MAX25505B

PRODUCTION

4x24 Automotive LED Matrix Driver with ASIL Features

Data Sheet (Rev. 0) Product Selection Table

Part Models: 4
1ku List Price: price unavailable

Viewing:

Overview

Flexible Configuration
- Programmable Multiplex Ratio between 4:1 and1:1
- Integrated Column Drivers
- Programmable Dither for Enhanced Resolution
- Optional Individual Programmable Delays
- Optional Pseudorandom Spread Spectrum onEach Output
24 Row Drivers
- Up to 72mA Peak Output Current
- Very Narrow Minimum Current Pulse forMaximum Dimming Ratio
- Optional Ghosting Elimination
Extensive Diagnostics Supporting ASIL B
- Shorted or Open LEDs
- Programmable V_LED Overvoltage Detection withFlag

Adjacent SNK_ to SNK_ Short Detection
Shorted SNK_ or SRC_ to GND
ISET Out of Range
Internal Clock Out-of-Range Detection
Bandgap Reference Out-of-Range
CRC on Internal Memory Contents
Undervoltage/Overvoltage Detection on AllSupplies
Thermal Warning/Shutdown

FB Output to Control External DC-DC Converter
SPI Interface with CRC
V_SYNC Synchronization Input (ProgrammableActive-High/Low)
48-Lead TQFN and TSSOP Packages
AEC-Q100 Grade 1Ordering

The MAX25505B is a 4x24-channel modular matrix driver. The integrated current outputs can sink up to 72mA 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 device features a high-speed interface for controlling up to 16 devices in a star configuration. In addition, it includes multiple diagnostic features to aid in the building of ASIL B systems.

The MAX25505B 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

Part Models: 4
1ku List Price: price unavailable

Documentation

Data Sheet 1

MAX25505B: 4x24 Automotive LED Matrix Driver with ASIL Features Data Sheet (Rev.0) 07/29/2024

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX25505BATMA/V+	48-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25505BATMA/V+T	48-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25505BAUMA/V+	48-TSSOP_6.1_EP-6.1_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25505BAUMA/V+T	48-TSSOP_6.1_EP-6.1_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Latest Discussions

No discussions on MAX25505B yet. Have something to say?

Start a Discussion on EngineerZone®