Specifications

WA_DEV_FEX20_PTS_004 Rev 001 June 30, 2010 14
3. Technical Specifications
3.1. Power Supply
The Expansion Card power supplies are readily available on the 50-pin connector.
The following table describes the pin description of the available power supplies from the 50-pin
connector.
Table 1: Power Supplies Pin Description
Pin Number(s)
Signal
I/O Type
Description
41
VCC-2V8
Supply
LDO
46, 47
4V
Supply
High current power supply.
43, 44
DC-IN IESM
Supply
High current external power supply. The same supply
provided on the 10-pin Micro-Fit connector with polarity
protection.
The following tables describe the electrical characteristics of each DC supply signal.
Table 2: VCC-2V8 Supply Signal
Parameter
Minimum
Typical
Maximum
Unit
VCC-2V8
Output voltage
2.73
2.8
2.87
V
Output Current
-
-
100
mA
Table 3: 4V Supply Signal
Parameter
Minimum
Typical
Maximum
Unit
4V
Output voltage
3.91
4
4.12
V
Output Current
-
-
300
mA
Table 4: DC-IN Supply Signal
Parameter
Minimum
Typical
Maximum
Unit
DC-IN
Output voltage
5.5
13.2
32
V
Output Current
218
91
37.5
mA
Warning: The total maximum power dissipation of these three power supplies must not exceed 1.2W.