Texas Instruments TPS56C20, User Manual

Page 1: ... Materials and Reference 18 6 1 Schematic 18 6 2 Bill of Materials 19 6 3 Reference 19 7 Revision History 19 List of Figures Figure 3 1 USB2ANY Connection 6 Figure 3 2 TPS56X20 I2C TEST PANEL 7 Figure 3 3 EXT Power Settings 7 Figure 3 4 ALL VOUTS Control 8 Figure 4 1 TPS56C20EVM 614 Efficiency 10 Figure 4 2 TPS56C20EVM 614 Efficiency Low Current 10 Figure 4 3 TPS56C20EVM 614 Load Regulation 11 Fig...

Page 2: ...ges 5 Table 4 1 Connection and Test Points 9 Table 6 1 TPS56C20EVM 614 Bill of Materials 19 Trademarks D CAP2 is a trademark of Texas Instruments Microsoft and Windows are registered trademarks of Microsoft Corporation All trademarks are the property of their respective owners Trademarks www ti com 2 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submi...

Page 3: ...cuitry The low drain to source on resistance of the MOSFETs allows the TPS56C20 to achieve high efficiencies and helps keep the junction temperature low at high output currents The TPS56C20 DC DC synchronous converter provides up to a 12 A output from an input voltage source of 4 5 V to 17 V The output voltage range is from 0 6 V to 1 87 V The rated input voltage and output current range for the e...

Page 4: ...56C20EVM 614 and Performance Specifications Summary Parameter Test Conditions Min Typ Max Units Input voltage range VIN 4 5 12 17 V Output voltage 1 1 V Operating frequency VIN 12 V IO 12 A 500 kHz Output current range 0 12 A Over current limit VIN 12 V 13 2 20 A Output ripple voltage VIN 12 V IO 12 A 25 mVPP Performance Specification Summary www ti com 4 TPS56C20 Buck Converter Evaluation Module ...

Page 5: ...download all the software required and how to communicate between the evaluation module and the PC The design includes an easy to use GUI so that the design engineer can test the I2C functionality without much prior experience The test requires a PC running the Microsoft Windows operating system the TI USB2ANY interface and USB2ANY_GUI software The design engineer can purchase the TI USB2ANY inter...

Page 6: ... Program Files and click on the TPS56X20 I2C TEST PANEL Application The TPS56X20 I2C TEST PANEL will load as shown in Figure 3 2 Modifications www ti com 6 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 7: ...e 3 3 EXT Power Settings 3 Go to the VOUTS control block and click on the ALL VOUTS control illustrated in Figure 3 4 The drop down menu gives an option to select different VOUT www ti com Modifications SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback TPS56C20 Buck Converter Evaluation Module User s Guide 7 Copyright 2021 Texas Instruments Incorporated ...

Page 8: ...ut filter characteristics to ensure stability of the control loop The recommended output filter components for common output voltages are in Table 3 1 It may be possible for other output filter component values to provide acceptable closed loop characteristics Modifications www ti com 8 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Fee...

Page 9: ...e Designator Function J1 PVIN input voltage connector See Table 1 1 for PVIN range J2 VIN input voltage connector Not normally used J3 VOUT 1 1V at 12A maximum JP1 PVIN to VIN jumper Normally closed JP2 I2C interface pull up jumper for SDA JP3 I2C interface pull up jumper for SCL JP4 I2C interface grounding jumper for A1 JP5 I2C interface grounding jumper for A0 JP6 Enable Jumper Close to disable ...

Page 10: ... of 25 C Figure 4 1 TPS56C20EVM 614 Efficiency Figure 4 2 TPS56C20EVM 614 Efficiency Low Current Test Setup and Results www ti com 10 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 11: ... 4 5 Line Regulation Figure 4 4 shows the line regulation for the TPS56C20EVM 614 Figure 4 4 TPS56C20EVM 614 Line Regulation www ti com Test Setup and Results SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback TPS56C20 Buck Converter Evaluation Module User s Guide 11 Copyright 2021 Texas Instruments Incorporated ...

Page 12: ...riation Figure 4 5 TPS56C20EVM 614 Load Transient Response 4 7 Output Voltage Ripple Figure 4 6 shows the TPS56C20EVM 614 output voltage ripple The output current is the rated full load of 12 A Figure 4 6 TPS56C20EVM 614 Output Voltage Ripple Test Setup and Results www ti com 12 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Co...

Page 13: ...IN Figure 4 8 shows the TPS56C20EVM 614 Start Up waveform is relative to Enable EN Figure 4 8 TPS56C20EVM 614 Start Up Relative to Enable www ti com Test Setup and Results SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback TPS56C20 Buck Converter Evaluation Module User s Guide 13 Copyright 2021 Texas Instruments Incorporated ...

Page 14: ...N Figure 4 10 shows the TPS56C20EVM 614 Shut Down waveform relative to Enable EN Figure 4 10 TPS56C20EVM 614 Shut Down Relative to Enable Test Setup and Results www ti com 14 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 15: ... components as close to the IC as possible The input and output connectors test points and most of the components are located on the top side The analog ground which is used as a return for the I2C interface signals connects to the power ground at only one point on the top layer Internal layer 1 and internal layer 2 are filled with power ground The bottom layer contains a few traces like the I2C c...

Page 16: ...r Figure 5 3 Internal Layer 1 Board Layout www ti com 16 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 17: ...Layer 2 Figure 5 5 Bottom Layer www ti com Board Layout SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback TPS56C20 Buck Converter Evaluation Module User s Guide 17 Copyright 2021 Texas Instruments Incorporated ...

Page 18: ...TP7 1 2 JP5 1 2 JP4 PGND PGND 1 00k R1 VIN PGND PVIN PGND PVIN 4 5 17V PGND PGND C7 C8 PGND 1 2 J3 22k R8 51 R6 100µF C6 PGND 18 2k R7 PGND 1 2 JP2 I2C_A1 I2C_A1_PD I2C_A0 I2C_A0_PD I2C_VIN TP6 SH J5 SH J1 SH J4 SH J3 SH J2 1 5µH L1 VOUT 60V 1 87V VIN VIN 10µF C13 10µF C14 VIN 1 2 JP6 PGND PGND SH J6 VIN 1 00k R2 NOTE TPS56520 720 920 C10 2 2uF NOTE TPS56C20 C10 3 3uF 3 3µF C10 NOTE TPS56520 Wurth...

Page 19: ... 0 200 W THT 14 423 10 Brady R1 R2 2 1 00k RES 1 00k ohm 1 0 1W 0603 0603 CRCW06031K00FK EA Vishay Dale R3 R4 R5 3 10 0k RES 10 0k ohm 1 0 1W 0603 0603 CRCW060310K0FK EA Vishay Dale R6 1 51 RES 51 ohm 5 0 1W 0603 0603 CRCW060351R0JN EA Vishay Dale R7 1 18 2k RES 18 2k ohm 1 0 1W 0603 0603 CRCW060318K2FK EA Vishay Dale R8 1 22k RES 22k ohm 5 0 1W 0603 0603 CRCW060322K0JN EA Vishay Dale SH J1 SH J2 ...

Page 20: ...ures and cross references throughout the document 3 Revision History www ti com 20 TPS56C20 Buck Converter Evaluation Module User s Guide SBAU227A MARCH 2014 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 21: ...other 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 techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 22: ... 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 installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 23: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 24: ... 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 electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 25: ...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...

Page 26: ...s are subject to 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 these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you wi...