MAX1512ETA ,EEPROM-Programmable TFT VCOM CalibratorELECTRICAL CHARACTERISTICS(Circuit of Figure 1, V = 3V, V = 10V, V = 5V, R = 30.1kΩ , T = 0°C to +8 ..
MAX1512ETA+ ,EEPROM-Programmable TFT VCOM CalibratorELECTRICAL CHARACTERISTICS (continued)(Circuit of Figure 1, V = 3V, V = 10V, V = 5V, R = 30.1kΩ , T ..
MAX1512ETA+T ,EEPROM-Programmable TFT VCOM CalibratorFeaturesThe MAX1512 is a programmable VCOM-adjustment♦ 7-Bit Adjustable Sink-Current Outputsolution ..
MAX1513ETP ,2.7 to 5.5 V, TFT-LCD power-supply controllerFeatures♦ 2.7V to 5.5V Input Supply RangeThe MAX1513/MAX1514 provide complete power-sup-ply solutio ..
MAX1513ETP+ ,TFT-LCD Power-Supply ControllersFeatures♦ 2.7V to 5.5V Input Supply RangeThe MAX1513/MAX1514 provide complete power-sup-ply solutio ..
MAX1513ETP+T ,TFT-LCD Power-Supply ControllersELECTRICAL CHARACTERISTICS(Circuit of Figure 1, V = 3V, V = 10V, SDFR = IN, C = 0.22µF, T = 0°C to ..
MAX4162EUK+T ,SOT23, Micropower, Single-Supply, Rail-to-Rail I/O Op Ampsapplications. The singlePART TEMP RANGE MAX4162 is available in 8-pin SO and space-saving PACKAGE M ..
MAX4162EUK-T ,SOT23, Micropower, Single-Supply, Rail-to-Rail I/O Op AmpsFeaturesThe MAX4162/MAX4163/MAX4164 are single/dual/quad, ♦ UCSP Package (MAX4163)micropower operat ..
MAX4163ESA ,SOT23 / Micropower / Single-Supply / Rail-to-Rail I/O Op AmpsFeaturesThe MAX4162/MAX4163/MAX4164 are single/dual/quad,' 5-Pin SOT23 Package (MAX4162)micropower ..
MAX4163ESA ,SOT23 / Micropower / Single-Supply / Rail-to-Rail I/O Op AmpsFeaturesThe MAX4162/MAX4163/MAX4164 are single/dual/quad,' 5-Pin SOT23 Package (MAX4162)micropower ..
MAX4163ESA+ ,SOT23, Micropower, Single-Supply, Rail-to-Rail I/O Op AmpsMAX4162/MAX4163/MAX416419-1195; Rev 3; 1/10UCSP, Micropower, Single-Supply, 10V,Rail-to-Rail I/O Op ..
MAX4163ESA+T ,SOT23, Micropower, Single-Supply, Rail-to-Rail I/O Op AmpsELECTRICAL CHARACTERISTICS: 3V Operation(V = 3V, V = 0V, V = V /2, V = V /2, R connected to V /2, T ..
MAX1512ETA
EEPROM-Programmable TFT VCOM Calibrator
General DescriptionThe MAX1512 is a programmable VCOM-adjustment
solution for thin-film transistor (TFT) liquid-crystal displays
(LCDs). The MAX1512 simplifies the labor-intensive
VCOM-adjustment process and replaces mechanical
potentiometers, which significantly reduces labor costs,
increases reliability, and enables automation.
The MAX1512 attaches to an external resistive voltage-
divider and sinks a programmable current to set the
VCOM voltage level. An internal 7-bit digital-to-analog
converter (DAC) controls the sink current. The DAC is
ratiometric relative to AVDD and is guaranteed to be
monotonic over all operating conditions. This VCOM
calibrator IC includes an EEPROM to store the desired
VCOM voltage level. The EEPROM can be programmed
repeatedly, giving TFT LCD manufacturers the flexibility
to calibrate the display panel as many times as the
manufacturing process requires.
The IC features a single-wire interface between the
LCD panel and the programming circuit. The single-
wire interface delivers both programming power and
DAC-adjustment commands to minimize changes to
panel connectors and production equipment. The
MAX1512 is available in an 8-pin 3mm x 3mm TDFN
package. A complete evaluation kit is available to sim-
plify evaluation and production development.
ApplicationsLCD Panels
Notebook Computers
Monitors
LCD TVs
Features7-Bit Adjustable Sink-Current OutputResistor-Adjustable Full-Scale RangeGuaranteed Monotonic Output Over Operating
RangeSingle-Wire Adjustment and ProgrammingEEPROM Stores VCOM SettingInterface Enable/Disable Control (CE)2.6V to 3.6V Logic Supply-Voltage Operating
Range (VDD)4.5V to 20V Analog Supply-Voltage Range (VAVDD)VDDUVLO Protection8-Pin 3mm x 3mm TDFN (0.8mm max)
MAX1512
EEPROM-Programmable TFT VCOM Calibrator
Pin Configuration
Ordering Information
Typical Operating Circuit
MAX1512
EEPROM-Programmable TFT VCOM Calibrator
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(Circuit of Figure 1, VDD= 3V, VAVDD= 10V, VOUT= 5V, RSET= 30.1kΩ, TA
= 0°C to +85°C, unless otherwise noted. Typical valuesare at TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD, SET, CE to GND...............................................-0.3V to +4V
OUT to GND...........................................................-0.3V to +14V
AVDD to GND.........................................................-0.3V to +24V
CTL to GND............................................................-0.3V to +16V
Continuous Power Dissipation (TA= +70°C)...............................
8-Pin Thin QFN 3mm x 3mm (derate 24.4mW/°C
above +70°C).............................................................1951mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10s).................................+300°C
MAX1512
EEPROM-Programmable TFT VCOM Calibrator
ELECTRICAL CHARACTERISTICS(VDD= 3V, VAVDD= 10V, VOUT= 5V, RSET= 30.1kΩ, TA
= -40°C to +85°C, unless otherwise noted.) (Note 1)
Note 1:Limits are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed through
correlation using standard quality control (SQC) methods.
Note 2:SET external resistor range is verified at DAC full scale.
Note 3:Guaranteed by design. Not production tested.
ELECTRICAL CHARACTERISTICS (continued)(Circuit of Figure 1, VDD= 3V, VAVDD= 10V, VOUT= 5V, RSET= 30.1kΩ, TA
= 0°C to +85°C, unless otherwise noted. Typical valuesare at TA
MAX1512
EEPROM-Programmable TFT VCOM Calibrator
Typical Operating Characteristics(Circuit of Figure 1, VDD= 3V, VAVDD= 10V, VOUT= 5V, RSET= 24.9kΩ, TA= +25°C, DAC half scale, unless otherwise noted.)
MAX1512
EEPROM-Programmable TFT VCOM Calibratorypical Operating Characteristics (continued)(Circuit of Figure 1, VDD= 3V, VAVDD= 10V, VOUT= 5V, RSET= 24.9kΩ, TA= +25°C, DAC half scale, unless otherwise noted.)
MAX1512
EEPROM-Programmable TFT VCOM Calibrator
Detailed DescriptionThe MAX1512 is a solid-state alternative to mechanical
potentiometers used for adjusting the LCD backplane
voltage (VCOM) in TFT LCD displays. The MAX1512
attaches to an external resistive voltage-divider and
sinks a programmable current (IOUT), which sets the
VCOM level (Figure 1). An internal 7-bit DAC controls
the sink current and allows the user to increase or
decrease the VCOM level (Figure 2). The DAC is ratio-
metric relative to AVDD and is monotonic over all oper-
ating conditions. The user can store the DAC setting in
an internal EEPROM. On power-up, the EEPROM pre-
sets the DAC to the last stored setting. The single-wire
interface between the LCD panel and the programming
circuit adjusts the DAC, programs the EEPROM, and
provides programming power.
The resistive voltage-divider and the AVDD supply set
the maximum value of VCOM. The MAX1512 sinks cur-
rent from the voltage-divider to reduce the VCOM level.
The external resistor RSETsets the full-scale sink cur-
rent and the minimum value of VCOM.
