MAX25503

RECOMMENDED FOR NEW DESIGNS

MAX25503

4 x 24 Automotive LED Matrix Driver

RECOMMENDED FOR NEW DESIGNS

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Part Models 4

1ku List Price Starting From $3.10

Features

Flexible Configuration
- Programmable Multiplex Ratio between 4:1 and1:1
- ntegrated Column Drivers
- Programmable Dither for Enhanced Resolution
- Optional Individual Programmable Delays
- Optional Pseudorandom Spread Spectrum onEach Output
24 Row Drivers
- Up to 65mA Peak Output Current
- Very Narrow Minimum Current Pulse forMaximum Dimming Ratio
- Optional Ghosting Elimination

Extensive Diagnostics
- Shorted or Open LEDs
- Programmable V_LED Overvoltage Detection withFlag
- Shorted SNK_ or SRC_ to GND
- ISET out of Range
- Thermal Warning/Shutdown
FB Output to Control External DC-DC Converter
High-Speed SPI Interface
V_SYNC Synchronization Input (Programmable ActiveHigh/Low)
•48-Lead TQFN and TSSOP Packages
AEC-Q100 Grade 1

Additional Details

The MAX25503 is a 4 x 24-channel modular matrix driver. 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 device is highly flexible due to its programmability using the SPI interface. Among the programmable parameters are the LED current, individual PWM settings, and multiplex ratio.

The high-speed interface can be used to control up to 16 devices.

The MAX25503 is available in TQFN and TSSOP packages and operates in the -40°C to +125°C temperature range.

APPLICATIONS

Central Information Displays
Instrument Clusters
Interior Lighting
Exterior Rear Lighting

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.