ZHCSO29 July   2021 LP5890

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Independent and Stackable Mode
        1. 8.3.1.1 Independent Mode
        2. 8.3.1.2 Stackable Mode
      2. 8.3.2 Current Setting
        1. 8.3.2.1 Brightness Control (BC) Function
        2. 8.3.2.2 Color Brightness Control (CC) Function
        3. 8.3.2.3 Choosing BC/CC for a Different Application
      3. 8.3.3 Frequency Multiplier
      4. 8.3.4 Line Transitioning Sequence
      5. 8.3.5 Protections and Diagnostics
        1. 8.3.5.1 Thermal Shutdown Protection
        2. 8.3.5.2 IREF Resistor Short Protection
        3. 8.3.5.3 LED Open Load Detection and Removal
          1. 8.3.5.3.1 LED Open Detection
          2. 8.3.5.3.2 Read LED Open Information
          3. 8.3.5.3.3 LED Open Caterpillar Removal
        4. 8.3.5.4 LED Short and Weak Short Circuitry Detection and Removal
          1. 8.3.5.4.1 LED Short and Weak Short Detection
          2. 8.3.5.4.2 Read LED Short Information
          3. 8.3.5.4.3 LSD Caterpillar Removal
    4. 8.4 Device Functional Modes
    5. 8.5 Continuous Clock Series Interface
      1. 8.5.1 Data Validity
      2. 8.5.2 CCSI Frame Format
      3. 8.5.3 Write Command
        1. 8.5.3.1 Chip Index Write Command
        2. 8.5.3.2 VSYNC Write Command
        3. 8.5.3.3 Soft_Reset Command
        4. 8.5.3.4 Data Write Command
      4. 8.5.4 Read Command
    6. 8.6 PWM Grayscale Control
      1. 8.6.1 Grayscale Data Storage and Display
        1. 8.6.1.1 Memory Structure Overview
        2. 8.6.1.2 Details of Memory Bank
        3. 8.6.1.3 Write a Frame Data into Memory Bank
      2. 8.6.2 PWM Control for Display
    7. 8.7 Register Maps
      1. 8.7.1  FC0
      2. 8.7.2  FC1
      3. 8.7.3  FC2
      4. 8.7.4  FC3
      5. 8.7.5  FC4
      6. 8.7.6  FC10
      7. 8.7.7  FC11
      8. 8.7.8  FC12
      9. 8.7.9  FC13
      10. 8.7.10 FC14
      11. 8.7.11 FC15
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 System Structure
        2. 9.2.1.2 SCLK Frequency
        3. 9.2.1.3 Internal GCLK Frequency
        4. 9.2.1.4 Line Switch Time
        5. 9.2.1.5 Blank Time Removal
        6. 9.2.1.6 BC and CC
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Chip Index Command
        2. 9.2.2.2 FC Registers Settings
        3. 9.2.2.3 Grayscale Data Write
        4. 9.2.2.4 VSYNC Command
        5. 9.2.2.5 LED Open and Short Read
      3. 9.2.3 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 Electrostatic Discharge Caution
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.7.2 FC1

FC1 is shown in FC1 Register and described in FC1 Register Field Descriptions.

Figure 8-26 FC1 Register
47464544434241403938373635343332
RESERVEDBLK_ADJLINE_SWTLG_ENH_BLG_ENH_G
R-0bR/W-000000bR/W-0111bR/W-0000b
31302928272625242322212019181716
LG_ENH_GLG_ENH_RLG_STEP_BLG_STEP_G
R/W-0000bR/W-0000bR/W-01001bR/W-01001b
1514131211109876543210
LG_STEP_GLG_STEP_RSEG_LENGTH
R/W-01001bR/W-0'000'000'000b
Table 8-8 FC1 Register Field Descriptions
BitFieldTypeResetDescription
9-0SEG_LENGTHR/W0'000'000'000bSet the GCLK number in each segment
127d: 128 GCLK
...
1023d: 1024 GCLK
others: 128 GCLK
14-10LG_STEP_RR/W01001bAdjust the smooth of the brightness in low grayscale
00000b: level 1
...
01111b: level 16
...
11111b: level 32
19-15LG_STEP_GR/W01001bAdjust the smooth of the brightness in low grayscale
00000b: level 1
...
01111b: level 16
...
11111b: level 32
24-20LG_STEP_BR/W01001bAdjust the smooth of the brightness in low grayscale
00000b: level 1
...
01111b: level 16
...
11111b: level 32
28-25LG_ENH_RR/W0000bAdjust low grayscale enhancement of red channels
0000b: level 0
...
0111b: level 7
...
1111b: level 15
32-29LG_ENH_GR/W0000bAdjust low grayscale enhancement of green channels
0000b: level 0
...
0111b: level 7
...
1111b: level 15
36-33LG_ENH_BR/W0000bAdjust low grayscale enhancement of blue channels
0000b: level 0
...
0111b: level 7
...
1111b: level 15
40-37LINE_SWTR/W0111bSet the scan line switch time.
0000b: 45 GCLK
0001b: 2x30 GCLK
...
0111b: 8x30 GCLK
...
1111b: 16x30 GCLK
46-41BLK_ADJR/W000000bSet the black field adjustment
000000b: 0 GCLK
...
011111b: 31 GCLK
...
111111b: 63 GCLK
47RESERVEDR0bReserved bit.