SLUSAP2J March   2012  – November 2021 UCD3138

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Functional Block Diagram
  5. 5 Revision History
  6. 6 Device Comparison Table
    1. 6.1 Product Family Comparison
    2. 6.2 Product Selection Matrix
  7. 7 Pin Configuration and Functions
    1. 7.1 UCD3138RGC 64 QFN Pin Attributes
    2. 7.2 UCD3138RHA, UCD3138RMH and UCD3138RJA Pin Attributes
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing and Switching Characteristics
    7. 8.7 Power Supply Sequencing
    8. 8.8 Peripherals
      1. 8.8.1 Digital Power Peripherals (DPPs)
        1. 8.8.1.1 Front End
        2. 8.8.1.2 DPWM Module
        3. 8.8.1.3 DPWM Events
        4. 8.8.1.4 High Resolution DPWM
        5. 8.8.1.5 Oversampling
        6. 8.8.1.6 DPWM Interrupt Generation
        7. 8.8.1.7 DPWM Interrupt Scaling/Range
    9. 8.9 Typical Temperature Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 ARM Processor
    3. 9.3 Memory
      1. 9.3.1 CPU Memory Map and Interrupts
      2. 9.3.2 Boot ROM
      3. 9.3.3 Customer Boot Program
      4. 9.3.4 Flash Management
    4. 9.4 System Module
      1. 9.4.1 Address Decoder (DEC)
      2. 9.4.2 Memory Management Controller (MMC)
      3. 9.4.3 System Management (SYS)
      4. 9.4.4 Central Interrupt Module (CIM)
    5. 9.5 Feature Description
      1. 9.5.1  Sync FET Ramp and IDE Calculation
      2. 9.5.2  Automatic Mode Switching
        1. 9.5.2.1 Phase Shifted Full Bridge Example
        2. 9.5.2.2 LLC Example
        3. 9.5.2.3 Mechanism for Automatic Mode Switching
      3. 9.5.3  DPWMC, Edge Generation, IntraMux
      4. 9.5.4  Filter
        1. 9.5.4.1 Loop Multiplexer
        2. 9.5.4.2 Fault Multiplexer
      5. 9.5.5  Communication Ports
        1. 9.5.5.1 SCI (UART) Serial Communication Interface
        2. 9.5.5.2 PMBUS
        3. 9.5.5.3 General Purpose ADC12
        4. 9.5.5.4 Timers
          1. 9.5.5.4.1 24-bit PWM Timer
          2. 9.5.5.4.2 16-Bit PWM Timers
          3. 9.5.5.4.3 Watchdog Timer
      6. 9.5.6  Miscellaneous Analog
      7. 9.5.7  Package ID Information
      8. 9.5.8  Brownout
      9. 9.5.9  Global I/O
      10. 9.5.10 Temperature Sensor Control
      11. 9.5.11 I/O Mux Control
      12. 9.5.12 Current Sharing Control
      13. 9.5.13 Temperature Reference
    6. 9.6 Device Functional Modes
      1. 9.6.1 Normal Mode
      2. 9.6.2 Phase Shifting
      3. 9.6.3 DPWM Multiple Output Mode
      4. 9.6.4 DPWM Resonant Mode
      5. 9.6.5 Triangular Mode
      6. 9.6.6 Leading Edge Mode
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 PCMC (Peak Current Mode Control) PSFB (Phase Shifted Full Bridge) Hardware Configuration Overview
        2. 10.2.2.2 DPWM Initialization for PSFB
        3. 10.2.2.3 DPWM Synchronization
        4. 10.2.2.4 Fixed Signals to Bridge
        5. 10.2.2.5 Dynamic Signals to Bridge
        6. 10.2.2.6 System Initialization for PCM
          1. 10.2.2.6.1 Use of Front Ends and Filters in PSFB
          2. 10.2.2.6.2 Peak Current Detection
          3. 10.2.2.6.3 Peak Current Mode (PCM)
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Introduction To Power Supply and Layout Recommendations
    2. 11.2 3.3-V Supply Pins
    3. 11.3 Recommendation for V33 Ramp up Slew Rate for UCD3138 and UCD3138064
    4. 11.4 Recommendation for RC Time Constant of RESET Pin for UCD3138 and UCD3138064
  12. 12Layout
    1. 12.1 Layout Guidelines
      1. 12.1.1 EMI and EMC Mitigation Guidelines
      2. 12.1.2 BP18 Pin
      3. 12.1.3 Additional Bias Guidelines
      4. 12.1.4 UCD3138 Pin Connection Recommendation
        1. 12.1.4.1 Current Amplifier With EADC Connection
        2. 12.1.4.2 DPWM Synchronization
        3. 12.1.4.3 GPIOS
        4. 12.1.4.4 DPWM PINS
        5. 12.1.4.5 EAP and EAN Pins
        6. 12.1.4.6 ADC Pins
      5. 12.1.5 UART Communication Port
      6. 12.1.6 Special Considerations
    2. 12.2 Layout Example
      1. 12.2.1 UCD3138 and UCD3138064 40 Pin
      2. 12.2.2 UCD3138 and UCD3138064 64 Pin
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Code Composer Studio
      2. 13.1.2 Tools and Documentation
    2. 13.2 Documentation Support
      1. 13.2.1 References
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Support Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical Packaging and Orderable Information
    1. 14.1 Packaging Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Digital Control of up to 3 Independent Feedback Loops
    • Dedicated PID-Based hardware
    • 2-Pole/2-Zero Configurable
    • Nonlinear Control
  • Up to 16 MHz Error Analog-to-Digital Converter (EADC)
    • Configurable Resolution as Small as 1mV/LSB
    • Automatic Resolution Selection
    • Up to 8x Oversampling
    • Hardware-Based Averaging (up to 8x)
    • 14-Bit Effective Digital-to-Analog Converter (DAC)
    • Adaptive Sample Trigger Positioning
  • Up to 8 High Resolution Digital Pulse Width Modulated (DPWM) Outputs
    • 250-ps Pulse Width Resolution
    • 4-ns Frequency Resolution
    • 4-ns Phase Resolution
    • Adjustable Phase Shift Between Outputs
    • Adjustable Dead-band Between Pairs
    • Cycle-by-Cycle Duty Cycle Matching
    • Up to 2-MHz Switching Frequency
  • Configurable PWM Edge Movement
    • Trailing Modulation
    • Leading Modulation
    • Triangular Modulation
  • Configurable Feedback Control
    • Voltage Mode
    • Average Current Mode
    • Peak Current Mode Control
    • Constant Current
    • Constant Power
  • Configurable Modulation Methods
    • Frequency Modulation
    • Phase Shift Modulation
    • Pulse Width Modulation
  • Fast, Automatic, and Smooth Mode Switching
    • Frequency Modulation and PWM
    • Phase Shift Modulation and PWM
  • High Efficiency and Light Load Management
    • Burst Mode
    • Ideal Diode Emulation
    • Synchronous Rectifier Soft On/Off
    • Low IC Standby Power
  • Soft Start / Stop with and without Prebias
  • Fast Input Voltage Feed Forward Hardware
  • Primary Side Voltage Sensing
  • Copper Trace Current Sensing
  • Flux and Phase Current Balancing for Nonpeak Current Mode Control Applications
  • Current Share Bus Support
    • Analog Average
    • Master and Slave
  • Feature Rich Fault Protection Options
    • 7 High-Speed Analog Comparators
    • Cycle-by-Cycle Current Limiting
    • Programmable Fault Counting
    • External Fault Inputs
    • 10 Digital Comparators
    • Programmable Blanking Time
  • Synchronization of DPWM Waveforms Between Multiple UCD3138 family devices
  • 14-Channel, 12-Bit, 267-ksps General-Purpose ADC with Integrated
    • Programmable Averaging Filters
    • Dual Sample and Hold
  • Internal Temperature Sensor
  • Fully Programmable High-Performance 31.25 MHz, 32-Bit ARM7TDMI-S™ Processor
    • 32KB of Program Flash
    • 2KB of Data Flash with ECC
    • 4KB of Data RAM
    • 4KB of Boot ROM Enables Firmware Boot-Load in the Field via I2C or UART
  • Communication Peripherals
    • I2C/PMBus
    • 2 UARTs on UCD3138RGC (64-Pin QFN)
    • 1 UART on UCD3138RHA/UCD3138RMH
      (40-Pin QFN) and UCD3138RJA (40-Pin VQFN)
  • Timer Capture with Selectable Input Pins
  • Up to 5 Additional General Purpose Timers
  • Built In Watchdog: BOD and POR
  • 64-Pin QFN and 40-Pin QFN Packages
  • Operating Temperature: –40°C to 125°C
  • Fusion Digital Power Studio GUI Support