02-Dec-13

SDM300

Application Notes

Connectors

Remote On/Off (INH)

Fan Fail (FF)

Power Good (PG)

Thermal Considerations

U Channel

Terminal block

3 pins 0.25

(6.35) center

HD-601-3P

INPUT CONNECTORS

Standard

Option ‘G’

NEUTRAL

FG

LINE

CN1

Mating JST part no.

VHR-5N or equivalent

(5 pin, 3 used)

Crimp contacts for JST

VHR Series:

SVH-21T-P1.1 - 22~18awg

SVH-41T-P1.1 - 20~16awg

CN2

CN2

OUTPUT CONNECTORS

Standard

VO-

VO+

Single Output models

Mating JST part no.

VHR-6N or equivalent

RTN

V2

V1

Dual Output models

Terminal block M3 screws

0.33 (8.25) 3 pins

Max torque 7 lbs-in (0.8 Nm)

HD-816-3P

SIGNALS & FAN CONNECTORS

CN3

P.G

FF

RTN

INH

FAN1

+

-

FF

Mating JST Part No

XHP-3 with

SXH-002T-P0.6 Pins

Mating JST Part No

XHP-4 Housing

SXH-002T-P0.6 Pins

CN3 Pin 3

Fan Fail

CN3 Pin 2

Return

CN3 Pin 4

On/Off

PSU

CN3 Pin 2

Return

CN3 Pin 1

DC OK

+5 V

1 K

CN3 Pin 2

Return

PSU

0.59 (15.0)

Input

Output

0.59 (15.0)

Input

Output

C6

T1

L6

C26

C21

C6

T1

L6

C26

C21

POWER NOT GOOD

POWER GOOD

Note:

1. Applying <0.3 V or short between pins

4 and 2 turns the output OFF.

2. Applying >4.5 V or open circuit

between pins 4 and 2 turns output ON.

Note:

1. Open collector signal: 28 V maximum

voltage and 5 mA (maximum sink current)

Transistor On : Fan OK

Transistor Off : Fan Fail

Note:

Sink current = 6 mA, Source current = 1 mA

Power is good 100-500 ms after output is in regulation.

Power not good at least 1 ms before loss of regulation.

In order to ensure safe operation of the PSU in the end-use equipment, the temperature of

the components listed in the table (right) must not be exceeded. See drawing above for

component locations. The temperature should be monitored using K type thermocouples

placed on the hottest part of the component (out of any direct airflow).

Temperature Measurement

Component

Max Continuous Temp ºC

C26

85

C6

105

C21

105

L6

130

T1 Coil

140

RTN

V2

V1

Dual Output models

Mating JST part no.

VHR-8N or equivalent

CN2

CN2

Option ‘D’ (Standard on 5-12 V models)

Option ‘H’ (only on dual output models

in convection-cooled applications)

Dinkle PCB terminals P-830 N

2 pins M5 screws

Max torque 15.7 lbs-in (1.8 Nm)

1. Available for OEM quantities, contact Sales.

Single Output Models

Dual Output Models

(1)