首頁 電源管理 LED 驅動器 RGB LED 驅動器
首頁
電源管理
LED 驅動器
RGB LED 驅動器

TLC5955

現行

具有點修正、亮度控制、斷路/短路偵測功能的 48 通道、16 位元 PWM LED 驅動器

立即訂購
產品規格表

TLC5955

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) 31.9 LED configuration Parallel, Series Topology Linear Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 1.531 Features Analog/PWM mixed dimming, Constant current, Current control, PWM control, Serial interface Iq (typ) (mA) 15 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 48 LED current per channel (mA) 31.9 LED configuration Parallel, Series Topology Linear Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 1.531 Features Analog/PWM mixed dimming, Constant current, Current control, PWM control, Serial interface Iq (typ) (mA) 15 Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (DCA) 56 113.4 mm² 14 x 8.1 VQFN (RTQ) 56 64 mm² 8 x 8
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Maximum MC, DC, and BC Data:
    • 23.9 mA (VCC ≤ 3.6 V, MC = 5)
    • 31.9 mA (VCC > 3.6 V, MC = 7)
  • Grayscale (GS) Control:
    • 16-Bit (65,536 Steps) with Enhanced Spectrum or Conventional PWM
  • Maximum Current (MC) Control:
    • 3 Bits (8 Steps) with a 3-mA to 30-mA Range
    • 3 MC Sets for Each Color Group
  • Dot Correction (DC) Control:
    • 7 Bits (128 Steps) with a 26.2% to 100% Range
  • Global Brightness Control (BC):
    • 7 Bits (128 Steps) with a 10% to 100% Range
    • 3 BC Sets for Each Color Group
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±2% (typ), ±5% (max)
    • Device-to-Device: ±2% (typ), ±4% (max)
  • Data Transfer Rate: 25 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat
  • Display Timing Reset
  • Auto Data Refresh (GS and DC Only)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • UVLO Sets Default Data
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Maximum MC, DC, and BC Data:
    • 23.9 mA (VCC ≤ 3.6 V, MC = 5)
    • 31.9 mA (VCC > 3.6 V, MC = 7)
  • Grayscale (GS) Control:
    • 16-Bit (65,536 Steps) with Enhanced Spectrum or Conventional PWM
  • Maximum Current (MC) Control:
    • 3 Bits (8 Steps) with a 3-mA to 30-mA Range
    • 3 MC Sets for Each Color Group
  • Dot Correction (DC) Control:
    • 7 Bits (128 Steps) with a 26.2% to 100% Range
  • Global Brightness Control (BC):
    • 7 Bits (128 Steps) with a 10% to 100% Range
    • 3 BC Sets for Each Color Group
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±2% (typ), ±5% (max)
    • Device-to-Device: ±2% (typ), ±4% (max)
  • Data Transfer Rate: 25 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat
  • Display Timing Reset
  • Auto Data Refresh (GS and DC Only)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • UVLO Sets Default Data
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C

The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.

The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.

The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.

The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.
filter 尋找其它 RGB LED 驅動器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能與所比較的裝置相似
LP5860 現行 具 8 位元類比和 8-/16 位元 PWM 調光的 11 × 18 LED 矩陣驅動器 11 × 18 LED matrix driver

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 3
類型 標題 日期
* Data sheet TLC5955 48-Channel, 16-Bit, PWM LED Driver with DC, BC, LED Open-Short Detection, and Internal Current Setting datasheet PDF | HTML 2014年 3月 7日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Technical article Improve the user experience with an LED ring PDF | HTML 2017年 11月 9日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

TLC5955 IBIS Model

SBVM398.ZIP (36 KB) - IBIS Model
下載
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (DCA) 56 Ultra Librarian
VQFN (RTQ) 56 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片