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LP5891-Q1
  • LP5891-Q1
  • LP5891-Q1

LP5891-Q1

ACTIVE

Automotive 48 x 16 matrix LED driver with 16-bits pulse width modulation dimming

Texas Instruments LP5891-Q1 Product Info

1 April 2026 2

Parameters

Number of channels

16, 48

Topology

Current Sink

Rating

Automotive

Operating temperature range (°C)

-40 to 125

Vin (min) (V)

2.5

Vin (max) (V)

5.5

Vout (min) (V)

2.5

Vout (max) (V)

5.5

Iout (max) (A)

0.96

Iq (typ) (mA)

5.5

Features

LOD, LSD, De-ghosting, Intelligent power-saving mode

Package

VQFN (RRF)-76-81 mm² 9 x 9

Features

  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Separated VCC and VR/G/B power supply
    • VCC voltage range: 2.5 V – 5.5 V
    • VR/G/B voltage range: 2.5 V – 5.5 V
  • 48 current source channels from 0.2 mA to 20 mA
    • Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
    • Low knee voltage: 0.27 V (max.) when IOUT = 5 mA
    • 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 190-mΩ RDS(ON)
  • Ultra-low power consumption
    • Independent VCC down to 2.5 V
    • Lowest ICC down to 3.6 mA with 50-MHz GCLK
    • Intelligent power saving mode with ICC down to 0.9 mA
  • 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 50-MHz (max.) SCLK with 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
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Separated VCC and VR/G/B power supply
    • VCC voltage range: 2.5 V – 5.5 V
    • VR/G/B voltage range: 2.5 V – 5.5 V
  • 48 current source channels from 0.2 mA to 20 mA
    • Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
    • Low knee voltage: 0.27 V (max.) when IOUT = 5 mA
    • 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 190-mΩ RDS(ON)
  • Ultra-low power consumption
    • Independent VCC down to 2.5 V
    • Lowest ICC down to 3.6 mA with 50-MHz GCLK
    • Intelligent power saving mode with ICC down to 0.9 mA
  • 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 50-MHz (max.) SCLK with 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

Description

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

The LP5891-Q1 is a highly integrated common cathode matrix LED display driver with 48 constant current sources and 16 scanning FETs. Besides driving 16 × 16 and 32 × 32 RGB LED pixels as LP5890, three LP5891-Q1 devices are capable of driving 48 × 48 RGB LED pixels and stacking four LP5891-Q1 devices can drive 64 × 64 RGB LED pixels. To achieve low power consumption, the device supports separated power supplies for the red, green, and blue LEDs by its common cathode structure. Furthermore, the operation power of the LP5891-Q1 is significantly reduced by ultra-low operation voltage range (Vcc down to 2.5 V) and ultra-low operation current (Icc down to 3.6 mA).

The LP5891-Q1 implements a high speed rising-edge transmission interface to support high device count daisy-chained and high refresh rate while minimizing electrical-magnetic interference (EMI). The device supports up to 50-MHz SCLK (external) and up to 160-MHz GCLK (internal). Meanwhile, the device integrates enhanced circuits and intelligent algorithms to solve the various display challenges in Narrow Pixel Pitch (NPP) LED display applications and mini and micro-LED products: dim at the first scan line, upper and downside ghosting, non-uniformity in low grayscale, coupling, caterpillar caused by open or short LEDs, which make the LP5891-Q1 a perfect choice in such applications.

The LP5891-Q1 also implements LED open/weak short/short detections and removals during operations and can also report those information out to the accompanying digital processor.

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