SLVSCQ4
October 2014
TLC5957
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Typical Application Circuit (Multiple Daisy Chained TLC5957s)
5
Revision History
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
Handling Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Parameter Measurement Information
8.1
Pin Equivalent Input and Output Schematic Diagrams
8.2
Test Circuit
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Device Functional Modes
9.3.1
Brightness Control (BC) Function
9.3.2
Color Control (CC) Function
9.3.3
Select RIREF For a Given BC
9.3.4
Choosing BC/CC For a Different Application
9.3.4.1
Example 1: Red LED Current is 20mA, Green LED Needs 12mA, Blue LED needs 8mA
9.3.4.2
Example 2: Red LED Current is 5mA, Green LED Needs 2mA, Blue LED Needs 1mA.
9.3.5
LED Open Detection (LOD)
9.3.6
Poker Mode
9.3.7
Internal Circuit for Caterpillar Removal
9.3.8
Internal Pre-charge FET for Ghost Removal
9.3.9
Thermal Shutdown (TSD)
9.3.10
IREF Resistor Short Protection (ISP)
9.3.11
Noise Reduction
10
Application and Implementation
10.1
Application Information
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Related Links
13.2
Trademarks
13.3
Electrostatic Discharge Caution
13.4
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RTQ|56
MPQF168D
Thermal pad, mechanical data (Package|Pins)
RTQ|56
QFND498B
Orderable Information
slvscq4_oa
slvscq4_pm
8 Parameter Measurement Information
8.1 Pin Equivalent Input and Output Schematic Diagrams
Figure 13. SIN, SCLK
Figure 15. LAT, GCLK
Figure 14. SOUT
Figure 16. OUTR0/G0/B0 through OUTR15/G15/B15
8.2 Test Circuit
Figure 17. Rise Time and Fall Time Test Circuit for OUTXn
Figure 19. Constant Current Test Circuit for OUTXn
Figure 18. Rise Time and Fall Time Test Circuit for SOUT