ZHCSM81A October 2020 – December 2020 TLC6C5748-Q1
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Terminal Configurations and Functions
- 6 Specifications
- 7 Parameter Measurement Information
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
8.3.1 Output Current Calculation
The output current value controlled by MC, DC, and BC can be calculated by Equation 1.
Equation 1. 
where:
- IOLCMax = the maximum constant-current value for all OUTXn for each color group programmed by MC data,
- DCXn = the dot correction value for each channel (0h to 7Fh),
- BCX = the global brightness control value (0h to 7Fh),
- X = R, G, or B for the red, green, or blue color group, and
- n = 0 to 15.
Each output sinks the IOLCMax current when they turn on and the dot correction (DC) data and the global brightness control (BC) data are set to the maximum value of 7Fh (127d). Each output sink current can be reduced by lowering the DC and BC values.
When IOUT is set lower than 1 mA by both MC and BC or BC only, the output may be unstable. Output currents lower than 1 mA can be achieved by setting IOUT to 1 mA with MC and BC or BC only and then using DC to lower the output current.