LP5866TRKPR

LED Driver IC Overview

The LP5866TRKPR is a high-current LED matrix driver IC from Texas Instruments, housed in a VQFN-40 package. It features 18 constant current sinks and 6 scan switches, supporting up to 108 LED points or 36 RGB LEDs. The device operates on a supply voltage range of 2.7 V to 5.5 V with a maximum output current of 1.8 A per sink. It supports PWM dimming at a switching frequency of 125 kHz and includes full addressable SRAM for data management.

LED Driver IC Feature Summary

• Integrates six MOSFET scan switches and eighteen constant current sinks for driving large LED matrices
• Supports analog and PWM dimming methods with individually configurable brightness levels
• Includes built-in open and short circuit detection for LED fault monitoring
• Features fully addressable SRAM to minimize external data traffic and reduce ghosting

LED Driver IC Applications

• LED animation and status indicators
• Keyboards, mice, and gaming accessories
• Smart home appliances and IoT devices
• Audio mixers and broadcast equipment

LED Driver IC Procurement Notes

Verify the specific suffix TRKPR to confirm the VQFN-40 packaging and tape-and-reel configuration. Ensure the design accommodates the 2.7 V to 5.5 V input range and 1.8 A current capability. Confirm thermal requirements for the operating temperature range of -40°C to +85°C. Cross-reference the datasheet for I2C/SPI interface settings and pinout compatibility before finalizing procurement.

LED Driver IC Selection Notes

Select this component when high-current drive capability is required for dense LED arrays. It is suitable for applications needing precise individual LED control without external multiplexing. Compare against lower-current variants if power consumption is critical. Consider the VQFN-40 footprint constraints during PCB layout. Verify interface speed requirements against the 12 MHz SPI limit.

LED Driver IC Part Context

This part belongs to the LP5866T series of LED matrix drivers designed by Texas Instruments. It is engineered for compact designs requiring high channel density. The series supports flexible mapping of LED points to current sinks. It integrates control logic for seamless dimming and fault detection within a single small form factor.

LED Driver IC Replacement Considerations

LP5866RKPR: Similar functionality but may differ in package type or specific electrical characteristics; verify pinout and current ratings. LP5866DBTR: Alternative package option (TSSOP-38) with similar core features; check thermal performance and footprint differences.