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V+
PMBD
PMBCTRL1
PMBCTRL2
PMBCTRL5
PMBCTRL4
PMBC
PMBALER
T
PMBCTRL3
PMBus Interface
GND
PMBus Pull Up Jumpers
R13
33
R14
33
R20
33
R12
33
1
2
3
4
5
6
7
8
9
10
J3
D3
AZ23C5V1
D4
AZ23C5V1
R23
1.5K
R22
1.5K
J10
J9
J6
R33
1.5K
J42
PMBUS_ALER
T
[1,2,5,6]
PMBUS_CLK
[1,2,5,6]
PMBUS_DA
T
A
[1,2,5,6]
PMBUS_CTRL
[1,2,5]
DGND
DGND
PMBUS_DA
T
A
[1,2,5,6]
PMBUS_CLK
[1,2,5,6]
+3_3V
[1,2,4,5,9]
USB_V33
PMBUS_ALER
T
[1,2,5,6]
Schematics
Figure 6. UCD3138OL40EVM-032 Schematics (PMBus) 6 of 9
9
SLUUA80 – January 2013
Using the UCD3138OL40EVM-032
Copyright © 2013, Texas Instruments Incorporated