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Texas Instruments LP5891/LP5891-Q1 48x16 LED Matrix Driver

Texas Instruments LP5891/LP5891-Q1 48x16 LED Matrix Driver is a highly integrated, common-cathode LED matrix driver with 48 constant current sources and 16 scanning FETs. The device implements a high-speed rising-edge transmission interface to support a high device count daisy-chained while minimizing electrical-magnetic interference (EMI) and internal GCLK rate ranges from 40MHz to 160MHz. The  LP5891/LP5891-Q1 implements LED open/weak-short/short detections and removals during operations. The Texas Instruments LP5891-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Separated VCC and VR/G/B power supply
    • 2.5V to 5.5V VCC voltage range
    • 2.5V to 5.5V VR/G/B voltage range
  • 48 current source channels from 0.2mA to 20mA
    • Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
    • Low knee voltage (0.26V (max.) when IOUT = 5mA)
    • 3-bits (8 steps) global brightness control
    • 8-bits (256 steps) color brightness control
    • Maximum 16-bits (65536 steps) PWM grayscale control
  • 16 scan line switches with 190mΩ RDS(ON)
  • Ultra-low power consumption
    • Independent VCC down to 2.5V
    • Lowest ICC down to 3.6mA with 50MHz GCLK
    • Intelligent power saving mode with ICC down to 0.9mA
  • Built-in SRAM to support 1–64 multiplexing
    • Single device to support 48 × 16 LEDs or 16 × 16 RGB pixels
    • Dual devices stackable to support 96 × 32 LEDs or 32 × 32 RGB pixels
    • Three devices stackable to support 144 × 48 LEDs or 48 × 48 RGB pixels
    • Four devices stackable to support 192 × 64 LEDs or 64 × 64 RGB pixels
  • High speed and low EMI Continuous Clock Series Interface (CCSI)
    • Only three wires: SCLK / SIN / SOUT
    • External 50MHz (max.) SCLK with a rising-edge transmission mechanism
    • Internal frequency multiplier to support high-frequency GCLK
  • Optimized performances for LED matrix displays
    • Upside and downside ghosting removal
    • Low grayscale enhancement
    • LED open, weak-short, short detection and removal
  • LP5891MRRFR supports –55°C to approximately 125°C operating ambient temperature

Applications

  • Mini- / micro-LED matrix products
  • Gaming keyboard RGB LED backlighting
  • Audio mixer, DJ equipment, and broadcast
  • LED luminous panel and Local dimming backlight

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments LP5891/LP5891-Q1 48x16 LED Matrix Driver

Related Development Tool

Texas Instruments LP5891EVM Evaluation Module

Designed to evaluate the characteristics, operation, and usage of matrix LED display driver LP5891.

Learn Moretungkol sa Texas Instruments LP5891EVM Evaluation Module View Productskaugnay ng Texas Instruments LP5891EVM Evaluation Module

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Learn Moretungkol sa Texas Instruments LP5899/LP5899-Q1 LED Drivers View Productskaugnay ng Texas Instruments LP5899/LP5899-Q1 LED Drivers
Inilathala: 2022-10-05 | Na-update: 2025-01-13