TPS53015EVM-126

www.ti.com Table of Contents User’s Guide TPS53015 Buck Controller 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................................................................................................................................. 3 4 Schematic................................................................................................................................................................................4 5 Test Setup................................................................................................................................................................................5 5.1 Test Equipment.................................................................................................................................................................. 5 5.2 Recommended Test Setup.................................................................................................................................................6 6 Configurations........................................................................................................................................................................ 6 6.1 Enable/Disable Switch S1.................................................................................................................................................. 6 7 Test Procedure........................................................................................................................................................................ 7 7.1 Line/Load Regulation and Efficiency Measurement Procedure......................................................................................... 7 7.2 List of Test Points............................................................................................................................................................... 7 7.3 Equipment Shutdown......................................................................................................................................................... 7 8 Performance Data and Typical Characteristic Curves........................................................................................................ 8 8.1 Efficiency............................................................................................................................................................................8 8.2 Load Regulation................................................................................................................................................................. 8 8.3 Line Regulation.................................................................................................................................................................. 9 8.4 Load Transient................................................................................................................................................................... 9 8.5 Output Ripple................................................................................................................................................................... 10 8.6 Switching Node.................................................................................................................................................................11 8.7 Enable Start-Up................................................................................................................................................................12 8.8 Disable............................................................................................................................................................................. 12 8.9 Thermal Image................................................................................................................................................................. 13 9 EVM Assembly Drawing and PCB Layout.......................................................................................................................... 14 10 List of Materials.................................................................................................................................................................. 17 11 Revision History..................................................................................................................................................................17 Trademarks D-CAP2™ is a trademark of Texas Instruments. Eco-mode™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction The TPS53015EVM-126 evaluation module (EVM) presents an easy-to-use reference design for a typical pointof-load application in a standalone module using the TPS53015 controller in cost-sensitive applications. 2 Description The TPS53015EVM-126 provides the user with a convenient way to evaluate the TPS53015 D-CAP2™ mode control in a cost-sensitive application. Providing a 1.05-V output at up to 8 A from a loosely regulated 12-V (8 V–22 V) source, the TPS53015EVM-126 is designed to demonstrate the TPS53015 in a typical point-of-load application while providing a number of test points to evaluate the performance of the TPS53015. 2.1 Typical Applications • Point-of-load regulations in low-power systems for a wide range of applications – Digital TV power supply – Network home terminals – Digital set top box (STB) – DVD player/recorder – Game consoles and others 2.2 Features The TPS53015EVM-126 features: • • • • • • • • 2 D-CAP2™ Mode Control – Fast Transient Response – No External Parts Required For Loop Compensation – Compatible with Ceramic Output Capacitors Auto-Skip Eco-mode™ for High Efficiency at Light load 500-kHz switching frequency Power Good Indication Non-Sinking Pre-Biased Soft Start Cycle-by-Cycle Over-Current Limit Over-current, over-voltage, under-voltage and over-temperature protections Convenient test points for probing critical waveforms TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Electrical Performance Specifications 3 Electrical Performance Specifications Table 3-1. TPS53015EVM-126 Electrical Performance Specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Characteristics Voltage range VIN 8.0 12 22 V Maximum input current VIN = 12 V, IOUT = 8 A 0.9 A No load input current VIN = 12 V, IOUT = 0 A 0.6 mA 1.05 V Output Characteristics Output voltage Output voltage regulation Output voltage ripple Setpoint accuracy (VIN = 12 V, IOUT = 8 A) 2% Line regulation (VIN = 8.0 V–22 V, IOUT = 8 A) 1% Load regulation (VIN = 12 V, IOUT = 0 A – 8 A) 1.5% VIN = 12 V, IOUT = 8 A Output load current Over current limit –2% 20 0 VIN = 12 V mVpp 8.0 A 11 Systems Characteristics Switching frequency 500 Peak efficiency VIN = 12 V, IOUT = 3.2 A 86.5% Full load efficiency VIN = 12 V, IOUT = 8.0 A 81.4% Operating temperature 25 kHz °C SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 3 4 TPS53015 Buck Controller Evaluation Module User's Guide Disable (Default) Enable VIN 1.00k R8 1.00k R6 6 4 5 1 2 4.7uF C11 140 R11 J1 VREG5 TP3 AGND EN TP5 S1 SW_G12AP Enable Circuitry PG TP4 VOUT PWRGND VIN 8V - 22V GND VIN VIN 1 C10 R4 R3 SH1 C1 TP9 GND 0.1uF C13 5 4 3 2 1 PG VIN EN 6 7 8 9 10 D1 BAT54XV2T1 PGND DRVL SW DRVH VBST NOT POPULATED 1 C4 VREG5 1 C2 10uF U1 TPS53015DGS VFB 10uF Notes: 23.7k 8.66k R1 TP2 GND VIN TP1 C3 2.05 R7 5.11 R5 10uF 15.4k R10 C5 G S D G S Q2 D CSD17507Q5A 0.1uF 10.0 R2 TP10 R9 1000pF C12 3.01 SW TP6 Q1 CSD17507Q5A 1.5uH L1 22uF C6 22uF C7 1 C8 1 C9 TP8 GND VOUT TP7 GND VOUT 1.05V/8A J2 PWRGND 1 2 VOUT Schematic www.ti.com 4 Schematic Figure 4-1. TPS53015EVM-126 Schematic SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup 5 Test Setup 5.1 Test Equipment Voltage Source: • VIN: The input voltage source, VIN, should be a 0-V to 30-V variable DC source capable of supplying 2 ADC. Connect VIN to J1 as shown in Figure 5-2. Multimeters: • V1: VIN at TP1 (VIN) and TP2 (GND), 0-V to 30-V voltmeter • V2: VOUT at TP7 (VOUT) and TP8 (GND) • A1: VIN input current, 0 ADC to 2 ADC Ammeter Output Load: The output load should be an electronic constant resistance mode load capable of 0 ADC to 8 ADC at 1.05 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/division horizontal resolution • 50-mV/division vertical resolution Test points TP7 and TP8 can be used to measure the output ripple voltage by placing the oscilloscope probe tip through TP7 and holding the ground barrel on TP8 as shown in Figure 5-1. Using a leaded ground connection can induce additional noise due to the large ground loop. TP7 TP8 Figure 5-1. Tip and Barrel Measurement for VOUT Ripple Fan: Some of the components in this EVM can approach temperatures of 85°C during operation. A small fan capable of 200 LFM to 400 LFM is recommended to reduce component temperatures while the EVM is operating. The EVM should not be probed while the fan is not running. Recommended Wire Gauge: • VIN to J1: The recommended wire size is 1x AWG #16 per input connection, with the total length of wire less than four feet (2-feet input, 2-feet return). • J2 to LOAD: The minimum recommended wire size is 1x AWG #16, with the total length of wire less than four feet (2-feet output, 2-feet return) SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 5 Test Setup www.ti.com 5.2 Recommended Test Setup Figure 5-2 is the recommended test setup to evaluate the TPS53015EVM-126. Working at an ESD workstation, make sure that any wrist straps, bootstraps, or mats are connected referencing the user to earth ground before power is applied to the EVM. Figure 5-2. TPS53015EVM-126 Recommended Test Setup Input Connections: • Prior to connecting the DC input source VIN, it is advisable to limit the source current from VIN to 2-A maximum. Make sure VIN is initially set to 0 V and connected to J2 as shown in Figure 5-2. • Connect a current meter A1 between VIN and J1 to measure the input current. • Connect a voltmeter V1 at TP1 (VIN) and TP2 (GND) to measure the input voltage. Output Connections: • Connect Load to J2 and set load to constant resistance mode to sink 0 ADC before VIN is applied. • Connect a voltmeter V2 at TP7 (VOUT) and TP8 (GND) to measure the output voltage. Other Connections: Place a fan as shown in Figure 5-2 and turn on, making sure air is flowing across the EVM. 6 Configurations 6.1 Enable/Disable Switch S1 The TPS53015EVM-126 is equipped with a switch (S1) to drive the EN pin of the TPS53015. When S1 is in the Enable position, EN is connected to VIN, and the TPS53015 is enabled and generates a regulated 1.05-V output. When S1 is in the Disable position, EN is connected to GND, and the TPS53015 enters a high impedance output state. Default setting: Set S1 to the Disabled position to disable the controller. 6 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 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. Set up the EVM as described in Section 5 and Figure 5-2. Ensure Load is set to constant resistance mode and to sink 0 ADC. Ensure the switch S1 is set per Section 6. Increase VIN from 0 V to 12 V. Using V1 to measure VIN voltage. Set the switch S1 to Enable position to enable the controller. Use V2 to measure VOUT voltage and A1 to measure VIN current. Vary load from 0 A–8 ADC. VOUT should remain in load regulation. Vary VIN from 8.0 V to 22 V. VOUT should remain in line regulation. Set the switch S1 to Disable position to disable the controller. Decrease load to 0 A. Decrease VIN to 0 V. 7.2 List of Test Points Table 7-1. Test Point Functions TEST POINTS NAME TP1 VIN Input voltage DESCRIPTION TP2 GND GND TP3 VREG5 TP4 PG Power good TP5 EN Enable pin TP6 SW Switching node TP7 VOUT Output voltage TP8 GND GND TP9 GND GND TP10 GND GND Output of 5-V linear regulator 7.3 Equipment Shutdown 1. Shut down VIN. 2. Shut down Load. 3. Shut down FAN. SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 7 Performance Data and Typical Characteristic Curves www.ti.com 8 Performance Data and Typical Characteristic Curves Figure 8-1 through Figure 8-11 present typical performance curves for TPS53015EVM-126. 8.1 Efficiency 100 90 Efficiency - % 80 70 60 50 40 VIN = 8 V 30 20 VIN = 12 V 10 VIN = 22 V 0 0.001 0.010 0.100 1.000 10.000 ILOAD - Load Current - A Figure 8-1. Efficiency 8.2 Load Regulation VOUT - Output Voltage - V 1.1 1.08 1.06 VIN = 8 V 1.04 VIN = 12 V 1.02 VIN = 22 V 1 0.001 0.010 0.100 1.000 10.000 ILOAD - Load Current - A Figure 8-2. Load Regulation 8 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 8.3 Line Regulation 1.1 VOUT - Output Voltage - V 1.08 1.06 1.04 1.02 IOUT = 8 A 1 8 10 12 14 16 18 20 22 VIN - Input Voltage - V Figure 8-3. Line Regulation 8.4 Load Transient Figure 8-4. Output Load 0-A to 8-A Transient (12-V VIN, 1.05-V VOUT) SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 9 Performance Data and Typical Characteristic Curves www.ti.com 8.5 Output Ripple Figure 8-5. Output Ripple at No Load (12-V VIN, 1.05-V VOUT, 0 A) Figure 8-6. Output Ripple at Full Load (12-V VIN, 1.05-V VOUT, 8 A) 10 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 8.6 Switching Node Figure 8-7. Switching Node at No Load (12-V VIN, 1.05-V VOUT, 0 A) Figure 8-8. Switching Node at Full Load (12-V VIN, 1.05-V VOUT, 8 A) SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 11 Performance Data and Typical Characteristic Curves www.ti.com 8.7 Enable Start-Up Figure 8-9. Start-Up Waveform (12-V VIN, 1.05-V VOUT, 8-A IOUT) 8.8 Disable Figure 8-10. Shutdown Waveform (12-V VIN, 1.05-V VOUT, 8-A IOUT) 12 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 8.9 Thermal Image Figure 8-11. Thermal Image (22-V VIN, 1.05-V VOUT, 8-A IOUT, no Air Flow) Note The hottest spot is the surface of snubber resistor and power MOSFET, not the surface of TPS53015 controller device. SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 13 EVM Assembly Drawing and PCB Layout www.ti.com 9 EVM Assembly Drawing and PCB Layout The following figures (Figure 9-1 through Figure 9-5) show the design of the TPS53015EVM-126 printed circuit board. The EVM has been designed using a 4-layer, 2-ounce copper circuit board. Figure 9-1. TPS53015EVM-126 Top Layer Assembly Drawing (Top View) Figure 9-2. TPS53015EVM-126 Top Copper (Top View) 14 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com EVM Assembly Drawing and PCB Layout Figure 9-3. TPS53015EVM-126 Layer 2 (Top View) Figure 9-4. TPS53015EVM-126 Layer 3 (Top View) SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 15 EVM Assembly Drawing and PCB Layout www.ti.com Figure 9-5. TPS53015EVM-126 Bottom Layer (Top View) 16 TPS53015 Buck Controller Evaluation Module User's Guide SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com List of Materials 10 List of Materials The EVM components list according to the schematic shown in Figure 4-1. Table 10-1. TPS53015EVM-126 List of Materials QTY DESCRIPTION PART NUMBER MFR 3 C1, C2, C3 Capacitor, ceramic, 35 V, X5R, 20%, 10 µF, 1210 Std Std 0 C4 Capacitor, ceramic, 35 V, X7R, 10%, 1 µF, 0603 Std Std 1 C5 Capacitor, ceramic, 10 V, X7R, 10%, 0.1 µF, 0603 Std Std 2 C6, C7 Capacitor, ceramic, 10 V, X5R, 20%, 22 µF, 1206 Std Std 0 C8, C9 Capacitor, ceramic, 10 V, X5R, 20%, 22 µF, 1206 Std Std 0 C10 Capacitor, ceramic, 10 V, X7R, 10%, 0.01 µF, 0603 Std Std 1 C11 Capacitor, ceramic, 10 V, X7R, 10%, 4.7 µF, 0603 Std Std 1 C12 Capacitor, ceramic, 50 V, X7R, 10%, 1000 pF, 0603 Std Std 1 C13 Capacitor, ceramic, 50 V, X7R, 10%, 0.1 µF, 0603 Std Std 1 D1 Diode, Schottky, 10 mA, 30 V, SOD523 BAT54XV2T1G On Semi 2 J1, J2 Connector, 15 A, 300 V, male 2 pole, 5.08 mm, 9 mm × 12 mm ED120/2DS On Shore Tech 1 L1 Inductor, 11 A, 6 mΩ, ±20%, 1.5 µH, 6.6 mm × 7 mm PCMB065T-1R5MS Cyntec MOSFET, N-channel, 30 V, 13 A, 11.8 mΩ, SON, 5 mm × 6 mm CSD17507Q5A MOSFET, N-channel, 30 V, 14 A, 9.0 mΩ, SON, 5 mm × 6 mm CSD17551Q5A 2 (1) REF DES Q1, Q2(1) TI 1 R1 Resistor, chip, 1/10 W, 1%, 8.66 kΩ, 0603 Std Std 1 R2 Resistor, chip, 1/10 W, 1%, 10.0 Ω, 0603 Std Std 1 R3 Resistor, Chip, 1/10 W, 1%, 23.7 kΩ, 0603 Std Std 1 R4 Resistor, chip, 1/10 W, 1%, 100 kΩ, 0603 Std Std 1 R5 Resistor, chip, 1/10 W, 1%, 5.11 Ω, 0603 Std Std 2 R6, R8 Resistor, chip, 1/10 W, 1%, 1.00 kΩ, 0603 Std Std 1 R7 Resistor, chip, 1/10 W, 1%, 2.05 Ω, 0603 Std Std 1 R9 Resistor, chip, 1/4 W, 1%, 3.01 Ω, 0805 Std Std 1 R10 Resistor, chip, 1/10 W, 1%, 15.4 kΩ, 0603 Std Std 1 R11 Resistor, chip, 1/10 W, 1%, 140 Ω, 0603 Std Std 1 S1 Switch, on-none-on, 0.28 inch × 0.18 inch G12AP-RO NKK 4 TP1, TP3, TP6, TP7 Test point, red, thru hole, 0.125 inch × 0.125 inch 5010 Keystone 4 TP2, TP8, TP9, TP10 Test point, black, thru hole, 0.125 inch × 0.125 inch 5011 Keystone 2 TP4, TP5 Test point, white, thru hole, 0.125 inch × 0.125 inch 5012 Keystone 1 U1 IC, Single Synchronous Step-Down Controller, VSSOP TPS53015DGS TI 1 -- PCB, 2.4 inch × 1.5 inch × 0.062 inch PWR126 TI The CSD17551Q5A can be used as alternate part to the CSD17507Q5A. 11 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (June 2012) to Revision A (December 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 • Updated the user's guide title............................................................................................................................. 2 • Edited user's guide for clarity..............................................................................................................................2 SLUU944A – JUNE 2012 – REVISED DECEMBER 2021 TPS53015 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 17 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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