Monitoring Voltage And Current - AMD XILINX VEK280 User Manual

3/20/24, 12:51 PM
Rail Name
VCC12_SW
UTIL_3V3
UTIL_5V0
SYS_VCC0V85
SYS_MGTAVCC
SYS_VCC1V1
SYS_VCC1V2
SYS_VCC1V8
✎
Note: VCC12_SW is disabled when using ATX 12V (6+2) input. Refer to the
description in the
More information about the power system regulator components can be found at
the Infineon Integrated Circuits

Monitoring Voltage and Current

Nineteen rails have a TI INA226 PMBus power monitor circuit with connections to
the rail series current sense resistor. This arrangement permits the INA226 to report
the sensed parameters separately on the PMBus. The rails equipped with the
INA226 power monitors are shown in the power system table in
System. As described in
the PMBus power controllers and the INA226 power monitors via the U33
TCA9548A bus switch. All PMBus controlled Infineon regulators are tied to the
PMBUS_SDA/SCL PMBus, while the INA226 power monitors are split across
PMBUS1_INA226_SDA/SCL and PMBUS2_INA226_SDA/SCL.
The I2C0 bus topology figure and I2C0 port expander TCA6416A U233 address
0x20 connections table in
access path to the Infineon PMBus controllers and INA226 power monitor op amps.
For connectivity details, see the schematic, which can be accessed through the
VEK280 Evaluation Board
accessible to the ZU4 U125 system controller (bank 501) and the Versal device U1
(bank 501).
https://docs.amd.com/internal/api/webapp/print/d54fa025-f5b0-4797-be6e-41b3e31f9548
Regulator Type
IR3889
IR3889
TPS62480
TPS62097RWKR
TPS7A8300ARGRR
TPS62097RWKR
TPS62097RWKR
Power On/Off Slide Switch
website.
PMC MIO[46:47] I2C0
PMC MIO[46:47] I2C0 Bus
website. These power system components are also
Unofficial Document
Ref. Des. Vout (V)
SW13
U190
U191
U143
U146
U145
U147
U144
introduction.
Bus, the I2C0 bus provides access to
document the I2C0 bus
Iout (A)
12 Up to
50A
3.3 12
5 6
0.85 5
0.9 1
1.1 1
1.2 2
1.8 1
Board Power
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