DEMO MANUAL DC2252A-A LTC3882EUJ Programming Board for Dual Output DC/DC Voltage Mode Controller with Digital Power System Management Description Demonstration circuit 2252A-A is a lab tool to program and verify the EEPROM inside the LTC®3882 IC. The DC2252A-A is shipped with a LTC3882 placed in the clamshell style programming socket. The EEPROM contains the factory default configuration. The LTpowerPlayTM .proj file that corresponds to the factory default can be found in the GUI. In order to properly verify the contents of the EEPROM, download and install the LTpowerPlay software (GUI). The software can be downloaded from: http://www.linear.com/ltpowerplay You also need a Linear Technology USB to I2C/SMBus/ PMBus Controller, DC1613A. Demo System Required Hardware Windows PC nn USB to I2C/SMBus/PMBus Controller, DC1613A nn DC2252A-A nn Demo System Required Software nn LTpowerPlay USB CABLE LTC3882 FEATURES PMBus/I2C Compliant Serial Interface nn Monitor Voltage, Current, Temperature and Faults nn Digitally Programmable Voltage, Current Limit, SoftStart/Stop, Sequencing, Margining, AVP and UV/OV Thresholds nn Programmable PWM Frequency or External Clock Synchronization from 250kHz to 1.25MHz nn ±0.5% Output Voltage Accuracy nn Internal EEPROM with Fault Logging nn Wide V Range: 3V to 38V IN nn V Range: 0.5V to 5.25V OUT nn Analog Leading-Edge Voltage Mode Control Loop nn Accurate PolyPhase® Current Sharing nn Available in a 40-Pin (6mm × 6mm) QFN Package nn Design files for this circuit board are available at http://www.linear.com/demo/DC2252A-A L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. USB TO I2C/PMBus CONTROLLER DC1613A RIBBON CABLE LTC3882 PROGRAMMING BOARD DC2252A-A dc3882aa F01 Figure 1. LTC3882 Programming Setup Using DC2252A-A dc2252aaf 1 DEMO MANUAL DC2252A-A Quick Start Procedure Demonstration circuit 2252A-A makes it easy to program and verify the EEPROM contents of the LTC3882. 4.Plug one end of the USB cable to your PC. Plug other end of USB cable into the I2C/SMBus/PMBus controller. 1.Make sure jumpers are in the following positions: 5.Plug the ribbon cable of DC1613A into J2. See Figure 3. JUMPER POSITION FUNCTION JP1 DISABLE Disable Write Protection of LTC3882 SW1 ON Provide 3.3V to LTC3882 VDD33 Pin 2.Open the lid of the socket SKT1. Verify there is an IC inside and in the correct direction (White dot on IC matches with PIN 1 on PCB silkscreen). See Figure 2. 3.Close the lid. It will snap into place. NOTE. Removal and insertion of the IC should be done with either a tweezers or a vacuum suction device. 6.On your PC, launch LTpowerPlay. LTpowerPlay will identify the DC2252A-A and launch the appropriate GUI. See Figure 4. NOTE. You will see an Under Temperature (UT) Fault. This is normal since the temperature sensing pin is floating. Ignore this fault at the moment. 7.Change the GUI parameters according to your system button to open an requirements. Or, you can click existing project file. 8.After you finish the design, click to save the project file. Figure 2. Open Shell. Verify IC Installed 2 dc2252aaf DEMO MANUAL DC2252A-A Quick Start Procedure Figure 3. DC1613A Ribbon Cable Installation TOOLBAR “Chip Dashboard” View “System Tree” View “Config” View “Telemetry” View “Quick Inspect” View “Telemetry Plot” View “Idealized On/Off Waveforms” View dc3882aa F04 Figure 4. LTpowerPlay Interface of Programming the LTC3882 dc2252aaf 3 DEMO MANUAL DC2252A-A Quick Start Procedure Powering Down the Board Between Programming Operations Disconnect the USB cable from the DC1613A before removing or inserting a LTC3882 into the programming socket. 3.Verify the EEPROM within the DC2252A-A contains the factory defaults. What You Can Do With the DC2252A-A 1.Compare the contents of the EEPROM in the LTC3882 against your Project or Hex file. C:\Program Files\Linear Technology\LTpowerPlay\ project files\democircuits\DC2252A a. From the LTpowerPlay, load the factory defaults project file. This file is located at: b.Click the Verify button. 2.Reprogram the contents of the EEPROM in the LTC3882 using your project or Hex File. Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 1 SKT1 SOCKET, 6X6 QFN BGA FLAT LEAD LIDDED, THRU-HOLE PLASTRONICS, 40QN50S16060-B 2 2 C14, C16 CAP., 0.10µF, X7R, 16V, 10%, 0603 AVX, 0603YC104KAT2A 3 2 C20, C21 CAP., 1µF, X7R, 16V, 10%, 0603 AVX, 0603YC105KAT2A TDK, C3216X5R1C475K115AA 4 2 C15, C17 CAP., 4.7µF, X5R, 16V, 10%, 1206 5 1 D3 LED, GREEN, WATER CLEAR, 571nm @ 5mA, 4.5~28mcd @ 5 mA, 0603 LITE ON, LTST-C193KGKT-5A 6 1 R19 RES., 200Ω, 1/8W, 1%, 0805 VISHAY, CRCW0805200RFKEA 7 4 R29, R31, R32, R33 RES., 10k, 1/8W, 1%, 0805 VISHAY, CRCW080510K0FKEA 8 2 R36, R37 RES., 4.99k, 1/8W, 1%, 0805 VISHAY, CRCW08054K99FKEA 9 1 R38 RES., 1k, 1/8W, 1%, 0805 VISHAY, CRCW08051K00FKEA 10 4 R41, R45, R47, R54 RES., 0Ω, 1/8W, 0805 VISHAY, CRCW08050000Z0EA 11 0 R44, R46, R49, R50, R51, RES., OPTION, 0805 R52, R53, R55(OPT) 13 1 U2 OPT. I.C., EEPROM, I2C, 2kbit, 400kHZ, 8-SOIC MICROCHIP, 24LC025-I/SN 14 1 JP1 CONN., HEADER, 1X3, 2mm SAMTEC, TMM-103-02-L-S 15 2 JP6, JP7 CONN., HEADER, 1X4, 2mm SAMTEC, TMM-104-02-L-S 16 1 J2 CONN., HEADER, SHROUDED, 2X6, 2mm FCI, 98414-G06-12ULF 17 3 JP1, JP6, JP7 SHUNT, 2mm SAMTEC, 2SN-BK-G 18 1 SW1 SWITCH, SUB-MINIATURE SLIDE, DPDT, 6VDC, 0.3A, THRU-HOLE C&K COMPONENTS, JS202011CQN 19 9 TP1, TP4, TP5, TP7, TP8, TEST POINT, TURRET, 0.064" MTG. HOLE TP9, TP10, TP11, TP13 MILL-MAX, 2308-2-00-80-00-00-07-0 20 4 MH1, MH2, MH3, MH4 STANDOFF, NYLON, SNAP-ON, 0.250" KEYSTONE, 8831 21 0 U1 TO BE INSTALLED DURING TEST I.C., DUAL OUTPUT POLYPHASE STEP-DOWN DC/DC VOLTAGE MODE CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT, QFN40-UJ, 6mm x 6mm LINEAR TECH, LTC3882EUJ#PBF 22 1 PCB, DC2252A DEMO CIRCUIT 2252A 23 1 STENCIL, DC2252A (BOTTOM) STENCIL DC2252A 4 dc2252aaf DEMO MANUAL DC2252A-A Schematic Diagram 5 4 3 2 1 REVISION HISTORY ECO REV __ 30 28 SKT1 4 5 27 26 U1* 6 R29 R46 * 10.0K JP1 TP5 R45 * C16 0.1uF R44 * C17 4.7uF 1206 R41 * C14 0.1uF CHP33 VDD33 C TP4 CHP25 C15 4.7uF 1206 20 19 18 17 16 21 15 22 14 9 10 13 23 12 8 11 24 GPIO0 R47 * 25 7 ALERTb ENABLE WP DISABLE 29 3 SDA DATE HAORAN W. 6-05-14 D 2 SCL APPROVED PRODUCTION R55 * 1 C 1 31 32 34 35 36 37 38 39 41 33 R53 R54 * * TP13 40 GND D DESCRIPTION TP1 R19 200 ASEL0 2 R ASEL1 R49 (OPT) 1 H 2 R 3 L 4 1 H L R50 (OPT) JP6 R51 (OPT) B * 3 4 B JP7 1. ALL RESISTORS ARE 0805 ALL CAPACITORS ARE 0603. -B LTC3882EUJ-1 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 4 2 R31 10.0K OFF OPT 0 LTC Confidential-For Customer Use Only LTC3882 / LTC3882-1 PROGRAMMING BOARD LTC3882EUJ FAMILY DEMO CIRCUIT 2252A IC NO. N/A SCALE = NONE Wednesday, January 28, 2015 DATE: REV. 1 SHEET 1 3 2 1 3 2 1 OF 2 3.3V C20 1uF R32 10.0K A TITLE: SCHEMATIC D 6 3 SW1 R33 10.0K OPT 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com 4 1 5 D 0 TECHNOLOGY Fax: (408)434-0507 TP7 ON R41,R45,R47,R54 R44,R46,R53,R55 APPROVALS SIZE 2. INSTALL SHUNTS AS SHOWN. 5 LTC3882EUJ LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. HZ VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. HAORAN W. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. NOTE: UNLESS OTHERWISE SPECIFIED 5 U1 -A R52 (OPT) CUSTOMER NOTICE A ASSY VDD33 R38 1K D3 SCL GREEN TP8 SDA TP10 ALERTb TP9 SCL SDA ALERTb C C TP11 U2 C21 24LC025-I/SN 1uF J2 1 TO DC1613A B AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN GPIO_2 GND AUXSCL AUXSDA 2 1 2 3 4 5 6 7 8 9 10 11 12 3 4 A0 VCC A1 WP A2 SCL VSS SDA R36 R37 4.99K 4.99K 8 7 6 5 B CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. HZ VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. HAORAN W. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A TECHNOLOGY THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. LTC3882 / LTC3882-1 PROGRAMMING BOARD 4 N/A SCALE = NONE 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC SIZE 5 5V DATE: IC NO. LTC3882EUJ FAMILY DEMO CIRCUIT 2252A Wednesday, January 28, 2015 2 A REV. 1 SHEET 2 OF 2 1 Figure 5. DC2252A-A Demo Circuit Schematic dc2252aaf Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 5 DEMO MANUAL DC2252A-A DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation 6 dc2252aaf Linear Technology Corporation LT 0515 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2015