Texas Instruments TPS7B4255EVM-062 User Manual Download Page 19

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5

8.

Limitations on Damages and Liability:

8.1

General Limitations

. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,

INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.

8.2

Specific Limitations.

IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED

HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE
CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.

9.

Return Policy.

Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)

will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.

10.

Governing Law:

These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,

without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
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 © 2019, Texas Instruments Incorporated

Summary of Contents for TPS7B4255EVM-062

Page 1: ...4255 Q1 low dropout linear regulator LDO Included in this user s guide are setup and operating instructions thermal and layout guidelines a printed circuit board PCB layout a schematic diagram and a b...

Page 2: ...3 3 TPS7B4255EVM 062 Load Transient Results 50 A to 70 mA Load Step 9 Figure 3 4 TPS7B4255EVM 062 Load Transient Results 70 mA to 50 A Load Step 9 Figure 4 1 Top Assembly Layer and Silkscreen 10 Figu...

Page 3: ...hat are connected to the main power supply The following warnings are noted for the safety of anyone using or working close to the TPS7B4255EVM 062 Observe all safety precautions WARNING Failure to ad...

Page 4: ...5QDYBRQ1 U1 100V 1uF C2 DNP 100V 1 F C5 DNP 50V 1uF C9 DNP VO 1 FB NC 2 GND 4 GND 5 GND 6 GND 3 VI 8 EN 7 PAD 9 TPS7B8401QWDRBRQ1 U2 VIN TP2 GND 1 2 3 4 5 6 J14 8V 17 8k R6 30 0k R7 48 7k R8 5V 3 3V G...

Page 5: ...e connection and the GND terminal is the negative that is ground connection 3 1 3 EN EN is a 3 pin header used to enable or disable the TPS7B84 Q1 which in turn enables the TPS7B4255 Q1 The center pin...

Page 6: ...n example as illustrated by the white boxes in Figure 3 2 The prepopulated capacitors are sized to ensure the minimum capacitance requirements are maintained under all normal operating conditions Opti...

Page 7: ...board layout is designed such that the Iin current probe slot does not detect any current that goes to the TPS7B84 Q1 circuit or its peripherals during start up or during any other operational mode T...

Page 8: ...per in the current path can reduce this ringing 10 AWG wire can be used as needed If ringing persists install damping networks by adding a series resistor and capacitor in parallel with VIN Locations...

Page 9: ...rated in Figure 3 3 and Figure 3 4 the TPS7B4255 Q1 transient response is very fast and the output voltage recovers in well under 1 ms after the initial load transient Use a pulse duration limit of 1...

Page 10: ...most at risk of raising the junction temperature during normal operation The LDO may become hot to the touch during normal operation see the thermal impedance discussion in the TPS7B4255 Q1 data sheet...

Page 11: ...rnal Layer 4 Figure 4 7 Bottom Layer Routing Figure 4 8 Bottom Assembly Layer and Silkscreen www ti com Board Layout SLVUCA5 JUNE 2022 Submit Document Feedback TPS7B4255EVM 062 Evaluation Module 11 Co...

Page 12: ...J21 3 SMA Straight Jack Gold 50 Ohm TH SMA Straight Jack TH 901 144 8RFX Amphenol RF J3 J4 J20 3 Standard Banana Jack insulated 10A red 571 0500 571 0500 DEM Manufacturing J5 J11 2 Header 100mil 2x1...

Page 13: ...omotive T R 0805 CGA4J1X7R1H475 K125AC TDK Corporation C2 C3 C6 0 1uF CAP CERM 1 uF 100 V 10 X7R 1206 1206 C3216X7R2A105K1 60AA TDK C5 0 1uF CAP CERM 1 F 100 V 10 X7R AEC Q200 Grade 1 0805 0805 08051C...

Page 14: ...5 0805 RL1220S 1R0 F Susumu Co Ltd R5 R17 0 1 00k RES 1 00 k 1 0 125 W AEC Q200 Grade 0 0805 0805 ERJ 6ENF1001V Panasonic R9 R10 R11 R12 R13 0 154 RES 154 1 0 5 W 1210 1210 RC1210FR 07154R L Yageo R14...

Page 15: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 16: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 17: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 18: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 19: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 20: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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