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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 module.

The 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. 

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 Page

Jon Siegers
Ankur Patel
Applications Engineering

Introduction  

1

Connector Information - 
PMBus™-USB Adapter 

3

Application Details 

4

Features 4

VIA to Adapter Bridge Board  5

GUI Configuration 

8

Содержание PowerBench PMBus

Страница 1: ...s provided for users to easily monitor and control the power module The 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 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 obt...

Страница 2: ...ct with hot surfaces n n Never use a jumper in place of the fuse n n When testing electronic products always use approved safety glasses Follow good laboratory practice and procedures n n Avoid creating ground loops when making measurements of the isolated input or output voltage and signals n n Care should be taken to protect the user from accidental contact when under power n n Care should be ta...

Страница 3: ...GNAL RETURN Signal Ground 6 Chassis GND SHIELD Connector Housing Ground 6 Chassis GND VDDB SDA SCL SGND SGND Micro USB Connector 1 2 3 4 5 Side View VIA VIA VIA VIA Host PC and GUI Adapter Bridge Board USB ADAPTER 4V A00 VIA to Adapter Bridge Board Cable 43503 01 PMBus to USB Adapter I2C ADAPTER A00 ISOLATION BOUNDARY Figure 1 Host PC to VIA Power Module Array Connection PMBus Communication Interf...

Страница 4: ...nnection to host PC n n Provides 5V external bias VDDB n n Isolated PMBus to host interface 4242VDC n n Measurement of input and output parameters including but not limited to n n Voltage n n Current n n Power n n Temperature n n Fault monitoring including but not limited to n n Overvoltage Undervoltage n n Overcurrent n n Overtemperature n n Enable Disable control Part Number Description USB ADAP...

Страница 5: ... 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 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 GU...

Страница 6: ... Connector 3 2 1 4 5 J02 GND 0402 C01 0402 R06 0402 R02 0402 R07 D01 0402 R08 GND 0603 R01 VDDE VDDE VDDE ADDRESS_1 GND ADDRESS_1 0402 R03 ADDRESS_2 GND 0402 R04 ADDRESS_3 GND 0402 R05 ADDRESS_4 GND SDA SDA SCL SCL SGND SGND Micro Lock Connector 3 2 1 4 5 J03 VDDE ADDRESS_2 SDA SCL SGND Micro Lock Connector 3 2 1 4 5 J04 VDDE ADDRESS_3 SDA SCL SGND Micro Lock Connector 3 2 1 4 5 J05 VDDE ADDRESS_4...

Страница 7: ...NGLE ROW RA Molex 504195 0570 Reference Designator Description Manufacturer Manufacturer Part Number R01 RES 0Ω JUMPER 1A 0603 KOA Speer RK73Z1JTTD R06 R09 RES 0Ω 1 16W 1 0402 KOA Speer RK73Z1ETTP R08 RES 1kΩ 1 16W 1 0402 KOA Speer RK73H1ETTP1001F R07 RES 10kΩ 1 16W 1 0402 KOA Speer RK73H1ETTP1002F R02 RES 1 05kΩ 1 16W 1 0402 KOA Speer RK73H1ETTP1051F R03 RES 2 8kΩ 1 16W 1 0402 KOA Speer RK73H1ETT...

Страница 8: ...provide 5V VDDB from an external source 2 Power up module within operating range specified by the device datasheet 3 Open the Vicor Digital Interface Demo Board software installed on the connected host PC 4 Go to Tools Scan for Digital Supervisor to detect digital supervisor as shown in Figure 4 1 5 Go to Tools Scan for Devices and select desired power module device as shown in Figure 4 2 6 Verify...

Страница 9: ... implement adequate design testing and operating safeguards for your planned application s and use s VICOR PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANTED FOR USE IN LIFE SUPPORT LIFE CRITICAL OR SAFETY CRITICAL SYSTEMS OR EQUIPMENT VICOR PRODUCTS ARE NOT CERTIFIED TO MEET ISO 13485 FOR USE IN MEDICAL EQUIPMENT NOR ISO TS16949 FOR USE IN AUTOMOTIVE APPLICATIONS OR OTHER SIMILAR MEDICAL AND AUTOM...

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