Vicor PI2007-EVAL1 48V Bus High Side Active ORing Evaluation Board - Manual (Page 2)

Picor Corporation • picorpower.com PI2007-EVAL1 User Guide Rev. 1.1 Page 2 of 10
Cool-ORing® PI2007 Product Description
The Cool-ORing PI2007 with an external industry
standard 100V N-channel MOSFET provides a complete
Active ORing solution designed for use in wide range (36V
to 75V) 48V Bus redundant power system architectures.
The PI2007 controller with an N-channel MOSFET enables
extremely low power loss with fast dynamic response to
fault conditions, critical for high availability systems.
The PI2007 controller with a low R
DS(on)
N-channel
MOSFET provides very high efficiency and low power loss
during steady state operation. The PI2007 controller
provides an active low fault flag output to the system
during excessive forward current or reverse current, or
during a VC under voltage.
Figure 1 shows a photo of the PI2007-EVAL1 evaluation
board, with two PI2007 controllers and two N-channel
MOSFETs 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 PI2007 Active ORing
controller.
Terminals Maximum Rating:
Vin1, Vin2,
75Vdc/6A
100V (100ms pulse)
Vout
75V/12A
100V (100ms pulse)
1, 2
-0.3V to 17.3V / 10mA
VL1, VL2 (R5=R6=1.5kΩ)* 5.5V
* VL1, VL2 voltage can be higher than 5.5V, but R5 and R6
values have to be increased to accommodate the LEDs
Figure 1: PI2007-EVAL1 Evaluation Board PCB (1.8” x 1.8”)
Terminal Description
Vin1 Power source Input #1 or bus input designed to accommodate up to 6A continuous current.
Vin2 Power source Input #2 or bus input designed to accommodate up to 6A continuous current.
1
PI2007 (U1) Fault pin: Monitors U1 fault conditions and level shifted to be referenced to the Rtn terminal
PI2007 (U2) Fault pin: Monitors U2 fault conditions and level shifted to be referenced to the Rtn terminal
EN1 PI2007 (U1) Enable: leave open to enable the PI2007 and connect to return (Low) to disable PI2007
EN2 PI2007 (U2) Enable: leave open to enable the PI2007 and connect to return (Low) to disable PI2007
VL1 Fault pin
1 LED supply
VL2 Fault pin
LED supply
Vout Output: Q1 and Q2 MOSFETs drain connection, connect to the load high side.
Rtn
Return Connection: Three Rtn connections are available and are connected to a common point, the Ground plane.
Input supplies Vin1, Vin2, and the output load at Vout should all be connected to their respective local Rtn connection .
Table 1: PI2007-EVAL1 Evaluation Board Terminals Description