PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Input voltage up to 144 VDC Single output of 12 to 48 VDC No input to output isolation * High efficiency up to 97% * Extremely wide input voltage range * Low input to output differential voltage * Very good dynamic properties * Input undervoltage lock-out * Active current sharing for parallel operation 111 4.4" 3U 60 2.4" 12 TE * Output voltage adjustment, inhibit and sense lines * Fast dynamic response 168 6.6" * Continuous no-load and short-circuit proof * No derating Safety according to IEC/EN 60950, UL 1950 Summary The PSS/PSK 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 secondary switched and battery-driven mobile applications. The standard case design with heat sink allows operation at nominal load up to 71C without additional cooling, suitable for 19" rack or chassis mounting. 111 4.4" 3U 80 3.2" 16 TE Replacing the heat sink by an optional cooling plate B or B1, allows chassis or wall mounting on top of a metal surface, acting as heat sink. 168 6.6" Connector type: H15 (according to DIN 41612). Table of Contents Page Page Summary ......................................................................... 1 Model Selection and Key Data ........................................ 2 Part Number Description and Product Marking .............. 2 Functional Description .................................................... 3 Electrical Input Data ........................................................ 3 Electrical Output Data ...................................................... 4 Auxiliary Functions .......................................................... 7 Electromagnetic Compatibility (EMC) ............................. 9 Immunity to Environmental Conditions ......................... 10 Mechanical Data ........................................................... 11 Safety and Installation Instructions ................................ 13 Description of Options ................................................... 15 Accessories ................................................................... 17 EC Declaration of Conformity ........................................ 18 REV. FEB. 25 2004 Page 1 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Model Selection and Key Data Table 1: Type survey 1 2 3 Efficiency 2 Output voltage Vo nom [V] Output current Io nom [A] Input voltage range Vi [V] 1 Input voltage Vi nom [V] Type designation 12 12 9 12 18 - 144 18 - 144 60 60 90 90 91 91 PSS 129-7 PSK 1212-7 15 3 15 3 9 12 22 - 144 22 - 144 60 60 90 90 92 92 PSS 129-7 PSK 1212-7 24 24 9 12 31 - 144 31 - 144 60 60 93 93 94 94 PSS 249-7 PSK 2412-7 36 36 9 12 44 - 144 44 - 144 80 80 95 95 96 96 PSS 369-7 PSK 3612-7 48 48 9 12 58 - 144 58 - 144 80 80 96 96 97 97 PSS 489-7 PSK 4812-7 Options h min [%] h typ [%] B, B1 -9 E P C Surges up to 156 V for 2 s. See also: Electrical Input Data: DVio min. Efficiency at Vi nom and Io nom. Output set to 15 V at R control input Non standard input/output configurations or special custom adaptions are available on request. Part Number Description and Product Marking Type Key PSK 12 12 -7 E P C B Positive switching regulator in case S01, K01 .. PSS, PSK Nominal output voltage in volt .............................. 12, ...48 Nominal output current in ampere ............................ 9, 12 Operational ambient temperature range TA -25 to 71C ................................................ -7 -40 to 71C (option) .................................. -9 Options: 1 Inrush current limitation ............................... E Potentiometer 1 ............................................ P Thyristor crowbar ........................................ C Cooling plate large/small ..................... B, B1 Option P excludes R-features and vice versa. Example: PSS 129-7EPCB = A positive switching regulator with a 12 V, 9 A output, ambient temperature range of -25 to 71C, inrush current limitation, potentiometer, crowbar and large cooling plate B. Note: All units feature the following auxiliary functions which are not shown in the type designation: Input filter, inhibit, R control, sense lines, current sharing and test jacks. Specific type designation, input voltage range, nominal output voltage and current, protection degree, batch no., serial no. and data code including production site, modification status and date of production. Produkt Marking Basic type designation, applicable safety approvals and recognition marks, warnings, pin allocation, Power-One patents and company logo, identification of LED, test sockets and optional potentiometer. REV. FEB. 25 2004 Page 2 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Functional Description The switching regulators are designed using the buck converter topology. 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. During the off period, this energy forces the current to continue flowing through the output chocke to the load and back through the freewheeling diode. Regulation is accomplished by varying on/off duty cycle. 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. 03024 Vi+ 30 32 Vi 6 Io Vo+ 20 S+ Input Filter Ii Option E 4 22 CS Option C Control circuit Vo 14 i 16 R 18 S- 26 Gi- 28 8 Go- 10 24 Option P Fig. 1 Block diagram + - Electrical Input Data General Conditions: TA = 25C, unless TC is specified Table 2a: Input data PSS 129 PSK 1212 PSS 129 2 PSK 1212 2 PSS 249 PSK 2412 min typ max min typ max min typ max Input Characteristics Vi Operating input voltage 1 DVio min Min. diff. voltage Vi - Vo 1 2 Conditions Io = 0 - Io nom TC min - TC max 18 144 22 144 6 31 144 7 Unit VDC 7 Vi o Undervoltage lock-out Ii 0 No load input current Io = 0, Vi min - Vi max 50 50 50 mA Iinr p Peak value of inrush current Vi nom, with option E 4.5 4.5 4.5 A Vi RFI Input RFI level, EN 55011/22 Vi nom, Io nom 0.15 - 30 MHz B B B 12 Surges up to 156 V for 2 s. Output set to 15 V at R control input, see Auxiliary Functions. REV. FEB. 25 2004 Page 3 of 18 12 24 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Table 2b: Input data Input Characteristics Conditions Vi Io = 0 - Io nom TC min - TC max Operating input voltage DVio min Min. diff. voltage Vi - Vo 1 2 Vi o Undervoltage lock-out Ii 0 No load input current I inr p Peak value of inrush current Vi nom, with option E Vi RFI Input RFI level, EN 55011/22 Vi nom, Io nom 0.15 - 30 MHz PSS 369 PSK 3612 PSS 489 PSK 4812 min typ max min typ max 44 144 58 144 8 V 10 36 Io = 0, Vi min - Vi max Unit 48 50 50 mA 6 6 A B B Surges up to 156 V for 2 s (complying to LES-DB standard for UN = 110 V). Output set to 15 V at R control input, see Auxiliary Functions. Input Filter and Fuse Inrush Current An input filter and a fuse are incorporated in all modules as standard. The filter reduces emitted electrical noise and prevents oscillations caused by the negative input impedance characteristic of a switched mode regulator. The input fuse protects against severe defects. Depending on the input source and the input impedance, the inrush current into the regulator may peak several thousand amperes during the switch-on sequence. It also determine the rating of input devices such as switches, relays, fuses etc. To protect these input devices by limiting the peak of the inrush current we recommend the use of the active inrush current limitation circuit, option E. The maximum permissible additionally superimposed ripple vi of the input voltage (rectifier mode) at a specified input frequency fi has the following values: vi max = 10 Vpp at 100 Hz, or Vpp = 1000 Hz/fi * 1 V Electrical Output Data General Conditions: - TA = 25C, unless TC is specified - With R control output voltage Vo = Vo nom at Io nom - Sense lines connected at female connector Table 3a: Output data Output Characteristics Vo Output voltage Io Output current IoL Output current limitation response vo Output voltage noise 3 Switching freq. Total min Vi nom, Io nom Vi min - Vi max TC min - TC max typ max min 11.93 12.07 0 9.0 9.0 11.25 typ PSS 249 max min 14.91 15.09 0 9.0 9.0 11.25 typ max Unit 23.86 24.14 V 0 9.0 A 9.0 11.25 Vi nom, Io nom IEC/EN 61204 2 BW = 20 MHz 25 50 30 60 35 60 29 54 34 64 39 65 Static line regulation Vi min - Vi max, Io nom 40 70 50 80 80 170 DV o l Static load regulation Vi nom, Io = 0 - Io nom 30 50 40 60 50 120 vo d Dynamic load regulation Vi nom Io nom 1/3 Io nom IEC/EN 61204 2 140 140 180 60 60 60 aUo 2 1 Conditions DV o U td 1 PSS 129 3 PSS 129 Voltage deviat. Recovery time Temperature coefficient DVo/DTC (TC min - TC max) Vi min - Vi max Io = 0 - Io nom See also: Thermal Consideration. See: Technical Information: Measuring and Testing. Output set to 15 V at R control input, see: Auxiliary Functions. REV. FEB. 25 2004 Page 4 of 18 mVpp mV s 3 4 5 mV/K 0.02 0.02 0.02 %/K PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Table 3b: Output data Output PSS 369 Characteristics Conditions min Vo Vi nom, Io nom 35.78 Output voltage 1 Io Output current IoL Output current limitation response vo Output voltage noise Vi min - Vi max TC min - TC max Static line regulation Vi min - Vi max, Io nom DV o l Static load regulation Vi nom, Io = 0 - Io nom vo d Dynamic load regulation td aUo min 47.71 typ max Unit 48.29 V A 0 9.0 0 9.0 11.25 9.0 11.25 Voltage deviat. Vi nom I 1/3 Io nom Recovery time o nom IEC/EN 61204 2 Temperature coefficient DVo/DTC (TC min - TC max) max 35.22 9.0 Switching freq. Vi nom, Io nom IEC/EN 61204 2 Total BW = 20 MHz DV o U typ PSS 489 35 60 35 60 39 64 39 64 120 250 150 350 60 120 70 150 200 200 70 70 Vi min - Vi max Io = 0 - Io nom mVpp mV s 8 10 mV/K 0.02 0.02 %/K Table 3c: Output data Output Characteristics Conditions min Vi nom, Io nom 11.93 Vi min - Vi max TC min - TC max 0 12.0 0 12.0 12.0 15.0 12.0 15.0 3 1 Io Output current IoL Output current limitation response vo Output voltage noise Switching freq. Total max min 12.07 14.91 typ PSK 2412 max min 15.09 23.86 typ max Unit 24.14 V 0 12.0 A 12.0 15.0 Vi nom, Io nom IEC/EN 61204 2 BW = 20 MHz 25 50 30 60 35 60 29 54 34 64 39 65 40 70 50 80 80 170 50 40 60 50 120 DVo U Static line regulation Vi min - Vi max, Io nom DVo l Static load regulation Vi nom, Io = 0 - Io nom 30 vo d Dynamic load regulation Vi nom Io nom 1/3 Io nom IEC/EN 61204 2 140 140 180 60 60 60 aUo 2 Output voltage typ PSK 1212 3 Vo td 1 PSK 1212 Voltage deviat. Recovery time Temperature coefficient DVo/DTC (TC min - TC max) Vi min - Vi max Io = 0 - Io nom See also: Thermal Consideration. See: Technical Information: Measuring and Testing. Output set to 15 V at R control input, see: Auxiliary Functions. REV. FEB. 25 2004 Page 5 of 18 mVpp mV s 3 4 5 mV/K 0.02 0.02 0.02 %/K PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Table 3d: OVtpVt data Output PSK 3612 Characteristics Conditions min max min max Unit Vo Vi nom, Io nom 35.78 36.22 47.71 48.29 V Vi min - Vi max TC min - TC max 0 12.0 0 12.0 A 12.0 15.0 12.0 15.0 Output voltage 1 Io Output current IoL Output current limitation response vo Output voltage noise Switching freq. Vi nom, Io nom IEC/EN 61204 2 Total BW = 20 MHz DVo U Static line regulation Vi min - Vi max, Io nom DVo l Static load regulation Vi nom, Io = 0 - Io nom vo d Dynamic load regulation td aUo Voltage deviat. Vi nom I 1/3 Io nom Recovery time o nom IEC/EN 61204 2 Temperature coefficient DVo/DTC (TC min - TC max) typ PSK 4812 typ 35 60 35 60 39 64 39 64 120 250 150 350 60 120 70 150 200 200 70 70 Vi min - Vi max Io = 0 - Io nom mVpp mV s 8 10 mV/K 0.02 0.02 %/K 1 See also: Thermal Consideration. See: Technical Information: MeasVring and Testing. 3 Output set to 15 V at R control input, see: Auxiliary Functions. 2 Vo 05010 DVo I Vod td DVo I Vod td t I o/I o nom 1 0 10 s 10 s t Thermal Considerations When a switching regulator is located in free, quasi-stationary air (convection cooling) at a temperature TA = 71C and is operated at its nominal output current Io nom, the case temperature TC will be about 95C after the warm-up phase, measured at the: MeasVring point of case temperatVre TC (see: Mechanical Data). Under practical operating conditions, the ambient temperature TA may exceed 71C, provided additional measures (heat sink, fan, etc.) are taken to ensure that the case temperature TC does not exceed its maximum value of 95C. Example: Sufficient forced cooling allows TA max = 85C. A simple check of the case temperature TC (TC 95C) at full load ensures correct operation of the system. Fig. 2 Dynamic load regulation. Overtemperature Protection 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 (failsafe). Io /Io nom Forced cooling 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 05031 The unit is self-protecting by an internal temperature monitor, which inhibits the output above TC max. The output is automatically enabled again after temperature has dropped below TC max. Convection cooling TC max TA min 50 60 70 80 90 Fig. 3 Output current derating versus temperature. REV. FEB. 25 2004 Page 6 of 18 100 TA [C] PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Auxiliary Functions Table 4: MaximVm allowed voltage compensation S Sense Lines Nominal output Total voltage difference Voltage difference voltage between both sense lines between and their respective output Go- and S- Note: Sense lines should always be connected! It is recommended to connect the sense lines directly at the female connector. See also: Technical Information. 12 - 48 V This feature enables compensation of voltage drop across the connector contacts and the load lines. In case the sense lines are connected at the load rather than directly at the connector, the user must ensure that Vo max (between Vo+ and Go-) is not exceeded. <0.25 V 06046 Vi+ Vo+ i S+ Load R Applying generously dimensioned cross-section load leads avoids troublesome voltage drop. To minimize noise pick-up wire sense lines in parallel or twisted. To ensure correct operation, both sense lines must be connected to their respective power output potential. The voltage difference between any sense line and its respective power output pin (as measured on the connector) should not exceed the values given in the following table. <1.0 V CS S- Gi- Go- Fig. 5 Sense lines connection 06047 S+ Vi+ i Inhibit (Remote On / Off) Outputs of equal nominal voltages can be parallel-connected. Use the current sharing feature (CS) for even distribution of the output current. See also: Auxiliary Functions. 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! Short Circuit Behaviour Io nom 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. 1.2 Iinh [mA] 06034 5 4 3 2 1 Vo on 0 -50 -40 -30 -20 -10 Vo off 0 10 20 30 40 Io L 06001 Vo /Vo nom 1 tr tf 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Io /Io nom Fig. 8 Output response as a function of inhibit signal Fig. 4 Overload, short-circuit behaviour Vo versus Io. REV. FEB. 25 2004 t Inhibit 1 0.4 0.2 50 Fig. 7 Typical inhibit current Iinh versus inhibit voltage Vinh 0.1 0 0.6 0 Fig. 6 Definition of Iinh and Vinh 05038 1.0 0.8 S- Gi- Vinh = 2.4 V Parallel and Series Connection Vinh Vinh = 0.8 V 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. The inhibit characteristics are referenced to the S- remote sense terminal. Vo /Vo nom I inh i Note: With open i input, output is enabled (Vo = on) Page 7 of 18 t Vinh [V] PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Table 5: Inhibit characteristics Characteristics Vinh Inhibit input voltage to keep regulator output voltage - Vo = on Vo = off Conditions min typ max Unit Vi min - Vi max TC min - TC max -50 +0.8 VDC +2.4 +50 tr Switch-on time after inhibit command Switch-off time after inhibit command Vi = Vi nom RL = Vo nom /Io nom 150 tf Ii inh Input current when inhibited Vi = Vi nom 25 R Control for Output Voltage Adjustment The output voltage Vo can either be adjusted with an external reference voltage (Vext) or with an external resistor (R1 or R2). The adjustment range is 0 - Vo max. The minimum differential voltage DVio min between input and output (see: Electrical Input Data) should be maintained. Undervoltage lock-out = minimum input voltage. R Vext S+ Uref 4000 R2 R 06049 + - R1 06048 S- Vref 4000 + mA Caution: To prevent damage Vext should not exceed 20 V, nor be negative, and R2 should never be less than 47 k. Note: With open R input, Vo Vo nom. S+ ms 30 Fig. 10 Voltage adjustment with external resistor R1 or R2 + - b) Vo = 0 - 100% Vo nom, using R1 between R and S-: 4000 * Vo R1 ----------- Vo nom - Vo S- Fig. 9 Voltage adjustment with Vext between R and S- Vo nom * R1 Vo ----------- R1 + 4000 c) Vo = Vo nom - Vo max, using R2 between R and S+: 4000 * Vo * (Vo nom - 2.5 V) R2 ------------------------ 2.5 V * (Vo - Vo nom) a) Vo = 0 - Vo max, using Vext between R and S-: Vo Vext Vext 2.5 V * ----- Vo Vo nom * ----- Vo nom 2.5 V Vo nom * 2.5 V * R2 Vo -------------------------------- 2.5 V * (R2 + 4000 ) - Vo nom * 4000 Table 6: Maximum adjustable output voltage Characteristics Vo max Maximum adjustable output at R control input CS Conditions Vi nom, Io nom PSS 129 PSK 1212 PSS 249 PSK 2412 PSS 369 PSK 3612 PSS 489 PSK 4812 min typ max min typ max min typ max min typ max 16.0 26.0 42.5 52.8 V Test Sockets Current Sharing For parallel operation of several modules, interconnecting all CS pins ensures that the output currents are evenly distributed. This feature improves transient load performance and increases system reliability. All paralleled units should be supplied by equal input voltage (Vi) and interconnecting leads should have equal length and cross section to ensure equal voltage drop. REV. FEB. 25 2004 Unit Test sockets (pin = 2 mm) for measuring the output voltage Vo internally at the cxonnector terminals, are located at the front side of the module. The test sockets are protected by a series resistor. LED Output Voltage Indicator A green output indicator LED shines when the output voltage is present. Page 8 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Electromagnetic Compatibility (EMC) Electromagnetic Immunity General condition: Case not earthed. Table 7: Immunity type tests Standard 1 MHz burst disturbance IEC 60255-22-1 Voltage surge IEC 60571-1 Electrostatic discharge 3 4 Class Level Coupling mode 2 Value applied Waveform Source Imped. Test procedure III i/o, i/c, o/c 2500 Vp 200 +i/-i, +o/-o 1000 Vp 400 damped 1 MHz waves/s 2 s per coupling mode i/c, +i/-i 800 Vp 100 s 100 1500 Vp 50 s 3000 Vp 5 s 4000 Vp 1 s 7000 Vp 100 ns IEC/EN 61000-4-2 4 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 3 i/c, +i/-i Electrical fast transient/burst IEC/EN 61000-4-4 Surge IEC/EN 61000-4-5 3 IEC/EN 61000-4-6 3 Conducted disturbances 1 1 Phenomenon 4 yes A yes B 10 positive and 10 negative discharges yes A 80 - 1000 MHz yes A 60 s positive 60 s negative bursts per coupling mode yes 5 pos. and 5 neg. surges per coupling mode yes A 2 150 0.15 - 80 MHz yes A 1 pos. and 1 neg. voltage surge per coupling mode 330 2000 Vp bursts of 5/50 ns 5 kHz rep. rate transients with 15 ms burst duration and a 300 ms period 50 12 4000 Vp i/c 2000 Vp +i/-i 1000 Vp i, o, signal wires 10 VAC (140 dBV) 1.2/50 s AM 80% 1 kHz In Peroper. form. 3 A B4 For related and previous standards see: Technical Information: EMC. 2 i = input, o = output, c = case. A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible. With option C, manual reset might be necessary. Electromagnetic Emission For emission levels refer to: Electrical Input Data. [dBV] 90 07022 80 EN 55022 A 70 EN 55022 B 60 50 40 30 20 10 REV. FEB. 25 2004 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 Vi nom and Io nom. Page 9 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Immunity to Environmental Conditions Table 8: Mechanical stress Test Method Ca Standard Test Conditions Status 40 2 C Damp heat steady state IEC/DIN IEC 60068-2-3 MIL-STD-810D section 507.2 Temperature: Relative humidity: Duration: 93 +2/-3 % 56 days Unit not operating 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 Acceleration amplitude: MIL-STD-810D section 514.3 Frequency (1 Oct/min): Test duration: 0.35 mm (10 - 60 Hz) Unit 5 gn = 49 m/s2 (60 - 2000 Hz) operating 10 - 2000 Hz 7.5 h (2.5 h each axis) Fda Random vibration wide band Reproducibility high IEC 60068-2-35 DIN 40046 part 23 Acceleration spectral density: Frequency band: Acceleration magnitude: Test duration: 0.05 g 2/Hz 20 - 500 Hz 4.9 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% (30C) 2 h per cycle 40C, 93% rel. humidity 22 h per cycle 3 Unit not operating Table 9: Temperature specifications, valid for an air pressure of 800 - 1200 hPa (800 - 1200 mbar) Temperature Characteristics 1 2 TA Ambient temperature 1 TC Case temperature TS Storage temperature 1 Standard -7 Option -9 Conditions min max min max Unit Operational 2 -25 71 -40 71 C -25 95 -40 95 -40 100 -55 100 Non operational MIL-STD-810D section 501.2 and 502.2. See: Thermal Considerations and Overtemperature Protection. Table 10: MTBF and device hoVrs MTBF MTBF acc. to MIL-HDBK-217F 1 Ground Benign Ground Fixed Ground Mobile TC = 40C TC = 40C TC = 70C TC = 50C 335'000 h 138'000 h 35'000 h 33'000 h Statistical values, based on an average of 4300 working hours per year and in general field use REV. FEB. 25 2004 Page 10 of 18 Device Hours 1 2'100'000 h PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Mechanical Data European Projection The converters are designed to be inserted into a rack according to IEC 60297-3. 7 TE 171.9 76 3.27 10.34 8 09028 50 5 TE 30.3 7.4 20.34 4 x M4 50.5 13.3 7.8 30.5 17.8 5 Measuring point of case temperature TC 103 51.5 111 0.5 LED OK green Potentiometer (option P) Test sockets 27.38 Front plate Main face 60 d 25.9 11.8 168.5 0.5 Fig. 12 Case S01, weight 1.3 kg Aluminium, fully enclosed,black finish and self cooling. Note: - d 15 mm, recommended minimum distance to next part to ensure proper air circulation at full output power. - free air locations: the module should be mounted with fins in vertical position to achieve a maximum air flow through heat sink. REV. FEB. 25 2004 Page 11 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Mechanical Data European Projection The converters are designed to be inserted into a rack according to IEC 60297-3. 4.5 9 TE 3.27 09029 159 7 TE 30.3 7.4 20.34 10.34 50 13.3 7.8 27.38 171.9 Main face 80 Back plate d 168.5 25.9 11.8 Front plate 30.5 17.8 103 6.5 Measuring point of case temperature TC 51.5 89 111 0.5 LED OK green Potentiometer (option P) Test sockets Fig. 13 Case K01, weight 1.6 kg Aluminium, fully enclosed, black finish and self cooling. Note: - d 15 mm, recommended minimum distance to next part to ensure proper air circulation at full output power. - free air locations: the module should be mounted with fins in vertical position to achieve a maximum air flow through heat sink. REV. FEB. 25 2004 Page 12 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Safety and Installation Instructions Connector Pin Allocation Table 11: H15 connector pin allocation The connector pin allocation table defines the electrical potentials and the physical pin position on the connector. Pin 24 (protective earth) is a leading pin, which provides electrical contact first. The modules should only be wired via the female connector H15 (according to DIN 41612) to ensure requested safety! 32 10008 4 Fixtures for connector retension clips V (see Accessories) Fig. 14 View of male H15 connector Electrical Determination Type H15 Pin No. Ident. Output voltage (positive) Output voltage (positive) Output voltage (negative) Output voltage (negative) 4 6 8 10 Vo+ Vo+ Go- Go- Crowbar trigger input (option C) Inhibit input R-input (output voltage programming) Sense line (negative) Sense line (positive) Current sharing control input 12 14 16 18 20 22 n.c. i R S- S+ CS Protective ground (leading pin) Input voltage (negative) Input voltage (negative) Input voltage (positive) Input voltage (positive) 24 26 28 30 32 Gi- Gi- Vi+ Vi+ Installation Instruction Standards and Approvals 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. All switching regulators are UL recognized according to UL 60950, CAN/CSA C22.2 No. 234-M90 and IEC/EN 60950. Check for hazardous voltages before altering any connections. The input and the output circuit are not separated. i.e. the negative path is internally interconnected! The units should be connected to a secondary circuit. Do not open any 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. Note: Additional information on input circuitry, grounding and parallel operation of units is given in: Technical Information: Application Notes. Protection Degree The protection degree is IP 30 (equipped with option P: IP 20). It applies only if the module is plugged-in or the female connector is properly attached to the module. Isolation Electric strength test voltage between input interconnected with output and case: 1500 VDC, 1 s. This test is performed in the factory as routine test in accordance with IEC/EN 60950 and UL 60950 and should not be repeated in the field. Power-One will not honour any guarantee claims resulting from electric strength field tests. REV. FEB. 25 2004 The units have been evaluated for: * Building in * Operational insulation from input to output and input/output to case * The use in a pollution degree 2 environment * Connecting the input to a secondary circuit which is subject to a maximum transient rating of 1500 V The switching regulators are subject to manufacturing surveillance in accordance with the above mentioned UL, CSA and ISO 9001 standards. Safety of Operator Accessible Output Circuit 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 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 configured nominal output voltage of 30 V, or 48 V if option C is fitted. However, it is the sole responsibility of the installer or user to assure the compliance with the relevant and applicable safety regulations. Page 13 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Table 12: Insulation concept leading to an SELV output circuit Conditions Front end Supply voltage Minimum required grade of isolation, to be provided by the AC-DC front end, including mains supplied battery charger Battery Double or Reinforced supply, considered as secondary circuit Mains 250 VAC Basic Double or reinforced 1 2 3 4 5 Switching regulator Result Maximum DC output voltage from the front end 1 Minimum required safety status of the front end output circuit Measures to achieve the specified safety status of the output circuit Safety status of the switching regulator output circuit 60 V SELV circuit None SELV circuit 60 V 60 V 3 Earthed hazardous voltage Input fuse and earthed secondary circuit 2 or non accessible case 5 4 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 earthed 4 or non circuit accessible case 5 Earthed SELV circuit 4 None ELV circuit Input fuse 3 and earthed output circuit 4 and earthed 4 or non user accessible case 5 >60 V Hazardous voltage secondary circuit 60 V SELV circuit >60 V Double or reinforced insu- Input fuse 3 and unearthed lated unearthed hazardous and non accessible case 5 voltage secondary circuit 5 None Unearthed SELV circuit SELV circuit Unearthed SELV circuit The front end output voltage should match the specified input voltage range of the switching regulator. 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. 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. FEB. 25 2004 Page 14 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Description of Options -9 11029 I [A] Startup Extended Temperature Range Inrush limit This option defines an extended operational ambient temperature range of TA = -40 to 71C. Soft start Vi (Ii = 15 ---- ) Normal operation (15 resistor bypassed) P Potentiometer Note: Option P is not recommended, if several modules are operated in parallel connection. Option P excludes R function. The output voltage Vo can be adjusted with a screwdriver in the range 90 - 110% Vo nom. However, the minimum differential voltage Vi o min between input and output as specified in Electrical Input Data should be maintained. E Inrush Current Limitation Note: This option requires increased minimum input voltage of up to 1 V, dependent upon input range. In battery driven applications the use of option E is essential due to very low battery impedances. Inrush current can reach several thousand amperes depending on the source and input line conditions. Immediately after application of the input supply, the inrush current is limited by parasitic components of the voltage source and power supply input only. The power supply input presents a very low impedance to such currents and when driven from a low impedance source, for example a battery, the inrush current can peak at several orders of magnitude above the continuous DC input current. Option E dramatically reduces this peak current and is recommended for any application to protect series elements such as switches or circuit brakers and rectifiers. After startup, the resistor is bypassed for normal operation. t [ms] 0 40 (typical) 100 (typical) Fig. 15 Option E: Inrush current versus time C Thyristor Crowbar Note: The thyristor can be deactivated by removal of the input voltage only. The inhibit signal cannot deactivate the thyristor. Option C protects the load against power supply malfunction. It is not designed to sink external currents. As a central overvoltage protection device, the crowbar is usually connected to the external load via distributed inductance of the lines. For this reason, the overvoltage at the load can temporarily exceed the trigger voltage Vo c. Depending on the application, further decentralized overvoltage protection elements may have to be used additionally. A fixed-value monitoring circuit checks the output voltage Vo and when the trigger voltage Vo c is reached, the thyristor crowbar triggers and disables the output. An external connection C (crowbar trigger control) is provided. When crowbar option is used with two or more power supplies in parallel connection, all crowbar trigger terminals (C) should be interconnected. This ensures all crowbar circuits triggering simultaneously in order to disable all outputs at once. The crowbar trigger voltage is maintained between Vo+ and Go-. To prevent false triggering, the user should ensure that Vo (between Vo+ and Go-) deos not exceed Vo c. Table 13: Crowbar trigger levels Characteristics Condition PSS 129 PSK 1212 min 1 Vo c Trigger voltage ts Delay time TC min - TC max Vi min - Vi max Io = 0 - Io nom PSS 249 PSK 2412 typ max 17.8 18.9 14.3 15.2 1 1.5 min typ 28.89 30.6 1.5 Crowbar trigger voltage with option P REV. FEB. 25 2004 max Page 15 of 18 PSS 369 PSK 3612 min typ max PSS 489 PSK 4812 min typ max Unit 47.0 50.0 43.0 45.5 1 63.0 67.0 VDC 1.5 1.5 s PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Cooling Plate Where a cooling surface is available, a cooling plate (option B, or option B1) can be used instead of the standard heatsink. The mounting system must ensure sufficient cooling capacity to guarantee that the maximum 47.2 38.5 6.5 6.5 5 case temperature TC max is not exceeded. The required cooling capacity can be calculated by the following formula: 100% - PLoss = -------- * (Vo * Io) 11027 11.2 B, B1 13 140 127 11.8 133.4 0.2 168 17.3 Fig. 16 Option B, large cooling plate Weight: 1.2 kg 5 47.2 38.5 5 158 11028 5 11.8 30 101 111 M4 168 0.5 171.9 Fig. 17 Option B1, small cooling plate Weight: 1.2 kg REV. FEB. 25 2004 Page 16 of 18 PSS, PSK Extended Data Sheet Positive Switching Regulator (Rugged) Accessories A variety of electrical and mechanical accessories are available including: - Front panels for 19" rack mounting, Schroff and Intermas systems, 12 and 16 TE. - Mating H15 and H15 S4 connectors with screw, solder fast-on or press-fit terminals. - Connector retention facilities (V-clips). - DIN-rail mounting adaptor. For more detailed information please refer to: Accessory Products. 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. FEB. 25 2004 Page 17 of 18 PSS, PSK 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 Regulators 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. FEB. 25 2004 Page 18 of 18 Johann Milavec Director Projects and IP