LP5864MRSMR

LED Driver IC Overview

The LP5864MRSMR is a Texas Instruments LED matrix driver featuring four independent 18-channel outputs. It integrates boost and buck topologies with an internal charge pump to support adjustable output voltages. The device operates on a 2.7 V to 5.5 V supply, delivering up to 50 mA per channel. It supports I2C control and offers 8-bit analog plus 8/16-bit PWM dimming. Operating temperatures range from -55°C to +125°C in a 32-pin VQFN package.

LED Driver IC Feature Summary

• Integrates boost and buck converters with a charge pump for flexible LED driving
• Supports 8-bit analog and 8/16-bit PWM dimming for precise brightness control
• Features I2C interface for simplified system integration

LED Driver IC Applications

• LED animation displays
• Visual indication systems
• LED matrix panels

LED Driver IC Procurement Notes

Verify the specific suffix 'MRSMR' matches the required temperature grade (-55°C to +125°C) and package type (VQFN-32). Confirm that the I2C address configuration aligns with your system design. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Cross-reference the datasheet revision date to ensure compatibility with existing firmware or hardware designs.

LED Driver IC Selection Notes

Select this component when high-temperature operation up to 125°C is required, distinguishing it from standard commercial variants. Choose the LP5864 over the LP5862 if four separate 18-channel domains are necessary rather than two. Consider the integrated power stage capabilities if external boost/buck components are undesirable. Verify that the 50 mA constant current output meets the specific LED forward current requirements of the target application.

LED Driver IC Part Context

This part belongs to the LP586x family of high-current LED matrix drivers from Texas Instruments. It shares functional similarities with the LP5862 but provides four distinct 18-channel sections instead of two. The MRSMR suffix indicates the extended industrial temperature range and the specific VQFN-32 packaging. It complements other TI lighting solutions by offering integrated power management within a compact form factor.

LED Driver IC Replacement Considerations

The LP5862RSMR serves as a partial substitute if only two 18-channel domains are needed, though it lacks the four-domain capacity. Direct pin-to-pin replacement with other LP586x variants requires verifying temperature ratings and channel counts. No other direct equivalent parts are confirmed in the provided documentation.