TPS53014EVM-126

www.ti.com Table of Contents User’s Guide TPS53014 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 SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction The TPS53014EVM-126 evaluation module (EVM) presents an easy-to-use reference design for a typical pointof-load application in a standalone module using the TPS53014 controller in cost-sensitive applications. 2 Description The TPS53014EVM-126 provides the user with a convenient way to evaluate the TPS53014 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 TPS53014EVM-126 is designed to demonstrate the TPS53014 in a typical point-of-load application while providing a number of test points to evaluate the performance of the TPS53014. 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 TPS53014EVM-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 Adjustable soft start Non-sinking pre-biased soft start Cycle-by-cycle overcurrent limit Overcurrent, overvoltage, undervoltage, and overtemperature protections Convenient test points for probing critical waveforms TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback www.ti.com Electrical Performance Specifications 3 Electrical Performance Specifications Table 3-1. TPS53014EVM-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 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) Output voltage ripple 1.5% VIN = 12 V, IOUT = 8 A 20 Output load current Overcurrent limit 2% 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 SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 25 kHz °C TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 3 4 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 SS TP4 VOUT PWRGND VIN 8V - 22V GND VIN VIN 0.01uF C10 1 R4 R3 SH1 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated C1 C13 TP9 GND 0.1uF 5 4 3 2 1 SS VIN EN 6 7 8 9 10 D1 BAT54XV2T1 PGND DRVL SW DRVH VBST NOT POPULATED 1 C4 VREG5 1 C2 10uF U1 TPS53014DGS 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 1000pF C12 3.01 R9 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. TPS53014EVM-126 Schematic SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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 may 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 may 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) SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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 TPS53014EVM-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. TPS53014EVM-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 TPS53014EVM-126 is equipped with a switch (S1) to drive the EN pin of the TPS53014. When S1 is in the Enable position, EN is connected to VIN, and the TPS53014 is enabled and generates a regulated 1.05-V output. When S1 is in the Disable position, EN is connected to GND, and the TPS53014 enters a high impedance output state. Default setting: Set S1 to the Disabled position to disable the controller 6 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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, A1 to measure VIN current. Vary load from 0 ADC to 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 Output of 5-V linear regulator TP4 SS Soft-start ramp voltage TP5 EN Enable pin TP6 SW Switching node TP7 VOUT Output voltage TP8 GND GND TP9 GND GND TP10 GND GND 7.3 Equipment Shutdown 1. Shut down VIN. 2. Shut down Load. 3. Shut down FAN. SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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 TPS53014EVM-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 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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) SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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) SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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 TPS53014 controller device. SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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 TPS53014EVM-126 printed circuit board. The EVM has been designed using a 4-layer, 2-ounce copper circuit board. Figure 9-1. TPS53014EVM-126 Top Layer Assembly Drawing (Top View) Figure 9-2. TPS53014EVM-126 Top Copper (Top View) 14 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback www.ti.com EVM Assembly Drawing and PCB Layout Figure 9-3. TPS53014EVM-126 Layer 2 (Top View) Figure 9-4. TPS53014EVM-126 Layer 3 (Top View) SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 15 EVM Assembly Drawing and PCB Layout www.ti.com Figure 9-5. TPS53014EVM-126 Bottom Layer (Top View) 16 TPS53014 Buck Controller Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback 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. TPS53014EVM-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 1 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 BAT54XV2T1 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 0 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 TPS53014DGS 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 * (May 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 SLUU943A – MAY 2012 – REVISED DECEMBER 2021 Submit Document Feedback TPS53014 Buck Controller Evaluation Module User's Guide 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. These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, regulatory or other requirements. These resources 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 will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources. TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated