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TPS92515HVEVM-749 High Current Buck LED Driver
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.
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3
3.1
3.2
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5
6
6.1
Efficiency
6.2
6.3
6.4
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8
1
2
3
4
5
1% Duty Cycle 250 Hz PWM Dimming Top = V
6
50% Duty Cycle, 250 Hz PWM Dimming Top = V
= 14 V, 2 LEDs
7
99% Duty Cycle, 250 Hz PWM Dimming Top = V
= 14 V, 2 LEDs
8
1% Duty Cycle, 250 Hz PWM Dimming Top = V
= 24 V, 4 LEDs
9
50% Duty Cycle, 250 Hz PWM Dimming Top = V
= 24 V, 4 LEDs
10
99% Duty Cycle, 250 Hz PWM Dimming Top = V
= 24 V, 4 LEDs
11
12
1
2
All trademarks are the property of their respective owners.
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TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module
Copyright © 2016, Texas Instruments Incorporated
Evaluation Module
Contents
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List of Figures
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, Middle = V
, Bottom = LED Current, Input Voltage =
SW
PWM
, Middle = V
, Bottom = LED Current, Input Voltage
SW
PWM
, Middle = V
, Bottom = LED Current, Input Voltage
SW
PWM
, Middle = V
, Bottom = LED Current, Input Voltage
SW
PWM
, Middle = V
, Bottom = LED Current, Input Voltage
SW
PWM
, Middle = V
, Bottom = LED Current, Input Voltage
SW
PWM
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List of Tables
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User's Guide
SLVUAR5 - May 2016
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Summary of Contents for Texas Instruments TPS92515HVEVM-749
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Page 1: Table Of Contents
............TPS92515HVEVM-749 Electrical Performance Specifications ................. TPS92515HVEVM-749 Bill of Materials All trademarks are the property of their respective owners. SLVUAR5 – May 2016 TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated... -
Page 2: Introduction
Introduction The TPS92515HVEVM-749 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92515 buck switching regulator designed for high-current LED drive applications. The TPS92515 is designed to control the drive of high-brightness light-emitting diodes (LED) and features a wide input voltage range (5.5 V to 65 V), PWM dimming capability, analog dimming capability, and input... -
Page 3: Description
3.2.2 High Speed Shunt FET Dimming The TPS92515HVEVM-749 is capable of high speed shunt FET dimming for fast PWM dimming and/or extended PWM dimming range. To implement shunt FET dimming use an externally driven FET across the LED load placed as close to the LED load as possible to minimize parasitic inductance. The EVM will need minor modifications to the OFF timer due to shorting the output. -
Page 4: Electrical Performance Specifications
Efficiency Input voltage = 42 V, 7 LEDs Switching frequency Input voltage = 14 V, 2 LEDs k Hz TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module SLVUAR5 – May 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated... -
Page 5: Schematic
Iout = 2A Max. 2.2 µF 4.99k 100V 0.1 µF Copyright © 2016, Texas Instruments Incorporated Figure 1. TPS92515HVEVM-749 Schematic SLVUAR5 – May 2016 TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated... -
Page 6: Performance Data And Typical Characteristic Curves
PWM Duty Cycle (%) D001 Figure 3. Output Current vs. PWM Duty Cycle (250 Hz) 14-V Input, 2 LEDs TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module SLVUAR5 – May 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated... -
Page 7: Analog Dimming
Top = V , Middle = V , Bottom = LED Current, Input Voltage = 14 V, 2 LEDs SLVUAR5 – May 2016 TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated... - Page 8 Top = V , Middle = V , Bottom = LED Current, Input Voltage = 14 V, 2 LEDs TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module SLVUAR5 – May 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
- Page 9 Top = V , Middle = V , Bottom = LED Current, Input Voltage = 24 V, 4 LEDs SLVUAR5 – May 2016 TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
- Page 10 Top = V , Middle = V , Bottom = LED Current, Input Voltage = 24 V, 4 LEDs TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module SLVUAR5 – May 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
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Page 11: Tps92515Hvevm-749 Pcb Layout
TPS92515HVEVM-749 PCB Layout Figure 11 Figure 12 show the design of the TPS92515HVEVM-749 printed circuit board. Figure 11. Top Layer and Top Overlay (Top View) Figure 12. Bottom Layer and Bottom Overlay (Bottom View) SLVUAR5 – May 2016 TPS92515HVEVM-749 High Current Buck LED Driver Evaluation Module Submit Documentation Feedback Copyright ©... -
Page 12: Bill Of Materials
Bill of Materials www.ti.com Bill of Materials Table 2 contains the TPS92515HVEVM-749 components list according to the schematic shown in Figure Table 2. TPS92515HVEVM-749 Bill of Materials Reference Value Description Size Part Number Designator C1, C2, C3, C9 2.2uF CAP, CERM, 2.2 µF, 100 V, +/- 20%, X7S... - Page 13 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
- Page 14 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
- Page 15 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
- Page 16 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
- Page 17 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
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