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

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

PSSP320 Series

Single Output

320 Watt with PFC Function

AC/DC Switching Power Supply

FEATURES

● 3 Year Warranty

● Built-In Fan Speed Control

● Fixed Switching Frequency

● 100% Full Load Burn-In Tested

● Universal AC Input / Full Range

● Forced Air Cooling by Built-In DC Fan

● Built-In Active PFC Function, PF > 0.95

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

SPECIFICATIONS: PSSP320 Series

All specifications are based on 25

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

INPUT SPECIFICATIONS

Input Voltage Range (See Note 5)

88 ~ 264VAC (124 ~ 370VDC)

Input Frequency

47 to 63Hz

AC Current (typical)

3.3V output: 2.5A @ 115VAC, 1.5A @ 230VAC

5V-48V outputs: 5A @ 115VAC, 2.5A @ 230VAC

Inrush Current (typical)

20A @ 115VAC

40A @ 230VAC

Leakage Current

< 1mA @ 240VAC

Power Factor (typical)

PF > 0.95 @ 230VAC

PF > 0.98 @ 115VAC and full load

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Output Power

See Table

Voltage Tolerance (See Note 3)

5V & 7.5V outputs: 2.0%;

Other outputs: 1.0%

Voltage Adjustment Range

See Table

Line Regulation

3.3V-7.5V outputs: 0.5%;

12V-15V outputs: 0.3%;

24V-48V outputs: 0.2%

Load Regulation

3.3V output: 1.5%;

5V & 7.5V outputs: 1.0%;

12V - 48V outputs: 0.5%

Output Current

See Table

Ripple & Noise (max) (See Note 2)

See Table

Setup, Rise Time

800ms, 50ms @ 230VAC and full load

2500ms, 50ms @115VAC and full load

Hold Up Time (typical)

16ms @ 230VAC and full load

16ms @ 115VAC and full load

Temperature Coefficient

±0.03%/°C (0 ~ 50°C)

PROTECTION

Overload Protection

105 ~ 135% rated output power

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

Over Voltage Protection

See Table

Protection Type: Shutdown output voltage, re-power on to recover.

Over Temperature Protection

80°C ±5°C (70°C ±5°C: 3.3V & 5V only) (TSW1: detect on heatsink of power transistor)

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

GENERAL SPECIFICATIONS

Switching Frequency

100KHz

Efficiency (typical)

See Table

Withstand Voltage

3000VAC (Input to Output), 1500VAC (Input to FG), 500VAC (Output to FG)

Isolation Resistance

100MΩ/500DC (Input to Output, Input to FG, and Output to FG)

ENVIRONMENTAL SPECIFICATIONS

Working Temperature

-20°C to +65°C (refer to output load derating curve)

Storage Temperature

-40°C to +85°C

Working Humidity

20 ~ 90% RH non-condensing

Storage Humidity

10 ~ 95% RH

Vibration

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

Cooling

Forced air cooling by built-in DC fan

MTBF

207,000 hours min. @ 25°C (MIL-HDBK-217F)

PHYSICAL SPECIFICATIONS

Weight

1179 grams

Dimensions

215(L) x 115(W) x 50(H) mm

Warranty

3 years

SAFETY & EMC

Safety Standards

UL60950-1, TUV EN60950-1 approved

EMI Conduction & Radiation

Compliance to EN55022 (CISPR22) Class B

Harmonic Current

Compliance to EN61000-3-2,-3

EMS Immunity

Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, light industry level, criteria A