PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Input voltage up to 144 V DC Single output of 12...48 V DC No input to output isolation • High efficiency up to 95% • Extremely wide input voltage range • Very good dynamic properties • Input undervoltage lock-out • External output voltage adjustment and inhibit • Two temperature ranges 50 2.0" 25 1.0" • Continuous no-load and short-circuit proof 70 2.8" • No derating Safety according to IEC/EN 60950 Summary The PSA series of positive switching regulators is designed as power supply modules for electronic systems. Their major advantages include a high level of efficiency that remains virtually constant over the entire input range, high reliability, low ripple and excellent dynamic response. Modules with input voltages up to 144 V are specially designed for battery-driven mobile applications. The case design allows operation at nominal load up to 71°C without additional cooling. Type Survey and Key Data Table 1: Type survey 1 2 Efficiency 2 Output voltage Uo nom [V DC] Output current Io nom [A] Input voltage range Ui [V DC] 1 Input voltage Ui nom [V DC] Type designation Options hmin [%] htyp [%] 12 1.5 18...144 60 86 87 PSA 121.5-7iR -9, P, Y 15 1.5 22...144 60 24 1.5 31...144 60 87 89 PSA 151.5-7iR 92 93 PSA 241.5-7iR 36 1.2 44...144 80 94 95 PSA 361-7iR 48 1.0 58...144 80 94 95 PSA 481-7iR Surges uo to 156 V for 2 s. See also: Electrical Input Data: ∆Uio min. Efficiency at Ui nom and Io nom. Non standard input/output configurations or special custom adaptions are available on request. See also: Commercial Information: Inquiry Form for Customized Power Supply. Table of Contents Page Page Summary .......................................................................... 1 Type Survey and Key Data .............................................. 1 Type Key .......................................................................... 2 Functional Description ..................................................... 2 Electrical Input Data ........................................................ 3 Electrical Output Data ..................................................... 4 Auxiliary Functions .......................................................... 6 Electromagnetic Compatibility (EMC) ............................. 8 Immunity to Environmental Conditions ........................... 9 Mechanical Data ............................................................ 10 Safety and Installation Instructions ............................... 10 Description of Options ................................................... 12 Accessories ................................................................... 12 EC Declaration of Conformity ....................................... 13 REV. SEP 23, 2003 Page 1 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Type Key and Product Marking PSA 12 1.5 -7 i R P Y Positive switching regulator in case A01 .................... PSA Nominal output voltage in volt ................................ 12...48 Nominal output current in ampere ........................... 1...1.5 Operational ambient temperature range TA –25...71°C ........................................................... -7 –40...71°C (option) .............................................. -9 Inhibit input ........................................................................ i Control input for output voltage adjustment 1 .................. R Potentiometer 1 (option) ................................................... P PCB soldering pins 0.5 ∞ 1.0 mm (option) ...................... Y 1 R-Control excludes option P and vice versa. Example: PSA 121.5-7iPY = A positive switching regulator with a 12 V, 1.5 A output, ambient temperature range of –25…71°C, inhibit input, potentiometer and small soldering pins. Functional Description The switching regulators are using the buck converter topology. See also: Technical Information: Topologies. The input is not electrically isolated from the output. During the on period of the switching transistor, current is transferred to the output and energy is stored in the output choke in the form of flux. During the off period, this energy forces the current to continue flowing through the output, to the load and back through the freewheeling diode. Regulation is accomplished by varying the on to off duty ratio of the power switch. These regulators are ideal for a wide range of applications, where input to output isolation is not necessary, or where already provided by an external front end (e.g. a transformer with rectifier). To optimise customer’s needs, additional options and accessories are available. 03016 Io Input Filter Ii Ui Vo+ Vi+ i Control circuit Ce Uo R Go– Gi– Option P Fig. 1 Block diagram REV. SEP 23, 2003 Page 2 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Electrical Input Data General Conditions: TA = 25°C, unless TC is specified Table 2a: Input data Input PSA 121.5 Characteristics Ui Operating input voltage Conditions 1 DUio min Min. diff. voltage Ui – Uo Io = 0...Io nom TC min...TC max Ui o Undervoltage lock-out Ii 0 No load input current Io = 0, Ui min...Ui max I inr p Peak value of inrush current Ui nom t inr r t inr h ui RFI Input RFI level, EN 55011/22 Ui nom, Io nom 0.15...30 MHz 2 min typ 18 PSA 151.5 max min 144 22 typ 6 PSA 241.5 max min 144 31 typ max Unit 144 V DC 7 12 7 18 20 22 20 20 150 150 A Rise time 2.5 2.5 2.5 µs Time to half-value 15 15 15 B B B Table 2b: Input data Input PSA 361 Characteristics Ui Operating input voltage Conditions 1 DUio min Min. diff. voltage Ui – Uo 1 2 mA 150 Ui o Undervoltage lock-out Io = 0...Io nom TC min...TC max min typ 44 PSA 481 max min 144 58 8 31 Ii 0 No load input current Io = 0, Ui min...Ui max I inr p Peak value of inrush current Ui nom typ max Unit 144 V DC 10 44 25 25 mA 150 150 A µs t inr r Rise time 2.5 2.5 t inr h Time to half-value 15 15 ui RFI Input RFI level, EN 55011/22 Ui nom, Io nom 0.15...30 MHz 2 B B Surges up to 156 V for 2 s (complying to LES-DB standard for 110 V - batteries). With input filter FP 144 ( See :Accessories) and 2 × 3.3 µF/250 V MKT-capacitors. External Input Circuitry The sum of the lengths of the supply lines to the source or to the nearest capacitor ≥100 µF or to the nearest external input filter which includes such a capacitor (a + b) should not exceed 2.0 m (3.0 m twisted). An external input filter (FP 144, see Accessories) is recommended in order to prevent power line oscillations and reduce superimposed interference voltages. See also: Technical Information. REV. SEP 23, 2003 04016 + Vi+ Vo+ Gi– Go– a b Fig. 2 Switching regulator with long supply lines. Page 3 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Electrical Output Data General Conditions: – TA = +25°C, unless TC is specified – With R or option P, output voltage Uo = Uo nom at Io nom Table 3a: Output data Output PSA 121.5 Characteristics Uo Output voltage 1 Io Output current IoL Output current limitation response 1 uo Output voltage noise Switching freq. Total Conditions min Ui nom, Io nom 11.93 Ui min...Ui max TC min...TC max typ PSA 151.5 max min typ 12.07 14.91 PSA 241.5 max min 15.09 23.86 Unit 24.14 V A 0 1.5 0 1.5 0 1.5 1.5. 1.9 1.5 1.9 1.5 1.9 Ui nom, Io nom IEC/EN 61204 2 BW = 20 MHz 20 35 25 45 45 90 24 39 29 49 50 95 Static line regulation Ui min...Ui max, Io nom 40 80 40 80 40 80 DUo l Static load regulation Ui nom, Io = 0...Io nom 20 50 20 50 30 60 uo d Dynamic load regulation Ui nom Io nom ↔ 1/3 Io nom IEC/EN 61204 2 50 50 50 50 50 60 aUo Voltage deviat. Recovery time Temperature coefficient ∆Uo/∆TC (TC min...TC max) Ui min...Ui max Io = 0...Io nom Output Uo Output voltage 1 Io Output current IoL Output current limitation response 1 uo Output voltage noise Switching freq. Total Conditions min Ui nom, Io nom Ui min...Ui max TC min...TC max typ ±2 ±3 mV/K ±0.02 %/K PSA 481 max min 35.78 36.22 0 1.2 typ max Unit 47.71 48.29 V 1.2 0 1.0 A 1.5 1.0 1.3 Ui nom, Io nom IEC/EN 61204 2 BW = 20 MHz 45 90 50 120 50 95 55 125 Static line regulation Ui min...Ui max, Io nom 80 120 90 120 DUo l Static load regulation Ui nom, Io = 0...Io nom 40 80 60 100 uo d Dynamic load regulation Ui nom Io nom ↔ 1/3 Io nom IEC/EN 61204 2 60 60 60 60 td aUo Recovery time Temperature coefficient ∆Uo/∆TC (TC min...TC max) Ui min...Ui max Io = 0...Io nom See also: Thermal Considerations. See: Technical Information: Measuring and Testing. REV. SEP 23, 2003 Page 4 of 13 µs ±0.02 DUo U Voltage deviat. mV ±2 PSA 361 Characteristics mVpp ±0.02 Table 3b: Output data 2 max DUo U td 1 typ mVpp mV µs ±5 ±6 mV/K ±0.02 ±0.02 %/K PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Uo 05010 uod Parallel and Series Connection DU o I Outputs of equal nominal voltages can be parallel-connected. However, the use of a single unit with higher output power, because of its power dissipation, is always a better solution. t In parallel-connected operation, one or several outputs may operate continuously at their current limit knee-point, which will cause an increase of the heat generation. Consequently, the max. ambient temperature should be reduced by 10 K. t Fig. 3 Dynamic load regulation. Outputs can be series-connected with any other module. In series-connection the maximum output current is limited by the lowest current limitation. Electrically separated source voltages are needed for each module! Thermal Considerations Short Circuit Behaviour When a switching regulator is located in free, quasi-stationary air (convection cooling) at a temperature TA = 71°C and is operated at its nominal output current Io nom, the case temperature TC will not exceed 95°C after the warmup phase, measured at the Measuring point of case temperature TC (see: Mechanical Data). A constant current limitation circuit holds the output current almost constant whenever an overload or a short circuit is applied to the regulator's output. It acts self-protecting and recovers – in contrary to the fold back method – automatically after removal of the overload or short circuit condition. uod td td I o/I o nom 1 0 ≥10 µs ≥10 µs Under practical operating conditions, the ambient temperature TA may exceed 71°C, provided additional measures (heat sink, fan, etc.) are taken to ensure that the case temperature TC does not exceed its maximum value of 95°C. Example: Sufficient forced cooling allows TA max = 85°C. A simple check of the case temperature TC (TC ≤ 95°C) at full load ensures correct operation of the system. Uo /Uo nom 1.2 1.0 0.8 Io L 0.6 0.2 Forced cooling 0 05031 1.0 TC max 50 60 70 80 90 100 TA [ C] Fig. 4 Output current derating versus temperature Output Protection A voltage suppressor diode which in worst case conditions fails into a short circuit, protects the output against an internally generated overvoltage. Such an overvoltage could occur due to a failure of either the control circuit or the switching transistor. The output protection is not designed to withstand externally applied overvoltages. The user should ensure that systems with Power-One power supplies, in the event of a failure, do not result in an unsafe condition (fail-safe). REV. SEP 23, 2003 0.2 0.4 0.6 0.8 1.0 1.2 Fig. 5 Overload, short-circuit behaviour Uo versus Io. Convection cooling TA min 05033 0.4 Io /Io nom 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 Io nom DU o I Page 5 of 13 1.4 Io /Io nom PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Auxiliary Functions i Inhibit for Remote On and Off The inhibit input allows the switching regulator output to be disabled via a control signal. In systems with several units, this feature can be used, for example, to control the activation sequence of the regulators by a logic signal (TTL, CMOS, etc.). An output voltage overshoot will not occur when switching on or off. Iinh [mA] i I inh U inh Go– Gi– Fig. 7 Definition of Iinh and Uinh 06010 4 3 2 06001 Uo /Uo nom 1 Uinh = 2.4 V Uinh = 0.8 V 5 1 06009 Vo+ Vi+ Note: With open i-input, output is enabled (Uo = on) Uo on 0.1 0 Uo off t tf tr Inhibit 1 0 -50 -40 -30 -20 -10 0 10 20 30 40 50 Uinh [V] Fig. 6 Typical inhibit current Iinh versus inhibit voltage Uinh t 0 Fig. 8 Output response as a function of inhibit signal Table 4: Inhibit characteristics Characteristics Uinh Inhibit input voltage to keep regulator output voltage... Uo = on Uo = off tr Switch-on time after inhibit command tf Ii inh Conditions min Ui min...Ui max TC min...TC max typ max Unit –10 +0.8 V DC +2.4 +50 2 Switch-off time after inhibit command Ui = Ui nom RL = Uo nom /Io nom Input current when inhibited Ui = Ui nom 10 REV. SEP 23, 2003 Page 6 of 13 ms 4 mA PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) R Control for Output Voltage Adjustment Note: With open R input, Uo ≈ Uo nom. R excludes option P. Vo+ The output voltage Uo can either be adjusted with an external voltage (Uext) or with an external resistor (R1 or R2). The adjustment range is 0…108% of Uo nom. The minimum differential voltage DUio min between input and output (see: Electrical Input Data) should be maintained. Undervoltage lock-out = Minimum input voltage. Vo+ R + Uext 4000 Ω R + – R1 G Go – Fig. 10 Voltage adjustment with external resistor R1 or R2 06035 Uref 4000 Ω b) Uo = 0...100% Uo nom, using R1 between R and Go–: + – 4000 Ω • Uo R1 ≈ ––––––––––– Uo nom – Uo G Go – Uo nom • R1 Uo ≈ ––––––––––– R1 + 4000 Ω c) Uo = Uo nom...Uo max, using R2 between R and Vo+: Uo max = Uo nom + 8% Fig. 9 Voltage adjustment with Uext between R and Go– a) Uo = 0...108% Uo nom, using Uext between R and Go–: Uext Uo Uext ≈ 2.5 V • ––––– Uo ≈ Uo nom • ––––– Uo nom 2.5 V Caution: To prevent damage Uext should not exceed 20 V, nor be negative and R2 should never be less than 47 kΩ. REV. SEP 23, 2003 06036 Uref R2 4000 Ω • Uo • (Uo nom – 2.5 V) R2 ≈ –––––––––––––––––––––––– 2.5 V • (Uo – Uo nom) Uo nom • 2.5 V • R2 Uo ≈ –––––––––––––––––––––––––––––––– 2.5 V • (R2 + 4000 Ω) – Uo nom • 4000 Ω LED Output Voltage Indicator A yellow output indicator LED shines when the output voltage is higher than approx. 3 V. Page 7 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Electromagnetic Compatibility (EMC) Electromagnetic Immunity General condition: Case not earthed. Table 5: Immunity type tests Phenomenon Standard 1 Voltage surge IEC 60571-1 Electrostatic discharge 2 3 4 Coupling mode 2 Value applied Waveform Source Imped. i/c, +i/–i 800 Vp 100 µs 100 Ω 1500 Vp 50 µs 3000 Vp 5 µs 4000 Vp 1 µs 7000 Vp 100 ns 10 positive and 10 negative discharges yes B4 26…1000 MHz yes A 1 min positive 1 min negative bursts per coupling mode yes A4 yes A4 2Ω 5 pos. and 5 neg. surges per coupling mode 150 Ω 0.15...80 MHz yes A 1 pos. and 1 neg. voltage surge per coupling mode 330 Ω contact discharge to case 8000 Vp 1/50 ns Electromagnetic IEC/EN field 61000-4-3 3 antenna 10 V/m AM 80% 1 kHz Electrical fast transient/burst IEC/EN 61000-4-4 3 i/c, +i/–i 2000 Vp bursts of 5/50 ns 5 kHz rep. rate transients with 15 ms burst duration and a 300 ms period 50 Ω Surge IEC/EN 61000-4-5 2 1.2/50 µs 12 Ω IEC/EN 61000-4-6 3 4000 Vp i/c 1000 Vp +i/–i 500 Vp i, o, signal wires 140 dBµV (10 Vrms) AM 80% 1 kHz In Peroper. form. 3 B 4 4 Test procedure yes IEC/EN 61000-4-2 Conducted disturbances 1 Class Level B4 For related and previous standards see: Technical Information: Safety & EMC. i = input, o = output, c = case. A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible. External input filter FP 144 necessary. Electromagnetic Emission For emission levels refer to: Electrical Input Data. [dBµV] 90 07012 80 EN 55022 A 70 EN 55022 B 60 50 40 30 20 10 REV. SEP 23, 2003 20 30 10 5 2 1 0.5 0.1 0.05 MHz 0.02 0.01 0 Fig. 11 Typical disturbance voltage (quasi-peak) at the input according to EN 55011/22 measured at Ui nom and Io nom. Page 8 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Immunity to Environmental Conditions Table 6: Mechanical stress Test Method Standard Test Conditions Status Damp heat steady state IEC/DIN IEC 60068-2-3 MIL-STD-810D section 507.2 Temperature: Relative humidity: Duration: 40 ±2 °C Ea Shock (half-sinusoidal) IEC/EN/DIN EN 60068-2-27 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 100 gn = 981 m/s2 6 ms 18 (3 each direction) Unit operating Eb Bump (half-sinusoidal) IEC/EN/DIN EN 60068-2-29 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 40 gn = 392 m/s2 6 ms 6000 (1000 each direction) Unit operating Fc Vibration (sinusoidal) IEC/EN/DIN EN 60068-2-6 MIL-STD-810D section 514.3 Acceleration amplitude: Frequency (1 Oct/min): Test duration: 0.7 mm (10...60 Hz) Unit 10 gn = 98 m/s2 (60...2000 Hz) operating 10...2000 Hz 7.5 h (2.5 h each axis) Ca Unit not operating 93 +2/-3 % 56 days Fda Random vibration wide band Reproducibility high IEC 60068-2-35 DIN 40046 part 23 Acceleration spectral density: Frequency band: Acceleration magnitude: Test duration: 0.2 g2 /Hz 20...500 Hz 9.8 grms 3 h (1 h each axis) Unit operating Kb Salt mist, cyclic (sodium chloride NaCl solution) IEC/EN/DIN IEC 60068-2-52 Concentration: Duration: Storage: Storage duration: Number of cycles: 5% (30°C) 2 h per cycle 40°C, 93% rel. humidity 22 h per cycle 3 Unit not operating Table 7: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar) Temperature 1 Standard -7 Option -9 Characteristics Conditions min max min max Unit TA Ambient temperature Operational 1 –25 71 –40 71 °C TC Case temperature –25 95 –40 95 TS Storage temperature –40 100 –55 100 Non operational See Thermal Considerations Table 8: MTBF and device hours MTBF MTBF acc. to MIL-HDBK-217F 1 Ground Benign Ground Fixed Ground Mobile TC = 40°C TC = 40°C TC = 70°C TC = 50°C 789'000 199'000 h 104'000 h 76'000 h Statistical values, based on an average of 4300 working hours per year and in general field use. REV. SEP 23, 2003 Page 9 of 13 Device Hours 1 5'100'000 h PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Mechanical Data European Projection Dimensions in mm. Tolerances ±0.3 mm unless otherwise specified. 20.5 8.75 18.7 6.3 Yellow LED output voltage indicator Potentiometer (option P) 09015 1.2 8.4 12.2 R 70.2 ±0.5 Vo+ i 47.5 ±0.2 65 Go– Ø4 Vi+ Gi– 2.7 ±0.2 50.2 ±0.2 09016 a Fig. 12 Case A01, weight 100 g Aluminium, black finish and self cooling 71.4 Fig. 13 Case A01 hole locations for circuit board layout (component side view of PCB): - - - = Space reserved for switching regulator a = 3.0 mm x 0.7 mm slot or Ø 3.0 mm, through plated for hand or machine soldering (fast on) a = Ø 1.3...1.5 mm with option Y pins 65 Distance between M 2.5 mounting screws 1.2 8.75 18.7 47.5 ±0.1 2.8 x 0.5 (1.0 x 0.5 option Y) 20.5 6.3 6.5 ±1 7 ±0.5 25.2 ±0.5 min. 5 Measuring point of case temperature 51.4 Safety and Installation Instructions Installation Instruction Installation of the switching regulators must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings and segregation requirements of the end-use application. Check for hazardous voltages before altering any connections. Connections can be made using fast-on or soldering technique. The input and the output circuit are not separated. i.e. the negative path is internally interconnected! REV. SEP 23, 2003 The units should be connected to a secondary circuit. Do not open the module. Ensure that a unit failure (e.g. by an internal short-circuit) does not result in a hazardous condition. See also: Safety of operator accessible output circuit. Cleaning Agents In order to avoid possible damage, any penetration of cleaning fluids is to be prevented, since the power supplies are not hermetically sealed. Page 10 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Protection Degree This test is performed as factory test in accordance with IEC/EN 60950 and UL 1950 and should not be repeated in the field. Power-One will not honour any guarantee claims resulting from electric strength field tests. The protection degree is IP 40, IP 20 with option P. Isolation Electric strength test voltage between input interconnected with output and case: 1500 V DC, 1 s. Standards and Approvals Safety of Operator Accessible Output Circuit All switching regulators are UL recognized according to UL 1950 and EN 60950 and UL recognized for Canada to CAN/CSA C22.2 No. 234-M90. If the output circuit of a switching regulator is operator-accessible, it shall be an SELV circuit according to IEC/EN 60950 related safety standards The units have been evaluated for: • Building in, • Functional insulation from input to output and input/output to case, • The use in an overvoltage category II environment, • The use in a pollution degree 2 environment. The following table shows some possible installation configurations, compliance with which causes the output circuit of the switching regulator to be an SELV circuit according to IEC/EN 60950 up to a nominal output voltage of 30 V. The switching regulators are subject to manufacturing surveillance in accordance with the above mentioned UL and CSA and with ISO 9001 standards. However, it is the sole responsibility of the installer or user to assure the compliance with the relevant and applicable safety regulations. More information is given in: Technical Information: Safety & EMC. Table 9: Safety concept leading to an SELV output circuit Conditions Front end Switching regulator Result Supply voltage Measures to achieve the specified safety status of the output circuit Safety status of the switching regulator output circuit Minimum required grade Maximum Minimum required safety of isolation, to be provided DC output status of the front end by the AC-DC front end, voltage output circuit including mains-supplied from the battery charger front end 1 Battery Double or Reinforced supply, considered as secondary circuit Mains -250 V AC Basic Double or reinforced ≤60 V SELV circuit ≥60 V Earthed hazardous voltage Input fuse 3 and secondary circuit 2 non accessible case 5 ≤60 V 1 2 3 4 5 SELV circuit Earthed SELV circuit Unearthed hazardous voltage secondary circuit 5 Input fuse 3 and unearthed, non accessible case 5 Hazardous voltage secondary circuit Input fuse 3 and earthed output Earthed SELV circuit 4 and non circuit accessible case 5 Earthed SELV circuit 4 None ELV circuit Input fuse 3 and earthed output circuit 4 and non accessible case 5 ≥60 V Hazardous voltage secondary circuit ≤60 V SELV circuit ≥60 V None None Unearthed SELV circuit SELV circuit 3 Double or reinforced insu- Input fuse and unearthed lated unearthed hazardous and non accessible case 5 voltage secondary circuit 5 Unearthed SELV circuit The front end output voltage should match the specified input voltage range of the switching regulator. The conductor to the Gi– terminal of the switching regulator has to be connected to earth by the installer according to the relevant safety standard, e.g. IEC/EN 60950. The installer shall provide an approved fuse (slow blow type with the lowest current rating suitable for the application, max. 12.5 A) in a non-earthed input conductor directly at the input of the switching regulator. If Vo+ is earthed, insert the fuse in the Gi- line. For UL’s purpose, the fuse needs to be UL-listed. If option C is fitted, a suitable fuse is already built-in in the Vi+ line. The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950. Has to be insulated from earth by double or reinforced insulation according to the relevant safety standard, based on the maximum output voltage from the front end. REV. SEP 23, 2003 Page 11 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) Description of Options -9 Extended Temperature Range P Potentiometer The operational ambient temperature range is extended to TA = –40...71°C. (TC = –40...95°C, TS = –55...100°C.) Y PCB Soldering Pins This option defines soldering pins of 1.0 × 0.5 × 6.5 mm, instead of the standard fast-on terminals of 2.8 × 0.5 × 6.5 mm. Regulators with this option can be mounted onto printed circuit boards, providing through-plated finished hole size of Ø 1.3...1.5 mm. Option P excludes R function. The output voltage Uo can be adjusted with a screwdriver in the range from 0.92...1.08 of the nominal output voltage Uo nom. However, the minimum differential voltage DUi o min between input and output voltages as specified in: Electrical Input Data should be maintained. Accessories A variety of electrical and mechanical accessories are available including: – Isolation pads for easy and safe PCB-mounting. – Filters and ring core chockes for ripple and interference reduction. – Adaptor kits for DIN-rail and chassis mounting. For detailed information see: Accessories on the PowerOne homepage. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. REV. SEP 23, 2003 Page 12 of 13 PSA Series Extended Data Sheet Positive Switching Regulator (Rugged) EC Declaration of Conformity We Power-One AG Ackerstrasse 56 CH-8610 Uster declare under our sole responsibility that all PSx Series switching regulators carrying the CE-mark are in conformity with the provisions of the Low Voltage Directive (LVD) 73/23/ EEC of the European Communities. Conformity with the directive is presumed by conformity wih the following harmonized standards: • EN 61204: 1995 (= IEC 61204: 1993, modified) Low-voltage power supply devices, d.c. output - Perfomance characteristics and safety requirements • EN 60950: 1992 + A1: 1993 + A2 (= IEC 950 second edition 1991 + A1: 1992 + A2: 1993) Safety of information technology equipment The installation instructions given in the corresponding data sheet describe correct installation leading to the presumption of conformity of the end product with the LVD. All PSx Series Switching Regulatiors are components, intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. They must not be operated as stand alone products. Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC Directive) needs not to be declared. Nevertheless, guidance is provided in most product application notes on how conformity of the end product with the indicated EMC standards under the responsibility of the installer can be achieved, from which conformity with the EMC directive can be presumed. Uster, 1 Sep. 2003 Power-One AG Rolf Baldauf Director Engineering REV. SEP 23, 2003 Page 13 of 13 Johann Milavec Director Products and IP