EMERSON LPS25 Service Manual

Technical Support: (888) 41-ASTEC or [phone]

Americas: [phone] Europe (UK) 44 (1384) 842-211 Asia (HK) 852-2437-9662

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Special Features

25 Watts

LPS25 Series

Electrical Specs

rev 12.01.03

• Universal input

• 3” x 5” footprint

• Remote sense

• Built-in EMI filter

• Low output ripple

• Adjustable output

• Overvoltage protection

• Overload protection

• 110 KHz switching frequency

• LPX40 enclosure kit available

Input

Input range 85-264 VAC

120-300 VDC
Frequency 47-440 Hz
Inrush current <15 A peak @ 115 VAC;

<30 A peak @ 230 VAC,

cold start @ 25°C
Input current 1 A max. (RMS) @ 115 VAC
Efficiency 70% typical at full load
EMI filter FCC Class B conducted

CISPR 22 Class B conducted

EN55022 Class B conducted

VDE 0878 PT3 Class B conducted
Safety ground leakage
current <0.5 mA @ 50/60 Hz, 264 VAC input

Output

Maximum power 25 W for convection;

40 W with 30 CFM forced air
Adjustment range -5, +10% minimum
Hold-up time 20 ms @ 25 W load, 115 VAC

nominal line
Overload protection Short circuit protection on all

outputs. Case overload protected

@ 110-145% above peak rating
Overvoltage protection 5 V output: 5.7 to 6.7 VDC. Other

outputs 10% to 25% above nominal

output
Remote sense Compensates for 0.5 V lead drop

min. Will operate without remote

sense connected. Reverse

connection protected.

Operating temperature: 0° to 50°C ambient
derate each output at 2.5% per degree from 50° to
70°C

Electromagnetic susceptibility: designed to meet
IEC 801, -2, -3, -4, -5, -6, Level 3

Humidity: Operating; non-condensing 5% to 95%
Vibration: Three orthogonal axes, sweep at

1 oct/min, 5 min. dwell at four major resonances

0.75G peak 5 Hz to 500 Hz, operational
Storage temperature: -40° to 85°C
Temperature coefficient: ±.04% per °C
MTBF demonstrated: >550,000 hours at full load

and 25°C ambient conditions

VDE 0805/EN60950 (IEC950) 11774-3336-1241

(LC#84936)
UL UL1950 E132002
CSA C SA 22.2-234 Level 3 LR53982C
NEMKO EN 60950/EMKO-TUE P95100442

(74-sec) 203
CB Certificate and report 1577, 1578, 1579, 1580
CE Mark (LVD)

Environmental

Safety

Total Power: 25-40 Watts
Input Voltage: 85-264 VAC

120-300 VDC

# of Outputs: Single

EUROPE

Astec House, Waterfront Business Park

Merry Hill, Dudley

West Midlands, DY5 1LX, UK

Telephone: [phone]

Facsimile: 44(1384) 843-355

AMERICAS

5810 Van Allen Way
Carlsbad, CA 92008

Telephone: [phone]

Facsimile: 760-930-0698

77

www.astecpower.com

Ordering Information

ASIA

Units 2111-2116, Level 21

Tower1, Metroplaza

223, Hing Fong Road

Fwai Fong, New Territories

Hong Kong

Telephone: [phone]

Facsimile: 852-2402-4426

Model Output Minimum Maximum Load with Maximum Load with Peak Regulation2 Ripple
Number Voltage Load Convection Cooling 30 CFM Forced Air Load1 P/P (PARD)3

LPS22 5 V 0 A 5 A 8 A 9 A ± 2% 50 mV
LPS23 12 V 0 A 2.1 A 3.3 A 3.7 A ± 2% 120 mV
LPS24 15 V 0 A 1.7 A 2.7 A 3 A ± 2% 150 mV
LPS25 24 V 0 A 1.1 A 1.8 A 1.9 A ± 2% 240 mV

1. Peak current lasting <30 seconds with a maximum 10% duty cycle.

2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.

3. Peak-to-peak with 20 MHz bandwidth and 10 µF in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.

Connector LPS22 LPS23 LPS24 LPS25

SK1-1 Neutral Neutral Neutral Neutral
SK1-3 Line Line Line Line

SK2-1 +5 V +12 V +15 V +24 V
SK2-2 +5 V +12 V +15 V +24 V
SK2-3 +5 V +12 V +15 V +24 V
SK2-4 Common Common Common Common
SK2-5 Common Common Common Common
SK2-6 Common Common Common Common
SK201-1 +Sense +Sense +Sense +Sense
SK201-2 -Sense -Sense -Sense -Sense

Mating Connectors

AC Input: Molex 09-50-8031 (USA)

09-91-0300 (UK)
PINS: 08-58-0111

DC Outputs: Molex 09-50-8061 (USA)

09-91-0600 (UK)
PINS: 08-58-0111

Remote Sense: Molex 22-01-2025

PINS: 08-50-0114

Astec Connector Kit #70-841-006, includes all the above.

Notes:

1. Specifications subject to change without notice.

2. All dimensions in inches (mm), tolerance is + .02”.

3. Mounting holes M1 and M2 should be grounded for EMI purposes.

4. Mounting hole M1 is safety ground connection.

5. Specifications are for convection rating at factory settings at 115 VAC
input, 25°C unless otherwise stated.

6. Warranty: 1 year

7. Weight: 0.5 lb / 0.23 kg

Pin Assignments

LPS25 Series