MAX7302ATE+T

LED Driver IC Overview

The MAX7302ATE+T is a 9-port general-purpose input/output (GPIO) expander and LED driver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates on a single supply voltage ranging from 1.62 V to 3.6 V, making it suitable for low-voltage portable applications. The device features linear current control with a maximum output current of 25 mA per channel. It communicates via a standard Serial Peripheral Interface (SPI) compatible interface. Packaged in a 16-pin TQFN (Thin Quad Flat No-lead) case, it supports an operating temperature range from -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates nine individually controllable GPIO ports with dedicated LED drive capability
• Provides linear current regulation for consistent LED brightness across voltage variations
• Supports flexible I/O configuration through software-selectable pull-up resistors
• Operates within a wide low-voltage supply range for battery-powered systems

LED Driver IC Applications

• Portable consumer electronics requiring expanded I/O and display control
• Mobile phone keypad and button matrix scanning
• LED indicator status management in embedded systems
• General-purpose input monitoring in industrial control panels

LED Driver IC Procurement Notes

Verify the exact suffix 'ATE+T' to confirm the specific tape-and-reel packaging and lead-free RoHS compliance status. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility and electrical characteristics before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a design requires multiple GPIO lines combined with direct LED driving capabilities without external transistors. It is appropriate for systems needing SPI-based expansion with limited pin availability on the main microcontroller. Consider the 25 mA per-channel limit for load requirements and ensure the system voltage falls within the 1.62 V to 3.6 V operational window.

LED Driver IC Part Context

This part belongs to the MAX73xx series of I/O expanders designed for space-constrained applications. It serves as a bridge between microcontrollers and peripheral devices, reducing board space by integrating both logic expansion and power driving functions into a single small-footprint package.

LED Driver IC Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitutes. Ensure any replacement maintains SPI compatibility, similar pin count, and equivalent current sourcing capabilities.