25W SWITCHING POWER SUPPLY MODULES • • • • • • • • • Single, Dual and Triple Output Models 85-265 VAC Universal Input Voltage Range Pin-Mount and Chassis-Mount Packages CE Mark: UL/CSA/EN60950 Approvals FCC Class A Input Line Filter 0% Minimum Load Requirement Over-Current/Short-Circuit Protection 2-Year Warranty Minimum 165,000-Hour MTBF CHARACTERISTICS AC Input ....................................Universal input voltage range 85-265 VAC single phase or 118-370 VDC. Input Line Frequency ................47-440 Hz. Input Line Protection .................Input line fuse provided. (Note 1.) EMI Filter...................................Standard. Meets conducted EMI requirements of FCC Class A. DC Output .................................See table. Continuous Output Power.........25W, maximum (see Note 10). Output Voltage Adjust ...............Chassis-mount models only: Primary output adjustable ±3%; auxiliary outputs fixed. Dual output models: outputs adjustable ±3% (V1 and V2 move together). See Note 10. Efficiency...................................60%,minimum (115 or 230 VAC input, full load conditions). Hold-Up Time ............................16 ms (115 VAC input), 32 ms (230 VAC input), minimum, nominal load. Overload Protection ..................Power-limit circuit. Short-Circuit Protection.............Continuous. Over-Voltage Protection............Primary output (V1), 120% of rated output voltage, typical. For dual output models with ±12V or ±15V outputs, 120% of 2V1 or -2V2. Soft Start ...................................Standard on all models. Prevents output overshoot and power transformer saturation at turn-on. Design Topology .......................Flyback converter with current-mode control. Frequency of Operation ............65 kHz (fixed). Hi-Pot Isolation..........................5300 VDC, input-to-output for one minute. Noise, Ripple and Spike ...........1% peak-to-peak, max. (Note 3.) Power-Fail Warning...................Optional—chassis-mount, single output, 5V model only: TTL-compatible (logic 1, 4 ms, minimum, before loss of output). To specify the power-fail option, add the letter “P” to the model number suffix. Temperature Range ..................-20°C to +70°C. Output Power De-Rating...........De-rate output power and current linearly 2%/°C from +50°C to +70°C. Temperature Coefficient ............±0.05%/°C over the entire operating temperature range. Relative Humidity ......................0 to 95%, non-condensing. Altitude ......................................0 to 10,000 feet. Cooling ......................................Convection cooling is adequate. When operating in a confined area, moving air is recommended. Storage Temperature ................-40°C to +85°C. Storage Humidity ......................0 to 95%, non-condensing. Mean Time Between Failures ...>165,000 hours. (Note 4.) 06 Model Output Current Output Output Voltage Min. Nom. Max. Voltage Line Load CrossOutput (V) (A) (A) (A) Tol. Reg. Reg. Reg. AC-DC Singles SM1-25-1DCM SM1-25-2DCM SM1-25-3DCM SM1-25-4DCM SM1-25-5DCM SM1-25-6DCM V1 V1 V1 V1 V1 V1 Chassis-Mount: 85-265 VAC Input 5 9 12 15 24 28 0.00 0.00 0.00 0.00 0.00 0.00 5.00 2.80 2.10 1.70 1.05 0.90 5 9 12 15 24 28 0.00 0.00 0.00 0.00 0.00 0.00 5.00 2.80 2.10 1.70 1.05 0.90 +5 -5 +12 - 12 +15 - 15 0.00 0.00 0.00 0.00 0.00 0.00 4.00 1.00 1.00 1.00 0.80 0.80 +5 -5 +12 - 12 +15 - 15 0.00 0.00 0.00 0.00 0.00 0.00 4.00 1.00 1.00 1.00 0.80 0.80 +5 +12 - 12 +5 +15 - 15 0.00 0.00 0.00 0.00 0.00 0.00 4.00 0.20 0.20 3.80 0.20 0.20 +5 +12 - 12 +5 +15 - 15 0.00 0.00 0.00 0.00 0.00 0.00 4.00 0.20 0.20 3.80 0.20 0.20 AC-DC Singles SM1-25-1DPM SM1-25-2DPM SM1-25-3DPM SM1-25-4DPM SM1-25-5DPM SM1-25-6DPM V1 V1 V1 V1 V1 V1 SM2-25-2DCM SM2-25-3DCM V1 V2 V1 V2 V1 V2 SM2-25-2DPM SM2-25-3DPM V1 V2 V1 V2 V1 V2 SM3-25-1DCM SM3-25-2DCM SM3-25-1DPM SM3-25-2DPM — — — — — — 5.00 2.80 2.10 1.70 1.05 0.90 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.4% 0.4% 0.4% 0.4% 0.4% 0.4% — — — — — — 4.00 1.60 1.80 1.80 1.60 1.60 1.0% 4.0% 2.0% 2.0% 2.0% 2.0% 0.1% 0.1% 0.5% 0.5% 0.5% 0.5% 0.5% — 0.3% 0.3% 2.0% — 2.0% 2.0% 2.0% — 2.0% 2.0% 4.00 1.60 1.80 1.80 1.60 1.60 1.0% 4.0% 2.0% 2.0% 2.0% 2.0% 0.1% 0.1% 0.5% 0.5% 0.5% 0.5% 0.5% — 0.3% 0.3% 2.0% — 2.0% 2.0% 2.0% — 2.0% 2.0% Chassis-Mount: 85-265 VAC Input AC-DC Triples V1 V2 V3 V1 V2 V3 0.4% 0.4% 0.4% 0.4% 0.4% 0.4% Pin-Mount: 85-265 VAC Input AC-DC Triples V1 V2 V3 V1 V2 V3 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% Chassis-Mount: 85-265 VAC Input AC-DC Duals SM2-25-1DPM 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% Pin-Mount: 85-265 VAC Input AC-DC Duals SM2-25-1DCM 5.00 2.80 2.10 1.70 1.05 0.90 4.00 0.30 0.30 4.00 0.30 0.30 1.0% 4.0% 4.0% 1.0% 4.0% 4.0% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.5% 0.3% 0.3% 0.5% 0.3% 0.3% — 0.1% 0.1% — 0.1% 0.1% Pin-Mount: 85-265 VAC Input 4.00 0.30 0.30 4.00 0.30 0.30 1.0% 4.0% 4.0% 1.0% 4.0% 4.0% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.5% 0.3% 0.3% 0.5% 0.3% 0.3% — 0.1% 0.1% — 0.1% 0.1% POWER GENERAL 152 Will Drive · Canton, MA 02021 USA · Phone 781-828-6216 · Fax 781-830-1155 · Email [email protected] 25W SWITCHING POWER SUPPLY MODULES Pin-Mount Single Output Models Chassis-Mount Models Pin-Mount Dual / Triple Output Models Chassis-Mount Models Pin SM1-25 SM2-25 1 AC LIne AC LIne 2 AC Neutral AC Neutral 3 -Sense N/C 4 Return V1 5 V1 Common 6 +Sense Common 7 Power Fail V2 Notes A. Dimensions shown are in inches. B. Tolerances = 0.00 ±0.01 inch. 0.000 ±0.005 inch. C. Terminal “SW” on chassis-mount models is for ac line connection through an external switch: No internal connection. Pin-Mount Models Terminal SM1-25 1 AC LIne 2 AC Neutral 3 V1 4 Return 5 N/C 6 N/A 7 N/A SM2-25 AC LIne AC Neutral V2 N/C Common N/C V1 SM3-25 AC LIne AC Neutral V3 V1 Return V2/V3 Common V1 V2 SM3-25 AC LIne AC Neutral V1 Return V1 V3 V2/V3 Common V2 1. An external input line fuse is optional: Use a 2A/250V slow-blow fuse. 2. All measurements are made directly at the terminals of the supply. 3. Peak-to-peak and RMS metering equipment must have a 20 MHz frequency response with probes and cables that maintain a frequency response of 20 Hz to 20 MHz. Output ripple and spikes are measured directly at the output terminals of the power supply with a 0.1 µF ceramic capacitor. The probe ground band must make contact with the output return or common terminal to prevent erroneous noise measurements. 4. MTBF is calculated using the parts stress method in MIL-HDBK 217F (ground benign, TA = +25°C). 5. Output voltage tolerance is measured under nominal load conditions. 6. Line regulation is measured under nominal load conditions as the input voltage is varied from 85 to 265 VAC. 7. Load regulation is measured at 115 VAC or 230 VAC. The output under test is brought to 60% of nominal load; load current is then varied ±40% of nominal while other outputs are held at nominal load conditions. 8. Cross-regulation is tested by changing the load on the primary output from 50% to 100% of nominal load while measuring the voltage change on the auxiliary output under test. 9. Remote sensing links are provided for single output, chassis-mount models for improved load regulation. 10. De-rate output power by 1% for each 1% of remote-sensing compensation or output voltage adjustment. 11. The SM1-25, SM2-25 and SM3-25 series are approved to UL1950 (File E140439), CSA (File LR52335) and to EN60950/IEC950/DIN VDE 0805 (TÜV License R0097573). POWER GENERAL 152 Will Drive · Canton, MA 02021 USA · Phone 781-828-6216 · Fax 781-830-1155 · Email [email protected] 7