The
Cool-ORing
PI2003 with an external industry standard
100V N-channel MOSFET provides a complete Active ORing
solution designed for use in -48 Vbus redundant power
system architectures. The PI2003 controller with an N-channel
MOSFET enables extremely low power loss with fast dynamic
response to fault conditions, critical for high availability
systems.
The PI2003 controller with a low Rds(on) N-channel MOSFET
provides very high efficiency and low power loss during
steady state operation. The PI2003 controller provides an
active low fault flag output to the system during excessive
forward current, light load, or reverse current.
Figure 1 shows a photo of the PI2003-EVAL1 evaluation
board, with two PI2003 controllers and two N-channel
MOSFET used to form the two Active ORing channels. The
board is built with two identical Active ORing circuits with
options and features that enable the user to fully explore the
capabilities of the PI2003 universal Active ORing controller.
Figure 1
– PI2003 -EVAL1 Evaluation Board (1.8" x 1.8")
Terminals Rating
Vin1+ to Vin1-,
60 V / 8 A
Vin2+ to Vin2-
60 V / 8 A
VC1, VC2
-0.3 V to 17.3 V / 40 mA
FT1, FT2
-0.3 V to 17.3 V / 10 mA
Terminal
Description
Vin1+ and Vin1-
Power Source Input #1:
or bus input designed to accommodate up to 60 V and 6 A continuous current.
Vin1+ and Vin1-
Power Source Input #2:
or bus input designed to accommodate up to 60 V and 6 A continuous current.
VC1
Optional Auxiliary Input Voltage #1:
to supply PI2003 VC power. VC1 should be 10 V or higher to fully enhance the MOSFET.
VC2
Optional Auxiliary Input Voltage #1:
to supply PI2003 VC power. VC1 should be 10.V or higher to fully enhance the MOSFET.
FT1
PI2003 (U1) Fault Pin:
Monitors U1 fault conditions
FT2
PI2003 (U2) Fault Pin:
Monitors U2 fault conditions
Vout +
:
connected to input return
Vout-
Output -:
connected to MOSFETs sources
Table 1
– PI2003-EVAL1 Evaluation Board terminals description
Cool-ORing
TM
PI2003 Product Description
Picor Corporation • www.picorpower.com
PI2003-EVAL1 User Guide Rev 1.0
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