ZHCSAY5D march   2013  – april 2021 UCD3138064

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Functional Block Diagram
  5. Revision History
  6. Device Options
    1. 6.1 Device Comparison Table
    2. 6.2 Product Selection Matrix
  7. Pin Configuration and Functions
    1. 7.1 Pin Diagrams
    2. 7.2 Pin Functions
  8. Specifications
    1. 8.1  Absolute Maximum Ratings #GUID-DB56AA00-A5E9-4426-9853-ACC9CCD10656/SLUSB727999
    2. 8.2  Handling Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Electrical Characteristics
    6. 8.6  Timing Characteristics
    7. 8.7  PMBus/SMBus/I2C Timing
    8. 8.8  Power On Reset (POR) / Brown Out Reset (BOR)
    9. 8.9  Typical Clock Gating Power Savings
    10. 8.10 Typical Characteristics
  9. Detailed Description
    1. 9.1 Overview
      1. 9.1.1 ARM Processor
      2. 9.1.2 Memory
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  System Module
        1. 9.3.1.1 Address Decoder (DEC)
        2. 9.3.1.2 Memory Management Controller (MMC)
        3. 9.3.1.3 System Management (SYS)
        4. 9.3.1.4 Central Interrupt Module (CIM)
      2. 9.3.2  Peripherals
        1. 9.3.2.1 Digital Power Peripherals
          1. 9.3.2.1.1 Front End
          2. 9.3.2.1.2 DPWM Module
          3. 9.3.2.1.3 DPWM Events
          4. 9.3.2.1.4 High Resolution DPWM
          5. 9.3.2.1.5 Over Sampling
          6. 9.3.2.1.6 DPWM Interrupt Generation
          7. 9.3.2.1.7 DPWM Interrupt Scaling/Range
      3. 9.3.3  Automatic Mode Switching
        1. 9.3.3.1 Phase Shifted Full Bridge Example
        2. 9.3.3.2 LLC Example
        3. 9.3.3.3 Mechanism For Automatic Mode Switching
      4. 9.3.4  DPWMC, Edge Generation, Intramux
      5. 9.3.5  Filter
        1. 9.3.5.1 Loop Multiplexer
        2. 9.3.5.2 Fault Multiplexer
      6. 9.3.6  Communication Ports
        1. 9.3.6.1 SCI (UART) Serial Communication Interface
        2. 9.3.6.2 PMBUS/I2C
        3. 9.3.6.3 SPI
      7. 9.3.7  Real Time Clock
      8. 9.3.8  Timers
        1. 9.3.8.1 24-Bit Timer
        2. 9.3.8.2 16-Bit PWM Timers
        3. 9.3.8.3 Watchdog Timer
      9. 9.3.9  General Purpose ADC12
      10. 9.3.10 Miscellaneous Analog
      11. 9.3.11 Brownout
      12. 9.3.12 Global I/O
      13. 9.3.13 Temperature Sensor Control
      14. 9.3.14 I/O Mux Control
      15. 9.3.15 Current Sharing Control
      16. 9.3.16 Temperature Reference
    4. 9.4 Device Functional Modes
      1. 9.4.1 DPWM Modes Of Operation
        1. 9.4.1.1 Normal Mode
        2. 9.4.1.2 Phase Shifting
        3. 9.4.1.3 DPWM Multiple Output Mode
        4. 9.4.1.4 DPWM Resonant Mode
      2. 9.4.2 Triangular Mode
      3. 9.4.3 Leading Edge Mode
    5. 9.5 Memory
      1. 9.5.1 Register Maps
        1. 9.5.1.1 CPU Memory Map and Interrupts
          1. 9.5.1.1.1 Memory Map (After Reset Operation)
          2. 9.5.1.1.2 Memory Map (Normal Operation)
          3. 9.5.1.1.3 Memory Map (System and Peripherals Blocks)
        2. 9.5.1.2 Boot ROM
        3. 9.5.1.3 Customer Boot Program
        4. 9.5.1.4 Flash Management
        5. 9.5.1.5 Synchronous Rectifier MOSFET Ramp and IDE Calculation
  10. 10Applications 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
          1. 10.2.2.2.1 DPWM Synchronization
        3. 10.2.2.3 Fixed Signals to Bridge
        4. 10.2.2.4 Dynamic Signals to Bridge
        5. 10.2.2.5 System Initialization for PCM
          1. 10.2.2.5.1 Use of Front Ends and Filters in PSFB
          2. 10.2.2.5.2 Peak Current Detection
          3. 10.2.2.5.3 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.      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 External Clock
        4. 12.1.4.4 GPIOS
        5. 12.1.4.5 DPWM PINS
        6. 12.1.4.6 EAP and EAN Pins
        7. 12.1.4.7 ADC Pins
          1. 12.1.4.7.1 RESET Pin
      5. 12.1.4 UART Communication Port
      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
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Trademarks
    4. 13.4 静电放电警告
    5. 13.5 术语表
  14. 14Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Filter

The UCD3138x filter is a PID filter with many enhancements for power supply control. Some of its features include:

  • Traditional PID Architecture
  • Programmable non-linear limits for automated modification of filter coefficients based on received EADC error
  • Multiple coefficient sets fully configurable by firmware
  • Full 24-bit precision throughout filter calculations
  • Programmable clamps on integrator branch and filter output
  • Ability to load values into internal filter registers while system is running
  • Ability to stall calculations on any of the individual filter branches
  • Ability to turn off calculations on any of the individual filter branches
  • Duty cycle, resonant period, or phase shift generation based on filter output.
  • Flux balancing
  • Voltage feed forward

Here is the first section of the Filter :

GUID-DED7DFFE-3100-49B9-8C17-B8938D9C3564-low.gifFigure 9-10 First Section of the Filter

The filter input, Xn, generally comes from a front end. Then there are three branches, P, I. and D. Note that the D branch also has a pole, Kd Alpha. Clamps are provided both on the I branch and on the D alpha pole.

The filter also supports a nonlinear mode, where up to 7 different sets of coefficients can be selected depending on the magnitude of the error input Xn. This can be used to increase the filter gain for higher errors to improve transient response.

Here is the output section of the filter (S0.23 means that there is 1 sign bit, 0 integer bits and 23 fractional bits).:

GUID-033CC6C8-3B43-4EE1-BB64-337035BC6552-low.gifFigure 9-11 Output Section of the Filter

This section combines the P, I, and D sections, and provides for saturation, scaling, and clamping.

There is a final section for the filter, which permits its output to be matched to the DPWM:

GUID-95FE0C99-36FF-40DB-8414-92CDEC1509AA-low.gif
GUID-DE3CB19B-0559-428C-BC94-B205823D79B5-low.gif
Figure 9-12 Final Section for the Filter

This permits the filter output to be multiplied by a variety of correction factors to match the DPWM Period, to provide for Voltage Feed Forward, or for other purposes. After this, there is another clamp. For resonant mode, the filter can be used to generate both period and duty cycle.