Texas Instruments

18-channel high-current RGB LED driver with 8-bit analog and 8-bit or 16-bit PWM dimming 32-VQFN -40 to 85

Description for the LP5861T

The LP5861T is a high-current and high-performance LED matrix driver. The device integrates 18 constant current sinks with N (N = 6/8/11) switching MOSFETs to support N × 18 LED dots or N × 6 RGB LEDs. The LP5861T is the direct driving version to support 18 LED dots or 6 RGB LEDs.

Features for the LP5861T

  • Operating voltage range:
    • V CC/V LED range: 2.7 V to 5.5 V
    • Logic pins compatible with 1.8 V, 3.3 V, and 5 V
  • 18 high current and precision constant current sinks:
    • 125-mA per current sink when V CC ≥ 3.3 V
    • Device-to-device error: ±5%
    • Channel-to-channel error: ±5%
    • Phase-shift for balanced transient power
  • Ultra-low power consumption:
    • Shutdown mode: I CC ≤ 2 µA when EN = Low
    • Standby mode: I CC ≤ 10 µA when EN = High and CHIP_EN = 0 (data retained)
    • Active mode: I CC = 5 mA (typical) when channel current = 12.5 mA
  • Flexible dimming options:
    • Individual ON/OFF control for each LED dot
    • Analog dimming (current gain control)
      • Global 3-bit Maximum Current (MC) setting for all LED dots
      • 3 groups of 7-bit Color Current (CC) setting for red, green, and blue
      • 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 and short detection
  • Deghosting and low brightness compensation
  • Interface options:
    • 1-MHz (max.) I 2C interface when IFS = Low
    • 12-MHz (max.) SPI interface when IFS = High

$2.33
Distributor SKU Stock MOQ 1 10 50 100 1000 10000 Purchase
Texas Instruments PLP5861TRSMR 1 $2.33 $2.33 $2.33 $2.04 $1.15 $1.15 Buy

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Technical Specifications

Lead Free Status See ti.com
ROHS Compliance Not Compliant
Approx. price(US$) 1.152 | 1ku
Features Analog/PWM mixed dimming,Constant current,Enable/Shutdown,LED Open Detection,LED Short Detection,SPI/I2C,Thermal shutdown
Iout(max)(A) 2.25
Iq(typ)(mA) 4.3
LED configuration Matrix
LED current per channel(mA) 120
Number of channels 18
Operating temperature range(C) -40
Package area(mm^2) 16
Package size (L x W)(mm) 4 x 4
Package type VQFN
Pin count 32.0
Program memory Yes
Rating Catalog
Shutdown current (ISD)(typ)(A) 1
TI.com inventory 500
Topology Linear
Vin(max)(V) 5.5
Vin(min)(V) 2.7