SNVSC61A August   2022  – December 2022 LP5891-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  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/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 MPSM Write Command
        4. 8.5.3.4 Standby Clear and Enable Command
        5. 8.5.3.5 Soft_Reset Command
        6. 8.5.3.6 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  FC14
      7. 8.7.7  FC15
      8. 8.7.8  FC16
      9. 8.7.9  FC17
      10. 8.7.10 FC18
      11. 8.7.11 FC19
      12. 8.7.12 FC20
      13. 8.7.13 FC21
  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, Short Read
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.7.4 FC3

FC3 is shown in Figure 8-32 and described in Table 8-10.

Figure 8-32 FC3 Register
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
LSDVTH_B LSDVTH_G LSDVTH_R LSD_RM BC
R/W-000b R/W-000b R/W-000b R/W-0111b R/W-011b
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
CC_B CC_G
R/W-0111 1111b R/W-0111 1111b
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CC_R LOD_LSD_RB RESERVED LODVTH_B LODVTH_G LODVTH_R
R/W-0111 1111b R/W-0b R-0b R/W-00b R/W-00b R/W-00b
Table 8-10 FC3 Register Field Descriptions
Bit Field Type Reset Description
1-0 LODVTH_R R/W 00b Set the Red LED open load detection threshold
00b: (VLEDR-0.2) V
01b: (VLEDR-0.5) V
10b: (VLEDR-0.9) V
11b: (VLEDR-1.2) V
3-2 LODVTH_G R/W 00b Set the Green LED open load detection threshold
00b: (VLEDG-0.2) V
01b: (VLEDG-0.5) V
10b: (VLEDG-0.9) V
11b: (VLEDG-1.2) V
5-4 LODVTH_B R/W 00b Set the Blue LED open load detection threshold
00b: (VLEDB-0.2) V
01b: (VLEDB-0.5) V
10b: (VLEDB-0.9) V
11b: (VLEDB-1.2) V
6 RESERVED R 0b
7 LOD_LSD_RB R/W 0b Enable or disable the LOD and LSD readback function
0b: disabled
01b: enabled
15-8 CC_R R/W 0111 1111b Set the Red color brightness level
0000 0000b: level 0 (lowest)
...
0111 1111b: level 127 (middle)
...
1111 1111b: level 255 (highest)
23-16 CC_G R/W 0111 1111b Set the Green color brightness level
0000 0000b: level 0 (lowest)
...
0111 1111b: level 127 (middle)
...
1111 1111b: level 255 (highest)
31-24 CC_B R/W 0111 1111b Set the Blue color brightness level
0000 0000b: level 0 (lowest)
...
0111 1111b: level 127 (middle)
...
1111 1111b: level 255 (highest)
34-32 BC R/W 011b Set the global brightness level
000b: level 0 (lowest)
...
011b: level 3 (middle)
...
111b: level 7 (highest)
38-35 LSD_RM R/W 0111b Set the LED short removal level
0000b: level 1
0001b: level 2
0010b: level 3
0011b: level 4
0100b: level 5
0101b: level 6
0110b: level 7
0111b: level 8
1000b: level 9
1001b: level 10
1010b: level 11
1011b: level 12
1100b: level 13
1101b: level 14
1110b: level 15
1111b: level 16
41-39 LSDVTH_R R/W 000b Set the Red LED short/weak short circuitry detection threshold (typical)
000b: 0.2 V
001b: 0.4 V
010b: 0.8 V
011b: 1.0 V
100b: 1.2 V
101b: 1.4 V
110b: 1.6 V
111b: 1.8 V
44-42 LSDVTH_G R/W 000b Set the Green LED short/weak short circuitry detection threshold (typical)
000b: 0.2 V
001b: 0.4 V
010b: 0.8 V
011b: 1.2 V
100b: 1.6 V
101b: 2 V
110b: 2.4 V
111b: 2.8 V
47-45 LSDVTH_B R/W 000b Set the Blue LED short/weak short circuitry detection threshold (typical)
000b: 0.2 V
001b: 0.4 V
010b: 0.8 V
011b: 1.2 V
100b: 1.6 V
101b: 2 V
110b: 2.4 V
111b: 2.8 V