Themis NanoPAK, Руководство пользователя

Страница: 47 / 156

2-15
Themis Computer
2—Installation and Operation
2.4 Power Consumption
Figure 2-11 shows an example of power consumption of the NanoPAK
®
at input
voltage levels from 16V to 36V.
2.4.1 Current Protection
The following peripherals have current protection as indicated:
• USB ports #0 and #1: 2A (transient)
• USB ports #2 and #3: 500mA (standard)
• VGA PWR (either 3.3V or 5V): 0.75A by fuse.
2.4.2 Standby Power/Battery
The CPU module has a real-time clock and system configuration data which need
backup power if they are to be maintained when system main power is turned off.
The NanoPAK
®
supports two methods for implementing the backup voltage, an
Figure 2-11. Power Consumption
12W
15W
18W
21W
24W
Power (Pin)
Voltage (Vin)
16V
24V 36V
Atom (Idle)
Atom (Memtest)
13.5W
16W