LP5891 Series
48 × 16 LED matrix driver with 16-bits PWM dimming and ultra low power
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Features | Outputs and Type | Outputs and Type▲▼ | Utilized IC / Part | Supplied Contents | Current - Output / Channel▲▼ | Voltage - Input▲▼ | Voltage - Input▲▼ |
|---|---|---|---|---|---|---|---|---|
Dimmable | Non-Isolated | 48 ul | LP5891-Q1 | Board(s) | 0.019999999552965164 A | 2.5 V | 5.5 V |
Key Features
• Separated VCCand VR/G/Bpower supplyVCCvoltage range: 2.5 V–5.5 VVR/G/Bvoltage range: 2.5 V–5.5 V48 current source channels from 0.2 mA to 20 mAChannel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)Low knee voltage: 0.26 V (max.) when IOUT= 5 mA3-bits (8 steps) global brightness control8-bits (256 steps) color brightness controlMaximum 16-bits (65536 steps) PWM grayscale control16 scan line switches with 190-mΩ RDS(ON)Ultra-low power consumptionIndependent VCCdown to 2.5 VLowest ICCdown to 3.6 mA with 50-MHz GCLKIntelligent power saving mode with ICCdown to 0.9 mABuilt-in SRAM to support 1–64 multiplexingSingle device to support 48 × 16 LEDs or 16 × 16 RGB pixelsDual devices stackable to support 96 × 32 LEDs or 32 × 32 RGB pixelsThree devices stackable to support 144 × 48 LEDs or 48 × 48 RGB pixelsFour devices stackable to support 192 × 64 LEDs or 64 × 64 RGB pixelsHigh speed and low EMI Continuous Clock Series Interface (CCSI)Only three wires: SCLK / SIN / SOUTExternal 50-MHz (max.) SCLK with rising-edge transmission mechanismInternal frequency multiplier to support high frequency GCLKOptimized performances for LED matrix displaysUpside and downside ghosting removalLow grayscale enhancementLED open, weak-short, short detection and removalLP5891MRRFR supports –55°C to approximately 125°C operating ambient temperatureSeparated VCCand VR/G/Bpower supplyVCCvoltage range: 2.5 V–5.5 VVR/G/Bvoltage range: 2.5 V–5.5 V48 current source channels from 0.2 mA to 20 mAChannel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)Low knee voltage: 0.26 V (max.) when IOUT= 5 mA3-bits (8 steps) global brightness control8-bits (256 steps) color brightness controlMaximum 16-bits (65536 steps) PWM grayscale control16 scan line switches with 190-mΩ RDS(ON)Ultra-low power consumptionIndependent VCCdown to 2.5 VLowest ICCdown to 3.6 mA with 50-MHz GCLKIntelligent power saving mode with ICCdown to 0.9 mABuilt-in SRAM to support 1–64 multiplexingSingle device to support 48 × 16 LEDs or 16 × 16 RGB pixelsDual devices stackable to support 96 × 32 LEDs or 32 × 32 RGB pixelsThree devices stackable to support 144 × 48 LEDs or 48 × 48 RGB pixelsFour devices stackable to support 192 × 64 LEDs or 64 × 64 RGB pixelsHigh speed and low EMI Continuous Clock Series Interface (CCSI)Only three wires: SCLK / SIN / SOUTExternal 50-MHz (max.) SCLK with rising-edge transmission mechanismInternal frequency multiplier to support high frequency GCLKOptimized performances for LED matrix displaysUpside and downside ghosting removalLow grayscale enhancementLED open, weak-short, short detection and removalLP5891MRRFR supports –55°C to approximately 125°C operating ambient temperature
Description
AI
The LP5891 is a highly integrated, common-cathode LED matrix driver with 48 constant current sources and 16 scanning FETs. The LP5891 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 is a highly integrated, common-cathode LED matrix driver with 48 constant current sources and 16 scanning FETs. The LP5891 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.