TPS53513EVM-587

www.ti.com Table of Contents User’s Guide TPS53513 Step-Down Converter Evaluation Module User's Guide Table of Contents 1 Introduction.............................................................................................................................................................................2 2 Description.............................................................................................................................................................................. 2 2.1 Typical Applications............................................................................................................................................................2 2.2 Features............................................................................................................................................................................. 2 3 Electrical Performance Specifications................................................................................................................................. 2 4 Schematic................................................................................................................................................................................3 5 Test Setup................................................................................................................................................................................4 5.1 Test Equipment.................................................................................................................................................................. 4 5.2 Recommended Test Setup.................................................................................................................................................5 6 Configurations........................................................................................................................................................................ 6 6.1 Switching Frequency Selection.......................................................................................................................................... 6 6.2 Mode Selection.................................................................................................................................................................. 6 6.3 VDD Pin Supply Selection..................................................................................................................................................6 7 Test Procedure........................................................................................................................................................................ 7 7.1 Line/Load Regulation and Efficiency Measurement Procedure......................................................................................... 7 7.2 Control Loop Gain and Phase Measurement Procedure................................................................................................... 7 7.3 List of Test Points............................................................................................................................................................... 8 7.4 Equipment Shutdown......................................................................................................................................................... 8 8 EVM Assembly Drawing and PCB Layout............................................................................................................................ 9 9 List of Materials.....................................................................................................................................................................13 10 Revision History................................................................................................................................................................. 14 Trademarks D-CAP3™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 TPS53513 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction The TPS53513EVM-PWR587 evaluation module (EVM) uses the TPS53513 device. The TPS53513 device is a D-CAP3™ mode, 8-A synchronous buck converter with integrated MOSFETs. The device provides a fixed 1.2-V output at up to 8 A from a 12-V input bus. 2 Description The TPS53513EVM-PWR587 is designed to use a regulated 12-V bus to produce a regulated 1.2-V output at up to 8 A of load current. The TPS53513EVM-PWR587 is designed to demonstrate the TPS53513 device in a typical low voltage application while providing a number of test points to evaluate the performance of the TPS53513 device. 2.1 Typical Applications • • • Server and storage Workstations and desktops Telecommunication infrastructure 2.2 Features The TPS53513EVM- PWR587 features: • • • • • • 8-A DC steady-state output current Support pre-bias output voltage start-up J2 for enable function J5 for auto-skip and forced CCM selection J7 for extra 5-V input for further power saving purpose Convenient test points for probing critical waveforms 3 Electrical Performance Specifications Table 3-1. TPS53513EVM-PWR587 Electrical Performance Specifications(1) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Characteristic Voltage range VIN 5 Maximum input current VIN = 5 V, IO = 8 A No load input current VIN = 12 V, IO = 0 A with auto skip mode 12 18 2.5 V A 1 mA Output Characteristics Output voltage Output voltage regulation Output voltage ripple VOUT 1.2 Line regulation, VIN = 5 V – 14 V with FCCM 0.2% Load regulation, VIN = 12 V, IO = 0 A – 8 A with FCCM 0.5% VIN = 12 V, IO = 8 A with FCCM Output load current 10 0 Output over current mVPP 8 11 Soft start V A 1 mS 1000 kHz Systems Characteristics Switching frequency Peak efficiency VIN = 12 V, 1.2 V / 4 A 88.5% Full load efficiency VIN = 12 V, 1.2 V / 8 A 86.9% Operating temperature (1) 2 25 °C Jumpers set to default locations. See Section 6. TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Schematic 4 Schematic Output: 1.2 V / 0-8 A Figure 4-1. TPS53513EVM-PWR587 Schematic SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback TPS53513 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 3 Test Setup www.ti.com 5 Test Setup 5.1 Test Equipment Voltage Source: The input voltage source VIN must be a 0-V to 14-V variable DC source capable of supplying 10 ADC. Connect VIN to J1 as shown in Figure 5-2. Multimeters: • V1: VIN at TP1 (VIN) and TP4 (GND) • V2: VOUT at TP7 (VOUT) and TP9 (GND) Output Load: The output load must be an electronic constant resistance mode load capable of 15 ADC at 1.2 V. Oscilloscope: A digital or analog oscilloscope can be used to measure the output ripple. The oscilloscope should be set for the following: • • • • • 1-MΩ impedance 20-MHz bandwidth AC coupling 1-µs/div horizontal resolution 20-mV/div vertical resolution Test points TP7 and TP9 can be used to measure the output ripple voltage by placing the oscilloscope probe tip through TP7 and holding the ground barrel on TP9 as shown in Figure 5-1. Using a leaded ground connection may induce additional noise due to the large ground loop. Metal Ground Barrel Probe Tip TP7 TP9 Figure 5-1. Tip and Barrel Measurement for VOUT Ripple Recommended Wire Gauge: • VIN to J1 (12V input): The recommended wire size is 1× AWG #14 per input connection, with the total length of wire less than four feet (two feet input, two feet return). • J3 to LOAD: The minimum recommended wire size is 2× AWG #14, with the total length of wire less than four feet (two feet output, two feet return). 4 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup 5.2 Recommended Test Setup Figure 5-2. TPS53513EVM-587 Top Layer for Test Setup 5.2.1 Input Connections 1. Prior to connecting the DC input source (VIN), it is advisable to limit the source current from VIN to 10 A maximum. Make sure VIN is initially set to 0 V and connected as shown in Figure 5-2. 2. Connect a voltmeter V1 at TP1 (VIN) and TP2 (GND) to measure the input voltage. 5.2.2 Output Connections 1. Connect Load to J3 and set load to constant resistance mode to sink 0 ADC before VIN is applied. 2. Connect a voltmeter V2 at TP7 (VOUT) and TP9 (GND) to measure the output voltage. SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 TPS53513 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 5 Configurations www.ti.com 6 Configurations All jumper selections should be made prior to applying power to the EVM. The user can configure this EVM per the following configurations. 6.1 Switching Frequency Selection Switching frequency can be changed according to Table 6-1. Default setting: 1 MHz Table 6-1. Switching Frequency SWITCHING FREQUENCY (FSW)(KHZ) RESISTOR DIVIDER RATIO (RDR) 1000 850 EXAMPLE RF FREQUENCY COMBINATIONS RRF_H (kΩ) RRF_L (kΩ) > 0.557 1 300 0.461 180 154 750 0.375 200 120 600 0.297 249 105 500 0.229 240 71.5 400 0.16 249 47.5 300 0.096 255 27 250 < 0.041 270 11.5 For different switching frequency settings, change R3 and R4 according to Table 6-1. 6.2 Mode Selection The MODE can be set by J5. Default setting: FCCM Table 6-2. MODE Selection (1) JUMPERS SET TO: MODE SELECTION 1-2 pin shorted FCCM with 2× RC time constant 3-4 pin shorted Forced CCM(1) with 1× RC time constant 5-6 pin shorted Forced CCM(1) with 2× RC time constant 7-8 pin shorted Auto-Skip Mode with 2× RC time constant 9-10 pin shorted Auto-Skip Mode with 1× RC time constant Device goes into FCCM after PGOOD becomes high. 6.3 VDD Pin Supply Selection The controller can be enabled and disabled by J7. Default setting: VDD pin connected to VIN pins through R19 Table 6-3. The Controller Can Be Enabled and Disabled by J7(1) SET ON CONNECTION (1) 6 ENABLE SELECTION R19 = 0 Ω VDD pin connected to VIN pins R19 = Open VDD pin disconnected to VIN pins J7 requires the proper input voltage for power up. The VDD pin input voltage range is from 4.5 V to 25 V. TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Procedure 7 Test Procedure 7.1 Line/Load Regulation and Efficiency Measurement Procedure 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Set up the EVM as described in Section 5 and Figure 5-2. Ensure the load is set to constant resistance mode and to sink 0 ADC. Ensure all jumpers set per Section 6. Ensure the jumper provided in the EVM shorts on J2 before VIN is applied. Increase VIN from 0 V to 12 V. Using V1 to measure input voltage. Remove the jumper on J2 to enable the controller. Use V2 to measure VOUT voltage. Vary load from 0 ADC to 10 ADC, VOUT must remain in load regulation. Vary VIN from 8 V to 14 V, VOUT must remain in line regulation. Put the jumper on J2 to disable the converter. Decrease load to 0 A. Decrease VIN to 0 V. 7.2 Control Loop Gain and Phase Measurement Procedure The TPS53513EVM-PWR587 contains a 10-Ω series resistor in the feedback loop for loop response analysis. 1. Set up the EVM as described in Section 5 and Figure 5-2. 2. Connect the isolation transformer to test points marked TP5 and TP8. 3. Connect input signal amplitude measurement probe (channel A) to TP10. Connect the output signal amplitude measurement probe (channel B) to TP11. 4. Connect ground lead of channel A and channel B to TP15. 5. Inject around 20-mV or less signal through the isolation transformer. 6. Sweep the frequency from 100 Hz to 1 MHz with 10 Hz or lower post filter. The control loop gain and phase margin can be measured. 7. Disconnect the isolation transformer from bode plot test points before making other measurements (signal injection into feedback may interfere with accuracy of other measurements). SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 TPS53513 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 7 Test Procedure www.ti.com 7.3 List of Test Points Table 7-1. Test Point Functions TEST POINTS NAME DESCRIPTION TP1 VIN Converter input supply voltage TP2 VREG LDO voltage TP3 PGood Power good output TP4 PGND Power ground TP5 CHB Input B for loop injection TP6 SW Switching node TP7 VOUT VOUT terminal + TP8 CHA Input A for loop injection TP9 PGND Power ground TP10 RF RF pin TP11 TRIP TRIP pin TP12 EN Enable pin TP13 VDD VDD pin TP14 MODE Mode pin TP15 AGND Analog ground 7.4 Equipment Shutdown 1. Shut down load 2. Shut down VIN 8 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com EVM Assembly Drawing and PCB Layout 8 EVM Assembly Drawing and PCB Layout The following figures (Figure 8-1 through Figure 8-8) show the design of the TPS53513EVM-PWR587 printed circuit board. The EVM has been designed using 4 Layers, 2-oz copper circuit board. Figure 8-1. TPS53513EVM-587 Top Layer Assembly Drawing Figure 8-2. TPS53513EVM-587 Bottom Assembly Drawing SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 TPS53513 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 9 EVM Assembly Drawing and PCB Layout www.ti.com Figure 8-3. TPS53513EVM-587 Top Copper Figure 8-4. TPS53513EVM-587 Layer 2 Copper 10 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com EVM Assembly Drawing and PCB Layout Figure 8-5. TPS53513EVM-587 Layer 3 Copper Figure 8-6. TPS53513EVM-587 Layer 4 Copper SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 TPS53513 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 11 EVM Assembly Drawing and PCB Layout www.ti.com Figure 8-7. TPS53513EVM-587 Layer 5 Copper Figure 8-8. TPS53513EVM-587 Bottom Layer Copper 12 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com List of Materials 9 List of Materials The EVM components list according to the schematic shown in Figure 4-1. Table 9-1. TPS53313EVM-078 List of Materials DESIGNATOR C1–C4 QTY VALUE DESCRIPTION PACKAGE REF. PART NUMBER MANUFACTURER 4 22 μF Capacitor, Ceramic, 25 V, X5R, 10% 1206 GRM31CR61E226KE15L Murata C5 1 0.1 μF CAP CER 0.1 μF 25 V 10% X5R 0402 0402 GRM155R61E104KA87D Murata C6, C10–C14, C19, C21–C23 10 22 μF Capacitor, Ceramic, 6.3 V, X5R, 20% 1206 GRM31CR60J226KE19L Murata C7 1 0.1 μF CAP CER 0.1 μF 50 V 10% X7R 0603 0603 GRM188R71H104KA93D Murata C8 1 470 pF CAP CER 470 pF 50 V 10% X7R 0603 0603 GRM188R71H471KA01D Murata C9, C17 0 Open Capacitor, Ceramic, 50 V, X7R, 10% 0603 Std Std C15, C16, C24, C27 0 Open Capacitor, POSCAP, SMT, 2.5 V, 330 μF, 8 mΩ 7343(D) 2R5TPE330M9 or 6TPE330MIL Sanyo C18, C20, C25, C26 4 1 μF CAP CER 1 μF 16 V 10% X7R 0603 0603 GRM188R71C105KA12J Murata FID1–FID6 0 Fiducial mark. There is nothing to buy or mount. Fiducial N/A N/A J1, J3 2 ED120/2DS Terminal Block, 2-pin, 15 A, 5.1 mm 0.40 × 0.35 inch ED120/2DS OST J2 1 PEC02SAAN Header, Male 2-pin, 100mil spacing, 0.100 inch × 2 PEC02SAAN Sullins J4–J6 3 PEC05DAAN Header, Male 2 × 5-pin, 100mil spacing 0.100 inch × 5 × 2 PEC05DAAN Sullins J7 1 ED555/2DS Terminal Block, 2-pin, 6 A, 3.5 mm 0.27 × 0.25 inch ED555/2DS OST L1 1 1.0 μH Inductor, Power Chokes SMD 6.6 × 7.1 mm PIMB065T-1R0MS Cyntec L1A 0 DNP Inductor, High Frequency Power, ±15% 0.283 × 0.433 inch 69P987xN Vitec LBL1 1 Thermal Transfer Printable Labels, 0.650" W × 0.200" H - 10,000 per roll PCB Label 0.650"H × 0.200"W THT-14-423-10 Brady R1, R2 2 100 k RES, 100 k Ω, 1%, 0.1W, 0603 0603 CRCW0603100KFKEA Vishay-Dale R3 1 1.00 k RES, 1.00 k Ω, 1%, 0.1 W, 0603 0603 CRCW06031K00FKEA Vishay-Dale R4 1 300 k RES, 300 k Ω, 1%, 0.1 W, 0603 0603 RC0603FR-07300KL Yageo America R5, R8, R14, R15, R19 5 0 RES, 0 Ω, 5%, 0.1W, 0603 0603 CRCW06030000Z0EA Vishay-Dale R6 1 200 k RES, 200 k Ω, 1%, 0.1 W, 0603 0603 CRCW0603200KFKEA Vishay-Dale R7 0 Open Resistor, Chip, 1/16W, 1% 0603 Std Std R9 1 3.01 RES, 3.01 Ω, 1%, 0.125W, 0805 0805 CRCW08053R01FKEA Vishay-Dale R10 1 39.2 k RES, 39.2 k Ω, 1%, 0.1W, 0603 0603 RC0603FR-0739K2L Yageo America R11 1 20.0 k RES, 20.0 k Ω, 1%, 0.1W, 0603 0603 CRCW060320K0FKEA Vishay-Dale R12, R13 2 150 k RES, 150 k Ω, 1%, 0.1 W, 0603 0603 CRCW0603150KFKEA Vishay-Dale R16 1 1 RES, 1.00 Ω, 1%, 0.1 W, 0603 0603 CRCW06031R00FKEA Vishay-Dale R20, R21 2 10.0 k RES, 10.0 k Ω, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale R22 1 10 RES, 10.0 Ω, 1%, 0.1 W, 0603 0603 CRCW060310R0FKEA Vishay-Dale TP1–TP3, TP5–TP8, TP10–TP15 13 5000 Test Point, Red, Thru Hole Color Keyed 0.100 × 0.100 inch 5000 Keystone TP4, TP9 2 5001 Test Point, Black, Thru Hole Color Keyed 0.100 × 0.100 inch 5001 Keystone U1 1 TPS53513RVE IC, High Performance, 8-A Single Sync. Step-Down Converter SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback TPS53513RVE TPS53513 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 13 Revision History www.ti.com 10 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (February 2014) to Revision C (November 2021) Page • Changed user's guide title.................................................................................................................................. 2 • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 • Edited user's guide for clarity..............................................................................................................................2 Changes from Revision A (December 2013) to Revision B (February 2014) Page • Changed the test points in Figure 5-1 from TPS5 and TPS7 to TPS7 and TPS9 (respectively from left to right) ............................................................................................................................................................................4 14 TPS53513 Step-Down Converter Evaluation Module User's Guide SLUUAQ0C – OCTOBER 2013 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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