Texas Instruments TPS40195 Скачать руководство пользователя страница 22

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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

Содержание TPS40195

Страница 1: ...d TP9 10 6 5 Switch Node TP4 and SYNC TP12 10 6 6 Equipment Shutdown 10 7 TPS40195EVM Typical Performance Data and Characteristic Curves 11 7 1 Line and Load Regulation 11 7 2 Efficiency 11 7 3 Output...

Страница 2: ...12 V bus to low voltage application while providing a number of test points to evaluate the performance of the TPS40195 in a given application 2 1 Applications Non isolated medium current point of lo...

Страница 3: ...0 to 20 A 0 5 VOUTpp Output voltage ripple VIN 12 V IOUT 20 A 50 mVpp IOUT Output current VIN 8 V to 20 V 0 20 20 A IOCP Output overcurrent inception point VIN 12 V 20 5 TRANSIENT RESPONSE I Load step...

Страница 4: ...chematic for Reference Only See Table 9 1 List of Materials for Specific Values Schematic www ti com 4 TPS40195 Buck Controller Evaluation Module User s Guide SLUU297B DECEMBER 2007 REVISED JANUARY 20...

Страница 5: ...OAD1 should be an electronic constant current mode load capable of 0 ADC to 20 ADC at 3 3 V 5 1 4 Oscilloscope Oscilloscope A digital or analog oscilloscope can be used to measure the ripple voltage o...

Страница 6: ...400 LFM is required to reduce component surface temperatures to prevent user injury The EVM should not be left unattended while powered The EVM should not be probed while the fan is not running Test...

Страница 7: ...connected as shown in Figure 5 1 3 Connect the ammeter A1 0 A to 20 A range between VIN and J1 as shown in Figure 5 1 4 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 5 1 5 Connect LOAD1 to J3...

Страница 8: ...the oscilloscope probe tip through TP5 and hold the ground barrel to TP13 as shown in Figure 6 1 For a hands free approach the loop in TP13 can be cut and opened to cradle the probe barrel V2 can hav...

Страница 9: ...ep frequency from 100 Hz to 1 MHz with 10 Hz or lower post filter 7 Control loop gain can be measured by 20 Log ChannelB ChannelA 8 Control loop phase is measured by the phase difference between Chann...

Страница 10: ...Bandwidth AC coupling 1 s div horizontal resolution 5 V div vertical resolution 3 Increase VIN to 12 V 4 Set LOAD1 to 10 A 5 Vary LOAD1 and observe the oscilloscope 6 Vary VIN and observe the oscillos...

Страница 11: ...33 3 31 OUTPUT VOLTAGE vs LOAD CURRENT 12 16 18 20 8 8V 12V 20V 3 28 3 32 Figure 7 1 TPS40195EVM Line and Load Regulation VIN 8 V to 20 V VOUT 3 3 V IOUT 0 A to 20 A 7 2 Efficiency 0 h Efficiency 60...

Страница 12: ...UT 20 A to 4 A Ch1 IOUT Ch2 VOUT Figure 7 5 TPS40195EVM Transient Response VIN 12 V IOUT 4 A to 20 A Ch1 IOUT Ch2 VOUT TPS40195EVM Typical Performance Data and Characteristic Curves www ti com 12 TPS4...

Страница 13: ...requency 60 45 30 15 0 15 30 45 60 100 1000 10000 100000 1000000 Frequency Hz Gain dB 0 45 90 135 180 Phase Gain Phase Figure 7 7 TPS40195EVM Bode Plot VIN 12 V IOUT 0 A Crossover Frequency 46 kHz Pha...

Страница 14: ...TP1 VIN Ch2 TP5 VOUT Ch3 TP11 ENABLE Ch4 TP9 Power Good Figure 7 10 TPS40195EVM Switching Waveform Ch1 TP4 and Synchronization Ch2 TP12 VIN 12 V IOUT 10 A fSYNC 400 kHz TPS40195EVM Typical Performanc...

Страница 15: ...mponents to both sides of the PCB or using additional internal layers can offer additional size reduction for space constrained systems Figure 8 1 TPS40195EVM Component Placement Viewed from Top Figur...

Страница 16: ...ray Viewed from Top EVM Assembly Drawings and Layout www ti com 16 TPS40195 Buck Controller Evaluation Module User s Guide SLUU297B DECEMBER 2007 REVISED JANUARY 2022 Submit Document Feedback Copyrig...

Страница 17: ...RF7832 3 R1 R10 R12 Resistor chip 100 k 1 16 W 1 Std Std 1 R11 Resistor chip 1 30 k 1 16 W 1 Std Std 1 R13 Resistor chip 3 01 k 1 16 W 1 Std Std 1 R14 Resistor chip 22 1 k 1 16 W 1 Std Std 1 R17 Resis...

Страница 18: ...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...

Страница 19: ...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...

Страница 20: ...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...

Страница 21: ...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...

Страница 22: ...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...

Страница 23: ...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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