BCM IN440EX-D, User Manual

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ELECTRICAL AND MECHANICAL SPEC.
Vcc, min
Vol Ouput Low Voltage Iol, max
Vcc, min 0.4 V
Table 4.3. 3.3 Volt DC Specifications
Symbol Parameter Condition Min Max Units
Vcc3 Supply Voltage 3.168 3.432 V
Vih Input High Voltage 2.2 3.432 V
Vil Input Low Voltage -0.3 0.8 V
Voh Output High Voltage 2.4 V
Vol Ouput Low Voltage 0.4 V
4.3.
Power Supply
4.3.1.
Power Supply Connectors
The input power is supplied via the ATX power supply. The ATX power
supply incorporates the power supply connector (J17) on the system PWA.
4.3.2.
Input Power Budget
The +5V current available reflects the rating of the power connector. The
Power itself may deliver more so the system integrator must be sure that the
total load does not exceed the system power supply or board power
connector rating, whichever is less. The rating of the ISA slots is 4.5A per
slot. The ISA specification recommends supporting an average of 3.0A per
slot. The average current consumption may not exceed 3A per slot. The
system integrator must also guarantee that worst-case power consumption
does not exceed the maximum allowed by the motherboard power connector.
Table 4.4. IN440EX-D Motherboard Power Budget
Voltage Current Load(A)
Input Tolerance Minimum Maximum
-12V +/-5% 0 0.1 amp
-5V +/-5% 0 0.1 amp
+5V +/-5% 1 9 amp
+12V +/-5% 0.2 0.8 amp
3.3 +/-4% 1.5 5 amp