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TPS25944X635EVM: Evaluation Module for TPS25944X
This user's guide describes the evaluation module (EVM) for the Texas instruments TPS25944X devices.
TPS25944X devices are circuit breaker with True Reverse Blocking for Power Mux that operates from 2.7
V to 18 V, device has integrated back-to-back FETs with programmable undervoltage, overvoltage,
reverse-voltage, overcurrent and in-rush current protection features.
While ordering the TPS25944XEVM-635, customers may receive the EVM with TPS25940XEVM-635 or
TPS25942XEVM-635 labels.
Make the following changes to configure the received EVM as TPS25944XEVM-635, to achieve the
TPS25944X circuit breaker functionality:
1. Please order TPS25944ARVCR and TPS25944LRVCR samples from
2. Replace the U1, as the with TPS25944A
3. Replace the U2, as the with TPS25944L
4. Make sure the following parts are unpopulated:
•
R7, R8
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1
Introduction
1.1
EVM Features
1.2
EVM Applications
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2
Description
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3
Schematic
4
General Configurations
4.1
Physical Access
4.2
Test Equipment
4.3
Test Setup
4.4
Test Procedures
5
EVM Assembly Drawings and Layout Guidelines
5.1
PCB Drawings
6
Bill of Materials (BOM)
1
TPS25944XEVM Schematic
2
EVM Test Setup
3
Vout Ramp-Up Time of Auto-Retry Circuit Breaker (CH1)
4
Vout Ramp-up Time of Latched Circuit Breaker (CH2)
5
Output Short Circuit Behavior of Auto-Retry Circuit Breaker (CH1)
6
Circuit Breaking Time Delay (CH1)
7
Output Short-Circuit Behavior of Latched Circuit Breaker (CH2)
8
Circuit-Breaking Time Delay (CH2)
9
Top Side Placement
10
Top Side Routing Layer
11
Bottom Side Routing Layer
SLUUBC2A – May 2015 – Revised July 2015
Submit Documentation Feedback
Important Note to TPS25944XEVM-635 Users
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List of Figures
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Copyright © 2015, Texas Instruments Incorporated
SLUUBC2A – May 2015 – Revised July 2015
www.ti.com
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TPS25944X635EVM: Evaluation Module for TPS25944X
User's Guide
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Related Manuals for Texas Instruments TPS25944X635EVM
Summary of Contents for Texas Instruments TPS25944X635EVM
- Page 1 SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X This user’s guide describes the evaluation module (EVM) for the Texas instruments TPS25944X devices. TPS25944X devices are circuit breaker with True Reverse Blocking for Power Mux that operates from 2.7 V to 18 V, device has integrated back-to-back FETs with programmable undervoltage, overvoltage, reverse-voltage, overcurrent and in-rush current protection features.
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Page 2: Table Of Contents
– Solid state relays and FAN control • Power Path Management: – Active ORing – Priority power multiplexing TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 3: Tps25944X Evm Options And Default Setting
Circuit Breaker 2.7 V–18 V 10.8 V 16.5 V 3.6 A 2.1 A 5.3 A Auto-retry Latched (2.3 V) SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... - Page 4 35.7k ILIM HI Net-Tie TP24 24.9k SH-J9 TP25 16.2k TP23 TP26 Net-Tie Net-Tie SGND2 Figure 1. TPS25944XEVM Schematic TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
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Page 5: Input And Output Connector Functionality
D7 (Green) CH2 Power good indicator. LED turns on when the voltage at TP2(VOUT1) is more than 10.8V SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... - Page 6 4.2.4 Loads One resistive load or equivalent which take up to 6 ADC load at 12 V and capable to do the output short. TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback...
- Page 7 Load Supply Positive Positive PWR635 Voltmeter Negative Power Negative Supply Positive Load Positive Figure 2. EVM Test Setup SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
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Page 8: Operational Range Setting For Vin1, Vin2 = 12 V, 5 V And 3.3
RED FLTb2 LED (D6) turns on. Release S2. 2. Reduce the input voltage on VIN2 and monitor VOUT2. Verify that VOUT2 (TP16) starts falling and is TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback... -
Page 9: Pwr635 Oscilloscope Setting For Ramp-Up Voltage Test
3. Set the output load at 5 Ω on CH2 and then enable the load. Turn on the power supply, Press the EVM RST switch (S2) and release, verify that VOUT2 (TP16) ramps up as shown in Figure SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 10: Pwr635 Oscilloscope Setting For Current Limit Test
Jumper Position Load Current Limit J4 (CH1) J9 (CH2) 5.3 A 3.6 A No Jumper No Jumper 2.1 A TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... - Page 11 VIN2 power supply and verify that the input current is limited as per the setting in Table 9 and the device is in latched-off mode and FLTb2 RED LED (D6) turns ON. SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
- Page 12 Figure 7. Output Short-Circuit Behavior of Latched Circuit Breaker (CH2) Figure 8. Circuit-Breaking Time Delay (CH2) 5. Set the input power supply to zero volts and disconnect all equipment from the DUT TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback...
- Page 13 EVM. Figure 9. Top Side Placement Figure 10. Top Side Routing Layer SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
- Page 14 EVM Assembly Drawings and Layout Guidelines www.ti.com Figure 11. Bottom Side Routing Layer TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
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Page 15: Tps25944Xevm-635 Bill Of Material
Unless otherwise noted in the Alternate Part Number and/or Alternate Manufacturer columns, all parts may be substituted with equivalents. SLUUBC2A – May 2015 – Revised July 2015 TPS25944X635EVM: Evaluation Module for TPS25944X Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... - Page 16 RES, 48.7k ohm, 1%, 0.1W, 0603 0603 CRCW060348K7FKEA Vishay-Dale SH-J5, SH-J6, Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA SNT-100-BK-G Samtec SH-J10 TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
- Page 17 Added Important Note to TPS25944XEVM-635 Users. NOTE: Page numbers for previous revisions may differ from page numbers in the current version. SLUUBC2A – May 2015 – Revised July 2015 Revision History Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
- Page 18 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 19 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 20 【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 21 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 22 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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