The PMBus can be used to control and monitor the CHS300/400/500 converter.
For detail, refer to PMBus standard spec manual :
PMBus Power System Management Protocol Specification
Part I (Revision1.2) and Part II (Revision1.2).
1.1 Terminal function
1.1.1 Terminal function on CHS300-I
The figure and the table below show terminal function and name of pins on CHS300-I.
Table 1-1.1.
Pin Descriptions on CHS300-I
Note
function
Power_Good or remote control (secondary side
）
PMBus communication signal ground
PMBus communication data input&output
PMBus communication clock input
Not connected
Alarm output
Address setting
C2
DC output (-)
Remote sensing (-)
Output voltage adjustment
Remote sensing (+)
DC output (+)
DC input(-)
Remote control (first side
）
DC input(+)
Input
terminal
Output
terminal
PMBus
communication
terminal
-S
SMBAlert
Data
Sig_GND
14
5
6
7
8
Figure 1-1.1. pin assignment in CHS300-I (top view)
13
Addr0
NC
#
1
2
3
4
15
9
10
11
12
RC
-VIN
Clock
-VOUT
+VOUT
+S
name
+VIN
TRM
2.1 Pin configuration
1. PMBus communication cabling and connection
Applications manual
For CHS300/400/500-
I
series
- 2 -
