Texas Instruments UCD9224EVM-464 User Manual
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Texas Instruments UCD9224EVM-464 User Manual

Texas Instruments UCD9224EVM-464 User Manual

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Using the UCD9224EVM-464
User's Guide
Literature Number: SLUU443
March 2011

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Summary of Contents for Texas Instruments UCD9224EVM-464

  • Page 1 Using the UCD9224EVM-464 User's Guide Literature Number: SLUU443 March 2011...

  • Page 2: Typical Applications

    MOSFETS, current sensing and protection features) needed to realize two voltage phases/rails. Description The UCD9224EVM-464 includes the Digital Power Controller paired with the UCD7242 driver on the PTD08D210W module to create a power system consisting of two single-phase, point-of-load (POL) power rails, each capable of up to 10 A of output current.
  • Page 3 Supported by Fusion Digital Power™ (UCD9224 Datasheet) Designer, a Full Featured PC Based Design Tool to Simulate, Configure, and Monitor Power Supply Performance SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 4 UVLO and OVLO Circuits Ensure Proper Drive Voltage • Rated From –40°C to 125°C Junction Temperature • RoHS Compliant • Accurate On-Die Current Sensing (±5%) UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...

  • Page 5: Electrical Performance Specifications

    Electrical Performance Specifications www.ti.com Electrical Performance Specifications Table 1. UCD9224EVM-464 Electrical Performance Specifications PARAMETER TEST CONDITIONS UNITS Input Characteristics Voltage range As configured, EVM input capable of 4.75 V to 14.0 V 10.8 13.2 No load input current Controller turn-on voltage Input voltage above which outputs become enabled 11.0...
  • Page 6 Assembly / Schematic Layouts www.ti.com Assembly / Schematic Layouts Figure 1. Top Assembly UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 7 Assembly / Schematic Layouts www.ti.com Figure 2. Schematic 1 SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 8 Assembly / Schematic Layouts www.ti.com Figure 3. Schematic 2 UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...

  • Page 9: Test Equipment

    • Vista (64 – bit untested, should be compatible) • 7 (32 or 64 – bit) Texas Instruments’ USB Interface Adapter EVM - P/N USB-to-GPIO, User's Guide - SLLU093 Fusion Digital Power Designer Software Installer Executable File: fusion_digital_power_designer_download_for_power_controllers_version_1_8_6.exe or newer SLUU443 –...

  • Page 10: Recommended Test Setup

    Test Setup www.ti.com Recommended Test Setup Figure 4. UCD9224EVM-464 Recommended Test Set Up UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...

  • Page 11: List Of Connectors

    J7 is not populated by default and a shunt trace connects Pins 1 and 2 on the EVM. J9 (DC power jack) replaces J1 to allow use of a standard 5.5mm/2.5mm power adapter plug. SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 12 External fault input 1B TP17 FLT-3A External fault input 3A TP18 CS-3A Power stage 3A current sense input and input to analog comparator 4 UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 13 Test Procedure The UCD9224EVM-464 is provided with a default configuration that will allow the user to immediately power up the EVM and begin testing as either a stand-alone power solution or as a “networked” power system when accessing the PMBus™ interface.

  • Page 14: Output Voltage

    4. Enable the external input power supply. 5. Review captured waveform and active high PGOOD signal. Figure 5. V (Yellow), V (Blue) and PGOOD (Red) Start-Up Timing OUT1 OUT2 UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 15 LED will illuminate when the adapter has been connected with the system. 2. With the UCD9224EVM-464 still powered, launch the Fusion GUI by double clicking the desktop icon or, alternately, navigating to the application icon in the program folder through the Windows Start Menu (default location: Start\All Programs\Texas Instruments Fusion Digital Power Designer\Fusion Digital Power Designer).
  • Page 16 This contrasts to Under Voltage Warning which occurs when the unit is operating and the input voltage falls below the V UV Warning level. UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 17 Logged faults can be cleared with the Clear Logged Faults button. Power cycle the UCD9224 EVM and the configuration will be returned to the original state before the above changes were implemented. SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 18 When the download is complete, click the Next > button then the OK button to complete the project file import. The Fusion GUI will perform a device reset after which the UCD9224EVM-464 should be restored to its original configuration settings. Figure 8. Configuration File Import Settings UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 –...

  • Page 19: Performance Data And Typical Characteristic Curves

    Performance Data and Typical Characteristic Curves www.ti.com Performance Data and Typical Characteristic Curves Figure 9 through Figure 12 present typical performance curves for UCD9224EVM-464. Efficiency EFFICIENCY LOAD CURRENT 10.0 V 12.0 V 13.2 V – Load Current - A LOAD Figure 9.
  • Page 20 Performance Data and Typical Characteristic Curves www.ti.com Figure 11. 2.5-V Output Ripple Figure 12. 1.2-V Output Ripple UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...

  • Page 21: Evm Assembly Drawing And Pcb Layout

    EVM Assembly Drawing and PCB layout The following figures (Figure 13 through Figure 17) show the design of the UCD9224EVM-464 printed circuit board. Figure 13. Top Layer Assembly Drawing (top view) SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback ©...
  • Page 22 EVM Assembly Drawing and PCB layout www.ti.com Figure 14. Top Copper (top view) UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 23 EVM Assembly Drawing and PCB layout www.ti.com Figure 15. Internal Layer 1 (top view) SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 24 EVM Assembly Drawing and PCB layout www.ti.com Figure 16. Internal Layer 2 (top view) UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443 – March 2011 Submit Documentation Feedback © 2011, Texas Instruments Incorporated...
  • Page 25 EVM Assembly Drawing and PCB layout www.ti.com Figure 17. Bottom Copper (bottom view) SLUU443 – March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL Submit Documentation Feedback © 2011, Texas Instruments Incorporated...

  • Page 26: List Of Materials

    List of Materials www.ti.com List of Materials The EVM components list according to the schematic shown in Figure 2 Figure Table 4. UCD9224EVM-464 List of Materials REFERE DESCRIPTION MANUFACTURER PART NUMBER C1, C2, Capacitor, ceramic, 4.7 µF, 25 V, X5R, 0805...

  • Page 27: Evaluation Board/Kit Important Notice

    Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.

  • Page 28: Important Notice

    IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

  • Page 29: Texas Instruments

    Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments UCD9224EVM-464...

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