WEBENCH ® Power Designer Howard Chen Applications Engineer March 22, 2016

Power Designer – Navigation & Basic Features Power Designer – Advanced Features Intro to Power Architect Objectives WEBENCH ® Overview

WEBENCH ® Tools Power Designer Power supply and system power architecture LED driver design and LED architecture Sensor analog front end design Filter design and simulation Clock tree builder and simulation LED Designer Sensor Designer Active Filter Designer Clock Architect Inductive sensing applications LDC Designer

WEBENCH ® Design Center Home Page 4

DEMO Accessing Tools (Battery Management, LEDs, Filters, etc.) 5

14 Years of Modeling and Verification Offline Past Trial and Error 1999 Online WEBENCH ® Design Tools Faster & More Effective New Capabilities Agile Designs 2009 Visualizer 2010 FPGA Power Architect Agile Systems 2012 Export To CAD Tools Immediate Integration 2014 Edit Total Customization

7 WEBENCH ® tools: Start to finish design and prototype 2. Create a design Conduct electrical analysis WEBENCH Esim Generate layout/ thermal analysis WebTHERM 3. Analyze a design Select solution WEBENCH Visualizer WEBENCH Optimizer Optimize for footprint, price and efficiency; use graphs to see design Enter specifications 1. Choose a part WEBENCH Create View schematic, change BOM and view key operating values Design prototype WEBENCH Export 5. BuildIt! 4. Edit Change schematic/ electrical analysis WEBENCH Editor

Power Designer Basics Creating Designs, Visualizer, Design Dashboard, Optimization, Simulations, Export, Design Report, and Sharing Designs 8

Ways to Access WEBENCH ® Designer Use the entry panel on: Select the specific tool –Power Power Architect Start Design –FPGA/µP –Sensors –LED

Distributor Branded Pages – ti.com/arrow 10

11 WEBENCH ® Visualizer- Calculates Dozens of Designs in Seconds Recommended Solutions

Design Dashboard – Access to Features Dashboard 1)Graphs 2)Schematic 3)Optimization 4)Operating values 5)BOM 6)Reporting Op Vals Charts Schematic Optimization/ WebTHERM Build It ®, Report, Export, Edit BOM/Change Components Op Vals Inputs Optimization Simulation

WEBENCH ® Optimizer - Dial In Your Solution! 13

WEBENCH ® Optimizer Dial “Dial In Your Solution”

15 WEBENCH ® Design Optimization Optimization Setting Frequency Component Selection Summary 1 – Smallest footprint Highest Smallest footprint Don’t care about cost Smallest size but lowest efficiency 2 – Lowest cost High Lowest cost High frequency means smaller / cheaper components 3 – Balanced Medium In stock Low cost Balanced approach using IC’s middle frequency 4 – High efficiency Low Low DCR, ESR, Vf Low cost Higher efficiency, with low cost but larger parts 5 – Highest efficiency Lowest Low DCR, ESR, Vf Don’t care about cost Highest efficiency but largest parts

16 Electrical Simulation Specify sim Type Bode Plot Line Transient Load Transient Startup Steady State Click start to initiate sim Esim page Waveform viewer Click to view waveforms

17 WebTHERM ® – Board Layout & Results Thermal Sim Page PC Board Results

WEBENCH Export Supports both Schematic and Board Layout 18 Click Export button Board Export Enabled Devices

WEBENCH ® Schematic Directly to CAD Tool 19 WEBENCH schematic Exported schematic to CAD tool Exported board to CAD tool WEBENCH PC board

WEBENCH ® Exports Directly to Spice Tool 20 WEBENCH simulation TinaTI simulation

Complete design reporting … automatically! 21

Share A Design or Project With Team Members 22 Click on Share Design or Share Project button

POWER DESIGNER BASICS EXAMPLE LM46002 Design 23

Adv. Power Designer Features Advanced Visualizer, Compensation Designer, Schematic Edit, WebTHERM 24

Advanced Design Options in WEBENCH Visualizer 25 Specify advanced design constraints and parameters before the design is created

Advanced Options 26 Options include: Frequency Softstart time Vout ripple Post ripple filter Light load capability Control mode Minimum package size Max component height Ceramic caps Use only components in stock Etc.

Edit copper in WT Click Create New Simulation - Use This Model Click Edit Thermal Simulation Copper Model 27

Edit copper in WT Reduce the copper area and/or add vias using the editor Change layers using the tabs at the bottom 28 Don't forget to save your work when exiting

WEBENCH Automatic Recompensation 29 2) Set target and min/max specifications for: -Phase Margin -Crossover -Low Frequency Gain 5) View and compare results. Then save to design. 3) Set min/max limits for compensation components 4) Click button and view new component values 1) Click Re-Comp Button

Schematic Edit 30 Click to Edit this Design

Start With An Optimized WEBENCH Design 31

Things You Can Add Using WEBENCH Schematic Editor 32 Board parasitics

Things You Can Add Using WEBENCH Schematic Editor 33 Snubber Board parasitics

Things You Can Add Using WEBENCH Schematic Editor 34 Snubber Board parasitics Mixed output capacitors (1 aluminum, 1 ceramic)

Things You Can Add Using WEBENCH Schematic Editor 35 Snubber Board parasitics Mixed output capacitors (1 aluminum, 1 ceramic) Filter

ADV. DESIGNER BASICS EXAMPLE LM5117 Design 36

Fly-Buck Designs in WEBENCH 37

Fly-Buck Topology Evolved from a synchronous buck converter by adding coupled windings to the inductor for flyback-like isolated outputs Primary side output voltage available to provide power to loads not requiring isolation from the input voltage Fewer components and smaller solution size compared to flyback designs Great for low power DC-DC applications that require isolation 38

The Isolated Buck Converter 39 Solutions can have any number of positive or negative isolated output voltages, depending on transformer specs

The Fly-Buck Converter 40 Added Components: 1)Transformer 2)Output Diode and Cap 3)Ripple Injection circuit

Fly-Buck Converter Operation When Switch 1 (Q1) is on & Switch 2 (Q2) is off: –Current in the secondary winding is 0 –Current in the primary winding is the same as the magnetizing current 41

Fly-Buck Converter Operation When Switch 2 (Q2) is on & Switch 1 (Q1) is off: –Current flowing through secondary winding is dependent on Cout1, Cout2, and the leakage inductance of the transformer –Current flowing through the primary winding is the magnetizing current PLUS the reflected current from the secondary winding. 42

Fly-Buck Current Waveforms 43

Stability using COT Control Not all control schemes are suitable Constant On-Time Control –Simple design –No compensation required –Variable Frequency Control –Type 3 Ripple Generation 44

Fly-Buck Devices supported in WEBENCH 9 Fly-Buck devices supported in WEBENCH –LM5017/LM5018/LM5019 Wide Vin Range: 7.5 V – 100 V Max load current: 600 mA/300 mA/100 mA –LM25017/LM25018/LM25019 Wide Vin Range: 7.5 V – 48 V Max load current: 650 mA/325 mA/100 mA –LM5160, LM5160A Wide Vin Range: 4.5 V – 65 V Max load current: 1.5 A –TPS55010 Vin Range: 2.95 V – 6 V Max load current: 0.4 A 45

FLY-BUCK DESIGN EXAMPLE LM5017 and LM5160 Designs 46

Intro to Power Architect 47

48 Design This Power Supply in Seconds? Many Loads, Many Supplies Core Supply FPGA IO CCD Motor 9 Loads and 5 Voltages

WEBENCH ® FPGA Power Architect Add FPGA Select Device From List Configure Loads 49

50 Get FPGA Load Current From Vendor Estimation Spreadsheet: Altera 50 Spreadsheet calculates the current

51 Get FPGA Load Current From Vendor Estimation Spreadsheet: Xilinx 51 Spreadsheet calculates the current

52 Update Load Current Into Preconfigured FPGA Loads Template 52 Voltage, Current, and Special Requirements Included For: Max Voltage Ripple Isolated Supplies Soft Start Post Supply Filters LDO Preferred Add All Of Your Own Additional System Loads Next

53 Each Architecture Is Tuned With The WEBENCH ® Optimizer, Now For Systems Optimizer Dial System Efficiency 94%76% Size Relative System Cost

54 Analyze Performance, Cost and Footprint for Selected Architecture Click on Each Supply To Display Detail Go

Advanced Tools Are Available For Further Exploration Power Topology Bill of Materials Optimization Graphs Charts & Design Reports Drive Circuits Simulation Prototyping System Op Vals Optimizer Share Design System Summary 55

POWER ARCHITECT EXAMPLE Demo Design 56

WEBENCH Power Designer 57 WEBENCH circuit calculation Complete design including schematic and BOM Component selection based on library of >40,000 passives with inventory and pricing updates WEBENCH Design Tools save you time End to End design solutions On line selection, simulation and prototyping Dynamic design optimization based on size, cost, efficiency Electrical simulation for dynamic design behavior Thermal simulation including component co-heating Export schematic and PC Board to CAD tools

Q&A 58

WEBENCH ® Tool Industry Awards 2014 Best in Test & Design Award DesignCon 2015 –WEBENCH PCB Export 2013 Design News Golden Mousetrap Award –WEBENCH Schematic Export 2012 Design News Golden Mousetrap Award –WEBENCH System Power Architect 2011 EDN “Innovation of the Year” –WEBENCH FPGA Power Architect 2010 Electronic Design “Year’s Best - Power” –WEBENCH LED Architect 2010 EDN “Innovation of the Year” –WEBENCH Visualizer 2009 EDN “Innovation of the Year” –WEBENCH Power/LED Designer 2008 Electronic Products “Product of the Year” –WEBENCH Sensor Designer 2006 IEC “DesignVision” Award –WEBENCH Designer 2005 EDN “Innovation of the Year” –WEBENCH Active Filter Designer 2001 EDN “Innovation of the Year” –WEBENCH Electronic Products “Product of the Year” –WEBENCH