101-1006 Rabbit Semiconductor, 101-1006 Datasheet - Page 118

• Manufacturer Part Number: 101-1006
• Description: MODULE POWERCORE FLEX 3800
• Manufacturer: Rabbit Semiconductor

Specifications of 101-1006

• Module/board Type: MPU Core Module
• For Use With/related Products: RCM3800
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Example Current Calculation
Let’s look at a 24 V AC power supply where the user’s circuit consumes 300 mA @ +3.45 V,
550 mA @ +5 V, and 1500 mA @ 24 V AC. Can a PowerCore 3810 supply these needs?
I
I
I
Now let’s examine each of these currents in turn.
• I
• I
•
110
3VoutA
5VoutA
unregA
needs 550 mA @ +5 V, this is
Since the user’s circuit only needs 1500 mA @ +24 V AC, this is
I
3VoutM
5VoutM
unregM
=
=
=
1850 mA
1850 mA
1613 mA
= 1500 mA = actual AC output current used by user’s circuit
= 300 mA
= 550 mA
= 350 mA; since the user’s circuit only needs 300 mA @ +3.45 V, this is
= [850 mA - I
–
–
(
(
I
550mA
5VoutA
+
+
I
300 mA
3VoutA
3VoutA
)
×
)
] = [850 mA - 300 mA] = 550 mA; since the user’s circuit
×
⎛
⎝
6.7 V
------------ -
⎛
⎝
V
6.7 V
------------ -
OK
24 V
IN
⎞
⎠
.
⎞
⎠
OK
.
PowerCore FLEX
OK
.