MAX20446ATG/V+

LED Driver IC Overview

The MAX20446ATG/V+ is a six-channel LED backlight driver with an integrated boost controller designed for automotive displays. It accepts a wide input voltage range of 4.5V to 36V and withstands direct automotive load dump voltages up to 52V. Each channel provides an integrated current output capable of sinking up to 130mA. The device operates at a switching frequency of 2.2MHz and supports I2C-controlled PWM and hybrid dimming. It is housed in a 24-pin TQFN-EP package and is qualified to AEC-Q100 standards.

LED Driver IC Feature Summary

• Six independent channels with integrated current outputs for high-brightness LED driving
• Built-in boost controller supporting wide input voltage ranges suitable for automotive environments
• Supports I2C-controlled pulse-width modulation (PWM) and hybrid dimming methods
• Qualified for automotive applications under AEC-Q100 standards

LED Driver IC Applications

• Automotive display backlighting systems
• High-brightness LED arrays in vehicle instrumentation
• Infotainment screen illumination drivers

LED Driver IC Procurement Notes

Verify the specific suffix (V+) against the manufacturer's official documentation to ensure correct temperature grade and packaging configuration. Confirm AEC-Q100 qualification status directly with Analog Devices or authorized distributors, as availability may vary by region. Ensure the selected component matches the required 24-TQFN footprint and thermal pad specifications for proper PCB integration.

LED Driver IC Selection Notes

Select this component when designing automotive display backlights requiring six independent channels with high current sinking capability. It is suitable for applications needing robust input voltage tolerance against automotive transients. Consider the 2.2MHz switching frequency for inductor size optimization. Verify that the control interface requirements align with the available I2C bus capabilities of the host microcontroller.

LED Driver IC Part Context

The MAX20446 belongs to Maxim Integrated’s portfolio of automotive-grade power management ICs. It is part of a family of multi-channel LED drivers designed specifically for the demanding electrical and environmental conditions found in modern vehicles. The device integrates both the driver stages and the boost converter to simplify the bill of materials and reduce board space compared to discrete solutions.

LED Driver IC Replacement Considerations

Consult Analog Devices official substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully if considering competitors.