17-Apr-07

Supply 1

Output

V1

Comm

Return

CN3 Pin 2 Current Share

Supply 2

LOAD

Output

Return

CN3 Pin 2 Current Share

SMR Series

Models and Ratings

Output

Power

Output

Output Current

Model

Number

Maximum

750 W

12 V

62.50 A

75.00 A

120 mV

SMR800PS12

15 V

50.00 A

56.00 A

150 mV

SMR800PS15

18 V

41.67 A

50.00 A

180 mV

SMR800PS18

800 W

24 V

33.39 A

37.50 A

240 mV

SMR800PS24

27 V

29.62 A

33.33 A

270 mV

SMR800PS27

36 V

25.00 A

29.60 A

360 mV

SMR800PS36

48 V

16.67 A

18.75 A

480 mV

SMR800PS48

54 V

14.81 A

16.67 A

540 mV

SMR800PS54

60 V

13.33 A

15.00 A

600 mV

SMR800PS60

Notes

2.00

(50.8) 2.50

(63.5)

1.59

(40.4)

BA

4.25

(108.0)

Terminal Blocks

M3.5 Screw 8 Pins 9.5 mm center

5.00 (127.0)

6.00 (152.4)

2.09

(53.0)

1.59

(40.3)

9.17 (233.0)

0.88 (22.25)

2.50

(63.6)

1.75

(44.45)

1.25 (31.9)

A

B

A

A

A

A

B

B

B

B

0.59

(15.0)

1.62

(41.25)

0.32 (8.25)

2.50 (63.5)

STANDARD

Terminal Block

M3 Screw

3 Pins 8.25 mm center

2.50 (63.5)

OPTION ‘-D’

IEC320 or equivalent

A

B

B

A

9.17 (233.0)

2.00

(50.8)

2.50

(63.5)

2.50 (63.5)

Pin 1

Pin 7

A Mounting Hole 8 Places

0.22 (5.6)

0.25 (6.4)

UNC6-32

(Zn-plated)

B Mounting Hole 8 Places

0.22 (5.6)

0.25 (6.4)

(Zn (yellow) -plated)

M4

For SMS

Version

only

CN3

Mechanical Details

All dimensions are in inches (mm).

Weight: 3.30 lbs (1.5 kg) approx.

Logic connector CN3 mates with:

JST XHP-7 or equivalent &

JST SXH-002T-P0.6 crimp terminals.

Maximum mounting screw penetration:

0.12 (3.0) on base & 0.25 (6.3) on each side.

CN3 (Signals)

Pin

Function

1

Current monitor

2*

Current share

3

Return

4

Power good

5

Remote On/Off

6*

-Remote sense

7*

+Remote sense

Options

• Current share and internal oring diode add suffix ‘-I’ to model number. Note that this option includes output blocking diodes.

Remote sense is not available with current share.

• Optional IEC320 inlet add suffix‘-D’ to model number.

• Optional Molex output connector add suffix ‘-E’ to model number.

• For U-Channel version replace ‘SMR’ in the model number with ‘SMS’ e.g. SMS800PS12 (note that 25 CFM cooling air is required).

Dimensions are 8.00(l) x 4.33(w) x 2.56(h) (203.2 x 110.0 x 65.0).

• For top mounting fan version replace ‘SMR’ in the model number with ‘SMT’ e;g; SMT800PS12.

Dimensions are 8.00(l) x 4.33(w) x 3.40(h) (203.2 x 110.0 x 86.4).

• For multiple option codes place codes in alphabetical order. e.g. SMR800PS12-DI.

Application Notes

Remote On/Off

Power Good

CN3 Pin 5,

control connector

ON/OFF

PSU

CN3 Pin 3,

control connector

Return

Note:

Applying <0.3 V or short between pins 5 and 3 turns

the output OFF. Applying >4.5 V or open circuit

between pins 5 and 3 turns output ON.

Parallel Connect with

Current Share Option

CN3 Pin 4,

control connector

Power Good

+5 V

1 K

CN3 Pin 3,

control connector

Return

POWER NOT GOOD

POWER GOOD

1. This peak can be taken for 500 µs only, average power should not exceed the maximum power.

2. Ripple & Noise is measured using 0.1 µF ceramic and 22 µF electrolytic capacitor, 20 MHz bandwidth.

3. Alternative output voltages available. Consult sales.

4. Load regulation increases to 2% for 0-100% load change.

Sink current = 6 mA

Source current = 4 mA

*If optional current share if

fitted then remote sense

function is excluded.