Signage-grade LED driver with shift register control
The MAX6969AUG+ is a 16-output constant-current LED driver from Analog Devices, built around a shift register topology for serial-to-parallel data conversion. Each of the 16 channels sinks up to 55 mA, set by a single external resistor, making it suited for LED matrix signage where per-channel current uniformity matters across the display. The internal switches eliminate the need for external discrete FETs on each channel, reducing BOM count in multiplexed sign panels.
Thermal and package constraints for board integration
At 55 mA per channel with all 16 outputs active, the total package dissipation reaches approximately 880 mW before accounting for supply voltage headroom.
Active lifecycle and compliance posture
It is fully RoHS3 compliant (2011/65/EU + 2015/863), meeting the restricted-substance thresholds for EU-market equipment without exemption claims. No official second-source or pin-compatible cross-reference is listed in the manufacturer's documentation; BOM positions should be qualified against the Analog Devices datasheet for timing and output current accuracy.