UCD3040_15 Datasheet, PDF (1/81 Pages) Texas Instruments – Digital Power Controllers

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UCD3040
UCD3028
UCD3020
SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013
Digital Power Controllers
Check for Samples: UCD3040, UCD3028, UCD3020
FEATURES
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•23 Digital Control of up to Four Voltage Feedback
Loops
• Up to Eight High-Resolution Digital Pulsewidth
Modulated (DPWM) Outputs for Supporting a
Wide Range of Offline, Isolated and Non-
Isolated DC-to-DC Topologies
– 250-ps DPWM Pulse-Width Resolution
– 4-ns DPWM Frequency Resolution
– Adjustable Phase Shift Between DPWM
Outputs
– Adjustable Dead Band Between Each
DPWM Pair
– Active-High or -Low DPWM Polarity
– Up to 2-MHz DPWM Switching Frequency
• Dedicated High-Speed Error Analog-to-Digital
Converter (EADC) for Each Feedback Loop
With Sense Resolution of up to 1 mV
• On-Chip 10-Bit D and A Converter (DAC) for
Setting EADC Reference Voltage
• Dedicated Hardware Accelerated Digital
Compensators or Control Law Accelerators
(CLA)
– Three-Pole, Three-Zero Configurable
Compensator
– Features Non-Linear Digital Control
– Multiple Programmable Coefficient
Registers for Adaptive Digital
Compensation
• Up to 15-Channel, 12-Bit, 200-ksps, Analog-to-
Digital Converter (ADC)
• Multiple Levels of Fault Protection
– Four High-Speed Analog Comparators
– External Fault Inputs
– 12-Bit ADC
• Configurable for Voltage-Mode, Average-
Current-Mode, and Resonant-Mode Control
• Allows Synchronization of DPWM Waveforms
Between Multiple UCD3040, UCD3020 and
UCD3028 (UCD30xx) Devices
• Adjustable DPWM Pulse Width Enables
Support for Current Balancing in a Multiphase
Application.
• High-Performance 31.25-MHz, 32-Bit ARM7
Processor
• 32-KByte Program Flash and 2-KByte Data
Flash Memory With Error Correction Code
(ECC)
• 4-KByte Data RAM
• 4-KByte Boot ROM
• Communication Peripherals
– PMBus
– UART
– SPI
– JTAG (Not Available in the UCD3028)
• Single-Supply Solution: Internal Regulator
Controls External Pass Element
• Internal Temperature Sensor
• Up to Five Additional Timers
• Built-In Watchdog, BOD, and POR
• 80-Pin QFP (PFC), 64-Pin QFN (RGC), 48-Pin
QFN (RGZ), and 40-Pin QFN (RHA and RMH)
Package Offerings
• Operating Temperature Range: –40°C to 125°C
APPLICATIONS
• Isolated AC-to-DC and DC-to-DC Power
Supplies
• Power-Factor Correction
• Non-Isolated DC-to-DC Power Supplies
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Fusion Digital Power, Code Composer Studio are trademarks of Texas Instruments.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009–2013, Texas Instruments Incorporated