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3 Independent Feedback Loops
16MHz Error Analog to Digital Converter (EADC)
14-bit (effective) DAC for Control Loop Reference
Dedicated PID Hardware (2p/2z configurable)
8 High Resolution DPWM Outputs (250ps Pulse Width Resolution)
2MHz Max Switching Frequency
High Performance 31.25MHz, 32-bit ARM7 Processor
14 Channel, 12-bit, 265ksps General Purpose ADC (Improved
parametrics at cold temperature)
2 UARTs + PMBus Interface
UART Auto-baud rate adjustment for robust communication
7 50ns Analog Comparators, Cycle-by-cycle ILIMIT
On-chip (BOD / POR), Single Supply Operation (3.3V)
External Interrupt + Fault Input & Output
Input Voltage Feed-forward
Integrated Copper Trace Current Sensing
-40C to 125C Extended Temp Range
Synchronous Rectifier Dead Time Optimization Peripheral
• 48Vin Isolated DC/DC Converters
• Offline AC/DC and Isolated DC/DC Power Supplies
• PFC, Phase Shifted Full Bridge, Two Switch Forward, Hard
Switching Full Bridge, and Resonant LLC
• Fully Programmable and Customizable Solution with
Control Architecture Optimized for Power Supply
Applications
• Independent, High Speed Power Supply Loop
Control, separated from Housekeeping
Microcontroller
• Programmable Hardware for High Speed Functions
(Mode Switching, Voltage Feedforward, Constant
Current, etc.)
Programmable Power Peripheral
HR DPWM
HS EADC
PID based
x8
x3
Filter x 3
Advanced
Power
General
Control
Fault Mux
Purpose
ADC
Analog
Digital
Comparator
Comparator
x7
x4
Services
ARM7TDMI-S
8KB
RAM
32 KB
Flash
Communications
OSC
GPIOx
Timer
PMBus/
I2C x2
UART
x2
Protection
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Control
UCD3138A – Digital PWM Controller
UCD Integrated Digital Power Controller
Enhanced EADC (DAC
Accuracy) with Hardware
Dithering (3x 16 MHz, 1mV
resolution offers best in class
current sharing accuracy)
DPWM
Hardware mapped shut-down
due to faults
Fixed or adaptive sample trigger
positioning
Sync FET soft on/off and Ideal
Diode Emulation
Mode switching and Light Load
Burst mode
Enhanced 2p / 2z Digital
Compensator with Simplified
PID Structure
(for Improved Performance and
Simplified Compensation)
Programmable Power Peripheral
ADC:
12 bit SAR
Internal temp sensor
Dual sample and hold
Averaging
Digital comparators
PMBus addressing current
sources
General
Purpose
ADC
Fault Mux
Digital
Comparator
x4
Services
Flexibility:
Digital Core enabling
flexibility and manage
housekeeping function.
Support on-the-Fly
firmware update
without power supply
interruption
TI Confidential – NDA Restrictions
ARM7TDMI-S
8KB
RAM
64KB
Flash
HR DPWM
x8
Control
PID based
Filter x 3
Advanced
Power
Control
Analog
Comparator
x7
Protection
HS EADC
x3
Advanced Power Control
• Current Share
• CPCC
• Synchronization
• Primary side Vtg sensing
• Flex and Current Balancing
Protection:
Highly configurable to initiate
CBC w and w/o pulse matching
or system shutdown.
Communications
OSC
GPIOx
SPI
Timer
PMBus/
I2C x2
UART
x2
Communications:
Several communication
peripherals providing
flexibility for host
communication.
HVPS – Digital Controller Roadmap
128kB
Pin
Count
UCD3138
(2nd Generation)
80
Released
In Development
Concept
UCD3138128PFC
80-pin QFP
UCD3138A64PFC
80-pin QFP
64kB
80
64
UCD3138064RGC
64-pin QFN
48
UCD3138064RGZ
48-pin QFN
UCD30xx
(1st Generation)
64
UCD3040
64 & 80-pin QFN
48
UCD3020
48-pin QFN
40
UCD3028RHA
40pin QFN
UCD3138064ARMH
40-pin QFN
UCD32xx
Next Gen Digital
UCD3138064RMH
40-pin QFN
40
32kB
Flash (Program) Memory Size
UCD3138128APFC
80-pin QFP
UCD3138RGC
64-pin QFN
UCD3138ARGC
64-pin QFN
UCD3138RHA
40-pin QFN
UCD3138RMH
40-pin QFN
28
UCD3138ARMH
40-pin QFN
UCD3136
2011 and Older
TI Confidential – NDA Restrictions
2012-2013
2014
2015+
UCD3138 Family Development Tools
Software
Development Kit
Application Kits
PFC EVM
HSFB EVM
PSFB EVM
Resonant LLC
(UCD3138PFCEVM-026)
(UCD3138HSFBEVM-029)
(UCD3138PSFBEVM-027)
(UCD3138LLCEVM-028)
Constant current
and constant power
secondary side
control
High efficiency digitally
controlled standalone
phase shift full-bridge
DC-DC power
conversion
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Descripti
on
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Power
Rating
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Special
Features
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single phase PFC,
Dual-Phase
Interleaved PFC or
Bridgeless PFC
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360 W, 400 VDC
rated power.
Universal input 95 –
265 VAC.
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High Power Factor
and low iTHD (<5%
@ 20% load, <2%
@ 100% load)
Can achieve < 1 %
power metering
accuracy.
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$199
TI Confidential – NDA Restrictions
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Full-load power
360W, or full-load
current 30A
DC input 36 -72Vdc
Supports Input
voltage feed forward
control with
constant start time.
Supports voltage
mode control as
well as peak current
mode control
$149
Full-load power
360W, or full-load
current 30A
• DC line I/p 350 400Vdc
• Constant current
and constant power
secondary side
control with
constant start time.
$199
Open Loop Board
(UCD3138OL40EVM-032 /
UCD3138OL64EVM-031)
LLC resonant halfbridge DC-DC
Supports
Synchronous
rectification
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Full-load power
340W, or full-load
current 29A
N/A
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DC line input from 350 to
400Vdc
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Burst Mode Cycleby-Cycle current
limiting with Duty
Cycle Matching
Protection: over
voltage, over
current, and
brownout
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$199
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Test points for easy
access to all pins.
All GPIO and
ADC12 pins
accessible
Socket for easy
removal/replacemen
t of the device
Hardware terminals:
PMBus, JTAG,
UART, and Logic
Analyzer to allow
easy debug
$99
Competitive Analysis
Strengths
- Print Position: Mostly
Housekeeping = FW Position
Weaknesses
Strengths
- Power Consumption / Price
- Power Management Portfolio
- Broad Controller Portfolio (8Bit to 32-Bit DSPic)
- Power Management Expertise
- Analog Integration
- TI’s Power Management
Portfolio
- Improved Digital Power
Management Applications
Collateral
- Power Applications
Expertise
- Increasing Focus on Digital Power
- Commitment to Innovation w/
Digital and Analog Power
Solutions
Opportunities
- Print Position (Mostly
Telecom AC/DC) = FW
Position
- Eltek, Emerson, Lineage,
Power-One, etc…
- TI’s Power Management
Portfolio
- Power Applications Expertise
- Commitment to Innovation w/
Digital and Analog Power
Solutions
Threats
Opportunities
Strengths
-Local Applications / Design Services
Resources China
-GUI = Ease of Development
-Low Cost State Machine Solution
Weaknesses
- Roadmap Questions
- Applications Support
- Power Management Portfolio
- < $1.5 Solutions
- Low Cost CAN Solutions
- Potential Commitment to Future
Roadmap
Threats
Weaknesses
-Less Flexible State Machine Solutions
-Concerns on Commitment to the Market
-Ability to Meet Customers Ever Changing
Needs
- TI’s Most Flexible Digital Power
Offerings
- -48V DC/DC Applications
- TI’s Power Management Portfolio
- Ties to Emerson Through Marketing Manager
- New PFC Based Solutions 3Q 2009
- TI’s Power Applications Expertise
Opportunities
TI Confidential – NDA Restrictions
Threats