MAX25503AUMA/V+T

LED Driver IC Overview

The MAX25503AUMA/V+T is a modular matrix LED backlight driver IC from Analog Devices. It integrates four independent channels, each capable of driving up to 24 LEDs in series. Each channel provides a constant current sink with a maximum output of 65mA. The device supports PWM dimming via an SPI interface for precise control. It operates within a supply voltage range of 2.7V to 5.5V and is housed in a 48-pin LFCSP package.

LED Driver IC Feature Summary

• Modular architecture supporting 4x24 channel configurations for complex LED matrices
• Integrated linear current sinks delivering up to 65mA per channel
• Serial Peripheral Interface (SPI) control for programmable PWM dimming

LED Driver IC Applications

• LCD panel backlighting systems
• Modular LED display modules
• Portable electronic device displays

LED Driver IC Procurement Notes

Verify the specific suffix 'V+' indicates RoHS compliance and lead-free status as per the manufacturer's datasheet. Confirm the 'MA' suffix corresponds to the tray packaging format if required by assembly processes. Ensure the operating temperature range aligns with system thermal design requirements before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing high-density LED backlights requiring individual channel current regulation. The integrated SPI interface simplifies control logic compared to parallel interfaces. Verify that the total LED forward voltage does not exceed the driver's compliance voltage limits under all operating conditions.

LED Driver IC Part Context

This part belongs to the MAX25503 series of LED lighting drivers designed for portable applications. It complements other Maxim Integrated PMIC solutions by providing dedicated high-current sinking capabilities for display subsystems. The series focuses on minimizing board space through integrated multiplexing and drive circuits.

LED Driver IC Replacement Considerations

Check for direct pin-compatible alternatives within the MAX25503 family, such as variants with different current ratings or packaging options. Verify functional equivalence regarding SPI command sets and current sink characteristics before substituting.