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WEBENCH® Power Designer & TI Power Products Making Power Supply Design Easier Sameer Mylavarapu
Software Engineer – WEBENCH® Design Center
Mike Segal
TI Field Applications Engineer for Power
1
WEBENCH® Power Designer Making Power Supply Design Easier
Sameer Mylavarapu
Software Engineer – WEBENCH® Design Center
2
Agenda: WEBENCH® Power Designer
• History and overview of WEBENCH Tools
• Portfolio of devices and topologies in the WEBENCH tool suite
• WEBENCH design flow
• WEBENCH Power Designer features
– Visualizer
– Optimizer
– Electrical and thermal simulation
– Schematic, board, and simulation export to other tools
– WEBENCH Build It
• Demo - Power supply design using WEBENCH Power Designer
• WEBENCH® Training and Support – additional resources
3
History - 15 Years of Modeling and Verification
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Start to Finish Design and Prototype
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Ways to Access WEBENCH® Designer
• Use the entry panel on:
http://www.ti.com
• Select the specific tool – Power
• Power Architect
• Start Design
– FPGA/µP
– Sensors
– LED
6
Ways to Access WEBENCH® Designer
OR
• Go to the
product folder
for a specific
part
• Enter your
specifications
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WEBENCH® Power Designer - Features
Visualizer
Visualize tradeoffs across dozens of solutions for
power supply requirement
Optimize designs for small footprint, low cost and
high efficiency
Do electrical and thermal simulation to
characterize dynamic circuit behavior
Optimizer
Simulation
Edit the schematic and run Spice simulations Edit
Export your design to popular CAD tools and get
prototype kits Export/Build It
Create and optimize system level supplies for
FPGAs, processors and custom loads Architects
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WEBENCH® Visualizer - Calculates Dozens of Designs in Seconds
Charts
Recommended
Solutions
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WEBENCH® Visualizer – Advanced Charting
WEBENCH® Visualizer
84% 86% 88% 90% 92% 94% 96%
1000
900
800
700
600
500
400
300
200
Higher efficiency
BOM price
Sm
aller
foo
tpri
nt
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WEBENCH® Optimizer - Dial In Your Solution!
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Key Optimization Parameters Graphed
Power dissipation
by component
Frequency
IC temperature
Footprint
efficiency
BOM cost
Optimize page
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Continue to Improve Your Design: View and Change Your Bill of Materials
Click “Select Alternate Part” to change a component
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• Design has been configured for stable operation
BUT
• May want to verify under dynamic conditions
• Improve line/load transient response
• Minimize output voltage ripple
• Modify control loop
• Interactive waveform viewer allows detailed analysis
of results
Why Do Electrical Simulation?
Visualize
Results
Try
Solutions
Identify
Problems
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WEBENCH® Electrical Simulation
Specify sim
type
Click start to
initiate sim
•Bode plot
•Line transient
•Load
Transient
•Startup
•Steady state
Esim page
Waveform viewer
Click to view waveforms 15
Waveform Viewer
Click on a tile to add a
waveform
Click and drag down and
to the right to zoom in
Click and drag up and to
the left to zoom out
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• Co-heating of parts not accounted for with ThetaJA
• Change copper thickness, airflow, ambient
temperature, voltage, current
• Color temperature plot across the board
• Adjustable scaling
Why Do Thermal Simulation?
Visualize
Results
Try
Solutions
Identify
Problems
WebTHERM™ – Board Layout Thermal Sim page
PC board
Inputs:
•Input voltage
•Current
•Top and bottom
ambient
temperature
•Copper thickness
•Airflow
•Board orientation
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WebTHERM™ Results
•View
interactions
between
components
•Diode and IC
both generate
heat
•Effect of
backside
copper and vias
Top
Bottom
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Example: LM3150 Controller
4oz copper thickness
Low side FET is 68C
.5oz copper thickness
Low side FET is 117C
Vin: 14-22V
Vout: 3.3V
Iout: 6A
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WebTHERM™ Solutions
Design Specs:
Vin: 20-22V
Vout: 5V
Iout: 5A
•No airflow
•Diode: 134C
•IC: 146C
Or add a
heat sink
•No airflow
•Heat sink
•Diode: 91C
•IC: 52C
Use a Fan
•500 LFM airflow
•Diode: 95C
•IC: 106C
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Build It
Build It page
•Order custom
prototype kit:
•Bare board and parts
•Hourly pricing and
inventory updates
•Shipped overnight
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Design Report
Your design from the top: inputs, supplies, schematics, BOMs
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• Design has been created to meet the input
specifications BUT
• User still needs to bring it into their CAD tool
• Export schematic to 5 CAD formats
• NEW: Export PCB layout to 5 CAD formats
• Save time and cost
• Proven functional board layout
• Includes the WEBENCH® Component Library
Why Export?
Advantages
Design
Export
Design
Creation
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Export directly into CAD formats
Altium® Designer
OrCAD/Allegro
DxDesigner/PADs
DesignSpark
CadSoft Eagle
PCB
Export
Export WEBENCH® designs directly to CAD environment
Value inputs
• System design IP
• Component calculation
• Vendor selection
• Performance optimization
• Size optimization
• Relative pricing
• Speed/accuracy
Paper
design report
Design creation
Schematic
Export
Simulation
Export
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Exported board to CadSoft Eagle
WEBENCH® Exports Directly to CAD Tool WEBENCH WebTHERM™
Board
Exported board to Altium® Designer
Exported board to Allegro
TI Information-Selective Disclosure
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WEBENCH® Exports Directly to Spice Tool
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WEBENCH simulation
TinaTI™ simulation
Powerful Features for Power Design! Automatic recompensation
• Specify target loop
parameters: phase
margin, crossover, open
loop gain, gain margin
• Automatically selects
updated compensation
components
• Bode plot waveform
viewer and comparison
Electrical simulation
Thermal simulation
Schematic editing & simulation
Advanced Options
• Find designs by freq, ripple, softstart, etc.
• Set physical constraints for area or height
• Find ICs with special features
• Filter by control mode
• Create custom sort/ranking order And more …!
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WEBENCH® Efficiency Verification
40
50
60
70
80
90
100
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Effi
cien
cy (
%)
Load Current (A)
TPS54320: Vin(min,max)=8V, Vout=3.3V
Measured Eff. CC Efficiency
Bench Model
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WEBENCH® Bode Plot Verification
-60
-40
-20
0
20
40
60
80
100
120
140
-30
-20
-10
0
10
20
30
40
50
60
70
100.0E+00 1.0E+03 10.0E+03 100.0E+03
Ph
ase (
Deg
)
Gain
(d
B)
Frequency (Hz)
TPS54320 Wbench Vs User's guide measurements Comparison: 12Vin, 3.3Vout , 3A Iout @ fsw=515.8kHz
Measured 12V Gain WB 12V Gain Measured 12V Phase WB 12V Phase
Crossover_Frequency = 27379.4Hz; Crossover_Phase = 82.3deg
-60
-40
-20
0
20
40
60
80
100
120
140
-30
-20
-10
0
10
20
30
40
50
60
70
100.0E+00 1.0E+03 10.0E+03 100.0E+03
Ph
ase (
Deg
)
Gain
(d
B)
Frequency (Hz)
TPS54320 Wbench Vs User's guide measurements Comparison: 17Vin, 3.3Vout , 3A Iout @ fsw=515.8kHz
Measured 17V Gain WB 17V Gain Measured 17V Phase WB 17V Phase
Crossover_Frequency = 29290.8Hz; Crossover_Phase = 90.16deg
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WEBENCH® Bode Plot Verification
-60
-40
-20
0
20
40
60
80
100
120
140
-30
-20
-10
0
10
20
30
40
50
60
70
100.0E+00 1.0E+03 10.0E+03 100.0E+03
Ph
ase (
Deg
)
Gain
(d
B)
Frequency (Hz)
TPS54320 Wbench Vs User's guide measurements Comparison: 12Vin, 3.3Vout , 3A Iout @ fsw=515.8kHz
Measured 12V Gain WB 12V Gain Measured 12V Phase WB 12V Phase
Crossover_Frequency = 27379.4Hz; Crossover_Phase = 82.3deg
Bench
(Green) Model
(Blue)
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WEBENCH® Power Architect
WEBENCH Power Designer
WEBENCH
Visualizer
Power Architect,
FPGA Architect
and Processor
Architect
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Design This Power Supply in Seconds?
Many Loads, Many Supplies
• Core Supply [email protected]
• FPGA IO [email protected]
• Vcca [email protected]
• Flash [email protected]
• SDRAM [email protected]
• CCD [email protected]
• PLL [email protected]
• Motor Control [email protected]
• Miscellaneous [email protected]
9 loads and 5 voltages
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Analyze Performance, Cost and Footprint for Selected Architecture
Click on
each supply
to display
detail
Go
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Special Needs – DDR, Power Sequencing
Available today
WEBENCH® Power
Designer
Available soon
WEBENCH Power
Architect extension
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WEBENCH® Power Designer - Demo
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WEBENCH® Training and Support
• Home page
– http://www.ti.com/webench
• Help Information
– http://www.ti.com/lsds/ti/analog/webench/help-overview.page
• Training videos
– http://www.ti.com/lsds/ti/analog/webench/webench-videos.page
• TI E2E Support for WEBENCH®
– http://e2e.ti.com/support/development_tools/webench_design_center
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Power Products for Industrial Overview
Mike Segal
TI Field Applications Engineer for Power
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Driving power
more efficiently
from input…
Delivering power innovation
…to output
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Point-of-Load Power Supply Control Portable Power
Conversion Battery Management
Power management for every application
• Chargers, gauges and protection
• Longer battery life
• Support for any battery chemistry
• Battery state-of-health
• Power converters, backlighting, PMICs, power for power amplifiers
• Extended run-time
• High efficiency
• Integration for reduced footprint
• AC/DC converters, power factor, protection, digital power controllers
• Energy efficiency
• System protection
• Intelligent control
• DC/DC, voltage regulators, protection circuits
• High-voltage power density
• Power supply reliability
• Low noise, high efficiency
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Total power management for battery-driven electronics…
Portable Power Solutions
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… and full system solutions
Line Power Solutions
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Where does TI differentiate?
Widest Input
Range
Power conversion
from sub-1 volt to
hundreds of volts Intelligent
Delivery
Digital and analog
power designs
High Current
Delivering more
power more
efficiently in a smaller
footprint
Highest
Efficiency
Phenomenal
efficiency and
thermals for power
conversion
Protection
System and circuit
power protection to
increase reliability,
longevity
Packaging
Extensive offering
packages with
excellent thermal
dissipation
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Electronics enabling new industrial revolution
• Higher reliability
• Increased
energy efficiency
• Higher precision
• Better safety
• More connected
Factory automation and control Building automation
Smart Grid and energy Motor drives
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Wide VIN integrated FET step-down regulators
LM5019
0.5A Ou
tpu
t C
urr
en
t (I
OU
T)
Input Voltage (VIN)
1A
1.5A
2.5A
5A
3.5 4.5 7 36V 42V 75V 6
LM5010A
60V
TPS54160
TPS54260
LM5576
TPS54062
100V
LM5009A
50mA
150mA
350mA
Synchronous
Non-Sync
LM5574
LM5007
LM5006 – External Low-side FET
TPS54061
TPS54140
TPS54040, TPS54060, TPS5401
TPS54240
TPS54360
LM34919/C – 2mm x 2mm uSMD
3.5A
TPS54560
9
2A LM25011 – Adjustable Current Limit
LM25010A
LM25019 - Fly-Buck Support
LM5008A
LM5018 LM25018 - Fly-Buck Support
LM5017 LM25017- Fly-Buck Support
LM5160/LM5160A – Fly-Buck Support
LM5005 LM25005
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LM5160A / LM5160 1.5A 65V Synchronous Buck Converter or Isolated Fly-Buck
Features Benefits
• Wide 4.5V to 65V input range (70V Abs Max)
• Integrated Ultralow on-resistance MOSFETs
• Constant on-time control
– No external loop compensation
– Fast transient response
• CCM or DCM with diode emulation
• CCM option supports Isolated Fly-Buck
• External VCC bias option (LM5160A only)
• Line UVLO with adjustable hysteresis
• Programmable soft-start with pre-biased startup
• Near constant frequency adjustable to 1MHz
• ±1% Feedback voltage reference
• Peak current limit protection
• Package: WSON-12 (4x4mm)
Applications
• Industrial PLC
• IGBT Gate Driver Bias
• E-Meters
• Integrated buck and sync FETs save space
• COT control easy to use, low component count and fast transient response
• No compensation needed
• Provide easy isolated bias design with Fly-Buck
Synchronous Buck
VIN
VPRI
AGND PGND
VIN
EN/UVLO
RON
SS
SW
BST
VCC
FB
FPWM
LM5160ALM5160
VSEC1
Ruvt
Ruvb
Rfbt
Rfbb
Css
RON
COUT
Rr
Cac
Cr
COUT1
CVCC
CBST
CIN
X1
RPL1
D1
VSECn
COUTnRPLn
Dn
Multi-Output Fly-Buck
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Wide VIN boost controllers and converters
Input Voltage (VIN)
40V 52V 3V 60V 75V 6V 4.5V
LM5002 0.5A - Boost / SEPIC / Flyback Regulator
LM5000 2A – Boost / SEPIC / Flyback Regulator
TPS40210 – Boost / SEPIC / Flyback Controller
LM5001 1A - Boost / SEPIC / Flyback Regulator
65V
TPS55340 5A – Boost / SEPIC / Flyback Regulator
TPS43060/61 Synchronous Boost Controller
LM5122 Synch Boost with Stackable Multiphase & Current Sharing
LM5121 Synch Boost with Disconnect Switch & Current Limiting
LM5022 – Boost / SEPIC / Flyback Controller
LM5020– Boost / SEPIC / Flyback Controller
13V 90V
Synchronous
Non-Sync
48
Features Benefits
Applications
LM5121 Wide-Input-Range Sync-Boost Control w/ Disconnect Switch Control
• Wide input voltage range: 4.5V to 65V (3V after start-up)
• Output voltage adjustable up to 100V
• Input-to-output isolation in shutdown
• Inrush current limiting
• Bypass operation (Vout = Vin)
• Robust integrated 3A gate drivers
• AEC-Q100 qualified version available
• Free-run or synchronizable up to 1MHz
• Inductor DCR current sensing capability
• Programmable UVLO
• Hiccup mode fault protection
• Low shutdown quiescent current: 9µA
• Thermally enhanced TSSOP20 package
• Automotive
• Industrial
• Computing
• Communications
• Supports wide voltage range requirements in automotive (e.g., cold crank and load dump), industrial, and telecom applications
• Input disconnect FET protects power source from load faults and disconnects load in shutdown mode
• Synchronous rectification for efficient operation
• DCR sense reduces cost and losses
VCC
LM5121
CSN
DG
SYNCIN/RT
RES
SSUVLO
VIN
AGND
BST
MODE
PGNDSLOPE
COMP
FB
HO
LO
SW
+
DS
VOUTVSUPPLY
CSP
49
LM5175 4-Switch Buck-Boost Controller
Features Benefits
Applications
• Wide input range from 3.5V to 42V, 60V transient
• Supports output voltages up to 55V
• Highest transition region (Vin ≈ Vout) efficiency
• Single low-side current sense resistor
• Cycle-by-cycle limit plus optional hiccup mode
• Optional frequency dithering reduces peak EMI
• Optional input/output constant current limiting
• Load disconnect from input in shutdown
• Output overvoltage protection
• Adjustable UVLO, SS, frequency, current limit
• Adjustable frequency from 100 kHz to 600 KHz
• HTSSOP-28 Package (QFN-28 Samples 3Q15)
• Automotive Infotainment (Start-Stop)
• USB Power Delivery (USB 3.1)
• Industrial PCs, POS Terminals
• Battery and super-capacitor charging
• Memory Backup
• Reduced size and higher efficiency relative to cascaded boost and buck
• Buck or Boost control yields highest efficiency
FB
VIN ISNS(-)
RT/SYNC
Vin
BOOT1
EN/UVLOVout
AGND
CSG
SS CS
PGND
VOSNS
HDRV1
SW1
COMP
LM5175
LDRV1
LDRV2
HDRV2
BOOT2
SW2
MODE
DITH
Enable
VCC
ISNS(+)
VCC
VCC
SLOPE
VISNS
BIAS
PGOOD
50
SIMPLE SWITCHER® power modules
Example: LMZ21701 = Nano module with 17V max, 1A output
51
LDO solutions Find the right LDO now
LDO solutions Find the right LDO now
LDO solutions Find the right LDO now
Easy access to LDOs www.ti.com/ldo
52
TI MOSFET line card: www.ti.com/mosfet
Power
Block 3x3
IC Integration
Clip 3x3 & 5x6
Industry Standard High
Efficiency
Dual Cool
3x3 & 5x6
Power Block
5x6
Best Discrete
Thermal
Capability
Best in Class Efficiency, Frequency &
Cost/Performance
QFN2x2 & 3X3 & 5X6
90%
15A
92%,
25A
Power Stage
5x6
93%
25A
WLP 1x1 to
1.7x2.3mm
Micro
Pico
Power Block II
Gen1.3 30V\20V 5V Optimized
FemtoFET™
1.0x0.6mm
Medium Voltage
40V – 100V
Gen 1.4 12V
– 30V
Land Grid Array
LGA
Nano
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Available soon WEBENCH Power Architect
Extension
Available today WEBENCH Power Designer
Power Sequencing, DDR termination
www.ti.com/sequencers
www.ti.com/ddr
54
Features Benefits
Applications
• Patented Impedance TrackTM battery fuel gauging technology.
• Extremely flexible battery gas gauge
– Supports Li-Ion and LiFePO4 chemestries
– Large Capacity >65Ahr
– High Current >32A
– Suitable for packs 2.7V to ~60V
• Optional Interfaces
– Single wire HDQ / Two-wire I2C
• LED Support
• Configurable Warning signal
• Packaged in 14 pin TSSOP
• Power Tools
• Power Assist, eBike
• Medical Instruments
• UPS Backup
• Remote Powered Systems
• Enables lower terminate voltage of system and extends run time from battery.
• Accurate gauging of popular chemistries
– Can be used with all popular chemistries and is capable of gauging very high series cell batteries
• Industry standard battery communications
• Display to report battery health
• Alert feature for additional protection
• Industry Standard package
bq34z100 1s to 16s Impedance TrackTM fuel gauge for Li-Ion and LiFePO4
P2
VEN
P1
BAT
CE
REGIN
REG25
P3/SDA
P4/SCL
P5/HDQ
P6/TS
SRP
SRN
VSS
PW(TSSOP 14)
6.5mm X 4mm
bq77908Protection
&
Balancing
Sense
Resistor
Temp
Sense
bq34z100
VSS
SRP
SRN
BAT
REGIN
P6/TS
P1
P2
P3/SDA
P4/SDL
P5/HDQ
DSG CHG
I2C Data
I2C Clk
PACK+
PACK -
h S
erie
s C
ells
VEN
REG25
Alert
Li-Ion Battery Pack
DSG CHG
56
Global application expertise and support, anytime and anywhere
TI Designs reference designs
More than 1,500 TI Designs to
jumpstart system designs
24/7 tool sales and silicon samples
TI E2E™ Community
More than 1.5 million questions
and answers at your fingertips in
Sales support
Industry’s largest sales
and applications teams
WEBENCH® online design
tools
Delivering custom results in seconds
Training
Online and in-person
customer training
Technical
Documents
Comprehensive
technical documentation
available online
57
Jump start system designs and
speed time to market
Reference design library includes schematics or
block diagrams, BOMs, design files and test
reports.
TI's portfolio of analog, embedded processor and
connectivity.
Supports a broad range of applications including
industrial, automotive, power and more.
www.ti.com/tidesigns
Thousands of TI Designs available today with many more under development.
Reference designs speed innovation
58
http://my.ti.com
myTI: TI’s toolbox and resource center Get connected. Stay informed.
59
Useful links
• Linear Regulators: www.ti.com/ldo
• Power Modules: www.ti.com/powermodules
• Buck, Boost & Buck/Boost Controllers and Converters: www.ti.com/widevin
• MOSFETs: www.ti.com/mosfet
• Battery Management: www.ti.com/battery
• AC/DC and Gate Drivers: http://power.ti.com
• TI Power Seminar archives: www.ti.com/psds
www.ti.com/industrial
60