herunterladen
User's Guide
SLVU965–October 2013
Switch Controlled Direct Drive Switch for Offline LED
Drivers
The TPS92411EVM-001 evaluation module (EVM) helps designers evaluate the operation and
performance of the TPS92411P direct drive switch designed for use with a linear regulator in offline LED
drive applications. The TPS92411P is designed to control the drive of high-brightness light emitting diodes
(LEDs) and features a wide input voltage range (7.5V to 100V) and over-voltage protection.
Contents
1 Description ................................................................................................................... 2
1.1 Typical Applications ................................................................................................ 2
1.2 Features ............................................................................................................. 2
2 Electrical Performance Specifications .................................................................................... 2
3 Schematic .................................................................................................................... 3
4 Performance Data and Typical Characteristic Curves ................................................................. 4
4.1 Power Factor ....................................................................................................... 4
4.2 Line Regulation ..................................................................................................... 4
4.3 Input Voltage and Input Current .................................................................................. 5
4.4 Linear Regulator Drain Voltage and Input Current ............................................................ 5
4.5 Triac Dimming Waveforms ........................................................................................ 6
4.6 EMI Performance .................................................................................................. 9
5 TPS92411EVM-001 PCB layout ......................................................................................... 10
6 Bill of Materials ............................................................................................................. 11
List of Figures
1 TPS92411EVM-001 Schematic........................................................................................... 3
2 Power Factor vs Input Voltage............................................................................................ 4
3 Input (Linear Regulator) Current vs Input Voltage...................................................................... 4
4 Input Voltage (top) and Input Current (bottom) ......................................................................... 5
5 Drain Voltage (top) and Input Current (bottom)......................................................................... 5
6 Forward Phase Triac Dimming: Input Voltage (top) and Input Current (bottom) ................................... 6
7 Forward Phase Triac Dimming: Input Voltage (top) and Input Current (bottom) ................................... 6
8 Forward Phase Triac Dimming: Input Voltage (top) and Input Current (bottom) ................................... 7
9 Reverse Phase Triac Dimming: Input Voltage (top) and Input Current (bottom)................................... 7
10 Reverse Phase Triac Dimming: Input Voltage (top) and Input Current (bottom)................................... 8
11 Reverse Phase Triac Dimming: Input Voltage (top) and Input Current (bottom)................................... 8
12 Conducted EMI Performance.............................................................................................. 9
13 Top Layer and Top Overlay (Top view) ................................................................................ 10
List of Tables
1 TPS92411EVM-001 Electrical Performance Specifications........................................................... 2
2 TPS92411EVM-001 Components List ................................................................................. 11
1
SLVU965–October 2013 Switch Controlled Direct Drive Switch for Offline LED Drivers
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated
Verzeichnis
