2
4
Ordering Information
TFT LCD
for TFT LCDs
5 Thin SOT23-5
8 µMAX-EP*
8 µMAX-EP*
14 TSSOP-EP*
TFT-LCD
CAPACITANCE
OUT
in Less than 2µs
U14E-3
CODE
U8E-2
U8E-2
Features
PKG
Z5-1
MARK
ADSG
AABA
TOP
1

Related parts for MAX9551EUA+T

MAX9551EUA+T Summary of contents

Page 1

... Pin Configuration appears at end of data sheet. IN+ V REF IN- µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. High-Current VCOM Drive Buffers ♦ Operates Up To 20V ♦ ...

Page 2

High-Current VCOM Drive Buffers for TFT LCDs ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to GND) ................................-0.3V to +22V DD Any Other Pin to GND ................................-0. IN+/IN- (current) ...............................................................±20mA OUT, OUT_ (current)................................................................1A Continuous Power Dissipation (T = +70°C) A ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 16V, GND = 0V OUT T = +25°C.) (Note 1) A PARAMETER SYMBOL AC CHARACTERISTICS Settling Time Input Capacitance Transconductance Transient Output Current I OUTMAX Note 1: All devices are ...

Page 4

High-Current VCOM Drive Buffers for TFT LCDs (V = 16V, GND = 0V OUT SUPPLY CURRENT vs. SUPPLY VOLTAGE 3 +85° +25°C A 2.0 1 ...

Page 5

PIN MAX9550 MAX9551 MAX9552 THIN µMAX SOT23 1 6 — — — — — 1 — — 3 — — 2 — — — — 5 ...

Page 6

High-Current VCOM Drive Buffers for TFT LCDs Detailed Description The MAX9550/MAX9551/MAX9552 operational transcon- ductance amplifiers (OTA) hold the VCOM voltage sta- ble while providing the ability to source and sink a high current quickly (800mA typ) into a capacitive load ...

Page 7

Applications Information Output Load Capacitor The output load capacitor must have a low ESR value (50mΩ or lower) and it must be placed as close as pos- sible to the OUT pin to ensure buffer stability (see Figure 2). Ceramic ...

Page 8

High-Current VCOM Drive Buffers for TFT LCDs TOP VIEW MAX9550 OUT 1 2 GND IN+ 3 THIN SOT23 MAX9551 OUTA 1 INA- 2 INA+ 3 GND 4 µMAX-EP 8 _______________________________________________________________________________________ 5 V N.C. DD IN- IN+ GND 4 IN- OUTA ...

Page 9

For the latest package outline information go to www.maxim-ic.com/packages.) _______________________________________________________________________________________ High-Current VCOM Drive Buffers for TFT LCDs Package Information 9 ...

Page 10

High-Current VCOM Drive Buffers for TFT LCDs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 10 ______________________________________________________________________________________ Package Information (continued) ...

Page 11

For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ High-Current VCOM Drive Buffers Package Information (continued) for TFT LCDs 1 21-0107 ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE, TSSOP, 4 ...

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