Power One SFP450 Series, Руководство по программированию

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Title
Issued 2006-05-19 SKl
Modified -- --
Mech. Eng. approved -- --
Marketing approved
SFP450/600 I
2
C Interface Programming
Manual
Mfg. approved --
Size Scale Sheet Drawing No. Revision
www.power-one.com
A4 4/21
BBA20005-G 001
Supersedes: -
General I
2
C HW configuration
Figure 4-1 System Overview
4.3 Connecting the SFP450/600 to the I
2
C Bus
The following diagram shows how the SFP450/600 can be connected to the I
2
C Bus.
Figure 4-2 Recommended connecting of the SFP450/600 to the I
2
C Bus
I
2
C Bus Master
SFP450/600
SFP450/600
Other I
2
C
Devices
One or two
SFP450/600
:
I
2
C Bus
EEPROM
+3.3V SB
:
PS A0
Pin A5
SFP450/600 (I
2
C Slave)
Pin A6, B4,C4,D4
Internal supply
SDA
SCL
Pin B5
Pin C5
:
Pin A3,B1,B3,C1,C3,D3
Return
:
::
Address
decoder
3.3V
:
:
:
:
:
Controller
:
I
2
C Master
To the other SFP450/600 or
3.3 V Supply
I
2
C Bus
1
3
2
1 External Pull-Up
2
SDA/SCL internal Pull-Up
3 SDA/SCL internal series resistors
:
3V
Ref.
Micro
controller
(Status Port)
:
:
:
:
:
:
:
:
:
:
:
5
4
4
5
SDA/SCL internal capacitance
Internal Pull-Up Address lines
Write Protect
Pin A4
:
:
6
6
Internal Pull-Up Write Protect