MAX7306ALB+

LED Driver IC Overview

The MAX7306ALB+ is an SMBus/I2C-compatible serial peripheral featuring four level-translating general-purpose input/output (GPIO) ports and LED drivers. It operates on a supply voltage range of 1.62V to 3.6V, while the I/O ports support independent translation levels from 1.4V to 5.5V. The device integrates edge-sensitive transition detection for GPIOs and provides precise current control for LED channels, rated at 25mA per channel. Packaged in a 10-pin Thin-LGA or uDFN format, it facilitates interface between low-voltage microcontrollers and higher-voltage peripherals.

LED Driver IC Feature Summary

• Integrates four I/O ports with automatic voltage level translation capabilities
• Includes dedicated LED driver outputs with precise current regulation
• Supports edge-sensitive transition detection for interrupt generation
• Interfaces via standard SMBus or I2C protocols

LED Driver IC Applications

• Portable electronic devices requiring low-voltage interfacing
• LED backlighting systems with dimming control
• Systems bridging different voltage domains
• Embedded controllers managing external peripherals

LED Driver IC Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm package marking matches the specific suffix. Check for RoHS compliance documentation. Ensure storage conditions meet moisture sensitivity level requirements. Validate revision status against the latest datasheet.

LED Driver IC Selection Notes

Select this component when simultaneous GPIO expansion and LED driving are required within a single package. Consider the voltage translation range if interfacing with mixed-voltage buses. Evaluate the 10-pin footprint constraints against available PCB space. Verify I2C address compatibility with existing system architecture.

LED Driver IC Part Context

Part of the MAX7306/MAX7307 family of serial peripherals. The MAX7306 variant lacks the separate port power supply pin found in the MAX7307, relying instead on the main VCC for I/O operation. This simplifies board design for applications where I/O voltage matches the core logic supply.

LED Driver IC Replacement Considerations

The MAX7307 serves as a functional alternative if independent port power supply is required. Verify pin compatibility and software register mapping before substitution. Ensure the replacement supports the same I2C/SMBbus addressing scheme.