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TPS92510EVM-011 Fiches technique(PDF) 3 Page - Texas Instruments |
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TPS92510EVM-011 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 22 page www.ti.com List of Figures 1 4-Phase Clock Generator .................................................................................................. 5 2 4-Phase Clock Waveforms ................................................................................................ 5 3 TPS92510EVM-011 Application Schematic ............................................................................. 7 4 Efficiency vs. Number of LEDs (I OUT) ..................................................................................... 8 5 Input Voltage Ripple, V IN = 43 Vdc........................................................................................ 8 6 Input Voltage Ripple, V IN = 48 Vdc........................................................................................ 8 7 Input Voltage Ripple, V IN = 53 Vdc........................................................................................ 8 8 Input Voltage Ripple and Inductor Current .............................................................................. 9 9 Input Voltage Ripple and LED Current ................................................................................... 9 10 Loop Response Gain and Phase ........................................................................................ 10 11 Start-Up Response Relative to Enable ................................................................................. 10 12 External Clock Synchronization, f SW = 250 kHz ....................................................................... 11 13 External Clock Synchronization, f SW = 500 kHz ....................................................................... 11 14 External Clock Synchronization, f SW = 1 MHz .......................................................................... 11 15 PWM Dimming, f PWM = 200 Hz, Duty Cycle = 5% ..................................................................... 12 16 PWM Dimming, f PWM = 200 Hz, Duty Cycle = 95% .................................................................... 12 17 Thermal Foldback ......................................................................................................... 12 18 Thermal Foldback ........................................................................................................ 12 19 Error Amplifier S/H, Duty Cycle = 90% ................................................................................ 13 20 Error Amplifier S/H, Duty Cycle = 10% ................................................................................ 13 21 Top Thermal Performance ............................................................................................... 13 22 Bottom Thermal Performance ........................................................................................... 13 23 TPS92510EVM-011 Top Layer Assembly Drawing .................................................................. 14 24 TPS92510EVM-011 Bottom Copper (Bottom View) .................................................................. 14 25 TPS92510EVM-011 Top Copper (Top View) .......................................................................... 15 3 SLUU977 – JULY 2012 List of Figures Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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