cui.com

date 07/15/2015

│ page 5 of 11

CUI Inc

│ SERIES: PSD-1100 │ DESCRIPTION: DC-DC HOT-SWAP POWER SUPPLY

PIN

FUNCTION

DESCRIPTION

HIGH / LOW LEVEL

Imax

1,2,3,4,5

12 V output return

V1 (-VE) main output return

6,7,8,9,10

12 V output

V1 (+VE) main output

signal

pin row

“A”

A1

Vstandby +VE

positive output of standby (V2)

A2

signal/logic return

common with V1 & V2 returns

A3

A4

SCL

communications clock line

A5

PSKILL_H

disables power on extraction (recessed pin)

pin status

module

open circuit

“off”

logic “1”

“off”

logic “0”

“on”

signal

pin row

“B”

B1

Vstandby +VE

positive output of standby (V2)

B2

signal/logic return

common with V1 & V2 Returns

B3

not use

reserved

B4

PS_ON_L

(Remote_ON_L)

internally pulled up to 3.3 V via 3.01 kΩ if

PSKILL_H is connected to return

open to A2/B2

short to A2/B2

“off”

“on”

1.05 mA

B5

Ishare (optional)

active current sharing bus (recessed pin)

signal

pin row

“C”

C1

Vstandby +VE

positive output of standby (V2)

C2

not use

reserved

C3

SDA

communications data

C4

SMB_ALERT_L

SMBus interrupt line

logic “1”

“good”

>2.1 V

logic “0”

“fault”

<0.4 A

-5 mA

C5

DC_OK_H

DC OK Signal (recessed pin)

logic “1”

“good”

>2.1 V

logic “0”

“fault”

<0.4 A

-5 mA

signal

pin row

“D”

D1

Vstandby +VE

positive output of standby (V2)

D2

not use

reserved

D3

V1 Vsense (-VE)

V1 negative sense line

D4

not use

reserved

D5

Vstandby_Select

(V2)

selects the voltage of V2 recessed pin

open circuit

short to A2/B2

3.3 V

5 V

signal

pin row

“E”

E1

Vstandby +VE

positive output of standby (V2)

E2

not use

reserved

E3

V1 Vsense (+VE)

V1 positive sense line

E4

DC_IN_OK_H

DC incoming source alarm

logic “1”

“good”

> 2.1 V

logic “0”

“fault”

< 0.4 A

-5 mA

E5

PS_Present

active low, recessed pin, passive signal to detect presence of module, host to provide pull up

resistor connected to V2 to source maximum of 5 mA when module is inserted

DC OUTPUT PIN ASSIGNMENTS

For more information, please visit the product page.