Texas Instruments TPS40345EVM-353 User Manual Download Page 4 | Manualshive

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Texas Instruments TPS40345EVM-353 User Manual Download Page 4

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TPS40345EVM-353 Schematic

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SNVU588 – November 2017

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Copyright © 2017, Texas Instruments Incorporated

TPS40345EVM-353 Evaluation Module

3

TPS40345EVM-353 Schematic

For reference only, See

for specific values

Figure 1. TPS40345EVM-353 Schematic

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Summary of Contents for TPS40345EVM-353

Page 1: ...4 3 Test Point Descriptions 5 5 Test Setup 7 5 1 Equipment 7 5 2 Equipment Setup 7 5 3 Start Up Shutdown Procedure 9 5 4 Output Ripple Voltage Measurement Procedure 9 5 5 Control Loop Gain and Phase...

Page 2: ...Top View 15 14 TPS40345EVM 353 Bottom Copper Top View 15 15 TPS40345EVM 353 Internal 1 X Ray Top View 16 16 TPS40345EVM 353 Internal 2 X Ray Top View 16 List of Tables 1 TPS40345EVM 353 Electrical an...

Page 3: ...output voltage rating 20 A steady state load current 600 kHz switching frequency Simple access to IC features including power good enable soft start and error amplifier Convenient test points for simp...

Page 4: ...U588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 3 TPS40345EVM 353 Schematic For reference only See Table 3 for specific...

Page 5: ...5EVM 353 must be disabled via JP2 or powered down by reducing VIN to less than 3 V to remove or install JP1 4 3 Test Point Descriptions Table 2 Test Point Descriptions TEST POINT LABEL USE SECTION TP1...

Page 6: ...and TP11 The TPS40345EVM 353 provides three test points for measuring the error amplifier input and output voltages This allows the user to directly measure the feedback and control voltages of the T...

Page 7: ...of current The minimum recommended wire size is AWG 16 with the total length of wire less than 2 feet 1 foot input 1 foot return J2 to LOAD1 The connection between the source voltage VIN and J1 of TPS...

Page 8: ...PS40345EVM 353 Evaluation Module 4 Connect ammeter A1 between VIN and J1 as shown in Figure 2 5 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 2 6 Connect voltmeter V2 to TP3 and TP4 as shown...

Page 9: ...to 20 Adc 5 Vary VIN from 8 V to 14 V 6 Decrease VIN to 0 V 7 Decrease LOAD1 to 0 A 5 4 Output Ripple Voltage Measurement Procedure 1 Follow Section 5 3 steps 1 5 to set VIN and LOAD1 to the desired...

Page 10: ...be measured by the phase difference between channel A and channel B 10 Control to output response power stage transfer function can be measured by connecting channel A probe to TP10 COMP and channel B...

Page 11: ...S40345EVM 353 Test Data 11 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 6 2 Line and Load Regulation VIN 8 0V 14V...

Page 12: ...November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 6 4 Switch Node VIN 12V VOUT 1 2V IOUT 20 A Ch1 TP12 HDRV Ch2 13 TP SW Ch3...

Page 13: ...approximately 10 mV modulation of the output voltage generated when FSS is enabled Figure 10 TPS40345EVM 353 Output Ripple With FSS Enabled 7 TPS40345EVM 353 Assembly Drawings and Layout The following...

Page 14: ...ww ti com 14 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 11 TPS40345EVM 353 Component Placement Top View...

Page 15: ...s and Layout 15 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 13 TPS40345EVM 353 Top Copper Top View Figure...

Page 16: ...w ti com 16 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 15 TPS40345EVM 353 Internal 1 X Ray Top View Figu...

Page 17: ...nch ED120 2DS OST 2 JP1 JP2 PEC02SAAN Header 2 pin 100mil spacing 0 100 inch x 2 PEC02SAAN Sullins 1 L1 0 38 H Inductor SMT 35A 0 512 x 0 571 inch PG0077 401NLT Pulse 1 Q1 CSD16410Q5A MOSFET N Chan 25...

Page 18: ...o handling the product This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI a...

Page 19: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Page 20: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Page 21: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Page 22: ...OST 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...

Page 23: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

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