SBVS225B March   2013  – May 2014 TLC5973

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling 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 Pin-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 Grayscale (GS) Control
      2. 8.3.2 EasySet and Shunt Regulator
      3. 8.3.3 No Limit Cascading
      4. 8.3.4 Constant Sink Current Value
      5. 8.3.5 Connector Design
    4. 8.4 Device Functional Modes
      1. 8.4.1 Grayscale (GS) Function (PWM Control)
        1. 8.4.1.1 PWM Control
      2. 8.4.2 One-Wire Interface (EasySet) Data Writing Method
        1. 8.4.2.1 Data Transfer Rate (tCYCLE) Measurement Sequence
        2. 8.4.2.2 Data ‘0’ and Data ‘1’ Write Sequence (Data Write Sequence)
        3. 8.4.2.3 One Communication Cycle End of Sequence (EOS)
        4. 8.4.2.4 GS Data Latch (GSLAT) Sequence
    5. 8.5 Programming
      1. 8.5.1 Controlling Devices Connected in Series
    6. 8.6 Register Maps
      1. 8.6.1 Register and Data Latch Configuration
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 No Internal Shunt Regulator Mode 1
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 No Internal Shunt Regulator Mode 2
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
      3. 9.2.3 Internal Shunt Regulator Mode
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 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 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7 Parameter Measurement Information

7.1 Pin-Equivalent Input and Output Schematic Diagrams

TLC5973 pmi_sdi_bvs222.gif Figure 3. SDI
TLC5973 pmi_sdo_bvs222.gif Figure 4. SDO
TLC5973 pmi_outn_bvs222.gif
1.

NOINDENT:

n = 0 to 2.
Figure 5. OUT0 Through OUT2

7.2 Test Circuits

TLC5973 pmi_rise_fall_outn_bvs173.gif
1.

NOINDENT:

n = 0 to 2.
2.

NOINDENT:

CL includes measurement probe and jig capacitance.
Figure 6. Rise and Fall Time Test Circuit for OUTn
TLC5973 pmi_test_sdo_bvs225.gif
1.

NOINDENT:

CL includes measurement probe and jig capacitance.
Figure 7. Rise and Fall Time Test Circuit for SDO
TLC5973 pmi_test_outn_bvs225.gif
1.

NOINDENT:

n = 0 to 2.
Figure 8. Constant-Current Test Circuit for OUTn

7.3 Timing Diagrams

TLC5973 tim_input_bvs225.gif
1. Input pulse rise and fall time is 1 ns to 3 ns.
Figure 9. Input Timing
TLC5973 tim_output_bvs222.gif
1. Input pulse rise and fall time is 1 ns to 3 ns.
Figure 10. Output Timing
TLC5973 tim_data_wr_outn_bvs225.gif
1.

NOINDENT:

OUTn on-time changes, depending on the data in the 36-bit GS data latch.
Figure 11. Data Write and OUTn Switching Timing