MAX25511ATGA/V+

LED Driver IC Overview

The MAX25511ATGA/V+ is a highly integrated, four-channel LED backlight driver featuring an internal boost converter. It operates with a supply voltage range of 4.5 V minimum and supports switching frequencies between 400 kHz and 2.2 MHz. The device delivers up to 120 mA per channel with adjustable output voltage. Packaged in a 24-TQFN (4x4 mm) format, it supports both analog and PWM dimming methods for precise brightness control.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost converter to drive multiple LED channels from low-voltage sources.
• Supports dual dimming modes including analog current control and pulse-width modulation for flexible interface compatibility.

LED Driver IC Applications

• Mobile phone LCD backlight systems
• Portable media player display illumination
• Smartphone camera flash lighting

LED Driver IC Procurement Notes

Verify the specific suffix 'V+' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the package marking matches the 24-TQFN specification. Ensure the operating environment stays within the specified temperature range for the 'A' grade variant. Cross-reference the datasheet revision date to ensure design compatibility with latest electrical characteristics.

LED Driver IC Selection Notes

Select this component when designing systems requiring four independent LED channels driven by a single boost regulator. It is suitable for applications needing compact solutions due to the small TQFN footprint. Consider the 400 kHz to 2.2 MHz frequency range for inductor size optimization. Verify that the required dimming method aligns with either analog or PWM inputs provided by the host controller.

LED Driver IC Part Context

This part belongs to the MAX25510/MAX25511 series of low-voltage LED drivers. It shares architectural similarities with the MAX25510 but offers four output channels compared to fewer alternatives. The series is designed specifically for portable electronics where space and power efficiency are critical constraints for display backlighting applications.

LED Driver IC Replacement Considerations

Check for MAX25510 variants if fewer channels are sufficient. Verify pin-to-pin compatibility with other Maxim Integrated LED drivers before substitution. Ensure the replacement supports the same 24-TQFN package and thermal requirements.