LED driver with 4-wire serial control
The MAX6957AAI+ is a LED display driver IC from Analog Devices that drives 7-segment, 16-segment, or 20-segment displays through a 4-wire serial interface (SPI-compatible). Supply current is 180 µA typical — low enough that the driver can remain powered in a battery-backed status panel without draining the coin cell during sleep.
Industrial temperature range and package
Housed in a 28-SSOP package (0.209-inch body width, 5.30 mm), it is a standard fine-pitch surface-mount part that reflows on a standard lead-free profile without special handling.
Active lifecycle and compliance
Because it is an active catalog part from a major supplier, there is no single-source risk: the same function is available through multiple distribution channels, and a second-source cross-reference is not needed for BOM hedging.