Table of Contents
Advertisement
Quick Links
TPS92518EVM Dual Buck Controller Evaluation Module
This user's guide describes the specifications, board connection description, characteristics, operation,
and use of the combined, two board TPS92518 Evaluation Module (EVM). A complete schematic diagram,
printed circuit board layouts, and bill of materials are included in this document.
....................................................................................................................
1
2
3
4
Schematic, PCB Layout, and Bill of Materials
.....................................................................................................................
5
Software
6
Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518
1
2
3
4
5
6
7
8
9
10
11
Switch Node Current
12
13
14
15
16
17
Setup Screen 2
18
19
Setup Screen 4
20
21
Setup Screen 6
22
23
Setup Screen 8
24
25
Setup Screen 10
26
Setup Screen 11
27
LEDSPIMCUEVM-879 Schematic, Page 1
28
LEDSPIMCUEVM-879 Schematic, Page 2
29
LEDSPIMCUEVM-879 Schematic, Page 3
SLUUBM0 - May 2017
Submit Documentation Feedback
................................................................................................
..............................................................................................
...............................................................................
..............................................................................................................
........................................................................................................
........................................................................................................
..........................................................................................
............................................................................................
........................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
.............................................................................................................
...........................................................................................................
...........................................................................................................
.............................................................................
.............................................................................
.............................................................................
Copyright © 2017, Texas Instruments Incorporated
Contents
..................................................................
..........................................................................
List of Figures
..................................................
..........................................................
..................................................
............................................................
..............................................
......................................................
...............................................................
TPS92518EVM Dual Buck Controller Evaluation Module
User's Guide
SLUUBM0 - May 2017
2
3
4
11
16
............
22
4
4
5
5
6
6
7
7
8
8
9
10
11
12
13
16
16
17
17
18
18
19
19
20
20
20
22
23
24
1
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Texas Instruments TPS92518EVM
Summary of Contents for Texas Instruments TPS92518EVM
-
Page 1: Table Of Contents
User's Guide SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module This user's guide describes the specifications, board connection description, characteristics, operation, and use of the combined, two board TPS92518 Evaluation Module (EVM). A complete schematic diagram, printed circuit board layouts, and bill of materials are included in this document. -
Page 2: Sluubm0 – May
Table 1. For applications with a different input voltage range or different output voltage range, refer to the TPS92518 data sheet (SLUSCR7). The TPS92518EVM-878 evaluation board is designed to be controlled by a TI microcontroller board, part number LEDSPIMCUEVM-879, available separately, although it can be controlled by any SPI-capable control system. -
Page 3: Description
LEDx_PKTH_DAC register = 0 to 255 Use PWMx pin input Use external FET, program LEDx_MAXOFF_DAC register as per Shunt FET datasheet outline SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 4: Performance Data And Typical Characteristic Curves
50 V, V 24.7 V, peak threshold = 120, minimum off-time = 127 Figure 2. Efficiency Over Temperature at Different Peak Threshold Settings TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 5: Pwm Dimming, Multiple Pwm Frequencies, Both Channels
12 V, V 3 V, peak threshold = 127, off time = 127 Figure 4. Single-Channel PWM Dimming at 400 Hz SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 6: Spi Setting Output Enable Bit And Subsequent Switching Initiation
Figure 5. SPI Setting Output Enable Bit and Subsequent Switching Initiation 3.1.2 Startup on Hardware Enable Pin Transition Figure 6. Hardware PWM Enable Pulled High, Triggering Switching TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 7: Spi Clearing Output Enable Bit And Subsequent Switching Shutdown
Figure 7. SPI Clearing Output Enable Bit and Subsequent Switching Shutdown 3.2.2 Shutdown After Hardware Enable Pin Transition Figure 8. Hardware PWM Enable Pulled Low, Triggering Chip Shutdown SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 8: Current Sharing
= 65 V, V = 23 V, T register setting = 50, peak threshold register setting = 1 Figure 10. Switch Node Current TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 9: Switch Node Current
R17 should be adequate. While the modified schematic shows both output capacitors removed, replacing one with a 220-pF capacitor rather than just removing both may give better V overshoot performance. SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 10: Additional Circuitry Required For Shunt Fet Dimming
This involves loading R1 and changing the value of R2, and possibly populating C28. For details refer to the TPS92518 data sheet (SLUSCR7). TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback... -
Page 11: Tps92518Evm-878 Schematic
Schematic, PCB Layout, and Bill of Materials www.ti.com Schematic, PCB Layout, and Bill of Materials This section contains TPS92518EVM-878 schematics, PCB layouts, and bill of materials (BOM). Schematic Figure 13 illustrates the TPS92518EVM-878 schematic. Figure 13. TPS92518EVM-878 Schematic SLUUBM0 – May 2017... -
Page 12: Tps92518Evm-878 Top Side
Schematic, PCB Layout, and Bill of Materials www.ti.com Layout Figure 14 Figure 15 illustrate the top and bottom side TPS92518EVM-878 PCB layouts. Figure 14. TPS92518EVM-878 Top Side TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback... -
Page 13: Tps92518Evm-878 Bottom Side
Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 15. TPS92518EVM-878 Bottom Side SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 14: Bill Of Materials
Schematic, PCB Layout, and Bill of Materials www.ti.com Bill of Materials Table 4 lists the TPS92518EVM-878 BOM. Table 4. TPS92518EVM-878 Bill of Materials Designator Value Description Package Reference Part Number Manufacturer (none) Printed Circuit Board PWR878 C2, C3, C4, C5, C6, C7, C8, 2.2uF... - Page 15 Schematic, PCB Layout, and Bill of Materials www.ti.com Table 4. TPS92518EVM-878 Bill of Materials (continued) Designator Value Description Package Reference Part Number Manufacturer TP8, TP9, TP10, TP11, Double Terminal, Turret, TH, Double Keystone1502-2 1502-2 Keystone TP12, TP13, TP14, TP15 65V Automotive Dual Buck LED Controller with SPI Interface,...
-
Page 16: Setup Screen
Figure 16. Setup Screen 1 Click the Next > button to install. Figure 17. Setup Screen 2 Click the Next > button. TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 17: Setup Screen
Figure 18. Setup Screen 3 Click the Next > button. Figure 19. Setup Screen 4 Wait for it to finish extracting and installing files. SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 18: Setup Screen
It may be necessary to stop other programs using Microsoft .NET Framework during the installation ® ® process. Select Yes, if asked. TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 19: Setup Screen
Software www.ti.com Figure 22. Setup Screen 7 Figure 23. Setup Screen 8 Wait for .NET to download, verify, and install. SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 20: Setup Screen
Figure 26. Setup Screen 11 Click on the Finish > button. At this point the software should be ready to use. Click on the TI TPS92518 Demonstration Kit icon. TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback... - Page 21 SPI bus operation, read commands must be sent twice; once to load the read command and another time to clock out the requested data. SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
-
Page 22: Ledspimcuevm-879 Schematic
TPS92518 evaluation board. Figure 27. LEDSPIMCUEVM-879 Schematic, Page 1 TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 23: Ledspimcuevm-879 Schematic
Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518 www.ti.com Figure 28. LEDSPIMCUEVM-879 Schematic, Page 2 SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 24: Ledspimcuevm-879 Schematic
Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518 www.ti.com Figure 29. LEDSPIMCUEVM-879 Schematic, Page 3 TPS92518EVM Dual Buck Controller Evaluation Module SLUUBM0 – May 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 25: Sluubm0 – May 2017 Tps92518Evm Dual Buck Controller Evaluation Module
Use of LEDSPIMCUEVM-879 Microcontroller Board for SPI Communications with the TPS92518 www.ti.com Figure 30. LEDSPIMCUEVM-879 Schematic, Page 4 SLUUBM0 – May 2017 TPS92518EVM Dual Buck Controller Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 26 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 27 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 28 【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 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes.
- Page 29 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 © 2017, Texas Instruments Incorporated...
- Page 30 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
Need help?
Do you have a question about the TPS92518EVM and is the answer not in the manual?
Questions and answers