Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

603-778-2300 www.wallindustries.com Fax 603-778-9797

PSPS25 Series

Single Output

Up to 25 Watts

AC/DC Power Supply

FEATURES

• Low Cost

• High Reliability

• 2 Year Warranty

• 100% Full Load Burn-In Test

• Low Leakage Current < 0.5mA

• Universal AC Input/ Full Range

• Cooling by Free Air Convection

• Fixed Switching Frequency at 100KHz

• Short Circuit, Overload, Over Voltage, and Over Temperature Protected

All specifications are based on 25

We reserve the right to change specifications based on technological advances.

INPUT SPECIFICATIONS

Input Voltage

85 – 264VAC (120 – 370VDC)

Input Frequency

47 ~ 63Hz

AC Current (typical)

0.6A @ 115VAC

0.4A @ 230VAC

Inrush Current (typical)

36A cold start

Leakage Current

< 0.5mA @ 240VAC

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Output Voltage Tolerance (See Note 3)

PSPS-25-3.3: ±3.0% ±2.0% for all other models

Output Power

See Table

Line Regulation

3.3, 5, 7.5V outputs: ±0.5%; 12, 13.5, 15V outputs: ±0.3%; 24, 27, 48V outputs: ±0.2

Load Regulation

3.3V output: ±2.5%; 5 & 7.5V outputs: ±2.0%; 12, 13.5, 15V outputs: ±1.0%; 24, 27, 48V outputs: ±0.5%

Output Current

See Table

Ripple & Noise (See Note 2)

See Table

Setup, Rise Time

200ms, 20ms @ 230VAC

200ms, 30ms @ 115VAC and full load

Hold Up Time

100ms @ 230VAC

20ms @ 115VAC and full load

Temperature Coefficient

±0.03%/°C (0~50°C)

PROTECTION

Over Voltage Protection

See Table

Protection Type: Shutoff output voltage, clamping by Zener diode.

Overload Protection

Above 105% rated output power

Protection Type: Hiccup mode, recovers automatically after fault condition is removed.

Over Temperature

Tj 135°C typically (U1) detect on main control IC.

Protection Type: Shutdown output voltage, recovers automatically after temperature goes down.

GENERAL SPECIFICATIONS

Switching Frequency (fixed)

100KHz

Efficiency (typical)

See Table

Withstand Voltage

3KVAC (input to output), 1.5KVAC (input to FG), 0.5KVAC (output to FG).

Isolation Resistance

100MΩ / 500VDC (input to output, input to FG, output to FG)

ENVIRONMENTAL SPECIFICATIONS

Working Temperature

-10°C to +60°C (refer to output load derating curve)

Storage Temperature

-20°C to +85°C

Working Humidity (non-condensing)

20% ~ 90% RH non-condensing

Storage Humidity (non-condensing)

10% ~ 95% RH

Vibration

10~500Hz, 2G 10min./1cycle, Period for 60 minutes each along X, Y, and Z axes.

MTBF

576,400 hours min.

MIL-HDBK-217 (25°C)

PHYSICAL SPECIFICATIONS

Weight

18 oz.

Dimensions

107(L) x 61(W) x 28(H) mm

Warranty

2 years

SAFETY & EMC (See Note 4)

Safety Standards

UL60950-1, TUV EN60950-1 Approved

EMI Conduction and Radiation

Compliance to EN55022 (CISPR22) Class B

Harmonic Current

Compliance to EN61000-3-2,3

EMS Immunity

Compliance to EN61000-4-2,3,4,5, light industry level, criteria A.