ZHCSM81A October   2020  – December 2020 TLC6C5748-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Terminal Configurations and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Terminal-Equivalent Input and Output Schematic Diagrams
    2. 7.2 Test Circuits
    3. 7.3 Timing Diagrams
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Output Current Calculation
      2. 8.3.2 Register and Data Latch Configuration
        1. 8.3.2.1 769-Bit Common Shift Register
        2. 8.3.2.2 Grayscale (GS) Data Latch
        3. 8.3.2.3 Control Data Latch
        4. 8.3.2.4 Dot Correction (DC) Data Latch
        5. 8.3.2.5 Maximum Current (MC) Data Latch
        6. 8.3.2.6 Global Brightness Control (BC) Data Latch
        7. 8.3.2.7 Function Control (FC) Data Latch
      3. 8.3.3 Status Information Data (SID)
      4. 8.3.4 LED Open Detection (LOD)
      5. 8.3.5 LED Short Detection (LSD)
      6. 8.3.6 Thermal Shutdown Faults (TSD)
      7. 8.3.7 Noise Reduction
    4. 8.4 Device Functional Modes
      1. 8.4.1 Maximum Current Control (MC) Function
      2. 8.4.2 Dot Correction (DC) Function
      3. 8.4.3 Global Brightness Control (BC) Function
      4. 8.4.4 Grayscale (GS) Function (PWM Control)
        1. 8.4.4.1 Conventional PWM Control
        2. 8.4.4.2 Enhanced Spectrum (ES) PWM Control
        3. 8.4.4.3 Auto Display Repeat Function
        4. 8.4.4.4 Display Timing Reset Function
        5. 8.4.4.5 Auto Data Refresh Function
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Daisy-Chain Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Step-by-Step Design Procedure
          2. 9.2.1.2.2 Maximum Current (MC) Data
          3. 9.2.1.2.3 Global Brightness Control (BC) Data
          4. 9.2.1.2.4 Dot Correction (DC) Data
          5. 9.2.1.2.5 Grayscale (GS) Data
          6. 9.2.1.2.6 Other Control Data
        3. 9.2.1.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 静电放电警告
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information

8.3.2.6 Global Brightness Control (BC) Data Latch

Global BC data are seven bits long. The global brightness for all outputs is controlled by the data in the control data latch. The data are used to adjust the constant-current values for the 48-channel constant-current outputs. As explained in the Global Brightness Control (BC) Function section, the BC values are used to adjust the output current from 10% to 100% of the maximum value. When the device is powered on, the BC data are random.

The global BC data bit assignment in the control data latch is shown in Table 8-4. See Table 8-10 for a summary of the BC data value versus set current value.

Table 8-4 Global Brightness Control Data Bit Assignment in the Control Data Latch
CONTROL DATA LATCH BIT NUMBERBIT NAMEDEFAULT VALUECONTROLLED CHANNEL
351-345BCR[6:0]N/A (no default value)BC bits[6:0] for red color group channels (OUTR0 to OUTR15)
358-352BCG[6:0]BC bits[6:0] for green color group channels (OUTG0 to OUTG15)
365-359BCB[6:0]BC bits[6:0] for blue color group channels (OUTB0 to OUTB15)
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