MAX20067

PRODUCTION

Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface

Industry's First Integrated Power Solution for TFT-LCD with Synchronous Boost, Gate-Shading and I2C

Data Sheet (Rev. 2) Product Selection Table
Part Models
2
1ku List Price
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Part Details

  • Versatile TFT Display Power Section
    • IIntegrated Synchronous Boost Converter with Output Voltages Up to 18V and High-power (MAX20067) or Lower-power (MAX20067B) Options
    • Integrated Charge-Pump Drivers for the VGON (+36V, max) and VGOFF (-24V, min) Outputs
  • Low EMI Operation
    • Programmable Switching Frequencies of 440kHz or 2.2MHz
    • Programmable Spread Spectrum
  • Full Sequencing Flexibility Through I2C, Along with Preset Sequences Using SEQ Pin
  • Extended Diagnostics Using I2C Interface
    • Undervoltage/Overvoltage on HVINP, VGON, and VGOFF
    • Overcurrent on AVDD
    • Temperature Warning
  • Built-In Gate-Shading Circuit Controlled by CTL Input
  • 8-Bit DAC-Controlled VCOM Buffer
  • Robust
    • -40°C to +105°C Operating Temperature Range
    • Internal Temperature Shutdown
    • AEC-Q100 Qualified
  • Compact 32-Pin (5mm × 5mm) TQFN Package
MAX20067
Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface
MAX20067/MAX20067B Simplified Block Diagram MAX20067/MAX20067B Pin Configuration
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Documentation

Data Sheet 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
LCD/CCD/OLED Bias 1
MAX20067B
PRODUCTION Automotive 3-Channel Display Bias IC with VCOM Buffer, Level Shifter, and I2C Interface
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Tools & Simulations

Software Development 1

IBIS Model 1

Evaluation Kits

MAX20067EVKIT

Evaluation Kit for the MAX20067/MAX20067B

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Features and Benefits

  • 2.7V to 5.5V Input Range
  • Default Output Voltage
    • 12V Output at 200mA, (Boost Converter)
    • 16V Output at 10mA (Positive-Gate Voltage Regulator)
    • -6V Output at 3mA (Negative-Gate Voltage Regulator)
    • 6V Output at 130mA (VCOM Buffer)
  • Selectable Switching Frequency (2.2MHz or 400kHz) with Spread-Spectrum Option
  • Double-Stage Positive- and Negative-Regulated Charge Pumps
  • Gate Shading Enabled
  • Full Sequencing Flexibility
  • I2C Programmability
  • Dedicated GUI
  • C Driver Available
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20067 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages and features required for automotive thin-film transistor (TFT), liquid-crystal display (LCD) applications. The EV kit includes a synchronous boost converter, double-stage positive charge pump, double-stage negative charge pump, VCOM buffer, and gate-shading push-pull switch. The EV kit can operate from 2.7V to 5.5V input voltages and is optimized for automotive TFT-LCD applications. The EV kit can be configured to operate in stand-alone mode or in I2C mode. The boost converter is configured for a 12V output that provides at least 200mA. The positive-gate voltage regulator provides 16V output and the negative-gate voltage regulator provides -6V. The VCOM buffer provides an I2C-adjustable output voltage initially biased at 6V.

The EV kit provides an I2C interface that can operate in conjunction with the MINIQUSB+ adapter board or a third-party I2C master, such as a general-purpose microcontroller. The EV kit also includes Windows®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC. The EV system includes both the EV kit and the MINIQUSB+ adapter board.

Applications

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters

MAX20067EVSYS

Evaluation Kit for the MAX20067/MAX20067B

Buy Now View Details

Features and Benefits

  • 2.7V to 5.5V Input Range
  • Default Output Voltage
    • 12V Output at 200mA, (Boost Converter)
    • 16V Output at 10mA (Positive-Gate Voltage Regulator)
    • -6V Output at 3mA (Negative-Gate Voltage Regulator)
    • 6V Output at 130mA (VCOM Buffer)
  • Selectable Switching Frequency (2.2MHz or 400kHz) with Spread-Spectrum Option
  • Double-Stage Positive- and Negative-Regulated Charge Pumps
  • Gate Shading Enabled
  • Full Sequencing Flexibility
  • I2C Programmability
  • Dedicated GUI
  • C Driver Available
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20067 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages and features required for automotive thin-film transistor (TFT), liquid-crystal display (LCD) applications. The EV kit includes a synchronous boost converter, double-stage positive charge pump, double-stage negative charge pump, VCOM buffer, and gate-shading push-pull switch. The EV kit can operate from 2.7V to 5.5V input voltages and is optimized for automotive TFT-LCD applications. The EV kit can be configured to operate in stand-alone mode or in I2C mode. The boost converter is configured for a 12V output that provides at least 200mA. The positive-gate voltage regulator provides 16V output and the negative-gate voltage regulator provides -6V. The VCOM buffer provides an I2C-adjustable output voltage initially biased at 6V.

The EV kit provides an I2C interface that can operate in conjunction with the MINIQUSB+ adapter board or a third-party I2C master, such as a general-purpose microcontroller. The EV kit also includes Windows®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC. The EV system includes both the EV kit and the MINIQUSB+ adapter board.

Applications

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters
MAX20067EVKIT
Evaluation Kit for the MAX20067/MAX20067B
MAX20067EVSYS
Evaluation Kit for the MAX20067/MAX20067B

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