LP5867 7 × 6 LED Matrix Driver
with 8-Bit Analog and 8-Bit or 16-Bit PWM Dimming

1 Features

LED matrix topology:
- 6 constant current sinks with 7 scan switches for 42 LED dots
- Configurable for 1 to 7 scan switches
Operating voltage range:
- V_CC/V_LED range: 2.7V to 5.5V
- Logic pins compatible with 1.8V, 3.3V, and 5V
6 constant current sinks with high precision:
- 0.1mA-50mA per current sink when V_CC ≥ 3.3V
- Device-to-device error: ±3% when channel current = 50mA
- Channel-to-channel error: ±3% when channle current = 50mA
- Phase-shift for balanced transient power
Ultra-low power consumption:
- Shutdown mode: I_CC ≤ 1μA when EN = Low
- Standby mode: I_CC ≤ 10μA when EN = High and CHIP_EN = 0 (data retained)
- Active mode: I_CC = 4.2mA (typ.) when channel current = 5mA
Flexible dimming options:
- Individual ON/OFF control for each LED dot
- Analog dimming (current gain control)
  - Global 7-step Maximum Current (MC) setting for all LED dots
  - 3 groups of 7-bit Color Current (CC) RGB setting
  - Individual 8-bit Dot Current (DC) setting for each LED dot
- PWM dimming with audible-noise-free frequency
  - Global 8-bit PWM dimming for all LED dots
  - 3 programmable groups of 8-bit PWM dimming for LED dot arbitrary mapping
  - Individual 8-bit or 16-bit PWM dimming for each LED dot
Full addressable SRAM to minimize data traffic
Individual LED dot open/short detection
De-ghosting and low brightness compensation
Interface options:
- 1MHz (max.) I²C interface when IFS = Low
- 12MHz (max.) SPI interface when IFS = High