Flexible ConfigurationProgrammable Multiplex Ratio Between 4:1 and 1:1Integrated Column DriversProgrammable Dither for Enhanced ResolutionOptional Individual Programmable DelaysOptional Pseudorandom Spread Spectrum on Each Output24 Row DriversUp to 65mA Peak Output CurrentVery Narrow Minimum Current Pulse for Maximum Dimming RatioOptional Ghosting EliminationExtensive Diagnostics Supporting ASIL BShorted or Open LEDsProgrammable VLED Overvoltage Detection with FlagAdjacent SNK_ to SNK_ Short DetectionShorted SNK_ or SRC_ to GNDISET Out of RangeInternal Clock Out-of-Range DetectionBandgap Reference Out-of-RangeCRC on Internal Memory ContentsUndervoltage/Overvoltage Detection on AllSuppliesThermal Warning/ShutdownFB Output to Control External DC-DC ConverterSPI Interface Optionally with CRC (MAX25505)VSYNC Synchronization Input (ProgrammableActive-High/Low)48-Lead TQFN and TSSOP PackagesAEC-Q100 Grade 1Ordering The MAX25504/MAX25505 are 4 x 24-channel modular matrix drivers. The integrated current outputs can sink up to 65mA LED current each. The source drive pins provide current to the columns of the matrix on a multiplexed basis. Device power comes from an external 3.3V or 5V supply, while the LED current-sink outputs can operate at up to 14V.A feedback output pin (FB) is provided to control an external DC-DC converter so that voltage headroom can be optimized and the overall system power dissipation reduced.The devices are highly flexible due to their programmability using the SPI interface. Among the programmable parameters are the LED current, individual PWM settings, and multiplex ratio.The devices feature a high-speed interface for controlling up to 16 devices in a daisy-chain configuration. In addition, they include multiple diagnostic features to aid in the building of ASIL B systems.The MAX25504/MAX25505 are available in TQFN and TSSOP packages and operate in the -40°C to +125°C temperature range.APPLICATIONSCentral Information DisplaysInstrument ClustersInterior LightingExterior Rear Lighting