Single output linears, ac input: 100/120/220/230/240 vac, 47-63 hz (2 pages)
Summary of Contents for Power One SFP450 Series
Page 1
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SFP450/600 I C Interface Programming Manual Scope This document describes in detail the I C communication interface of the SFP450/600 series. (SFP450-, SFP600, ….) This includes the physical layer and the SW protocol.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Index Scope..............................1 SFP450/600 I C Interface General Characteristic .................1 Index ..............................2 SFP450/600 I C features........................3 Dynamic data ..........................3 Static data............................3 Connecting the SFP450/600 to the I C Bus...................4...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SFP450/600 I C features 4.1 Dynamic data The SFP450/600 series supports following monitoring features: -Measured Output 1 voltage [V]...
Page 4
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. General I C HW configuration C Bus C Bus Master SFP450/600 One or two SFP450/600 SFP450/600 Other I Devices Figure 4-1 System Overview 4.3 Connecting the SFP450/600 to the I...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 4.4 SFP450/600 I C Supply (Slave) The SFP450/600 Micro Controller/EEPROM is powered over the internal supply of the SFP450/600. For redundancy in case of DC failure or SFP450/600 internal failure the SFP450/600 Micro Controller/EEPROM can be powered over the “+3.3VSB”...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Example: On the backplane PS A0 is connected to 0V, you will have the following device address to read...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SW Protocol The static data are stored in a serial I C EEPROM and the dynamic data can be requested over the Status Port with three commands.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.1 How to Read an EEPROM byte 1) "Start condition" from Master 2) Master sends "Device address" with "write attribute"...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.2 How to read an EEPROM data block 1) "Start condition" from Master 2) Master sends "Device address" with "write attribute"...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.3 How to write an EEPROM byte 1) Pull down the Write Protect line (Pin A4) 2) "Start condition" from Master 3) Master sends "Slave address"...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.4 Power One EEPROM Definitions 5.1.4.1 Timestamp The UNIX timestamp is a 32-bit big-endian integer that represents the number of seconds since January 1, 1970 at 00:00:00 UTC (GMT).
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2 Dynamic Status Port Data The I C Master can read from the status port the status of the PS, the measured voltage and current. There exist three commands.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.1 Status Byte definition Explanation Bit 0 PS present = 0 (True) False = 1 This Signal indicates that the PS is present.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.3 How to read the status byte from Status Port To read the status byte, is like reading from a serial EEPROM at address 0x01.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.4 How to read the measured output Voltage/Current 1) "Start condition" from Master 2) Master sends "Status Port Device address" with "write attribute"...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Error Handling Errors in the communication can occur. The following flowchart shows how the Bus Master can handle such errors.
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.3.2 Read Static serial EEPROM Start Read first Byte from EEPROM Read next EEPROM Byte All Bytes read checksum ok?
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.3.3 Read Status Port To be sure that there are no corrupt data, you have to read the data twice.
Page 19
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Power-One I C Interface tool The Power-One I C – Management Software (HZZ02002SW, www.power-one.com) demonstrates all the C interface features of the SFP450/600.
Page 20
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. FCI Power Blade D-Sub (51721-10002406AA) (37 pol) HZZ02002G AC main SFP450/600 pin 25 pin C5 pin 24 pin B5...
All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Bibliography -Philips Semiconductors, The I 2C-BUS Specification, V.2.1, Document order number: 9398 393 40011 www.semiconductors.philips.com/ acrobat/literature/9398/39340011.pdf -Philips SemiconductorsI2C Handbook www.semiconductors.philips.com/ acrobat/various/philips_i2c_handbook.pdf...
Need help?
Do you have a question about the SFP450 Series and is the answer not in the manual?
Questions and answers