Transcript Presentation title here

TPS53647
PMBus 4-phase
DCAP+™ Mode
Driverless Buck Controller
with Non-Volatile Memory (NVM)
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TPS53647
4.5V-17V, 4-phase, DCAP+ Driverless PWM Buck Controller with PMBus
Monitoring of Input/Output Voltage, Current, Temperature, and Power
Features
Benefits
•4.5V to 17V Input Voltage, 0.5V to 2.5V Output Voltage with 5mV
step programming
• Works with 5V and 12V bus, Addresses DSP and ASIC core rails
•DCAP+ Control Mode
• Ultra-fast load transient response and accurate load regulation
with minimal external components
•Driverless configuration; supports in excess of 240A IOUT
• Optimized with TI Smart Power Stages in PowerStack™ QFN for
High Efficiency and Power Density; scalable output power
•PMBus 1.2 telemetry on voltage, current, temperature, and
power
• Increased reliability
•Differential mode Vsense; ±0.7% Accurate Vref from 0C to 85C,
• Tight voltage regulation; spec includes error amp offset; more
headroom to meet tight overall tolerance specs
•Configurable with Non-Volatile Memory (NVM) or Pin-Strapping
•40-pin, 6x6mm QFN package with Powerpad
•AutoBalance™ Phase-to-Phase Current Sharing
• Customizable solution with easy board bring up
• Small footprint for 4-phase controller
• No need to over-design each phase inductor, lower BOM cost
CSD95372B
Power Stage
Applications
• Enterprise Server/Storage Systems
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Ethernet Switches, Base Stations, and Routers
Video Surveillance
Industrial and Embedded computers
Software Defined Radios
Factory Automation
High-End Programmable Logic Controllers
Voltage Regulator Modules (VRMs)
CSD95372B
Power Stage
TPS53647
PMBus
Driverless
PWM
CSD95372B
Power Stage
CSD95372B
Power Stage
TPS53647
TI First
4.5V-17V, 4-phase, DCAP+ Driverless PWM Buck Controller with PMBus
Monitoring of Input/Output Voltage, Current, Temperature, and Power
Features
Discovery
Questions
Pricing &
Availability
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Control Mode: DCAP+ Mode
Interface: PMBus 1.2
Feedback Voltage Accuracy: ±0.7% from 0ºC to +º85C Ambient
Temperature
Output Current Support: 240A or higher (depends on Power Stages)
Number of Phases: 1,2,3,4 – Selectable
Default Values Read: from Pin Configurations or from the NVM after
each power-up cycle, selectable via resistor
Voltage Sensing: Differential Remote
PMBus programming: Soft Start, PGOOD, OVP, UVP, OTP, UVLO,
ILIM, Vout, Voltage Margin, OverCurrent Protection Mode (Latch Off
or Hiccup), Per Phase Current Limit, Vout Offset, Boot-Up Voltage,
Compensation, Phase Shed, Voltage Droop
Monitoring Accuracy: ±5% (IOUT), ±2 VID (VOUT), ±5ºC (External
Temperature)
Reset: Reset Vout Function (without power cycling)
Package: 6x6mm 40 pin Powerpad QFN
TPS53647
TI First
4.5V-17V, 4-phase, DCAP+ Driverless PWM Buck Controller with
PMBus Monitoring of Input/Output Voltage, Current, Temperature,
and Power
•
Do you have high-current ASICs or DSPs in your system?
• The TPS53647 can power up to 200A ASICs with high
efficiency, and power density, while adding PMBus
programming and monitoring for ease of use and system
diagnostics.
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Is thermal performance and power density critical to your ASIC
power design?
• The TPS53647 is a driverless 4-phase PWM and it is
optimized to work with TI CSD95372B Smart Power Stages
that come in TI’s proprietary PowerStack Stacked-Cu-Clip
QFN package for excellent thermal performance, easy
heatsinking into the internal GND PCB layers, and high
power density.
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Do you want to be able to program the converter without PMBus?
• The TPS53647 has extensive pin-strapping (resistors tied to
pins) capability for many power supply parameters including
Soft Start and Boot Up voltage
Features
Discovery
Questions
Pricing &
Availability
TPS53647
TI First
4.5V-17V, 4-phase, DCAP+ Driverless PWM Buck Controller with
PMBus Monitoring of Input/Output Voltage, Current, Temperature,
and Power
Features
Discovery
Questions
Pricing
Availability
Resources
Product Info: TPS53647RTAR/RTAT
Pricing 1Ku: $3.85
Availability:
– Silicon:
– Samples Now
– Full production Now
– Evaluation Boards: TPS53647EVM, Now,
– Software: Fusion Digital Power Designer, Now
– Datasheet: See TI.com
Additional resources:
Support: Digital Power Landing Page
TI Designs: TI Design using the TPS53647
USB-to-GPIO Adapter: HPA174 USB Interface Adapter EVM
TPS53647
4.5V-17V, 4-phase, DCAP+ Driverless PWM Buck Controller with PMBus
Monitoring of Input/Output Voltage, Current, Temperature, and Power
• Why were these parts developed?
– High-current ASIC core and I/O power rails are increasing in server, storage and
communication systems. Customers require highly efficient, power dense stepdown multiphase dc/dc converters for power-hungry ASICs and DSPs with higher
level of feature integration to achieve low system cost and enable complete power
system protection, and better reliability.
– Customers need PMBus to monitor ASIC rails for characterization, debugging, as
well as remote diagnostics through IOUT, VOUT, TEMP and FAULT telemetry .
– Customers want to be able to create new designs fast, and ensure ease of
configuration through both pin-strapping and PMBus programming of NVM.
• What differentiates this part?
– TI’s non-Intel-CPU driverless 4-phase controller (TPS40425/8 is also driverless
but only 2 phases, so has to be stacked for 4-phase operation)
– Extensive Pin-Strapping and PMBus programming of functions
– PMBus Vout, Iout, Temp, and Power Out monitoring + Analog Current Monitor
– Patented AutoBalance™ Phase-to-Phase Current Balance for thermal sharing
and increased reliability
Need more? See
Parametric Search:
DC/DC Step-Down Controller
Buck Controller
LM5116
100V
Vin max
>50V
40V
30V
100V, Synchronous
LM5088
LM5085
75V, Non-Synchronous,
CM, Low EMI, Eco-Mode
75V, Eco-Mode,
COT PFET100% Duty cycle
LM5117
LM5119
TPS40170
75V, Synchronous,
Current Monitor, Eco-Mode
75V, Synchronous,
Dual phase/rail, Eco-Mode
60V, Synchronous
LM25116/7
LM25119
LM3150
LM25088
LM25085
42V, Synchronous,
Current Monitor, Eco-Mode
42V, Synchronous,
Dual Phase/Rail, Eco-Mode
42V, Synchronous, Ultra-fast
Transient Response
42V, Non-Synchronous,
CM, Low EMI, Eco-Mode
42V, Eco-Mode,
COT PFET100% Duty cycle
LM5642
LM3485
LM3489
36V, Synchronous,
Dual Rail
36V, Hysteretic PFET,
Eco-Mode
36V, Hysteretic PFET,
Eco-Mode
TPS53014 /53015
TPS53219
TPS53624
TPS51632
28V, Synchronous,
Very simple design, Low cost
28V, Synchronous,
DCAP, Eco-Mode
28V, Synchronous,
Dual-Phase, DCAP
24V, Synchronous,
for Tegra® CPU’s
LM27402
20V, Synchronous
LM27403
TPS40303 /4/5
20V, Synchronous
Voltage Mode FF
20V, Synchronous
TPS40200
52V, Non-Synchronous
TPS40322
20V, Synchronous,
Dual-output
20V
10V
TPS40422
TPS40195
TPS40400
20V, Synchronous,
Dual-output PMBus
20V, Synchronous,
Flexible PWM with Power Good
20V, Synchronous
PMBus
TPS40100 /01
TPS53647
18V, Synchronous,
Flexible PWM
17V,Synchronous,
4-phase, DCAP+
LM2743
16V, Synchronous
TPS40140
TPS40197
15V, Synchronous
Dual Stackable
14V, Synchronous,
Smart Reflex TM VID
TPS40040 /41
5.5V, Synchronous,
Low Pin-Count
Non-Synchronous
Synchronous
Topology
ROADMAP
NEW
EXISTING
Success Stories: TPS53647
Powers non-Intel-ASIC
Device Overview
TI First
RTM Call
Where We Won
Why We Won
Who: Tier 1 Router/Switch Manufacture
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Fast Transient TI’s DCAP+ control
architecture enable super fast load
transient, reduce output minimum output
capacitance while meet the transient spec
to save customer cost and more
importantly space.
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AVS Capability PMBus
VOUT_COMMAND enabled Vout
Adjustment On The Fly (AVS)
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Tight Voltage Regulation ±1% over
temperature enabled customer more
headroom and output capacitor savings for
±5% total regulation spec (FB accuracy,
ripple, DC regulation, load transients)
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Pinstrap VBOOT 256 VBOOT selections
with 5mV resolution
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Accurate READ_VOUT allows better AVS
control.
What: TPS53647
Where: TI TPS53647 in Router/Switch Core
and other high current power supply
Volume: 2.5Mu / year
Customer Need: High-Efficiency, Power
Dense 4-ph buck converter with Adaptive
Voltage Scaling (AVS) capabilities and fast
transient, accurate PMBus READ_VOUT
TPS53647
Competitive Landscape
TPS53647
ISL6334
NCP4200
Device Type
4-ph driverless controller
4-ph driverless controller
4-ph driverless controller
Input Voltage
4.5 - 17V
Not specified
1.7V to 24V
Programmable VIN UVLO
Through PMBus
R-Divider + i2C
Through PMBus 4V - 12V
Reference and Accuracy
Tj = -40oC to 125oC
0.61V – 0.995V, ±8mV
1.0V – 1.52V, ±0.8%
0.6V – 1.0V, ±7mV
1.0V – 1.6V, ±0.6%
-40 to 85 C
+/- 9mV
0.5 - 2.5V
0.5 - 2.5V
0.5 - 2.5V
True Differential Sense
Yes
Yes
Yes
Output Voltage Margin
Yes
Yes
Yes
Yes (through
VOUT_COMMAND)
Yes (through VOUT_COMMAND)
Yes (through VOUT_COMMAND)
VBOOT selection
256 VIDs
256 VIDs (PVID)
User resistor divider
RESET# Function
Yes
No
No
Restart, Shutdown, Restart
Shutdown, Shutdown, Shutdown
Shutdown, Shutdown, Shutdown
Yes (Fixed OVP)
Yes
Unknown
Programmable 300kHz1000kHz through ext. pin or
NVM
100 kHz to 1 MHz
250 kHz – 6 Mhz
PMBus 1.1
No
Yes (I2C)
Yes, V/I/T
±2%/±5%/±5C
N/A
VIN, VOUT, IOUT, VOUT, TEMP (ext)
DCAP+
APP+APA
Voltage Mode
Eco-Mode
Yes
Yes
No
External Compensation
Yes
Yes
Yes
40pin LQFN 6x6mm)
40pin LQFN 6x6mm)
40pin LQFN 6x6mm)
Output Voltage
Digital AVS Support
Output UVP/OVP/OCP Response
OV Enabled During Soft-Start
Switching Frequency
PMBus Support
Telemetry Through PMBus
Control Topology
Package
TI Confidential – NDA Restrictions
9
2 Parts/families that work well together
TPS53647 and CSD95372B
TI First
RTM Call
4-phase PMBus driverless buck controller + 60A Smart Power Stage
Performance
• TPS53647
• 4.5V to 17V Input, 0.5V to 2.5Voutput
• DCAP+ Mode for Fast Transient Response
• Pin-strapping or PMBus NVM programming
• OCP setting resolution sub-1A
• Output Voltage ,and Current Telemetry
• CSD95372B
• 60A Continuous Current Capability
• 93.4% System Efficiency at 30A
• 2.8W Power Loss at 30A
• Temp-compensated Current Sense
• Diode Emulation with FCCM
CSD95372B
Power Stage
TPS53647
PMBus
Driverless
PWM
CSD95372B
Power Stage
CSD95372B
Power Stage
CSD95372B
Power Stage
Capabilities
• Ability to regulate voltage rails up to 200A and Vout
as low as 0.5V with 1% accuracy up to 85ºC
• High power density and complete rail management
and reporting through PMBus
• Closed loop Adaptive Voltage Scaling , Margining
and Monitoring of ASIC rails
Applications
• Communications
• Ethernet Switches, Base Stations
• Enterprise Servers and Storage
• Performance Servers, Storage Attach Boxes
• Test & Measurement
• FPGA Testers, Network/Spectrum Analyzer
TI Design Tools: Web-Orderable EVM
Device Overview
TI First
RTM
TPS53647 Evaluation Module
EVM Features
EVM Benefits
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Regulated 1-V output up to 120-A DC, steadystate output current
Configurable features via the PMBus interface
include Output Voltage, UVLO, Soft Start,
Enable, Fault Limits and Programmable
Response
Convenient Test Points for Probing Critical
Waveforms
Optional External Temperature Sensor
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Tools & Resources
•TPS53647EVM-710
Up to 120A Buck Converter with PMBus
Configurability and Monitoring
Ease to use Fusion GUI Software for PMBus
Enables measuring key power supply
parameters including line/load regulation,
efficiency, Bode Plot, Load Transient Response,
Output Voltage Ripple, Pre-Biased Start-Up,
Sequencing/Control and System Protection and
Monitoring features
Test results available on User Guide
Device Overview
TI First
Who to Sell To…
Application Area #1
(Communications)
Application Area #2
(Servers/Storage)
Application Area #3
(Test & Measure)
Example End
Equipments
• Cellular Basestations
• RRH (remote radio heads)
• DAS/Cellular Repeaters
• Non-Intel-CPU Servers
• Storage Attach Boxes
• High-Current Storage
Controller ASICs on Enterprise
SSD Cards/HBAs/HICs
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Key Market
Differentiators
• Full PMBus Vout, Iout, Temp,
and Pout telemetry from TI’s
first 200A+-capable PMBus
DCAP+ 4-phase buck controller
• Optimized for High Switching
Frequency; designed to work
with TI Smart Power Stage in
PowerStack QFN enabling high
power density and excellent
thermal performance
• 1% Vref accuracy over
temperature for tight load
regulation
• Extensive pinstraping for
default output voltages, soft
start, and other IC functions
with no need for PMBus
• Full Differential Remote Voltage
Sensing for tight load regulation
• AutoBalance Dynamic Phaseto-Phase Balance for thermal
sharing and high reliability
• Full PMBus Vout, Iout, Temp,
and Pout telemetry from TI’s
first 200A+-capable PMBus
DCAP+ 4-phase buck
controller
• Optimized for High Switching
Frequency; designed to work
with TI Smart Power Stage in
PowerStack QFN enabling high
power density and excellent
thermal performance
• 1% Vref accuracy over
temperature for tight load
regulation
• Extensive pinstraping for
default output voltages, soft
start, and other IC functions
with no need for PMBus
• Full Differential Remote
Voltage Sensing for tight load
regulation
• AutoBalance Dynamic Phaseto-Phase Balance for thermal
sharing and high reliability
• Full PMBus Vout, Iout, Temp, and
Pout telemetry from TI’s first
200A+-capable PMBus DCAP+ 4phase buck controller
• Optimized for High Switching
Frequency; designed to work with
TI Smart Power Stage in
PowerStack QFN enabling high
power density and excellent
thermal performance
• 1% Vref accuracy over
temperature for tight load
regulation
• Extensive pinstraping for default
output voltages, soft start, and
other IC functions with no need
for PMBus
• Full Differential Remote Voltage
Sensing for tight load regulation
• AutoBalance Dynamic Phase-toPhase Balance for thermal
sharing and high reliability
FPGA Testers
Spectrum Analyzer
Vector Analyzer
Communications/Network Testers
FAQs
• What are the key upgrades in TPS53647 vs TPS40425/8?
– 4 phases in one IC package vs. 4 phases in 2 IC packages
– DCAP+ Control Mode vs. Voltage Mode, and Extensive Pin-Strapping to
program IC functions
• Is the TPS53647 considered a superior replacement for TPS40425/8?
– TI offers a portfolio of products – with different advantages - to meet varying
customer applications needs; For example, the TPS53647 DCAP+ mode has
faster load transient response and 4 phases in one package; the TPS40425/8
has Voltage-Mode control with fixed, synchronizable switching frequency to
eliminate beat noise and reduce EMI/ EMC, and also offers high-speed AVS
Bus on top of PMBus for higher-speed Adaptive Voltage Scaling of ASICs
• Can the TPS53647 be stacked for higher power requirements?
– No, this 4-phase controller can not be stacked for higher phase count
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FAQs
• Why is the output voltage limited to 2.5V? Why are higher duty cycles not
supported?
– The device’s architecture has been optimized for target applications that typically
require very low core and I/O voltages. The Output Voltage is limited by the
COMP Amplifier Positive Clamp Voltage specified in the datasheet
• Can the TPS53647 be used without PMBus?
– It can be powered up, and several functions can be programmed via extensive
pin-strapping (resistor values) with no need for PMBus programming
• What advantages does PMBus offer over a device with a simple I2C?
– No need to write a Software Program; you can put together a script by putting
PMBus Commands in a sequence and selecting the values in the registers
• Do I have to use the Fusion GUI from TI?
– Yes, for validation and prototyping; a PMBus command script can be generated
for high-volume programming
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FAQ
• Why is the TPS53647 driverless?
– Driverless architecture was first implement in TI’s multiphase PWM controllers in
2013 with an impressive power density increase and board area reduction (3x the
area reduction) due to increased switching frequency capability, easier layout and
heatsinking into the PCB internal GND layers, and increased current density. The
TPS53647 continues this technology advantage paired with the CSD95372B
Power Stage.
• What voltages does the TPS53647 require?
– 5V to power internal analog circuits, and 12V, also used for input voltage sensing
for on-time control (DCAP+ control mode operation), and VIN UVLO.
• If I want the same Soft Start for 2 or more TPS53647s on the board does
using the same resistor from the ADDR-TRISE pin to GND force all
TPS53647s to have the same PMBus Address?
– The ADDR_TRISE pin can program 7 bits, 4 bits for PMBus address, 2 bits for
TRISE and 1 bit for VBOOT. They can use same TRISE with different PMBus
address. The bottom resistor sets the TRISE; the pin voltage sets the 4 bits of
PMBus Address. Use the Excel design spreadsheet to select the values
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