Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Linear Technology Manuals
  4. Motherboard
  5. DC1962C
  6. Demo manual

Linear Technology DC1962C Demo Manual

14-channel power supply system employing ltc3880/ltc2974/ltc2977 power system managers with eeprom
Hide thumbs Also See for DC1962C:

Advertisement

Quick Links

Download this manual
We have 45,000 LP502030-PCM-NTC-LD-A02554 - EEMB - Lithium Battery Rectangular 3.7V 250mAh Rechargeable in
stock now. Starting at $0.034. This EEMB part is fully warrantied and traceable.
Looking for a discount?
Check out our current promotions!
This coversheet was created by Verical, a division of Arrow Electronics, Inc. ("Verical"). The attached document was created by the part supplier,
not Verical, and is provided strictly 'as is.' Verical, its subsidiaries, affiliates, employees, and agents make no representations or warranties
regarding the attached document and disclaim any liability for the consequences of relying on the information therein. All referenced brands,
product names, service names, and trademarks are the property of their respective owners.
00000005981LF-000
DC1962C
EOS Power
ANALOG DEVICES
Buy Now
Buy Now
Give us a call
1-855-837-4225
International: 1-555-555-5555
1-415-281-3866
1-415-281-3866
Arrow Electronics,
Arrow Electronics, Inc
Verical Division
9201 East Dry Creek Road
P.O. Box 740970
Centennial, CO 80112
Los Angeles, CA 90074-0970

Advertisement

loading
Need help?

Need help?

Do you have a question about the DC1962C and is the answer not in the manual?

Questions and answers

Related Manuals for Linear Technology DC1962C

Summary of Contents for Linear Technology DC1962C

  • Page 1 We have 45,000 LP502030-PCM-NTC-LD-A02554 - EEMB - Lithium Battery Rectangular 3.7V 250mAh Rechargeable in stock now. Starting at $0.034. This EEMB part is fully warrantied and traceable. 00000005981LF-000 DC1962C EOS Power ANALOG DEVICES Buy Now Buy Now Looking for a discount?
  • Page 2 Just plug and play! L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks Multiple DC1962C boards can be cascaded together to form a and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.

  • Page 3: Performance Summary

    DEMO MANUAL DC1962C performance summary Specifications are at T = 25°C POWER SUPPLY CHANNEL CH(0:1) CH(2:5) CH(6:13) Manager/Controller LTC3880 LTC2974 LTC2977 Nominal Untrimmed Output Voltages 0.85V, 1.1V 1.5V, 1.8V, 2.0V, 2.2V 0.9V, 1.0V, 1.1V, 1.2V, (Defined by Config) 2.5V, 2.7V, 3.0V, 3.3V Rated Output Current 0.3A...
  • Page 4 LTC3880 dual output PolyPhase step-down DC/DC controller with digital power system manage- ment. The software supports a variety of different tasks. You can use LTpowerPlay to evaluate Linear Technology ICs by connecting to a demo board system. LTpowerPlay can also be used in an offline mode (with no hardware present) in order to build a multi-chip configuration file that can be saved and re-loaded at a later time.

  • Page 5: Quick Start Procedure

    • Schematic Checklists • Device Programming Options • Firmware ‘Getting Started’ guides with sample code (margining, reading telemetry, etc.) The following procedure describes how to set up a DC1962C demo system. 1. Download and install the LTpowerPlay GUI: www.linear.com/ltpowerplay 2. Remove the board from the ESD protective bag and place it on a level surface. Connect the DC1613 I C/SMBus/ PMBus Controller to the DC1962C board using the 12-pin ribbon cable.
  • Page 6 5. Connect a 12VDC power supply with > 0.5A capacity to the V input jack of any DC1962C, if multiple boards are being powered. 6. Launch the LTpowerPlay GUI. c. Save the demo board configuration to a (*.proj) file by clicking the “Save”...
  • Page 7 DEMO MANUAL DC1962C Quick start proceDure Loading a DC1962C Configuration (*.proj) File with the GUI 1. In the upper left hand corner of the GUI, File > Open > browse to your *.proj file. This will load the file into the GUI.
  • Page 8 A look at the telemetry window shows the effect of the margin high or margin low operation. The following screen The digital power products on the DC1962C not only shot shows all rails going from nominal set points to monitor each of their respective outputs but can margin margin high, margin low, and back to nominal voltages.
  • Page 9 Demo BoarD operations Creating a Fault Clearing a Fault There is a pushbutton on the DC1962C board that is used To clear a fault, the user may click the CF icon in the to force a fault and demonstrate the demo board’s ability to GUI or simply push the RESET pushbutton on the demo detect it and respond according to the configuration.
  • Page 10 Once a new timing value is entered, the timing change will CONTROL switch is set to the OFF position, all rails will be reflected in the idealized waveforms. Figure 4. Sequencing Output Channels with DC1962C Using TON_DELAY Figure 5. TON_DELAY Configuration Figure 6. TOFF_DELAY Configuration...
  • Page 11 It is a powerful diagnostic feature of each of the digital power managers on the DC1962C demo board. Create a Fault and Fault Log To create a fault log, you must create a fault, as described in the Creating a Fault on page 8.
  • Page 12 DEMO MANUAL DC1962C aDvanceD Demo BoarD operations Working with the Fault Log “EEPROM to RAM” button. At this point the RAM Log is locked and not updated even though the telemetry read- Once a fault has occurred, the Fault Log (FL) icon ings continue.
  • Page 13 DEMO MANUAL DC1962C aDvanceD Demo BoarD operations Fault Sharing Setup in the GUI channels on the DC1962C demo board since the fault pins are tied together. Fault sharing provides a means of propagating a fault detected by a power manager to other power managers via NOTE: All FAULT pins on all power managers are tied to- FAULT pins.
  • Page 14 Click OK to close the dialog box. Click the notice that all rails shut down except U1:1 (CH3). This is “PC → RAM” icon to write the changes to the DC1962C. an example of a keep-alive channel that remains powered up independent of faults to other channels.
  • Page 15 GPIO pins are tied together, a fault on CH0 may be used to GPIO_RESPONSE command to “inhibit.” setup proceDure for multiBoarD arrays Up to eight DC1962C boards can be cascaded to control 2. Ensure different slave address settings for each of the up to 112 independent power supplies. The number of boards.
  • Page 16 C/SMBus/PMBus Controller may be 6. Re-launch LTpowerPlay. After launching, LTpowerPlay plugged into any board. If no DC1962C boards show up will enumerate the entire board array and build a rep- in the GUI, click the magnifying glass icon to enumer-...
  • Page 17 0x20. The DIP switch settings set the offset. The three switches that may be There is a small DIP switch on the backside of the DC1962C. changed are labeled A0, A1, A2. Examples below set the It is used to set the slave address of an I/O expander which boards to address 0x20 and 0x27.
  • Page 18 DEMO MANUAL DC1962C Dc1962c Details - top Table 3. DC1962C - Default Switch Configuration (Default Position Shown in Grey in the Figure Above) REFERENCE DESIGNATOR SIGNAL NAME USAGE DEFAULT A0, A1, A2 DIP switch used to set the address offset...
  • Page 19 DEMO MANUAL DC1962C Dc1962c Details - Bottom dc1962cf...

  • Page 20: Parts List

    DEMO MANUAL DC1962C parts list ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components IC DUAL PolyPhase CONTROLLER 40-QFN Linear Technology: LTC3880EUJ-1 IC 8-CH PWR SYSTEM MANAGER 64-QFN Linear Technology: LTC2977CUP IC 4-CH PWR SYSTEM MANAGER 64-QFN Linear Technology: LTC2974CUP...
  • Page 21 DEMO MANUAL DC1962C parts list ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER R1, R2, R3, R4, R29, R60, R61, R62, R63, RES 100k 1/10W 1% 0603 SMD Vishay: CRCW0603100KFKEA R76, R77, R78, R79, R80, R81, R82, R83, R118, R119, R120, R121 R5, R6, R7, R8 RES 1.50k 1/10W 1% 0603 SMD...
  • Page 22 DEMO MANUAL DC1962C parts list ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER R114, R115, R116, R117 RES ARRAY 2.7k 4 RES 1206 Vishay/Dale: RA06S0832K70JTA U1, U2, U3, U4, U12, U13, U14, U15, U16, IC BUCK SYNC ADJ 0.3A SOT23-6 Linear Technology:...
  • Page 23 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 24 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 25 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 26 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 27 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 28 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 29 DEMO MANUAL DC1962C schematic DiaGram dc1962cf...
  • Page 30 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 31 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.