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

6.1 Product Family Comparison

UCD
FEATURE 3138
3138A
RHA/RMH		 3138064
3138064A
RMH		 3138
3138A
RGC		 3138064
3138064A
RGC		 3138128
3138128A
PFC		 3138A64
PFC
Package Offering 40 Pin QFN
(6mm x 6mm)		 40 Pin QFN
(6mm x 6mm)		 64 Pin QFN
( 9mm x 9mm)		 64 Pin QFN
(9mm x 9mm)		 80 Pin QFP
(14mm x 14mm)
(Includes leads)		 80 Pin QFP
(14mm x 14mm)
(Includes leads)
ARM7TDMI-S Core Processor 31.25 MHz 31.25 MHz 31.25 MHz 31.25 MHz 31.25 MHz 31.25 MHz
High Resolution DPWM Outputs (250ps Resolution) 8 8 8 8 8 8
Number of High Speed Independent Feedback Loops (# Regulated Output Voltages 3 3 3 3 3 3
12-bit, 256kps, General Purpose ADC Channels 7 7 14 14 15 15
Digital Comparators at ADC Outputs 4 4 4 4 4 4
Flash Memory (Program) 32 kB 64 kB 32 kB 64 kB 128 kB 64 kB
Number of Memory 32kB Flash Memory Banks 1 2 1 2 4 Only 1 bank of 64 kB Flash available
Flash Memory (Data) 2 kB 2 kB 2 kB 2 kB 2 kB 2 kB
RAM 4 kB 4 kB 4 kB 4 kB 8 kB 8 kB
Programmable Fault Inputs 1 + 2(1) 1 + 2(1) 4 2 + 2(1) 4 4
High Speed Analog Comparators with Cycle-by-Cycle Current Limiting 6 6 7 7 7 7
UART (SCI) 1(1) 1(1) 2 2 2 2
PMBus/I2C 1 1 1 1 1 1
Additional I2C 0 0 0 1(1) 1 1
SPI 0 0 0 1(1) 1 1
Timers 4 (16 bit) and
1 (24 bit)		 4 (16 bit) and
1 (24 bit)		 4 (16 bit) and
1 (24 bit)		 4 (16 bit) and
1 (24 bit)		 4 (16 bit) and
2 (24 bit)		 4 (16 bit) and
2 (24 bit)
Timer PWM Outputs 1(1) 1(1) 2 2 4 4
Timer Capture Inputs 2(1) 2(1) 1 + 3(1) 1 + 3(1) 2 + 2(1) 2 + 2(1)
Total Digital GPIOs 18 18 30 30 43 43
External Interrupts 0 0 1 1 1 1
External Crystal Clock Support no no no no Yes (pins #61, 62) Yes (pins #61, 62)
Peak Current Mode Control EADC2 Only All EADC channels EADC Only All EADC channels All EADC Channels All EADC Channels
(1) Represents an alternate pinout configuration that is programmable via firmware.