DEMO MANUAL DC2277A LTC3886 UKG Package Programming Board for Dual Output Step Down DC/DC Controller with Digital Power System Management Description LTC3886 FEATURES Demonstration circuit 2277A contains the circuitry needed to program and verify the EEPROM of the LTC®3886 in the UKG package and that is its only purpose. The DC2277A is shipped with a LTC3886 installed in the clamshell style programming socket and its EEPROM contains the factory default configuration. The LTpowerPlay™ #.proj file that corresponds to the factory default can be found in the GUI. n 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 PMBus Controller, DC1613A or DC1427A. I2C/SMBus/ DEMO SYSTEM REQUIRED HARDWARE n n n Windows PC I2C/SMBus/PMBus USB to DC1427A Controller, DC1613A or DC2277A n Telemetry read-back includes VIN, IIN, VOUT, IOUT, temperature and faults Programmable voltage, current limit, digital soft-start/ stop, sequencing, margining, control loop compensation, OV/UV and frequency synchronization (100kHz to 750kHz) n ±0.5% output voltage accuracy over temperature n Integrated 16-bit ADC and 12-bit DAC n Internal EEPROM and fault logging n Integrated powerful N-channel MOSFET gate drivers n Wide VIN range: 4.5V to 60V n VOUT range: 0.5V to 13.8V n Supports power-up into pre-biased load n Analog current mode control loop n Accurate PolyPhase® current sharing for up to 6 phases n Available in a 52-lead (7mm × 8mm) QFN package Design files for this circuit board are available at http://www.linear.com/demo/DC2277A DEMO SYSTEM REQUIRED SOFTWARE n n PMBus/I2C compliant serial interface L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. LTpowerPlay™ USB CABLE USB to RIBBON CABLE Dongle DC1613A or DC1427A I2C/PMBus LTC3886 PROGRAMMING BOARD DC2277A dc2277a F01 Figure 1. LTC3886 Programming Setup Using the DC2277A DC2277af 1 DEMO MANUAL DC2277A Quick Start Procedure Demonstration circuit 2277A makes it easy to program and verify the EEPROM contents of the LTC3886 in the UKG package. 5.If you have a DC1427A, plug the ribbon cable into J1. If you have a DC1613A, plug the ribbon cable into J2. See Figure 3. 1. Make sure jumpers are in the following positions: 6.On your PC, launch LTpowerPlay. LTpowerPlay will identify the DC2277A and launch the appropriate GUI. See Figure 4. JUMPER POSITION FUNCTION JP1 OFF Write Protection of LTC3886 JP2 ON Write Protection of Identification EEPROM 2. Open the lid of the socket. Verify there is an LTC3886 inside. 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. 4.Plug one end of the USB cable to your PC. Plug other end of USB cable into the I2C/SMBus/PMBus controller. NOTE. You will see an Under Temperature (UT) Fault. This is normal since the temperature sensing pin is grounded. 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 file to save the project Figure 2. Open Shell. Verify IC Installed 2 DC2277af DEMO MANUAL DC2277A Quick Start Procedure Figure 3. DC1613A Ribbon Cable Installation DC2277af 3 DEMO MANUAL DC2277A Quick Start Procedure POWERING DOWN THE BOARD BETWEEN PROGRAMMING OPERATIONS Disconnect the USB cable from the DC1427A/DC1613A before removing or inserting a LTC3886UKG into the programming socket. 3. Verify the EEPROM within the DC2277A contains the factory defaults. n C:\Program Files\Linear Technology\LTpowerPlay\ project files\ltc3886\datasheet_defaults.proj WHAT YOU CAN DO WITH THE DC2277A 1. Compare the contents of the EEPROM in the LTC3886UKG against your project or hex file. From the LTpowerPlay interface, load the factory defaults project file. This file is located at: n Click the Verify button. 2. Reprogram the contents of the EEPROM in the LTC3886UKG using your project or hex file. Toolbar ‘Chip Dashboard’ View ‘System Tree’ View ‘Telemetry’ View ‘Quick Inspect’ View ‘Config’ View ‘Telemetry Plot’ View ‘Idealized On/OFF Waveforms’ View Figure 4. LTpowerPlay Interface of Programming the LTC3886 4 DC2277af DEMO MANUAL DC2277A Parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 4 C11, C14, C16, C20 CAP., 0.1µF, X7R, 16V, 10%, 0603 NIC, NMC0603X7R104K16TRF 2 1 C12 CAP., 0.01µF, X7R, 25V, 10%, 0603 AVX, 06033C103KAT2A 3 1 C13 CAP., 10µF, X5R, 6.3V, 10%, 1206 AVX, 12066D106KAT2A 4 2 C15, C17 CAP., 4.7µF, X5R, 6.3V, 10%, 1206 AVX, 1206ZD475KAT2A 5 2 C18, C19 CAP., TANTALUM, 1µF, 10%, 50V AVX, TAJC105K050RNJ 6 1 LED1 LED 3X2mm 650nm RED WTR CLR SMD RΩ, SML-012V8TT86 7 1 LED2 LED 3X2mm 560nm GRN WTR CLR SMD RΩ, SML-012P8TT86 8 1 Q2 MOSFET P-CH 20V 5.2A SOT-23-3 VISHAY, SI2365EDS-T1-GE3 9 1 Q4 MOSFET N-CH 60V 115mA SOT-23 FAIRCHILD SEMI, 2N7002 10 1 Q5 MOSFET N-CH 30V 3.9A SC-70-6 VISHAY, SI1416EDH-T1-GE3 11 3 R19, R21, R28 RES., 1k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1001V 12 7 R20, R24, R26, R29, R31, R33, R40 RES., 10k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1002V 13 1 R22 RES., 100k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1003V 14 1 R27 RES., 0.499Ω, 1/8W, 1%, 0805 STACKPOLE ELEC. RMCF0805FTR499 15 3 R30, R34, R39 RES., 1Ω, 1/8W, 1%, 0805 PANASONIC, ERJ-6RQF1R0V 16 3 R35, R36, R37 RES., 4.99k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF4991V 17 1 U1 I.C., LTC3886UKG, 60V DUAL OUTPUT STEP-DOWN CONTROLLER LINEAR TECH., LTC3886UKG#PBF 18 1 U2 I.C., OVERVOLTAGE/OVERCURRENT PROTECTION CONTROLLER LINEAR TECH., LTC4361CTS8-2#PBF 19 1 U3 I.C., 2k I2C SERIAL EEPROM SOIC-8 MICROCHIP, 24LC024-I/SN 20 1 SKT1 SOCKET LORANGER, 03713 531 6217 Additional Demo Board Circuit Components: 1 0 R38 RES., OPTION, 0805 OPTION 2 0 R41, R42, R43, R44, R45, R46 RES., OPTION, 0603 OPTION CONN., HEADER, 1X3, 2mm WURTH ELEKTRONIK, 62000311121 Hardware: For Demo Board Only 1 2 JP1, JP2 2 2 XJP1, XJP2 SHUNT, 2mm WURTH ELEKTRONIK, 60800213421 3 1 J1 CONN, HEADER 14POS 2mm VERT GOLD MOLEX, 87831-1420 4 1 J2 CONN, HEADER 12POS 2mm 2ROW GOLD FCI CONNECTOR, 98414-G06-12ULF 5 12 TP1, TP2, TP3, TP4, TP5, TP6, TP7, TERMINAL TURRET DBL .084"L TP8, TP10, TP11, TP12, TP13 KEYSTONE, 1593-2 6 4 (STAND-OFF) KEYSTONE, 8833 STANDOFF, NYLON, SNAP-ON, 0.500" DC2277af 5 A B C TP13 TP6 R22 100K 1 5 1. ALL RESISTORS AND CAPACITORS ARE 0805. NOTE: UNLESS OTHERWISE SPECIFIED GND TG0 +3.3V Q2 TP2 LED1 RED LED FAULT0B R24 10.0K Partin 1 R26 10.0K +5V R21 1.00K SDA SCL SI2365EDS-T1-E3 1.00K R19 ALERTB 2 3 1 4 53 Q4 2N7002 0.499 R27 R20 10.0K ISENSP_0 ISENSM_0 TSNS0 VSENSP_0 VSENSM_0 ISENSP_1 ISENSM_1 ITH0R ITH0 SYNC SCL SW0 TG0 TP1 4 5 6 7 8 9 10 11 12 13 14 1 2 3 2 2 4 R40 10.0K LTC3886UKG 1 3 5 6 ON GATEP IN SENSE R41 OPT 0603 4 GND 52 BOOST0 50 BG0 48 47 46 VIN IINP IINM 44 43 42 INTVCC EXTVCC BG1 SDA ALERTB FAULT0B FAULT1B RUN0 RUN1 ASEL0 ASEL1 VOUT0_CFG VOUT1_CFG FREQ_CFG PHAS_CFG BOOST1 SW1 TG1 3 1 2 GREEN LED LED2 R45 OPT 0603 3 1.00K C12 0.01µF 0603 R28 R46 OPT 0603 3 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE 8 7 R44 OPT 0603 36 35 34 33 32 31 30 29 28 27 40 39 38 2 C11 0.1µF 0603 LT SCALE = NONE YS 2 DATE: B SIZE YS LTC3886UKG DEMO CIRCUIT 2277A Tuesday, January 12, 2016 IC NO. 1 SHEET 1 1 OF 2 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TP3 CHPWR TP4 VDD25 VDD33 DATE 1-04-16 APPROVED PROGRAMMING BOARD FOR LTC3886UKG TECHNOLOGY C15 4.7µF 1206 C14 0.1µF 0603 C13 10.0µF 1206 C17 4.7µF 1206 TP5 DESCRIPTION PRODUCTION 1 OFF WP ON (3886) 1 REVISION HISTORY REV C16 0.1µF 0603 JP1 __ ECO TITLE: SCHEMATIC Q5 SI1416EDH-T1-GE3 10.0K R29 APPROVALS 1 2 5 6 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. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. PWRGD GATE U2 LTC4361CTS8-2 R43 OPT 0603 TSNS1 VSENSP_1 PG0 PG1 ITH1R ITH1 VDD33 SHARE_CLK WP VDD25 U1 R42 OPT 0603 15 16 17 18 19 20 21 22 23 24 25 26 2 OUT GND 6 4 D 5 A B C D DEMO MANUAL DC2277A Schematic Diagram DC2277af 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. A B C D 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 5 OPT R38 1 R39 1 R34 1 R30 TP12 ENB ENB R31 10.0K C19 1.0µF 6032 R33 10.0K 4 3 2 1 C20 0.1µF 0603 4 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 SDA SCL WP VCC 5 6 7 3 SCALE = NONE YS LT APPROVALS VSS A2 A1 A0 8 C18 1.0µF 6032 U3 24LC024-I/SN 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. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. CUSTOMER NOTICE NOTE: J1 AND J2 CONNECT TO RIBBON CABLES OF I2C / SMBUS CONTROLLER (DONGLE) 12 Pin AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN GPIO_2 GND AUXSCL AUXSDA J2 DC1613 14 Pin V+ 3.3V GND SCK/SCL MISO CS MOSI/SDA GND EESDA EEVCC EESCL EEGND GND GPIO_1 J1 DC1427 + 4 + 5 OFF EE WP ON DATE: B SIZE R37 4.99K SDA SDA TP10 +5V TP11 +3.3V TP7 DEMO CIRCUIT 2277A LTC3886UKG 2 Tuesday, January 12, 2016 IC NO. 1 SHEET 2 OF 2 1 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only +5V +3.3V 1 PROGRAMMING BOARD FOR LTC3886UKG TECHNOLOGY R36 4.99K SCL TITLE: SCHEMATIC JP2 R35 4.99K SCL TP8 2 A B C D DEMO MANUAL DC2277A Schematic Diagram DC2277af 7 DEMO MANUAL DC2277A 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 8 DC2277af Linear Technology Corporation LT 0316 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2016