Texas Instruments AMIC110 ICE, User Manual, Page: 23 / 35

Input EMI filter
PMIC
TPS650250
7 LEDs
AMIC110
DDR3
MT41K256M16TW-107
DC jack
5 V
1.5 V
1.5 V 1.8 V 1.1 V 3.3 V
Ethernet PHY x2
DP83822
SPI Flash
W25Q64F
EEPROM
CAT24C256WI
Buffer x3
SN74CB3Q3245
3.3 V
3.3 V
3.3 V
3.3 V
5 V
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Power Supply
23 SPRUIE6 – April 2017
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Copyright © 2017, Texas Instruments Incorporated
AMIC110 Industrial Communications Engine (AMIC110 ICE)
4.1 Power Distribution
Figure 15 shows the power distribution diagram.
Figure 15. Power Distribution Diagram
4.2 Sitara AMIC110 Current Consumption
AM335x Power Consumption Summary was used for the worst-case estimates of the AMIC110 power
requirements. The power requirements from the 3D Chameleon Man example were used because that
was the example with the highest power consumption.
Table 13 lists the current consumption requirements of the AMIC110 including DDR3.
(1)
DDR3 interface using 1.5 V.
Table 13. Current Consumption Requirements of AMIC110 (Including DDR3)
Rail Sitara AMIC110 DDR3
1.1 V ≈ 420 mA
1.5 V
(1)
≈ 120 mA ≈ 140 mA
1.8 V ≈ 33 mA
3.3 V ≈ 34 mA
4.3 Additional Components – Current Consumption
Several additional components must be calculated to evaluate the power consumption of the 3.3-V rail.
These components include:
• Glue logic between AMIC110 and DP83822
• Status LEDs for EtherCAT
• SPI Flash for booting the AMIC110
• Switching losses on I/O lines