Maxim Integrated MAX1517E TFT-LCD Power Supply with VCOM Amplifier

The MAX1517E from Maxim Integrated is a highly integrated power supply specifically designed for thin-film transistor liquid-crystal display (TFT-LCD) applications. It incorporates a step-up DC-DC converter, two linear regulators, a high-performance operational amplifier for VCOM adjustment, and a logic-controlled high-voltage switch, all of which are optimized to provide a reliable and efficient power solution for LCD panels used in laptops, monitors, and other advanced display devices.

Key Features

• High-Efficiency Step-Up DC-DC Converter: The integrated step-up converter is capable of driving the source and gate power supply rails for TFT-LCDs, ensuring a stable and efficient power delivery for the display.
• Dual Linear Regulators: The MAX1517E includes two linear regulators that provide the necessary voltages for the TFT-LCD panel's system logic and the integrated gate-on array (GOA) circuits.
• Integrated VCOM Amplifier: A high-performance operational amplifier is included for VCOM calibration, which is essential for maintaining display quality and reducing visual artifacts in LCD panels.
• High-Voltage Switch: A logic-controlled high-voltage switch is built into the device, enabling easy power sequencing and control for the LCD panel.
• Low Electromagnetic Interference (EMI): The device features a spread-spectrum frequency modulation option, minimizing EMI and making it suitable for sensitive applications.
• Thermal Protection: The MAX1517E is equipped with thermal shutdown protection to prevent damage from overheating, enhancing the longevity and reliability of the device.

Applications

The MAX1517E is ideal for powering TFT-LCD panels in a variety of applications, including:

• Notebook computers
• Portable monitors
• Industrial displays
• Car navigation systems
• Portable televisions

Maxim Integrated's MAX1517E is a comprehensive power management solution that simplifies the design of TFT-LCD power supplies by integrating multiple functions into a single package. Its efficiency, performance, and low EMI characteristics make it a top choice for designers looking to create robust and high-quality LCD display systems.