MAX16927

Automotive TFT-LCD Power Supply with Boost, Buck, and Cuk Converters, VCOM Buffers, Gate Drivers, and SPI Interface

Complete Automotive TFT-LCD Bias Power Supply

Data Sheet (Rev. 6)
Viewing:

Part Details

  • Operating Voltage Range of 4.5V to 16V (IN3) or 3V to 5.5V (INA)
  • 16V Input, 2A Buck Converter Provides 3.3V Output to TFT Bias-Supply Circuitry and/or Other External Circuitry
  • Flexible Configuration Allows Single High-Power Positive Output (18V/200mA) or Positive Output (18V, 100mA) and Negative Output (-12V/100mA)
  • One Positive Gate-Voltage Regulator
  • One Negative Gate-Voltage Controller
  • DAC-Controlled VCOM Buffers with Offset of 0V to 1V
  • High-Frequency Operation
    • 2.1MHz (Buck Converter)
    • 1.2MHz (Boost and Cuk Converters)
  • Converters Run Out-of-Phase for Lower EMI
  • Externally Controlled Spread-Spectrum Switching for Boost and Cuk
  • Very Flexible Sequencing in Both Stand-Alone and SPI-Controlled Modes
  • True Shutdown Boost Converter
  • Low-Current Shutdown Mode (< 10µA)
  • SPI Control Interface
  • Internal Soft-Start
  • Overtemperature Shutdown
  • -40°C to +105°C Operation
  • AEC-Q100 Qualified
MAX16927
Automotive TFT-LCD Power Supply with Boost, Buck, and Cuk Converters, VCOM Buffers, Gate Drivers, and SPI Interface
MAX16927: Typical Operating Circuit
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Learn More
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

MAX16927EVKIT

Evaluation Kit for the MAX16927

Buy Now View Details

Features and Benefits

  • +6V to +16V Single-Supply Operation
  • +3V to +5.5V Single-Supply Operation
  • Output Voltages
    • +3.3V Output at 2A (VCC3 Buck Converter)
    • +7V Output at 200mA (VSH Boost Converter)
    • -7V Output at 100mA (VSL Cuk Converter)
    • +12V Output at 20mA (VGH Positive Gate-Voltage Linear Regulator)
    • -12V Output at 20mA (VGL Negative Gate-Voltage Linear-Regulator Controller)
  • DAC-Controlled VCOM Buffers
    • -1V to +1V DAC-Adjustable VCOML (±10mA), or
    • +2.5V to +4.5V DAC-Adjustable VCOMH (±100mA)
  • 2.1MHz PWM Switching Frequency (Buck Converter)
  • 1.2MHz PWM Switching Frequency (Boost and Cuk Converters)
  • All Output Voltages are Resistor Adjustable (Except for the Buck Converter)
  • On-Board USB Interface Circuit Generates SPI-Compatible Signals
  • USB-PC Connection and Power (Cable Included)
  • PCB Header for User-Supplied SPI-Compatible Signals
  • Evaluates the MAX16927GTM/V+ in a 48-Pin TQFN (7mm x 7mm x 0.8mm) Package with an Exposed Pad
  • Windows 2000-, Windows XP-, and Windows Vista (32-Bit)-Compatible Software
  • Fully Assembled and Tested

Product Details

The MAX16927 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that provides the voltages and features required for display systems in automotive applications. The EV kit contains a buck converter, boost converter, Cuk converter, positive gate-voltage linear regulator, negative gate-voltage linear-regulator controller, DAC-adjustable positive VCOM buffer, and DAC-adjustable negative VCOM buffer.
The EV kit operates from +6V to +16V or +3V to +5.5V DC supply voltage ranges. The EV kit’s default input range is configured to +6V to +16V. The buck converter (VCC3) is configured for a +3.3V output providing at least 2A. The boost converter (VSH) is configured for a +7V output providing at least 200mA. The Cuk converter (VSL) is configured for a -7V output providing at least 100mA. The positive gate-voltage linear regulator (VGH) is configured for a +12V output providing at least 20mA. The negative gate-voltage linear-regulator controller (VGL) is configured for a -12V output providing at least 20mA. The negative VCOM buffer (VCOML) is DAC adjustable between -1V and +1V and can source or sink 10mA. The positive VCOM buffer (VCOMH) is DAC adjustable between +2.5V and +4.5V and can source or sink 100mA.
The EV kit provides an on-board USB interface circuit to communicate with the SPI interface circuits in the MAX16927 IC.
The EV kit also includes Windows® 2000-, Windows XP®-, and Windows Vista®-compatible software that provides the user interface for exercising the features of the IC. The program is menu driven and offers a graphical user interface (GUI).

Applications

  • Automotive Central Information Displays
  • Automotive Dashboards
  • Automotive Navigation Systems
MAX16927EVKIT
Evaluation Kit for the MAX16927

Latest Discussions

No discussions on max16927 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed