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MAX25169ATM/VY - Automotive, I2C-Controlled, 6-Channel, 150mA Backlight Driver and 4-Output TFT-LCD Bias with ASIL B Features

General Description

MAX25169ATM/VY is a highly integrated TFT power supply and LED backlight driver IC for automotive TFT-LCD applications. This IC integrates one boost converter, one inverting buck-boost converter, two gate-driver supplies, and a boost/SEPIC controller that can power 1 to 6 strings of LEDs in the display backlight.

Benefits and Features

4-Output TFT-LCD Bias Power

2.65V to 5.5V Input for the TFT-LCD Section

Integrated 420kHz or 2.1MHz Boost and BuckBoost Converters

Flexible Sequencing

Undervoltage Detection on All Outputs

Low-Quiescent-Current Standby Mode

6-Channel, 36V LED Backlight Driver

NGATE Control for External NMOSFET Series Switch

Programmable nMOSFET Current Limit

Up to 150mA Current per Channel

4.5V to 36V Input Voltage Range, 3V Operation after Startup

Integrated Boost/SEPIC Controller (400kHz to 2.2MHz with Synchronization)

Dimming Ratio 16,667:1 at 200Hz

Adaptive Voltage Optimization to Reduce Power Dissipation in LED Current Sinks

Open-String, Shorted-LED, and Short-to-GND Diagnostics

Applications

Automotive Dashboards

Automotive Central Information Displays

Automotive Head-Up Displays

Automotive Navigation Systems

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