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UCD3028 Dataheets PDF



Part Number UCD3028
Manufacturers Texas Instruments
Logo Texas Instruments
Description Digital Power Controllers
Datasheet UCD3028 DatasheetUCD3028 Datasheet (PDF)

www.ti.com UCD3040 UCD3028 UCD3020 SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013 Digital Power Controllers Check for Samples: UCD3040, UCD3028, UCD3020 FEATURES 1 •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 NonIsolated DC-to-DC Topologies – 250-ps DPWM Pulse-Width Resolution – 4-ns DPWM Frequency Resolution – Adjustable Phase Shift Between DPWM Outputs .

  UCD3028   UCD3028



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www.ti.com UCD3040 UCD3028 UCD3020 SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013 Digital Power Controllers Check for Samples: UCD3040, UCD3028, UCD3020 FEATURES 1 •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 NonIsolated 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-toDigital Converter (ADC) • Multiple Levels of Fault Protection – Four High-Speed Analog Comparators – External Fault Inputs – 12-Bit ADC • Configurable for Voltage-Mode, AverageCurrent-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 1 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. 2 All other trademarks are the property of their respective owners. 3 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 UCD3040 UCD3028 UCD3020 SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013 www.



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