Texas Instruments UCD3138PSFBEVM-027 User Manual
  1. Manuals
  2. Brands
  3. Texas Instruments Manuals
  4. Power Supply
  5. UCD3138PSFBEVM-027
  6. User manual
Texas Instruments UCD3138PSFBEVM-027 User Manual

Texas Instruments UCD3138PSFBEVM-027 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Using the UCD3138PSFBEVM-027
User's Guide
Literature Number: SLUUAK4
August 2013

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the UCD3138PSFBEVM-027 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Texas Instruments UCD3138PSFBEVM-027

Summary of Contents for Texas Instruments UCD3138PSFBEVM-027

  • Page 1 Using the UCD3138PSFBEVM-027 User's Guide Literature Number: SLUUAK4 August 2013...
  • Page 2 Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
  • Page 3 Using the UCD3138PSFBEVM-027 Introduction This evaluation model (EVM), the UCD3138PSFBEVM-027, is used to evaluate the UCD3138 64-pin digital control IC in an off-line power-converter application and then to aid in its design. The EVM is a standalone phase-shifted full-bridge DC-DC power converter. The EVM is used together with a control card, the UCD3138CC64EVM-030, which is an EVM placed on the UCD3138RGC.

  • Page 4: Typical Applications

    Please contact TI for details on the firmware. The UCD3138PSFBEVM-027 accepts a DC input from 370 to 400 VDC, and outputs a typical 12 VDC with full-load output power at 360 W, or full output current of 30 NOTE: This EVM does not have an input fuse.

  • Page 5: Performance Specifications

    Performance Specifications www.ti.com Performance Specifications Table 1. UCD3138PSFBEVM-027 Performance Specifications PARAMETER TEST CONDITIONS UNITS Input Characteristics Voltage operation range Input UVLO On Input UVLO Off Input = 370 VDC, full load = 30 A Input current Input = 385 VDC, full load = 30 A...
  • Page 6 Schematics www.ti.com Schematics Figure 1. UCD3138PSFBEVM-027 Schematics, Sheet 1 of 2 Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 7 Schematics www.ti.com Figure 2. UCD3138PSFBEVM-027 Schematics Sheet, 2 of 2 SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 8 Schematics www.ti.com Figure 3. UCD3138CC64EVM-030 Schematics, Sheet 1 of 2 Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 9 Schematics www.ti.com Figure 4. UCD3138CC64EVM-030 Schematics, Sheet 2 of 2 SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 10: Test Equipment

    AWG, with the total wire length less than 8 ft (4-ft input and 4-ft return). Recommended Test Setup PWR030 +VIN TP17 +VOUT -VIN -VOUT TP15 PWR050 Figure 5. UCD3138PSFBEVM-027 Recommended Test Setup Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 11: Test Points

    Test Points www.ti.com Figure 6. Orientation of the UCD3138CC64EVM-030 Board on the UCD3138PSFBEVM-027 Board Test Points Table 2. UCD3138PSFBEVM-027 List of Test Points Test Points Name Description +VIN Positive input voltage –VIN Input voltage return BUS+ Primary high-side current-sense input...
  • Page 12 Terminals www.ti.com Table 2. UCD3138PSFBEVM-027 List of Test Points (continued) Test Points Name Description TP25 AGND Analog ground TP26 QT1_Gate QT1 gate TP27 QB1_Gate QB1 gate TP28 QT2_Gate QT2 gate TP29 QB2_Gate QB2 gate TP30 Not used TP31 Not used TP32 3.3V...

  • Page 13: Test Procedure

    3. Use the UCD3138PSFBEVM-027 and UCD3138CC64EVM-030 for this measurement which are included this EVM package along with the USB-TO-GPIO. 4. Install the UCD3138CC64EVM-030 board onto the UCD3138PSFBEVM-027 first. Take care with the alignment and orientation of the two boards to avoid damage.

  • Page 14: Load Regulation

    Performance Data and Typical Characteristics Curves Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure 15 present typical performance curves for the UCD3138PSFBEVM-027. Efficiency 370 VDC 385 VDC 400 VDC Load Current (A) C001 Figure 7. UCD3138PSFBEVM-027 Efficiency Load Regulation 12.3 12.1 11.9 11.7...

  • Page 15: Switching Waveforms

    Figure 10. Gate-Drive Signals at Full Load Ch1 = QT1 gate to GND (TP26) Ch2 = QB2 Vgs (TP29) Ch3 = QSYN1 Vgs (TP20) Ch4 = QSYN2 Vgs (TP21) SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 16: Output Voltage Ripple

    Ch2 = QB1 Vds Ch3 = QB2 Vgs Ch4 = QB2 Vds Output Voltage Ripple Figure 12. Output Voltage Ripple, 385 VDC and Full Load Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 17 Performance Data and Typical Characteristics Curves www.ti.com Figure 13. Output Voltage Ripple, 385 VDC and Half Load Output Turnon Figure 14. Output Turnon, 385 VDC With Load Range SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 18: Evm Assembly Drawing And Pcb Layout

    Figure 21 show the design of the UCD3138PSFBEVM-027 printed circuit board (PCB). The PCB dimensions are L × W = 8 × 6 in, the PCB material is FR4, or compatible, four layers with 2-oz copper on each layer. Figure 16. UCD3138PSFBEVM-027 Top-Layer Assembly Drawing (Top view) Using the UCD3138PSFBEVM-027 SLUUAK4 –...
  • Page 19 EVM Assembly Drawing and PCB layout www.ti.com Figure 17. UCD3138PSFBEVM-027 Bottom-Layer Assembly Drawing (Bottom view) Figure 18. UCD3138PSFBEVM-027 Top Copper (Top View) SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 20 EVM Assembly Drawing and PCB layout www.ti.com Figure 19. UCD3138PSFBEVM-027 Internal Layer, One (Top View) Figure 20. UCD3138PSFBEVM-027 Internal Layer, Two (Top View) Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 21: Bill Of Materials

    Capacitor, Ceramic, 50 V, X7R, 10% 1206 47 µF Capacitor, Alum Electrolytic, 450 V, ±20% 10 × 20 mm LGU2W470MELY NichiCon STD = standard SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 22 Resistor, Chip, 1/10 W, 1% 0603 R25, R27, R43, R47, Resistor, Chip, 1/8 W, 1% 0805 R28, R71 Resistor, Chip, ¼ W, 1% 1206 Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 23 Control Card, UCD3138 control card, PCB assembly 3.4 × 1.8 in UCD3138CC64EVM-030 PWR050 is a bias board and the design documents are found in the UCD3138PSFBEVM-027 product folder on www.ti.com. SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback...
  • Page 24 AD06 temp AD07 GPIO2 Vin_Scale AD08 GPIO3 AD09 0.1x Vo ARM7 ISEC AD13 PMBus UART0 UART1 Memory Figure 22. Phase-Shifted Full-Bridge Converter Block Diagram Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 25 Current Limit Brown Out Detection AD06 VREG Digital 1.8-V Comparators JTAG Voltage AD07 Regulator AGND Figure 23. UCD3138 Pin Definition in Phase-Shifted Full-Bridge Control SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 26 The following lists the DPWM configuration for the phase-shift full bridge converter: DPWM3A to VGS_QB1 DPWM3B to VGS_QT1 DPWM2A to VGS_QT2 DPWM2B to VGS_QB2 DPWM1B to VGS_QSYN2 and QGS_QSYN4 DPWM0B to VGS_QSYN1 and QGS_QSYN3 Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 27 12.3.2 Bias Power Supply The bias supply is a flyback converter using the UCC28600 controller from TI. The bias is an independent daughter-card, the PWR050. The design files (SLUR924) are located in the UCD3138PSFBEVM-027 product folder on www.ti.com. Figure 25 shows the schematic of the PWR050.
  • Page 28 400V = 1.5V PIN2 220pF -VIN PWRGND 12.1k 4.99k 16.9k 220pF PWRGND 33.2k 220pF 1.37k 100nF TL431AQDBZ 4.42k Figure 25. PWR050 Bias Board Schematics Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 29 AD13 also has a mechanism for a fast latch-off over current and the means to implement either master- and-slave or average-mode current sharing. Figure 26. Load-Current Sensing Connections Figure 27. Load-Current-Sensing Conditioning Circuit SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 30: Serial Port Interface

    This LED turns green when the output voltage is within the thresholds defined P_GOOD by PMBUS_CMD_POWER_GOOD_ON and PMBUS_CMD_POWER_GOOD_OFF[1]. AC_P_FAIL_OUT This LED is not used. Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 31 Description of the Digital Phase-Shifted Full-Bridge Converter www.ti.com 12.3.7 EVM Resource Allocation The UCD3138PSFBEVM-027 is controlled by a control card, the UCD3138CC64EVM-030, through two 40-pin connectors, P1 and P2. Table 6 lists the definitions of P1 and P2 on the UCD3138PSFBEVM-027 board.
  • Page 32 Output voltage sensing, or I_PRI P2-37 EAN2 Analog ground (GND) P2-38 EAP2 Output current sensing P2-39 EAN1 Analog ground GND2 (-RS) P2-40 EAP1 Output voltage sensing (+RS) Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 33 The firmware included with the EVM includes two functions called by the FIQ: • Constant Power and Constant Current • Cycle-by-cycle current limit The FIQ interrupt is called to respond every four switching cycles. SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 34 In such a case, the system enters protection operation by entering CPCC mode. If load power still continues to increase, output shutdown is triggered. Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 35: Faults And Warnings

    Report and latch off IOUT Over Report Report and latch off Over Report Cycle-by-cycle limiting SR (QSYN3) Over Report Report and latch off Temperature SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 36 UCD3138. The current signal is sent into UCD3138 through AD06 to create cycle-by-cycle current-limit control. To prevent switching spikes from triggering the comparator, a blanking time is programmed. Figure 32. Cycle-by-cycle Current-Limit Sensing Circuit Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 37 34, the system latches off until the on command toggles off and on again, or recycles the input power. Figure 33. CCPCC Operation Figure 34. CPCC Default Values Adjusted Through GUI SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 38 QSYNC3 heat sink. At this location U10 senses the temperature of the secondary- side MOSFETs. Figure 36. Temperature Detection Circuit Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 39: Special Operation Modes

    NOTE: The burst operation mode is still in development for this EVM. Please contact TI for the latest development information. Figure 37. Burst Operation Timing Diagram SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 40 This feature is not available during start, burst operation, or cycle-by-cycle current limit. Ishare Bus ISHARE2 ISHARE1 AD02 AD02 Iout1 Iout2 AD13 AD13 Figure 38. Current-Sharing Operation Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 41 +RS and –RS are connected to +VO and 12V_RETURN through the resistors, R55 and R54, respectively. Figure 39. Oring Control SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 42 A low-pass filter usually exists in a control loop of its feedback path. The low-pass filter adds a pole to the loop as shown in Equation H (s) K Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 43 ´ ´ ´ ´ ´ ´ ç ÷ 1000 KCOMP 2 ç ÷ , α) - a ´ ´ ´ è ø PRD 1 SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 44 EVM with existing hardware and firmware. Device GUI relates to the accessing of internal registers and memories of a particular device. The UCD3138PSFBEVM-027 is used with the UCD3138CC64EVM-030 control card where the UCD3138 device is placed. The firmware for control is loaded onto UCD3138CC64EVM-030 board through the Device GUI.

  • Page 45: Graphical User Interface (Gui)

    Figure 5. Use 14 AWG wire or equivalent. 2. Connect the output load to the board. Use a 14-AWG wire or equivalent. 3. Plug the control card UCD3138CC64EVM-030 (PWR030) into UCD3138PSFBEVM-027 with the orientation in Figure 5 Figure 4. Confirm that the control card does not have a jumper on J2, and install a jumper on J6.
  • Page 46 Other icons, such as UCD3K Device GUI, are displayed on the desktop. For more information on the GUI installation, see the UCD3138CC64EVM-030 user’s guide (SLUU886). Figure 43. GUI Shortcut Location Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 47 GUI and device is successful, a similar-looking screen as shown in Figure 44 is seen. The following sections describes how to evaluate the module using the GUI. Figure 44. Designer GUI Overview SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 48: Operation Monitoring

    If a fault occurred, the corresponding entry is highlighted in red. Warnings, although not considered faults, remind the user that those entries could require attention. Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 49 To add a standard command, modify the bit mask and the GUI automatically displays the new command. For additional details on using this tool, please contact TI. SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 50 360 W. Please contact TI if any uncertainty exists that must be resolved. The CPCC feature is disabled by default. Figure 47. Configure CPCC Using the UCD3138PSFBEVM-027 SLUUAK4 – August 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 51 4. Reference Guide, UCD3138 Monitoring and Communications Programmer’s Manual (SLUU996) 5. Reference Guide, UCD3138 ARM and Digital System Programmer’s Manual (SLUU994) 6. User's Guide, UCD3138 Isolated Power Fusion GUI, (please contact TI) SLUUAK4 – August 2013 Using the UCD3138PSFBEVM-027 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 52: Regulatory Compliance Information

    Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
  • Page 53 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 54 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
  • Page 55 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2013, Texas Instruments Incorporated...

  • Page 56: Important Notice

    IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
  • Page 57 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments UCD3138PSFBEVM-027...

Table of Contents