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Texas Instruments LP5867EVM Evaluation Module

Texas Instruments LP5867EVM Evaluation Module is designed to evaluate the characteristics and usage of the LP5867 LED matrix driver. The LP5867 LED driver integrates six constant current sinks with seven switching MOSFETs that drive up to 42 LED dots or 14 RGB LED pixels. The LP5867EVM evaluation module is ideal for portable electronics, wearable electronics, and Internet-of-Things (IoT).

Features

  • LED matrix topology:
    • 6 constant current sinks with 7 scan switches for 42 LED dots
    • Configurable for 1 to 7 scan switches
  • 6 constant current sinks with high precision:
    • 0.1mA to 50mA per current sink when VCC ≥ 3.3V
    • Device-to-device error: ±3% when channel current = 50mA
    • Channel-to-channel error: ±3% when channel current = 50mA
    • Phase-shift for balanced transient power
  • Interface options:
    • 1MHz (maximum) I²C interface when IFS = low
    • 12MHz (maximum) SPI when IFS = high LED animation and indication
  • Fully addressable SRAM to minimize data traffic
  • Individual LED dot open/short detection
  • De-ghosting and low brightness compensation
  • Ultra-low power consumption:
    • Shutdown mode: ICC ≤ 1μA when EN = low
    • Standby mode: ICC ≤ 10μA when EN = high and CHIP_EN = 0 (data retained)
    • Active mode: ICC = 4.3mA (typical) when channel current = 5mA
  • Flexible dimming options:
    • Individual ON/OFF control for each LED dot
    • Analog dimming (7-step MC/7-bit CC/8-bit DC)
    • PWM dimming (8/16-bit) with audible-noise-free frequency

Applications

  • LED animation and indication for:
    • Portable electronics
    • Wearable electronics
    • Internet-of-Things (IoTs)
Published: 2024-04-26 | Updated: 2024-05-09