Texas Instruments TPS92515HVEVM-749, User Manual

Page: 1 / 17

1 SLVUAR5 – May 2016
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module
All trademarks are the property of their respective owners.
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
...................................................................................................................
2
2 Warnings and Cautions
.....................................................................................................
2
3 Description
....................................................................................................................
3
3.1 Typical Applications
................................................................................................
3
3.2 Features
..............................................................................................................
3
4 Electrical Performance Specifications
.....................................................................................
4
5 Schematic
.....................................................................................................................
5
6 Performance Data and Typical Characteristic Curves
..................................................................
6
6.1 Efficiency
.............................................................................................................
6
6.2 PWM Dimming
......................................................................................................
6
6.3 Analog Dimming
....................................................................................................
7
6.4 PWM Dimming Waveforms
........................................................................................
7
7 TPS92515HVEVM-749 PCB Layout
.....................................................................................
11
8 Bill of Materials
.............................................................................................................
12
List of Figures
1 TPS92515HVEVM-749 Schematic
........................................................................................
5
2 Efficiency vs. Input Voltage
.................................................................................................
6
3 Output Current vs. PWM Duty Cycle (250 Hz) 14-V Input, 2 LEDs
..................................................
6
4 Output Current vs. IADJ Voltage 14-V Input, 2 LEDs
..................................................................
7
5 1% Duty Cycle 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage =
14 V, 2 LEDs
................................................................................................................
7
6 50% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 14 V, 2 LEDs
..............................................................................................................
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
...............................................................................................................
9
9 50% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 24 V, 4 LEDs
...............................................................................................................
9
10 99% Duty Cycle, 250 Hz PWM Dimming Top = V
SW
, Middle = V
PWM
, Bottom = LED Current, Input Voltage
= 24 V, 4 LEDs
............................................................................................................
10
11 Top Layer and Top Overlay (Top View)
.................................................................................
11
12 Bottom Layer and Bottom Overlay (Bottom View)
.....................................................................
11
List of Tables
1 TPS92515HVEVM-749 Electrical Performance Specifications
........................................................
4
2 TPS92515HVEVM-749 Bill of Materials
.................................................................................
12