Data Sheet

Compact Power Line

CP2000DC54-PE DC/DC Converter

Lineage Power

7

Signal Definitions

All hardware alarm signals (Fault, Power_OK, I_Limit, OTW) are open drain FETs. These signals should

be pulled HI to either 3.3V or 5V. Maximum sink current 5mA. An active LO signal (< 0.4Vdc) state is

referenced to Logic GRD unless otherwise stated. Contact your Lineage Power representative for more

details.

Function

Label

Type

Description

Output Enable

Enable

Input

If shorted to LOGIC_GRD, the PEM output is enabled

when using I

reset a latched OFF PEM.

Output Good

Power_OK

Output

An open drain FET; normally HI, indicating output power is

present. Changes to LO when the main output is OFF,

Current Limit

I_Limit

Output

An open drain FET; normally HI, indicating normal

operation. Changes to LO when in current limit,

I

Alert#_0

Alert#_1

Output

Interrupt signal via I

requested from the host controller. This signal pin is pulled

up to 3.3V via a 10kΩ resistor and switches to active LO

when an interrupt occurs.

PEM Fault

Fault

Output

Indicates that an internal fault exists. An open drain FET;

normally HI, changes to LO.

Module Present

MOD_PRES

Output

Used to Indicate presence of PEM.

ON/OFF

ON/OFF

Input

Short pin, connects last and breaks first; used to activate

and deactivate output during hot-insertion and extraction,

respectively. Ref: V_OUT (-DC)

Margining

Margin

Input

Allows changing of output voltage through an analog

voltage input or via resistor divider.

Over-Temperature Warning

OTW

Output

An open drain FET; normally HI, changes to LO

approximately 5°C prior to thermal shutdown.

PEM address

Unit_addr

Input

Voltage level addressing of PEMs within a single shelf.

Ref: V_OUT (-DC).

Shelf Address

Shelf_addr

Input

Voltage level addressing of PEMs within multiple shelves.

Ref: V_OUT (-DC).

Back bias

8V_INT

_

Diode OR’ed 8Vdc drain; used to back bias

microprocessors and DSP of failed PEM from operating

PEMs. Ref: V_OUT (-DC).

Mux Reset

Reset

Input

Resets the I

Standby power

5VA

Output

5V at 0.75A provided for external use by either adjacent

power supplies or the using system.

Current Share

Ishare

-

A single wire interface between each of the power unit

forces them to share the load current. Ref: V_OUT (-DC).

I

SCL_0, SDA_0 Input

I

I

SCL_1, SDA_1 Input

I