Picor Corporation • picorpower.com

PI2007-EVAL1 User Guide Rev. 1.1

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.

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.

Table 1: PI2007-EVAL1 Evaluation Board Terminals Description