MAX6956ATL+T

Display Drivers Overview

The MAX6956ATL+T is a compact, serial-interfaced LED display driver and I/O expander manufactured by Analog Devices Inc./Maxim Integrated. It provides up to 28 individually configurable ports that function as constant-current segment drivers, logic outputs, or inputs. The device operates on a 2.5V to 5.5V supply with an industrial temperature range of -40°C to +125°C. Key electrical parameters include a maximum shutdown current of 11µA, 16-step programmable current control for LEDs ranging from 1.5mA to 24mA, and a 400kbps I2C-compatible interface. It is housed in a TQFN-40 package.

Display Drivers Feature Summary

• Configurable multi-function ports supporting constant-current LED driving, push-pull logic output, and Schmitt trigger input modes
• Integrated 16-step digitally controlled constant-current sink capability for precise LED brightness management
• Low-power operation featuring minimal shutdown current consumption for energy-efficient system states

Display Drivers Applications

• Automotive instrument clusters and interior lighting controls
• Industrial controllers and panel meters requiring high-temperature reliability
• Set-top boxes and white goods with alphanumeric display requirements

Display Drivers Procurement Notes

Verify the specific suffix 'ATL' confirms the TQFN-40 package and extended temperature rating during sourcing. Confirm RoHS compliance status via official documentation. Check for obsolescence notices as this component may be subject to limited availability or lifecycle changes. Ensure the ordering part number matches the exact pinout and thermal characteristics required for the target PCB design.

Display Drivers Selection Notes

Select this component when designing systems requiring a high density of configurable I/O within a small footprint. It is suitable for applications needing both LED display driving and general-purpose digital expansion without additional microcontroller pins. Consider the TQFN-40 package constraints for thermal dissipation and board space. Verify that the I2C bus speed and voltage levels align with the host processor's communication interface specifications.

Display Drivers Part Context

This device belongs to the MAX6956 family of LED display drivers and I/O expanders. It shares functional similarities with other Maxim Integrated serial interface drivers but is distinguished by its specific port count and package configuration. The ATL variant specifically denotes the thin quad flat no-lead package optimized for surface-mount assembly in space-constrained electronic designs.

Display Drivers Replacement Considerations

MAX6956AAI+T (SSOP package)

Display Drivers FAQ

What is the maximum operating temperature for the MAX6956ATL+T?

The device supports an extended industrial temperature range with a maximum operating temperature of +125°C.

How many current steps are available for LED brightness control?

The driver provides 16 individually programmable current steps for each LED port, allowing for fine-grained dimming control.