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LP5891

現行

具有 16 位元 PWM 調光和超低功耗的 48x16 LED 矩陣驅動器

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產品規格表

LP5891

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 48 LED current per channel (mA) 20 LED configuration Matrix Program memory Yes Topology Linear Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.96 Features De-ghosting, Intelligent power-saving mode, LOD, LSD Iq (typ) (mA) 5.5 Shutdown current (ISD) (typ) (µA) 900 Operating temperature range (°C) -55 to 125 Rating Catalog
Number of channels 48 LED current per channel (mA) 20 LED configuration Matrix Program memory Yes Topology Linear Vin (min) (V) 2.5 Vin (max) (V) 5.5 Iout (max) (A) 0.96 Features De-ghosting, Intelligent power-saving mode, LOD, LSD Iq (typ) (mA) 5.5 Shutdown current (ISD) (typ) (µA) 900 Operating temperature range (°C) -55 to 125 Rating Catalog
NFBGA (ZXL) 96 36 mm² 6 x 6 VQFN (RRF) 76 81 mm² 9 x 9
  • 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: 0.26 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
  • LP5891MRRFR supports –55°C to approximately 125°C operating ambient temperature
  • 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: 0.26 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
  • LP5891MRRFR supports –55°C to approximately 125°C operating ambient temperature

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.
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類型 標題 日期
* Data sheet LP5891 48 Current Sources, 64 Scans, Common Cathode LED Matrix Driver datasheet (Rev. A) PDF | HTML 2022年 5月 5日
Application note Example of LED Display Screen Design Requirements Based on TLC6983 PDF | HTML 2023年 7月 31日
EVM User's guide LP5891 48x16 Common Cathode Matrix LED Display Driver Evaluation Module PDF | HTML 2022年 11月 30日
Certificate LP5891EVM EU RoHS Declaration of Conformity (DoC) 2022年 9月 20日

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開發板

LP5891EVM — 適用 48 × 16 共陰極矩陣 LED 顯示驅動器的 LP5891 評估模組

LP5891 評估模組 (EVM) 用於評估矩陣 LED 顯示驅動器 LP5891 的特性、運作及使用狀況。LP5891 是一款配備 48 個定電流來源及 16 個掃描 FET 的高度整合共陰極矩陣 LED 顯示驅動器。

使用指南: PDF | HTML
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計算工具

SLDR007 — LP5891 Registers Map Generator

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LP5891 — 具有 16 位元 PWM 調光和超低功耗的 48x16 LED 矩陣驅動器
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NFBGA (ZXL) 96 Ultra Librarian
VQFN (RRF) 76 Ultra Librarian
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