MU425S

425W Single Output

Medical Power Supply

www.slpower.com

MU425S

REV 3.1

14-APR-16

2

Leakage

Current

Earth: <750μA@264Vac, 60Hz, NC

<1.5mA@264Vac, SFC

Touch: <100uA @264Vac, NC

<500uA @264Vac, SFC

Short Circuit

Protection

Main Output & 5Vsb: Cycling type, auto recovery.

Fan Output: Recovery only after removal of short and

load. See note 5 above.

Power Factor

>0.99 @ 115Vac, Full Load

>0.95 @ 230Vac, Full Load

Overvoltage

Protection

OVP latch, see chart for trip ranges.

5V standby output (latch), see chart for trip range.

Output Power

425W continuous (24V model), with 200 lfm

airflow. 408W for 18V, 385W for 12V models.

300W convection cooled (280W for 12V model)

Isolation

Input-Output:

2 MOPP

Input-Ground:

1 MOPP

Output-Ground: 1500Vdc

Transient Response

50% load step, ∆i/∆t: <0.2A/μS. Max Voltage

Deviation = 5%. Recover to within 1% of

nominal within 500µS

Operating

Temperature

-10 to 70°C. Starts up- 40°C. The unit will meet all

published specifications after a warm-up period

Ripple and Noise

0.5%rms, 1% pk-pk, see chart on page 1.

Temperature

Derating

Derate output power linearly above 50°C to 50% at 70°C

Common Mode

Noise

230Vac, 50/60Hz. For high frequency noise

and/or test set-up information, consult SL

Power.

Storage

Temperature

-40°C to +85°C

Output Voltage

See chart on page 1. Initial setpoint within 0.5%

of nominal. Adjustable +/-5% from nominal.

Altitude

Operating: up to 5000m (derating may be required

above 3000m, consult factory)

Non-operating: -500 to 40,000 ft.

Minimum Load

Not required for main output or 5Vsb. 12V Fan

output requires minimum load of 0.5A on main

output in order to be within its regulation band

Relative Humidity

5% to 95%, non-condensing

Total Regulation

See chart on page 1.

Shock

Operating: Half-sine, 20gpk, 10ms, 3 axes, 6 shocks total.

Non-Operating: Half-sine, 40 gpk, 10 ms, 3 axes, 6 shocks

total

Vibration

Operating: 0.003g/Hz, 1.5grms overall, 3 axes,

10 min/axis. Non-Operating: 0.026g2/Hz,

5.0grms overall, 3 axes, 1 hr/axis

Safety Standards

Dimensions

W: 3.3” x L: 6.2” x H: 1.62”

W: 84mm x L: 157.5mm x H: 41mm

MTBF

356,330 hours, per Telcordia 332, Issue 6, 25°C, full rated

load (w/airflow) at 110Vac input.

Weight

670g

E-Cap Life

7 years, based on typical operation of 12 hours/day, 261

days/year at 40°C ambient temp.

Auxiliary Signals

Power Good/

Power Fail:

Signal is HIGH within 500mS after the main

output is within regulation band upon AC turn

on. Goes LOW within 4mS min. before the

main DC output drops to <90% of nominal

when AC turns off.

DC OK:

Goes HIGH when main DC output is above 90% of nominal

voltage and goes LOW when the output is below 90% of

rated main output DC voltage

5V Standby Output:

5V @ 2A, +/-5% regulation over all changes in

main output load current.

Fan Output:

12V@1A (air cooled ) or 0.5A (convection),

+/-10% regulation for load change of 0.5A to FL on the

main output.

Remote Sense:

Compensates for up to 0.16V voltage drop.

Max. deviation of 5% (main output) any 50%

step above 5% load

Inhibit:

Logic HIGH or open = ON

Logic LOW or short to ground = OFF

Connector Information

Input Connector

J101

Main DC Output

J302, J303

Fan Output

J301

Signal Connector

J401

PIN 1) FG

PIN 4) NC

Term 1 – J302: (+V)

Term 2 – J303: (─V)

PIN 1) 12V Fan (+)

PIN 2) 12V Fan (─)

PIN 1) Remote Sense (+)

PIN 5) Remote Inhibit

PIN 8) +5Vsb Output

PIN 2) NC

PIN 5) AC Line

PIN 2) Common

PIN 6) Power Good

PIN 9) DC OK

PIN 3) AC Neutral

PIN 3) Remote Sense (─)

PIN 7) +5Vsb Output

PIN 10) Common

PIN 4) NC

Mating Connector:

Tyco/AMP 640250-5

Pins: 770476-1

Mating Connector:

Molex 19141-0058

19141-0063

19141-0083

Mating Connector:

Tyco AMP

1375820-2

Pins: 1375819

Mating Connector:

Molex 90142-0010

Pins: 90119-2110