PSS320 Series 320 Watt Single Output AC/DC Power Supply FEATURES ● 2 Year Warranty ● Low Cost, High Reliability ● Fixed Switching Frequency ● Compact Size, Light Weight ● 100% Full Load Burn-In Tested ● Cooling Fan ON/OFF Auto Control ● Built-In EMI Filter, Low Ripple Noise ● AC Input Range Selectable by Switch ● Forced Air Cooling by Built-In DC Fan ● High Efficiency, Low Working Temperature ● Soft Start Circuit, Limiting AC Surge Current ● Short Circuit, Overload, Over Voltage, and Over Temperature Protected SPECIFICATIONS: PSS320 Series o All specifications are based on 25 C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. INPUT SPECIFICATIONS Input Voltage Range 88 ~ 132VAC / 176 ~ 264VAC auto switch (248 ~ 370VDC) Input Frequency 47 to 63Hz AC Current (typical) 6A @ 115VAC 3.5A @ 230VAC Inrush Current (typical) 18A @ 115VAC 36A @ 230VAC Leakage Current < 3.5mA @ 240VAC OUTPUT SPECIFICATIONS Output Voltage See Table Output Power See Table Voltage Tolerance (See Note 3) 5V & 7.5V outputs: ±2.0%; 12V - 48V outputs: ±1.0% Voltage Adjustment Range See Table Line Regulation ±0.5% Load Regulation 5V & 7.5V outputs: ±1.0%; 12V - 48V outputs: ±0.5% Output Current See Table Ripple & Noise (max) (See Note 2) 5V - 24V outputs: 150mVp-p; 27V output: 200mVp-p; 48V output: 240mVp-p Setup, Rise Time 2000ms, 20ms @ full load Hold Up Time (typical) 24ms @ full load Temperature Coefficient ±0.03%/°C (0 ~ 50°C) PROTECTION 105 ~ 135% rated output power Overload Protection Protection Type: Hiccup mode, recovers automatically after fault condition is removed. See Table Over Voltage Protection Protection Type: Hiccup mode, recovers automatically after fault condition is removed. RTH1≥ 65°C Fan On, ≤ 55°C Fan Off, ≥ 70°C (5 ~ 15V) Fan Control, O.T.P RTH1≥ 70°C Fan On, ≤ 65°C Fan Off, ≥ 80°C (24 ~ 48V) Protection Type: Hiccup mode, recovers automatically after fault condition is removed. GENERAL SPECIFICATIONS Switching Frequency 90KHz Efficiency 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 -10°C to +60°C (refer to output load derating curve) Storage Temperature -20°C to +85°C Working Humidity 20 ~ 90% RH non-condensing Storage Humidity 10 ~ 95% RH Cooling Forced air cooling by built-in DC fan. Vibration 10 ~ 500Hz, 2G 10min./1 cycle, 60min each along X, Y, Z axes. MTBF 188,700 hours min. @ 25°C (MIL-HDBK-217F) PHYSICAL SPECIFICATIONS Weight 1080 grams Dimensions 215(L) x 115(W) x 50(H) mm Warranty 2 years SAFETY & EMC Safety Standards UL60950-1 approved Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 PSS320 Series 320 Watt Single Output AC/DC Power Supply OUTPUT VOLTAGE / CURRENT RATING CHART Model Number Output Voltage Input Voltage PSS-320-5 Voltage Over Voltage Adjust. Range Protection Output Current Ripple & Noise Output Power Efficiency 5 VDC 4.5 ~ 5.7V 5.75 ~ 6.75V 50A 150mVp-p 250W 77% 7.5 VDC 6 ~ 9V 9.4 ~ 10.9V 36A 150mVp-p 270W 80% 12 VDC 10 ~ 13.2V 13.8 ~ 16.2V 25A 150mVp-p 300W 82% 13.5 VDC 12 ~ 15V 15.5 ~ 18.2V 22A 150mVp-p 297W 83% 15 VDC 13.5 ~ 18V 18 ~ 21V 20A 150mVp-p 300W 84% 24 VDC 20 ~ 26.4V 27.6 ~ 32.4V 12.5A 150mVp-p 300W 86% PSS-320-27 27 VDC 26 ~ 32V 33.7 ~ 39.2V 11A 200mVp-p 297W 86% PSS-320-48 48 VDC 41 ~ 56V 57.6 ~ 67.2V 6.5A 240mVp-p 312W 87% PSS-320-7.5 PSS-320-12 PSS-320-13.5 PSS-320-15 PSS-320-24 88 ~ 132 VAC or 176 ~ 264 VAC NOTES 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load, and 25°C ambient temperature. 2. Ripple & noise are measured at 20MHz bandwidth by using a 12" twisted pair-wire terminated with a 0.1uF& 47uF parallel capacitor. 3. Tolerances include set up tolerance, line regulation, and load regulation. BLOCK DIAGRAM fosc: 90KHz DERATING CURVE STATIC CHARACTERISTICS Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 PSS320 Series 320 Watt Single Output AC/DC Power Supply MECHANICAL DRAWING Unit: mm Terminal Pin No. Assignment Pin No. 1 2 3 4~6 7~9 Assignment AC/L AC/N FG DC OUTPUT (-V) DC OUTPUT (+V) Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797