Texas Instruments TPS92515HVEVM-749, Руководство пользователя

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1 SLVUAR5 – May 2016
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TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module
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User's Guide
SLVUAR5 – May 2016
TPS92515HVEVM-749 High Current Buck LED Driver
Evaluation Module
This user's guide describes the characteristics, operation, and use of the TPS92515 high current buck
LED driver evaluation module (EVM). A complete schematic diagram, printed-circuit board layouts, and bill
of materials are included in this document.
Contents
1 Introduction
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2 Warnings and Cautions
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3 Description
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3.1 Typical Applications
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3.2 Features
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4 Electrical Performance Specifications
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5 Schematic
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6 Performance Data and Typical Characteristic Curves
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6.1 Efficiency
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6.2 PWM Dimming
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6.3 Analog Dimming
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6.4 PWM Dimming Waveforms
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7 TPS92515HVEVM-749 PCB Layout
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8 Bill of Materials
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List of Figures
1 TPS92515HVEVM-749 Schematic
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2 Efficiency vs. Input Voltage
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3 Output Current vs. PWM Duty Cycle (250 Hz) 14-V Input, 2 LEDs
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4 Output Current vs. IADJ Voltage 14-V Input, 2 LEDs
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5 1% Duty Cycle 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage =
14 V, 2 LEDs
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6 50% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 14 V, 2 LEDs
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8
7 99% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 14 V, 2 LEDs
...............................................................................................................
8
8 1% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 24 V, 4 LEDs
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9
9 50% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 24 V, 4 LEDs
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9
10 99% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 24 V, 4 LEDs
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11 Top Layer and Top Overlay (Top View)
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12 Bottom Layer and Bottom Overlay (Bottom View)
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List of Tables
1 TPS92515HVEVM-749 Electrical Performance Specifications
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2 TPS92515HVEVM-749 Bill of Materials
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