LP5864RSMR

LED Driver IC Overview

The LP5864RSMR is an LED lighting driver IC from Texas Instruments, designed for matrix applications. It features a topology supporting Boost and Buck configurations with an adjustable output voltage. The device provides 18 constant current sinks and 4 scan switches, enabling control of up to 72 LED dots. It operates on a supply voltage range of 2.7 V to 5.5 V, with a maximum power consumption of 6 mA. The unit supports I2C control and includes an integrated charge pump. It is housed in a 32-pin VQFN package (RSM) and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates 18 constant current sinks and configurable scan switches for efficient LED matrix driving
• Supports mixed dimming methods including 8-bit analog and 8-/16-bit PWM control
• Features I2C interface for simplified system control and configuration

LED Driver IC Applications

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

LED Driver IC Procurement Notes

Verify the specific suffix RSM to confirm the VQFN-32 package type and tape-and-reel delivery format. Ensure compatibility with the required operating voltage range of 2.7 V to 5.5 V. Confirm that the design accounts for the thermal pad requirements associated with the RSM package for adequate heat dissipation during operation.

LED Driver IC Selection Notes

Select this component when a high-density LED matrix solution with mixed dimming capabilities is required. It is suitable for designs needing independent control of multiple LED rows and columns via I2C. Consider the 50 mA sink current capability and the integrated charge pump for driving higher voltage LED strings without external boost components.

LED Driver IC Part Context

This part belongs to the LP586x series of LED drivers from Texas Instruments. These devices are engineered for compact LED matrix applications requiring precise current regulation and flexible dimming options. The series typically integrates power switches and control logic to minimize external component count.

LED Driver IC Replacement Considerations

The LP5862RSMR is a related variant offering 18 outputs but lacks the four scan switch architecture of the LP5864RSMR. Verify pinout and functional compatibility before substitution.