首頁 電源管理 LED 驅動器 LED 顯示驅動器
首頁
電源管理
LED 驅動器
LED 顯示驅動器

TLC5905

現行

具有可選數據輸出定時的 8/16 通道 LED 驅動器

立即訂購
產品規格表

TLC5905

現行
產品規格表 立即訂購

產品詳細資料

Features Error Flag, PWM LED Driver, Power good, Thermal shutdown Analog dimming steps 32 Data transfer rate (typ) (MHz) 15 Ch to ch accuracy (typ) (±%) 4 Rating Catalog Operating temperature range (°C) -20 to 85
Features Error Flag, PWM LED Driver, Power good, Thermal shutdown Analog dimming steps 32 Data transfer rate (typ) (MHz) 15 Ch to ch accuracy (typ) (±%) 4 Rating Catalog Operating temperature range (°C) -20 to 85
HTQFP (PAP) 64 144 mm² 12 x 12
  • Drive Capability and Output Counts:
    • 80 mA (Current Sink) × 16 Bits
    • 120 mA (Current Sink) × 8 Bits
  • Constant Current Output Range:
    • 5 mA to 80 mA/10 mA to 120 mA (Selectable by MODE Terminal) ( Current Value Setting for All Output Terminals Using External Resistor and Internal Brightness Control Register)
  • Constant Current Accuracy ±4% (Maximum Error Between Bits)
  • Voltage Applied to Constant Current Output Terminals:
    • Minimum 0.4 V (Output Current 5 mA to 40 mA)
    • Minimum 0.7 V (Output Current 40 mA to 80 mA)
  • 256 Gray Scale Display:
    • Pulse Width Control 256 Steps
  • Brightness Adjustment:
    • Output Current Adjustment for 32 Steps (Adjustment for Brightness Deviation Between LED Modules)
    • 8 Steps Brightness Control by 8 Times Speed Gray Scale Control Clock (Brightness Adjustment for Panel)
  • Error Output Signal Check:
    • Check Error Output Signal Line Such as Protection Circuit When Operating
  • Data Output Timing Selectable:
    • Select Data Output Timing for Shift Register Relative to Clock
  • OVM (Output Voltage Monitor):
    • Monitor Voltage on Constant Current Output Terminals (Detect LED Disconnection and Short Circuit)
  • WDT (Watchdog Timer):
    • Turn Output Off When Scan Signal Stopped
  • TSD (Thermal Shut Down):
    • Turn Output Off When Junction Temperature Exceeds Limit
  • Data Input:
    • Clock Synchronized 1 Bit Serial Input (Shmitt-Triggered Input)
  • Data Output:
    • Clock Synchronized 1 Bit Serial Output (3-State Output)
  • Input Signal Level:
    • CMOS Level
  • Power Supply Voltage...4.5 V to 5.5 V
  • Maximum Output Voltage...17 V
  • Data Transfer Rate...15 MHz (Max
  • Gray Scale Clock Frequency...8 MHz (Max)
  • Operating Free-Air Temperature Range
    -20°C to 85°C
  • 64-Pin HTQFP Package (PD = 4.9 W,
    TA = 25°C)
  • Drive Capability and Output Counts:
    • 80 mA (Current Sink) × 16 Bits
    • 120 mA (Current Sink) × 8 Bits
  • Constant Current Output Range:
    • 5 mA to 80 mA/10 mA to 120 mA (Selectable by MODE Terminal) ( Current Value Setting for All Output Terminals Using External Resistor and Internal Brightness Control Register)
  • Constant Current Accuracy ±4% (Maximum Error Between Bits)
  • Voltage Applied to Constant Current Output Terminals:
    • Minimum 0.4 V (Output Current 5 mA to 40 mA)
    • Minimum 0.7 V (Output Current 40 mA to 80 mA)
  • 256 Gray Scale Display:
    • Pulse Width Control 256 Steps
  • Brightness Adjustment:
    • Output Current Adjustment for 32 Steps (Adjustment for Brightness Deviation Between LED Modules)
    • 8 Steps Brightness Control by 8 Times Speed Gray Scale Control Clock (Brightness Adjustment for Panel)
  • Error Output Signal Check:
    • Check Error Output Signal Line Such as Protection Circuit When Operating
  • Data Output Timing Selectable:
    • Select Data Output Timing for Shift Register Relative to Clock
  • OVM (Output Voltage Monitor):
    • Monitor Voltage on Constant Current Output Terminals (Detect LED Disconnection and Short Circuit)
  • WDT (Watchdog Timer):
    • Turn Output Off When Scan Signal Stopped
  • TSD (Thermal Shut Down):
    • Turn Output Off When Junction Temperature Exceeds Limit
  • Data Input:
    • Clock Synchronized 1 Bit Serial Input (Shmitt-Triggered Input)
  • Data Output:
    • Clock Synchronized 1 Bit Serial Output (3-State Output)
  • Input Signal Level:
    • CMOS Level
  • Power Supply Voltage...4.5 V to 5.5 V
  • Maximum Output Voltage...17 V
  • Data Transfer Rate...15 MHz (Max
  • Gray Scale Clock Frequency...8 MHz (Max)
  • Operating Free-Air Temperature Range
    -20°C to 85°C
  • 64-Pin HTQFP Package (PD = 4.9 W,
    TA = 25°C)

The TLC5905 is a constant current driver that incorporates shift register, data latch, constant current circuitry with a current value adjustable and 256 gray scale display that uses pulse width control. The output current can be selected as maximum 80 mA with 16 bits or 120 mA with 8 bit. The current value of the constant current output is set by one external resistor. After this device is mounted on a printed-circuit board (PCB), the brightness deviation between LED modules (ICs) can be adjusted using an external data input, and the brightness control for the panel can be accomplished by the brightness adjustment circuitry. Also, the device incorporates the output voltage monitor (OVM) used for LED open detection (LOD) by monitoring constant current output. Moreover, the device incorporates watchdog timer (WDT) circuitry, which turns constant current output off when the scan signal stops during dynamic scanning operation, and thermal shutdown (TSD) circuitry, which turns constant current output off when the junction temperature exceeds the limit.

The TLC5905 is a constant current driver that incorporates shift register, data latch, constant current circuitry with a current value adjustable and 256 gray scale display that uses pulse width control. The output current can be selected as maximum 80 mA with 16 bits or 120 mA with 8 bit. The current value of the constant current output is set by one external resistor. After this device is mounted on a printed-circuit board (PCB), the brightness deviation between LED modules (ICs) can be adjusted using an external data input, and the brightness control for the panel can be accomplished by the brightness adjustment circuitry. Also, the device incorporates the output voltage monitor (OVM) used for LED open detection (LOD) by monitoring constant current output. Moreover, the device incorporates watchdog timer (WDT) circuitry, which turns constant current output off when the scan signal stops during dynamic scanning operation, and thermal shutdown (TSD) circuitry, which turns constant current output off when the junction temperature exceeds the limit.

filter 尋找其它 LED 顯示驅動器
下載 觀看有字幕稿的影片 影片

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 2
類型 標題 日期
* Data sheet LED Driver datasheet 1999年 11月 24日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21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 引腳 下載
HTQFP (PAP) 64 檢視選項
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
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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