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LED 顯示驅動器

TLC6984

現行

48 個電流來源、64 個掃描、共陰極矩陣 LED 顯示驅動器

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產品規格表

TLC6984

現行
產品規格表 立即訂購

產品詳細資料

Features Dot Correction, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, Matrix Analog dimming steps 2048 Data transfer rate (typ) (MHz) 25 Ch to ch accuracy (typ) (±%) 0.5 Rating Catalog Operating temperature range (°C) -40 to 85
Features Dot Correction, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, Matrix Analog dimming steps 2048 Data transfer rate (typ) (MHz) 25 Ch to ch accuracy (typ) (±%) 0.5 Rating Catalog Operating temperature range (°C) -40 to 85
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 0.9mA
  • Built-in SRAM to support 1 – 64 multiplexing
    • Single device with 16 multiplexing to support 48 × 16 LEDs or 16 × 16 RGB pixels
    • Dual devices stackable with 32 multiplexing to support 96 × 32 LEDs or 32 × 32 RGB pixels
    • Three devices stackable with 48 multiplexing to support 144 × 48 LEDs or 48 × 48 RGB pixels
    • Four devices stackable with 64 multiplexing 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 25-MHz (max.) SCLK with dual-edge transmission mechanism (internal 50 MHz)
    • Internal frequency multiplier to support high GCLK frequency
  • Optimized display performance
    • Programmable scan line sequence
    • Upside and downside ghosting removal
    • Low grayscale enhancement
    • LED open, short, and weak short detection and removal
  • 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 0.9mA
  • Built-in SRAM to support 1 – 64 multiplexing
    • Single device with 16 multiplexing to support 48 × 16 LEDs or 16 × 16 RGB pixels
    • Dual devices stackable with 32 multiplexing to support 96 × 32 LEDs or 32 × 32 RGB pixels
    • Three devices stackable with 48 multiplexing to support 144 × 48 LEDs or 48 × 48 RGB pixels
    • Four devices stackable with 64 multiplexing 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 25-MHz (max.) SCLK with dual-edge transmission mechanism (internal 50 MHz)
    • Internal frequency multiplier to support high GCLK frequency
  • Optimized display performance
    • Programmable scan line sequence
    • Upside and downside ghosting removal
    • Low grayscale enhancement
    • LED open, short, and weak short detection and removal

With the pixel density getting higher in narrow pixel pitch LED display or mini and micro-LED products, there are urgent demands for LED drivers to address those critical challenges. These challenges include ultra high integration to meet the strict board space limitation, ultra low power to minimize the system level power dissipation, new interface to enable high data refresh rate with low EMI impact, and excellent display performance to serve the growing needs of higher display quality.

The TLC6984 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 TLC6983, three TLC6984s are capable of driving 48 × 48 RGB LED pixels and stacking four TLC6984s 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 TLC6984 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 TLC6984 implements a high-speed, dual-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 25-MHz SCLK (external) and 40-MHz to 160-MHz GCLK (internal, typical values) with different GCLK multiplier modes and frequencies. 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. These challenges include dim at the first scan line, upper and downside ghosting, non-uniformity in low grayscale, coupling, and caterpillar caused by open or short LEDs, which make the TLC6984 a perfect choice in such applications.

The TLC6984 also implements LED open, weak-short, short detections and removals during operations and can also report this information out to the accompanying digital processor.

With the pixel density getting higher in narrow pixel pitch LED display or mini and micro-LED products, there are urgent demands for LED drivers to address those critical challenges. These challenges include ultra high integration to meet the strict board space limitation, ultra low power to minimize the system level power dissipation, new interface to enable high data refresh rate with low EMI impact, and excellent display performance to serve the growing needs of higher display quality.

The TLC6984 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 TLC6983, three TLC6984s are capable of driving 48 × 48 RGB LED pixels and stacking four TLC6984s 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 TLC6984 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 TLC6984 implements a high-speed, dual-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 25-MHz SCLK (external) and 40-MHz to 160-MHz GCLK (internal, typical values) with different GCLK multiplier modes and frequencies. 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. These challenges include dim at the first scan line, upper and downside ghosting, non-uniformity in low grayscale, coupling, and caterpillar caused by open or short LEDs, which make the TLC6984 a perfect choice in such applications.

The TLC6984 also implements LED open, weak-short, short detections and removals during operations and can also report this information out to the accompanying digital processor.
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類型 標題 日期
* Data sheet TLC6984 48 Current Sources, 64 Scans, Common Cathode Matrix LED Display Driver datasheet (Rev. D) PDF | HTML 2022年 7月 14日
User guide LP589x(-Q1)/TLC698x Sample Code User's Guide (Rev. A) PDF | HTML 2024年 9月 6日
Application note Example of LED Display Screen Design Requirements Based on TLC6983 PDF | HTML 2023年 7月 31日
Certificate TLC6984EVM EU RoHS Declaration of Conformity (DoC) 2021年 11月 22日

設計與開發

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開發板

TLC6984EVM — TLC6984 評估模組 48 × 16 共陰極矩陣 LED 顯示驅動器

TLC6984 評估模組可做為工程展示與評估的參考。此使用指南中包含設定說明、電路圖、印刷電路板 (PCB) 配置和物料清單 (BOM)。

使用指南: PDF | HTML
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應用軟體及架構

TLC6984EVM-F280039C-SW — TLC6984 reference code based on TMS320F280039C (LAUNCHXL-F280039C)

This reference code showcases the ability of the TMS320F280039C device to communicate with the TLC6984 LED driver. The code configures the MCU using CLB to drive the LEDs on the EVM.
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產品
LED 顯示驅動器
  • TLC6984 — 48 個電流來源、64 個掃描、共陰極矩陣 LED 顯示驅動器
硬體開發
開發板
  • TLC6984EVM — TLC6984 評估模組 48 × 16 共陰極矩陣 LED 顯示驅動器
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計算工具

SLVRBL8 — TLC6984 Registers Map Generator

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產品
LED 顯示驅動器
  • TLC6984 — 48 個電流來源、64 個掃描、共陰極矩陣 LED 顯示驅動器
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NFBGA (ZXL) 96 Ultra Librarian
VQFN (RRF) 76 Ultra Librarian
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