MAX25169EVKIT#

MAX25169 evaluation kit (EV kit) demonstrates the MAX25069/MAX25169 IC, which is a highly integrated power supply plus LED backlight driver for automotive TFT-LCD applications. The EV kit is a fully assembled and tested surface-mount PCB that provides a complete power-management solution for automotive displays. The EV kit demonstrates one current-mode boost converter with sequencing switch (HVINP–AVDD), one current mode inverting regulator (NAVDD), positive and negative gate-voltage controllers (VGON), and (VGOFF), and a boost converter that powers a six-string LED driver. The EV kit can be configured to operate in a stand-alone mode or an I2C mode.

• 2.65V to 5.5V input range for TFT-LCD power section
• Wide 4.5V to 36V input range for LED driver section
• Selectable switching frequency (2.1MHz or 420KHz)with spread-spectrum option on TFT power section
• 2.2MHz/400KHz resistor-programmable switching frequency with spread-spectrum option
• Demonstrates cycle-by-cycle current limit and thermal-shutdown features
• Demonstrates wide dimming ratio
• Demonstrates hybrid dimming for better EMI and acoustic performance and higher dimming ratio
• Demonstrates fade in/out for smooth brightness transition
• Designed to show thermal foldback function
• I2C programmability, GUI, full sequencing flexibility

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party