DatasheetsPDF.com

MAX20070B

Maxim Integrated
Part Number MAX20070B
Manufacturer Maxim Integrated
Description Integrated TFT Power Supplies and LED Backlight Drivers
Published Mar 27, 2020
Detailed Description MAX20070/MAX20070B EVALUATION KIT AVAILABLE Integrated TFT Power Supplies and LED Backlight Drivers General Descriptio...
Datasheet PDF File MAX20070B PDF File

MAX20070B
MAX20070B

Overview
MAX20070/MAX20070B EVALUATION KIT AVAILABLE Integrated TFT Power Supplies and LED Backlight Drivers General Description The MAX20070/MAX20070B are highly integrated power supplies and LED backlight drivers for automotive TFT-LCD applications.
The devices integrate one buckboost converter, one boost converter, two gate-driver supplies, and a boost/SEPIC converter that can power one to two strings of LEDs in the display backlight.
The source-driver power supplies consist of a boost converter and an inverting buck-boost converter that can generate voltages up to +15V and -15V.
Both sourcedriver power supplies can deliver up to 100mA.
The positive source-driver supply regulation voltage (VPOS) is set by connecting an external resistor-divider on FBP.
Connecting the FBP pin to ground sets the regulation voltage (VPOS) to +6.
5V.
The negative source-driver supply voltage (VNEG) is always tightly regulated to -VPOS within +50mV.
The source-driver supplies use an input voltage from 2.
7V to 5.
5V to generate the output voltages.
The gate-driver power supplies consist of regulated charge pumps that generate up to +22V and -22V and can deliver up to 3mA each.
The regulation voltage (VGVDD) on the positive charge pump is set by a resistor-divider on FBPG; the regulation voltage (VGVEE) on the negative charge pump is set by a resistor-divider on FBNG.
The ICs feature a dual-string LED driver that operates off a separate input voltage (VBATT) and can power up to two strings of LEDs with 160mA (max) of current per string.
The startup and shutdown sequences for all power domains are controlled using one of the seven preset modes that are selectable through a resistor on SEQ.
The MAX20070/MAX20070B are available in a 32-pin, 5mm x 5mm TQFN package with an exposed pad, and operate over the -40°C to +105°C ambient temperature range.
Applications ●● Automotive Dashboards ●● Automotive Central Information Displays ●● Automotive Head-Up Displays ●● Automotive Navigation Systems Benefits...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)