SLVSEB3A
June 2018 – January 2019
TLC6946
,
TLC6948
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application Schematic of TLC6948 With 48-Multiplexing
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Switching Characteristics
7.7
Typical Characteristics
8
Parameter Measurement Information
8.1
Pin Equivalent Input and Output Schematic Diagrams
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Built-In 16Kb Display Memory (SRAM)
9.3.2
GCLK Dual-Edge Operation
9.3.3
Programmable Constant-Sink Channel Current
9.3.3.1
Global Brightness Control (BC)
9.3.3.2
Select RIREF for a Given BC
9.3.4
Grayscale (GS) Function (PWM Control)
9.3.5
Serial Data Interface
9.3.6
LED-Open Detection (LOD)
9.3.7
Caterpillar Removal
9.3.8
Precharge FET
9.3.9
Thermal Shutdown
9.3.10
IREF Resistor Short Protection (ISP)
9.4
Device Functional Modes
9.4.1
Normal Operating Mode
9.4.2
Power-Save Mode (PSM)
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedures
10.2.2.1
Power Supply Voltage
10.2.2.2
Channel Current and Brightness Control
10.2.2.3
SCLK and GCLK Frequency
10.2.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Examples
13
Device and Documentation Support
13.1
Documentation Support
13.1.1
Related Documentation
13.2
Related Links
13.3
Receiving Notification of Documentation Updates
13.4
Community Resources
13.5
Trademarks
13.6
Electrostatic Discharge Caution
13.7
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DBQ|24
MPDS211A
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND136Y
Orderable Information
slvseb3a_oa
slvseb3a_pm
9
Detailed Description