UG PMBus Interface Accessories - Vicor

1 UG:402 Page 1 PMBus Interface and Accessories User Guide USER GUIDE | UG:402 Introduction The PMBus -USB Adapter (I2C-ADAPTER-A00) allows users to communicate with PMBus -version Vicor power modules through the signal pins. A PMBus control Interface is provided for digital management and access to telemetry monitoring offered by the product. The PMBus to USB Adapter converts the PMBus to USB communication protocol by an internal isolated controller that allows users to easily connect to a host PC (no driver installation required on Windows). A GUI, available for download on the Vicor website, is provided for users to easily monitor and control the power PMBus Interface of a VIA , a dedicated digital Supervisor or Point-of-Load Isolator is used for communication purposes with the provided GUI installed on the user s PC.

2 The PMBus Interface of a VIA, digital Supervisor or PLI allows users to read and write into the status configuration registers of the module, monitor faults and obtain other additional device information. The PMBus -USB adapter provides the ability to demonstrate the PMBus digital Interface offered on select Vicor products in an evaluation environment. Contents PageJon SiegersAnkur PatelApplications EngineeringIntroduction 1 Connector Information - PMBus -USB Adapter 3 Application Details 4 Features 4 VIA to Adapter Bridge Board 5 GUI Configuration 8 UG:402 Page 2 IMPORTANT NOTICE:Hazardous voltages may be present on the interfaced Vicor power module.

3 PERSONAL CONTACT WITH LINE VOLTAGE MAY RESULT IN SEVERE INJURY, DISABILITY, OR DEATH. IMPROPER OR UNSAFE HANDLING OF THIS ACCESSORY AND RELATED POWER MODULE(S) MAY RESULT IN SERIOUS INJURY OR DEATHRead the precautions below entirely BEFORE using the PMBus -USB Adapter. Do not operate the PMBus to USB Adapter unless you have the appropriate safety precautions in place on your bench to guarantee safety. The list below is not comprehensive and is not a substitute for common sense and good practice. nnDuring operation, the power devices and surrounding structures can be operated safely at high power from converter and use caution when connecting and disconnecting test probes and Interface lines to avoid inadvertent short circuits and contact with hot use a jumper in place of the testing electronic products always use approved safety glasses.

4 Follow good laboratory practice and creating ground loops when making measurements of the isolated input or output voltage and should be taken to protect the user from accidental contact when under should be taken to avoid reversing polarities if connecting to the opposite (solder) side of the PMBus to USB Adapter described in this document is designed for general laboratory evaluation, and is not suitable for installation in end user to the specific Vicor power module data sheet of the interfaced product(s) for electrical, thermal, and mechanical product cables 43503-01 and 43503-02 are rated up to five insertions and extractions. Insert and extract the VIA signal connector cables by firmly grasping the connector body housing.

5 To avoid unnecessary stress on the connector, the cable should be appropriately strain relieved. UG:402 Page 3 Connector Information PMBus -USB AdapterPin NumberSignal NameTypeFunction1 VDDBOUTPUT5V supply output2 SDAINPUT/OUTPUTI2C Data PMBus Compatible3 SCLOUTPUTI2C Clock PMBus Compatible4 SGNDSIGNAL RETURNS ignal Ground5 SGNDSIGNAL RETURNS ignal Ground6 Chassis GNDSHIELDC onnector Housing Ground6 Chassis GNDVDDBSDASCLSGNDSGNDM icro-USBC onnector12345 SideViewVIAVIAVIAVIAHostPC andGUIA dapterBridgeBoard(USB-ADAPTER-4V-A00)VIA to AdapterBridgeBoardCable(43503-01) PMBus to USB Adapter(I2C-ADAPTER-A00)ISOLATIONBOUNDAR YF igure 1 Host PC to VIA Power Module Array Connection, PMBus Communication Interface Accessories Shown as a Typical Application Setup UG:402 Page 4 Application DetailsThe PMBus -USB Adapter, along with the listed companion Accessories and Vicor digital Interface Demo GUI, provides a convenient means to demonstrate the PMBus digital Interface offered on Vicor power modules in an evaluation environment.

6 With these tools, the user can quickly get started with evaluating the features offered by the PMBus Interface and determining needs of the final production power configure and monitor PMBus enabled Vicor power modulesnnVicor digital Interface Demo Board GUI for PMBus control Interface (available on Vicor website HV BCM family page)nnUSB connection to host PCnnProvides 5V external bias (VDDB)nnIsolated PMBus to host Interface (4242 VDC)nnMeasurement of input and output parameters, including but not limited to:nnVoltagennCurrentnnPowernnTemperatur ennFault monitoring, including but not limited to:nnOvervoltage / UndervoltagennOvercurrentnnOvertemperatu rennEnable / Disable controlPart NumberDescriptionUSB-ADAPTER-1V-B00 Adapter bridge board, for use with single chassis-mount VIA USB-ADAPTER-4V-A00 Adapter bridge board, for use with up to four chassis-mount VIAs43503-01 VIA Signal Connector cable with Molex Micro-Lock connector (600mm length)43503-02 VIA Signal Connector cable with Molex Micro-Lock connector (200mm length)I2C-ADAPTER-A00 PMBus -USB AdapterSoftware InterfaceVicor digital Interface demo board GUIT able 1 PMBus Companion Accessories UG.

7 402 Page 5 VIA to Adapter Bridge BoardThe Typical Application diagram in Figure 1 shows the connections required to establish PMBus communication between PMBus -enabled VIA modules and a host PC. The setup for this configuration includes directly connecting the VIA Signal Connector cable to the PMBus signal port on the VIA. The Adapter Bridge Board, as shown in Figure 2 and Figure 3, provides the necessary connections between the VIA Signal Connector Cable and the PMBus to USB Adapter. On Adapter Bridge Board USB-ADAPTER-1V-B00, the VIA PMBus address is programmed to 51h by a pre-installed resistor R02. On the Adapter Bridge Board USB-ADAPTER-4V-A00, the four VIA PMBus addresses are programmed to 51h, 53h, 54h, 55h by pre-installed resistors R02-R05.

8 An LED provides visual indication that VDDB (5V) is present. Lastly, the PMBus to USB Adapter connects to the user s computer where the provided Vicor digital Interface Demo GUI is installed. Figure 2 USB-ADAPTER-1V-B00 Assembly Drawing and Schematic TOP VIEWJ01 FID01R04C01R01R02J02D01 FID02R06R05R08321456 ChassisJ01 MICRO USB ConnectorGNDCHASSISADDRESSGND32145J02 Micro-Lock Connector GNDVDDESCLSDAGND0402C010402R040402R02040 2R01D010402R060402R050402R08 UG:402 Page 6 Figure 3 USB-ADAPTER-4V-A00 Assembly Drawing and Schematic TOP VIEWR01R05R04R03J05J04J03R08 FID02D01J02R02R07C01R06 FID01J01R09321456 ChassisJ01 MICRO USB ConnectorCHASSISM icro-Lock Connector 32145J02 GND0402C010402R060402R020402R07D010402R0 8 GND0603R01 VDDEVDDEVDDEADDRESS_1 GNDADDRESS_10402R03 ADDRESS_2 GND0402R04 ADDRESS_3 GND0402R05 ADDRESS_4 GNDSDASDASCLSCLSGNDSGNDM icro-Lock Connector 32145J03 VDDEADDRESS_2 SDASCLSGNDM icro-Lock Connector 32145J04 VDDEADDRESS_3 SDASCLSGNDM icro-Lock Connector 32145J05 VDDEADDRESS_4 SDASCLSGND0402R09 UG.

9 402 Page 7 The following is a list of all connectors and components present on the USB-ADAPTER-1V-B00 and USB-ADAPTER-4V-A00 Adapter Bridge Part NumberR04, R05, R08 RES 0 1/16W 1% 0402 KOA SpeerRK73Z1 ETTPR06 RES 1k 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1001FR01 RES 10k 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1002FR02 RES 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1051FC01 CAP X7R F 10% 16V 0402 MurataGRM155R71C104KA88DD01 DLED RED SMD 0402 PanasonicLNJ247W82 RAJ01 CONN MICRO-B USB SMDTE Connectivity2174507-2J02 CONN MICRO HDR 5 POS SINGLE ROW RAMolex504195-0570 ReferenceDesignatorDescriptionManufactur erManufacturer Part NumberR01 RES 0 JUMPER 1A 0603 KOA SpeerRK73Z1 JTTDR06.

10 R09 RES 0 1/16W 1% 0402 KOA SpeerRK73Z1 ETTPR08 RES 1k 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1001FR07 RES 10k 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1002FR02 RES 1/16W 1% 0402 KOA SpeerRK73H1 ETTP1051FR03 RES 1/16W 1% 0402 KOA SpeerRK73H1 ETTP2801FR04 RES 1/16W 1% 0402 KOA SpeerRK73H1 ETTP3921FR05 RES 1/16W 1% 0402 KOA SpeerRK73H1 ETTP5231FC01 CAP X7R F 10% 16V 0402 MurataGRM155R71C104KA88DD01 DLED RED SMD 0402 PanasonicLNJ247W82 RAJ01 CONN MICRO-B USB SMDTE Connectivity2174507-2J02, J03, J04, J05 CONN MICRO HDR 5 POS SINGLE ROW RAMolex504195-0570 Table 2 USB-ADAPTER-1V-B00 ComponentsTable 3 USB-ADAPTER-4V-A00 Components UG:402 Page 8 GUI ConfigurationAfter making the necessary connections, follow the guidelines for configuring the GUI and to ensure establishment of communication between the power module and the host Measure 5V on the VDDB pin of the VIA module to ensure power is provided to the digital communication Interface .