Power Management

PSC129-2iR

Bel Fuse Inc.

Positive Switching Regulators

Manufacturer: Bel Fuse Inc.

Document: 19 Pages / 2Mb

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PSC126-7LIRPCDG BEL | Alldatasheet

Document overview

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PDF pages: 19

Technical content

Features

R oH S lead-free-solder and lead-solder-exempted products are available
5 year warranty for RoHS compliant products with an extended temperature range
Compliant to EN 45545 for (version V104 or later)
Input voltage up to 144 VDC
Single output of 3.3 to 48 VDC
N o 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 lockout
Output voltage adjustment and inhibit function
Continuously no-load and short-circuit proof
All boards are coated with a protective lacquer

Description

The PSC and PSL Series positive switching regulators are designed as power supplies for electronic systems, where no input-to-output isolation is required. Their major advantages include a high level of efficiency, high reliability, low output ripple, and excellent dynamic response. Models with input voltages up to 144 V are specially designed for secondary switched and battery-driven mobile applications. The converters are suitable for railway applications according to EN 50155 and EN 50121. Two type of housings are available allowing operation up to 71 °C. The PSC Series is designed for wall or chassis mounting with faston connections, whereas the PSL Series is designed for insertion into a 19" DIN-rack and exhibits a H11 connector. Various options are available to adapt the converters to different applications. Table of Contents Page Page C opyright © 2018, Bel Power Solutions Inc. All rights reserved. Safety-approved to the latest edition of IEC/EN 60950-1 and UL/CSA 60950-1

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 2 of 19 Table 2: PSL Series Output Output Operating input Nom. input Efficiency 2 Type Options voltage current voltage range voltage designation Vo nom [V] Io nom [A] Vi [V] Vi nom [V] η ηη ηη min [%] η ηη ηη typ [%] 5.1 10 8 – 80 40 77.5 79 PSL5A10-9RG -7, L, i, C, non-G 5.1 12 7 – 40 20 83.5 85.5 PSL5A12-9RG -7, L, C, non-G 12 6 18 – 144 1 60 88 89 PSL126-9RG -7, L, C, non-G 12 8 15 – 80 40 89 90 PSL128-9RG L, C 15 6 22 – 144 1 60 89 91 PSL156-9RG L, C 15 8 19 – 80 40 90 92.5 PSL158-9RG -7, L, i, C, non-G 24 6 31 – 144 1 60 93 94 PSL246-9RG -7, L, C, non-G 24 8 29 – 80 40 93 95 PSL248-9RG -7, L, C, K, non-G 36 6 44 – 144 1 80 95 96 PSL366-9RG -7, L, C, non-G 36 8 42 – 80 60 95 96.5 PSL368-9RG -7, L, C, non-G 48 6 58 –144 1 80 96 97 PSL486-9RG -7, L, non-G

1 Surges up to 156 V for 2 s

2 Efficiency at Vi nom and Io nom. Model Selection Table 1: PSC Series Output Output Operating input Nom. input Efficiency 2 Type Options voltage current voltage range voltage designation Vo nom [V] Io nom [A] Vi [V] Vi nom [V] η ηη ηη min [%] η ηη ηη typ [%] 5.1 10 8 – 80 40 77.5 79 PSC5A10-9iRG -7, L, C, D, non-G 5.1 11 8 – 40 20 78 79 PSC5A11-2 3 -- 5.1 12 7 – 40 20 83.5 85.5 PSC5A12-9iRG -7, L, P, C, D, non-G 12 6 18 – 144 1 60 88 89 PSC126-9iRG -7, L, C, D, non-G 12 8 15 – 80 40 91 93 PSC128-9iRG -7, L, P, C, D, non-G 12 9 15 – 40 30 89 90 PSC129-2iR 4 -- 15 6 22 – 144 1 60 89 91 PSC156-9iRG L, C, D 15 8 19 – 80 40 90 92.5 PSC158-9iRG -7, L, P, C, D, non-G 15 9 19 – 40 30 91 93.5 PSC159-2iR 5 -- 24 6 31 – 144 1 60 93 94 PSC246-9iRG -7, L, P, C, D, non-G 24 8 29 – 80 40 93 95 PSC248-9iRG -7, L, P, C, D, non-G 24 9 29 – 60 40 94 96 PSC249-2iR 6 -- 36 6 44 – 144 1 80 95 96 PSC366-9iRG -7, L, P, C, D, non-G 36 8 42 – 80 60 95 96.5 PSC368-9iRG -7, L, P, C, D, non-G 48 6 58 –144 1 80 96 97 PSC486-9iRG -7, L, P, C, D, non-G

1 Surges up to 156 V for 2 s; see Electrical Input Data

2 Efficiency at Vi nom and Io nom. 3 Obsolete. Use PSCA12-9iRG ! 4 Obsolete. Use PSC128-9LiRG ! 5 Obsolete. Use PSC158-9LiRG ! 6 Obsolete. Use PSC248-9LiRG ! NFND: Not for new designs Preferred for new designs

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 3 of 19 Part Number Description PSC Series Operational ambient temperature range T A Control input for output voltage adjustment 1 Feature R excludes option P and vice versa. Example: PSC126-7LiPCG designates a positive switching regulator with a 12 V, 6 A output, ambient temperature range of –25 to 71 °C, input filter, inhibit input, output adjust potentiometer, thyristor crowbar, RoHS-compliant PSL Series Operational ambient temperature range T A Inhibit input 1 Feature R excludes option i and vice versa. Example: PSL126-9LRCG designates a positive switching regulator with a 12 V, 6 A output, ambient temperature range of –40 to 71 °C, input filter, output voltage adjust, and thyristor crowbar, RoHS-compliant. PSC 12 6 -7 L i R P C D G PSL 12 6 -7 L R C K G NFND: Not for new designs. Preferred for new designs

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 4 of 19 Produkt Marking Type designation, applicable safety approval marks, warnings, pin allocation, Power-One patent nos., and company logo. Identification of LED and optional potentiometers. Label with input voltage range, nominal output voltage and current, protection degree, batch no., serial no., and data code including production site, version (modification status), and date of production. Customer-Specific Models Decimal places: PSC 12 Z 3 A -9i RG

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 5 of 19 Fig. 1 Block diagram PSC 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, to the load, and back through the freewheeling diode. Regulation is ac- complished by varying the duty cycle (on to off ratio) of the power switch.The regulator is equipped with a undervoltage lockout, but no overvoltage shutdown. 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 optimize customer’s needs, additional options and accessories are available. Fig. 2 Block diagram PSL Control circuit Option P Go– Vo+ Gi– Vi+ Input Filter Option L G R i D Io Vo I i Vi Option C Fuse (option C) 03018b Option D Vt Vo Ci Control circuit Go– Vo+ Gi– Vi+ Input Filter Option L R (or i) (D) Io Vo I i Vi Option C Fuse (Option 03021b Ci

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 6 of 19 Electrical Input Data General Conditions: TA = 25 °C, unless TC is specified Table 3a: Input data Input PSC5A11-2 PSC129-2 Unit Characteristics Conditions min typ max min typ max Vi Operating input voltage Io = 0 – Io nom 84 0 1 5 4 0 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 2.9 3 Vi UVL Undervoltage lockout 7.3 7.3 Ii 0 No load input current Io = 0, Vi min – Vi max 50 50 mA Iinr p Peak value of inrush currentVi nom 150 150 A tinr r Rise time of inrush currentVi nom 55 µ s Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom, A A Class Table 3b: Input data Input PSC159-2 PSC249-2 Unit Characteristics Conditions min typ max min typ max Vi Operating input voltage Io = 0 – Io nom 19 40 29 60 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 45 Vi UVL Undervoltage lockout 7.3 12 Ii 0 No load input current Io = 0, Vi min – Vi max 50 50 mA Iinr p Peak value of inrush currentVi nom 250 250 A tinr r Rise time of inrush currentVi nom 55 µ s Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom A A Class Table 3c: Input data Input PSC5A12 PSC5A10 PSC128 Unit PSL5A12 PSL5A10 PSL128 Characteristics Conditions min typ max min typ max min typ max Vi Operating input voltage Io = 0 – Io nom 7 40 8 80 15 80 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 1.9 2.9 3 Vi UVL Undervoltage lockout 6.3 7.3 7.3 Ii 0 No load input current Io = 0, Vi min – Vi max 45 40 35 mA Iinr p Peak value of inrush currentVi nom without L 150 250 250 A wit h opt. L 250 350 350 tinr r Rise time of inrush current without L 5 5 5 µs with opt. L 25 25 25 Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom B 1 B 1 B 1 Class 1 With option L and an additional external input cap C ext = 120 µF/100 V, e.g., Nichicon or similar

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 7 of 19 Table 3d: Input data. General Conditions as per table 3a Input PSC158 PSC248 PSC368 Unit PSL158 PSL248 PSL368 Characteristics Conditions min typ max min typ max min typ max Vi Operating input voltage Io = 0 – Io nom 19 80 29 80 42 80 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 45 6 Vi UVL Undervoltage lockout 7.3 12 19 Ii 0 No load input current Io = 0, Vi min – Vi max 35 35 40 mA Iinr p Peak value of inrush currentVi nom without L 250 250 250 A with opt. L 350 350 350 tinr r Rise time of inrush current without L 5 5 5 µs with opt. L 25 25 25 Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom B 1 B 1 B 1 Class Table 3e: Input data Input PSC126 PSC156 PSA246 Unit PSL126 PSL156 PSC246 Characteristics Conditions min typ max min typ max min typ max Vi Operating input voltage Io = 0 – Io nom 18 144 2 22 144 2 31 144 2 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 67 7 Vi UVL Undervoltage lockout 12 15 19 Ii 0 No load input current Io = 0, Vi min – Vi max 35 35 35 mA Iinr p Peak value of inrush currentVi nom without L 250 250 250 A with opt. L 350 350 350 tinr r Rise time of inrush current without L 5 5 5 µs with opt. L 25 25 25 Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom B 1 B 1 B 1 Class Table 3f: Input data Input PSC366 PSC486 Unit PSL366 PSL486 Characteristics Conditions min typ max min typ max Vi Operating input voltage 1 Io = 0 – Io nom 44 144 2 58 144 2 V ∆Vio min Min. diff. voltage Vi – Vo TC min – TC max 81 0 Vi UVL Undervoltage lockout 29 40 Ii 0 No load input current Io = 0, Vi min – Vi max 40 45 mA Iinr p Peak value of inrush currentVi nom without L 250 250 A with opt. L 350 350 tinr r Rise time of inrush current without L 5 5 µs with opt. L 25 25 Vi RFI EN 55011, 0.15 – 30 MHz Vi nom, Io nom B 1 B 1 Class 1 With option L and an additional external input cap C ext = 120 µF/100 V, e.g., Nichicon or similar

2 Surges up to 156 V for 2 s

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 8 of 19 External Input Circuitry The sum of the lengths of the supply lines to the source or to the nearest capacitor ≥100 µF (a + b) should not exceed 5 m, unless option L is fitted. This option is recommended in order to prevent power line oscillations and reduce superimposed interference voltages. Fig. 3 Switching regulator with long supply lines. Electrical Output Data General conditions: – T A = 25 °C, unless TC is specified – R-input open (or Vo set to Vo nom with option P) Table 4a: Output data Output PSC5A11 PSC129 Unit Characteristics Conditions min typ max min typ max Vo Output voltage Vi nom, Io nom 5.05 5.15 11.6 12.4 V Io Output current Vi min – Vi max 0 11.0 0 9.0 A IoL Output current limitation TC min – TC max 11.0 14.3 9.0 11.7 vo Output Switching freq.Vi nom, Io nom 55 150 mV pp voltage Total IEC/EN 61204 60 160noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 100 240 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 100 120 vo d Dynamic Voltage deviat. Vi nom 130 360 td load Recovery time Io nom ↔ 1/3 Io nom 50 60 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom Table 4b Output data. General conditions as per table 4a Output PSC159 PSC249 Unit Characteristics Conditions min typ max min typ max Vo Output voltage Vi nom, Io nom 14.5 15.5 23.3 24.7 V Io Output current Vi min – Vi max 0 9.0 0 9.0 A IoL Output current limitation TC min – TC max 9.0 11.7 9.0 11.7 vo Output Switching freq.Vi nom, Io nom 200 300 mV pp voltage Total IEC/EN 61204 210 210noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 300 480 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 150 240 vo d Dynamic Voltage deviat. Vi nom 450 700 td load Recovery time Io nom ↔ 1/3 Io nom 60 80 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom Vi+ Gi– Vo+ Go– a b 04016a

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 9 of 19 Table 4c: Output data. General conditions as per table 4a Output PSC5A12/PSL5A12 PSC5A10/PSL5A10 PSC128/PSL128 Unit Characteristics Conditions min typ max min typ max min typ max Io Output current Vi min – Vi max 0 12.0 0 11.0 0 9.0 A vo Output Switching freq.Vi nom, Io nom 55 55 150 mV pp voltage Total IEC/EN 61204 60 60 160noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 100 100 240 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 100 100 120 vo d Dynamic Voltage deviat. Vi nom 150 130 360 td load Recovery time Io nom ↔ 1/3 Io nom 50 50 60 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom Table 4d: Output data. General conditions as per table 4a Output PSC158/PSL158 PSC248/PSL248 PSC368/PSL368 Unit Characteristics Conditions min typ max min typ max min typ max Io Output current Vi min – Vi max 0 8.0 0 8.0 0 8.0 A vo Output Switching freq.Vi nom, Io nom 50 90 55 150 80 190 mV pp voltage Total IEC/EN 61204 54 94 60 155 85 195noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 70 100 150 220 200 270 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 30 45 120 160 125 160 vo d Dynamic Voltage deviat. Vi nom 130 150 220 td load Recovery time Io nom ↔ 1/3 Io nom 60 80 100 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom Table 4e: Output data. General conditions as per table 4a Output PSC126/ PSL126 PSC156 /PSL156 PSC246/PSL246 Unit Characteristics Conditions min typ max min typ max min typ max Io Output current Vi min – Vi max 0 6.0 0 6.0 0 6.0 A vo Output Switching freq.Vi nom, Io nom 30 45 50 70 50 70 mV pp voltage Total IEC/EN 61204 34 49 54 74 54 75noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 25 40 25 40 80 100 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 60 60 80 vo d Dynamic Voltage deviat. Vi nom 150 130 360 td load Recovery time Io nom ↔ 1/3 Io nom 50 50 60 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC, 16-Aug-2017 Page 10 of 19 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 50 60 70 80 90 °C Io/Io nom TA 1.0 forced cooling TA min TC max convection cooling 0.9 05031a Table 4f: Output data. General conditions as per table 4a Output PSC366/PSL366 PSC486/PSL486 Unit Characteristics Conditions min typ max min typ max Vo Output voltage Vi nom, Io nom 35.78 36.22 47.71 48.29 V Io Output current Vi min – Vi max 0 6.0 0 6.0 A IoL Output current limitation TC min – TC max 6.0 7.8 6.0 7.8 vo Output Switching freq.Vi nom, Io nom 50 90 55 110 mV pp voltage Total IEC/EN 61204 54 94 95 115noise BW = 20 MHz ∆Vo V Static line regulation Vi min – Vi max, Io nom 200 300 100 200 mV ∆Vo l Static load regulation Vi nom, Io = 0 – Io nom 120 200 180 250 vo d Dynamic Voltage deviat. Vi nom 140 150 td load Recovery time Io nom ↔ 1/3 Io nom 100 100 µsregulation IEC/EN 61204 α Vo Temperature coefficient Vi min – Vi max ±0.02 ±0.02 %/K ∆Vo/∆TC (TC min – TC max) Io = 0 – Io nom Fig. 4 Switching regulator with long supply lines. vod vod td td Vo ±1% Vo ±1% t t ≥ 10 µs ≥ 10 µs Vo 0.5 Io/Io nom 05102c Thermal Considerations When a switching regulator is located in free, quasi-stationary air (convection cooling) at a temperature T A = 71 °C and is operated at Io nom, the case temperature TC will be about 95 °C after the warm-up phase, measured at the measuring point of case temperature T C ; see Mechanical Data. Under practical operating conditions, the ambient temperature T A may exceed 71 °C, provided that 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. Fig. 5a Output current derating versus temperature (models -2) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 40 60 70 80 [°C] Io/Io nom TA 0.9 1.0 05032a TC max Convection cooling TA min Forced cooling Fig. 5b Output current derating versus temperature (models -7 or -9)

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 11 of 19 Auxiliary Functions i Inhibit (Remote On / Off) The inhibit input allows the switching regulator output to be disabled via a control signal. In systems with several converters, this feature can be used, for example, to control the activation sequence of the converters by a logic signal (TTL, C-MOS, etc.). An output voltage overshoot will not occur, when switching on or off. Note: With open i-input, the output is enabled. Fig. 7 Typical inhibit current I inh versus inhibit voltage Vinh Fig. 8 Definition of I inh and Vinh Fig. 6 Overload, short-circuit behaviour Vo versus Io. Output Protection and Short Circuit Behaviour A voltage suppressor diode, which in worst case conditions fails into a short circuit (or a thyristor crowbar, option C), protects the output against an internally generated over- voltage. Such an overvoltage could occur due to a failure of either the control circuit or the switching transistor. The output 1.0 0.8 0.6 0.4 0 0.2 0.4 1.0 1.2 0.2 0.6 0.8 Vo/Vo nom Io/Io nom Io L 05033a Io nom –40 20 40 0–20 V Iinh [mA] Vinh Output on Output off Vinh = 0.8 V Vinh = 2.4 V 06034a Vi+ Gi– Go– i Vo+ Iinh Vinh 06009a Table 5: Inhibit characteristics Characteristics Conditions min typ max Unit Vinh Inhibit input voltageVo = onVi min – Vi max –50 +0.8 V Vo = offTC min –TC max +2.4 +50 t r Switch-on time Vi = Vi nom 130 ms t f Switch-off time R L = Vo nom /Io nom 25 Ii inhInput current when inhibitedVi = Vi nom 25 mA protection is not designed to withstand externally applied overvoltages. A constant current limitation circuit holds the output current almost constant, when an overload or a short circuit is applied to the output. It acts self-protecting and recovers automatically after removal of the overload or short circuit condition. Parallel and Series Connection Outputs of equal nominal voltages can be parallel-connected. However, the use of a single regulator with higher output power, is always the better solution. 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 °C. Outputs can be series-connected with any other regulator. In series-connection the maximum output current is limited by the lowest current limitation, but electrically separated source voltages are needed for each regulator.

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 12 of 19 0 t Inhibit 0.1 Vo/Vo nom tr tf 06001 Fig. 9 Output response as a function of inhibit signal R Output Voltage Adjust Note: With open R input, Vo ≈ Vo nom. The output voltage Vo can either be adjusted with an external voltage source (Vext) or with an external resistor (R ext1 or R ext2). The adjustment range is 0 – 108% of Vo nom. The minimum differential voltage ∆Vio min between input and output (see Electrical Input Data) should be maintained. a)Vo = 0 – Vo max, using Vext between R and G (Go– for PSL): Caution: To prevent damage, Vext should not exceed 20 V, nor be negative. b) Vo = 0 to Vo nom, using Rext1 between R and G (Go– for PSL): c) Vo = Vo nom to Vo max, using R ext2 between R and G (Go– for PSL): Caution: To prevent damage, R ext2 should never be less than 47 kΩ . Fig. 10 Voltage adjustment via R-input R Vo+ Go– Vext 4 kΩVref = 2.5 V Control logic Rext1 Rext2 JM073 Gi– Vi+ G LED Output Voltage Indicator An LED indicator (yellow for PSC, green for PSL) is illuminated, when the output voltage is higher than approx. 3 V.

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 13 of 19 30 50 100 200 500 1000 MHz dBµV/m JM233 PSC126-7iR; Vi = 60 V, Vo = 12 V; Io = 6 A; R&S ESCS 30, 10 m, EN 55022:2010, Class B. Ci = 120 µ + Filter FP144; 20-Nov-2015 Electromagnetic Compatibility (EMC) Electromagnetic Immunity Table 6: Immunity type tests Phenomenon Standard Class Coupling Value Waveform Source Test In Perf. Level mode 1 applied Imped. procedure oper. crit. 2 Voltage surge3 IEC 60571-1 3 i/c, +i/–i 800 V p 100 µs 100 Ω 1 pos. and 1 neg. yes B

1500 Vp 50 µs surge per

3000 Vp 5 µs

4000 Vp 1 µs

7000 Vp 100 ns

Electrostatic IEC/EN 4 3 contact discharge 8000 Vp3 1/50 ns 330 Ω 10 positive and yes A 5 discharge 61000-4-2 2 4 to case 4000 V p4 10 negative discharges Electromagnetic IEC/EN 3 3 antenna 10 V/m 3 AM 80% 80 – 1000 MHz yes A field 61000-4-3 2 4 3 V/m4 1 kHz Electrical fast IEC/EN 3 i/c, +i/–i 2000 V p bursts of 5/50 ns 50 Ω 60 s positive yes A 5, B4 transients/burst 61000-4-4 5 kHz rep. rate 60 s negative transients with transients per 15 ms burst coupling mode duration and a 300 ms period Surges IEC/EN 2 3 i/c 1000 V p 1.2/50 µs 12 Ω / 9 µF 5 pos. and 5 neg. yes B 5 61000-4-5 23 +i/–i 500 V p 2 Ω / 18 µF surges per coupling mode Conducted IEC/EN 3 3 i, o, signal wires 10 VAC3 AM 80% 150 Ω 0.15 – 80 MHz yes A disturbances 61000 -4-6 2 4 3 VAC 4 1 kHz 1 i = input, o = output, c = case. 2 A = Normal operation, no deviation from specifications, B = Normal operation, temporary loss of function or deviation from specs possible

3 Not applicable for -2 models

4 Valid for -2 models

5 Option L neccessary; with option C, manual reset might be necessary. Electromagnetic Emissions Fig. 11a PSC126-7iR: Conducted disturbances at the input as per EN 55011, at V i o = 12 V, Io External Ci = 120 µF + Filter FP144. Fig. 11b PSC126-7iR: Radiated disturbances in 10 m distance, as per EN 55011, at V i = 60 V, Vo = 12 V,Io dBµV PSC126-7iR; Vi = 60 V, Vo = 12 V; Io = 6 A EN 55022:2010, Class B. Ci = 120 µ + Filter FP144; 20-Nov-2015 0.2 0.5 1 2 5 10 20 MHz EN 55011 A qp EN 55011 A av JM232

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 14 of 19 dBµV PSL36Z8B-0LR; Vi = 60 V, Vo = 36 V; Io = 8 A EN 55011+A1:2010, Group 1, Class A. Ci = 120 µF. 19-May-2016 0.2 0.5 1 2 5 10 20 MHz EN 55011 A av EN 55011 A qp JM230 30 50 100 200 500 1000 MHz dBµ V/m VUS EMC Labatory, ECSC 30, R&S, PSL36Z8B-0LR; Vi = 60 V, Vo = 36 V / 8 A Testdistance 10 m, EN 55011+A1:2010, Group 1, Class A, 19-May-2016 JM231 Fig. 12a PSL36Z8B: Conducted disturbances at the input according to EN 55011, group 1, class A, at Vi = 60 V, Vo = 12 V, Io = 8 A; external Cext = 120 µF. Fig. 12b PSL36Z8B: Radiated disturbances in 10 m distance, accord- ing to EN 55011, at V i = 60 V, Vo = 12 V, Io = 8 A; external Cext = 120 µF. Immunity to Environmental Conditions Table 7: Mechanical and climatic stress Test Method Standard Test Conditions Status Cab Damp heat IEC/EN 60068-2-78 Temperature: 40 ±2 °C Regulator steady state MIL-STD-810D section 507.2 Relative humidity: 93 +2/-3 % not Duration: 56 days operating Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 50 gn = 490 m/s2 Regulator (half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 11 ms operating Number of bumps: 18 (3 each direction) Fc Vibration IEC/EN 60068-2-6 Acceleration amplitude: 0.35 mm (10 – 60 Hz) Regulator (sinusoidal) MIL-STD-810D section 514.3 5 g n = 49 m/s2 (60 – 2000 Hz) operating Frequency (1 Oct/min): 10 – 2000 Hz Test duration: 7.5 h (2.5 h each axis) Fda Random vibration IEC/EN 60068-2-35 Acceleration spectral density: 0.05 g2/Hz Regulator wide band DIN 40046 part 23 Frequency band: 20 – 500 Hz operating Reproducibility Acceleration magnitude: 4.9 gn rms high Test duration: 3 h (1 h each axis) Kb Salt mist, cyclic IEC/EN 60068-2-52 Concentration: 5% (30 °C) Regulator (sodium chloride Duration: 2 h per cycle not NaCl solution) Storage: 40 °C, 93% rel. humidity operating Storage duration: 22 h per cycle Number of cycles: 3 Temperatures Table 8: Temperature specifications, valid for an air pressure of 800 - 1200 hPa (800 - 1200 mbar) Temperature -2 -7 (Option) -9 Characteristics Conditions min max min max min max Unit TA Ambient temperature 1 Regulator –10 50 –25 71 –40 71 °C TC Case temperature operating –10 80 –25 95 –40 95 TS Storage temperature 1 Non operational –25 100 –40 100 –55 85 1 See Thermal Considerations and Overtemperature Protection.

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 15 of 19 127 159.4 168.5 173.7 ±0.5 100 (19.1) 6.411 Measuring point of case temperature TC 4.9 ø5.2 Green LED Potentio- meter (opt. P) Mounting plane of connector H11 0.9 17.4 10.9 1.5 20.32 min. 5 Potentiometer (option D) Threads M3; 4 mm deep (for mounting screws) 107 ±1 9.5 36.5 ±0.8 100 ±0.5 35 26.6 34.3 40.6 M2.5 20 ±0.5 4 TE

6 TE2 TE

Dimensions in mm. Fig. 13 Case C03, weight 440 g Aluminium, black finish and self cooling European Projection PSL models The regulators are designed to be inserted into a DIN-rack according to IEC 60297-3. Dimensions in mm. Fig. 14 Case L04, weight 550 g Aluminium, fully enclosed, black finish EP powder-coated, and self cooling Gi– Go– Vo+ i Vi+ D Vo Vt GR 7.5 27.5 18.5 11.3 40 7.5 10 7.5 10 (14)7.5 10 ±2 4.3 min. 8 5 ±0.5 144 12.5 ±1 43 ±1 (45) 88 ±1 7 ±2 151 ±1 32.2 ±0.5 2.8 x 0.88.1 ±1 6.35 ±1 6.3 x 0.8 Distance between M4 mounting screws Measuring point of case temperature TC Yellow LED output voltage indicator Potentiometer (option P) Potentiometer (option D) 09023a Vo Reliability Table 9: Typical MTBF and device hours MTBF Ground Benign Ground Fixed Ground Mobile Device Hours 1 MTBF acc. to MIL-HDBK-217F TC = 40 °C TC = 40 °C TC = 70 °C TC = 50 °C 660 000 h 143 000 h 81 000 h 68 000 h 2 800 000 h

1 Statistical values, based on an average of 4300 working hours per year and in general field use

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 16 of 19 Safety and Installation Instructions Pin Allocation The pins of PSC models are printed onto the case of the regulator. The pin allocation of PSL models is shown in the table below: Table 10: H11 connector pin allocation (PSL models) Electrical Determination Type H11 Pin No. Design. R-input (or inhibit input) 1 2 R (i) Undervoltage monitor (Option D) 5 D Output voltage (negative) 8 Go– Output voltage (negative) 11 Go– Output voltage(positive) 14 Vo+ Output voltage (positive) 17 Vo+ Input voltage (negative) 20 Gi– Input voltage (negative) 23 Gi– Input voltage (positive) 26 Vi+ Input voltage (positive) 29 Vi+ Protective earth PE (leading pin) 32 1 R-input is used for the inhibit function. Consequently, option R and i exclude each other. Installation Instruction Installation 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 connecting. Connections of PSC models can be made using fast-on or soldering technique. PSL models should be plugged into a DIN-rack The input and the output circuit are not separated, i.e., the negative path is internally interconnected. The regulators should be connected to a secondary circuit. Do not open the regulator ! Ensure that a unit failure (e.g., by an internal short-circuit) does not result in a hazardous condition. Cleaning Liquids In order to avoid possible damage, any penetration of cleaning fluids must be prevented, since the power supplies are not hermetically sealed. Protection Degree The protection degree is IP 30 (IP 20, if equipped with option P, D, or D1). It applies only, if the regulator is plugged-in or the matching female connector is properly attached. Standards and Approvals All switching regulators have been approved according to the latest edition of IEC/EN 60950-1 and UL/CSA 60950-1. The regulators have been evaluated for: Building in 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 standards and with ISO 9001:2008. Isolation The resistance of the protective earth connection (max. 0.1 Ω ) is tested only for PSL models. PSC models: Electric strength test voltage between input connected with output against case: 2200 VDC, ≥1 s (for some PSC models only with version V103 or higher). PSL models: The electric strength between the input, intercon- nected with the output, and the case is tested with 500 VDC (all -2 models), 750 VDC (models with V i max = 80 V), or 1500 VDC (models with Vi max = 144) during ≥1 s. These tests are performed in the factory as routine test in accordance with EN 50514 and IEC/EN 60950. The electric strength test should not be repeated by the customer. Railway Application The regulators have been developed observing the railway standards EN 50155 and EN 50121. All boards are coated with a protective lacquer.

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 17 of 19 Description of Options -7 Temperature Range This option defines restricted temperature range as specified in table 8 (not for new designs). P Potentiometer Note: Option P is not recommended for new designs and not for several regulators operating in parallel connection. Option P excludes the R function; the R-input (pin 16) should be left open-circuit. The output voltage V o can be adjusted in the range 90 – 110% of Vo nom. However, the minimum differential voltage ∆Vi o min between input and output specified in Electrical Input Data should be respected. L Input Filter Option L is recommended to reduce superimposed inter- ference voltages and to prevent oscillations, if input lines exceed the length of approx. 5 m in total. The fundamental wave (approx. 120 kHz) of the reduced interference voltage between Vi+ and Gi– has, with an input line inductance of 5 µH, a maximum magnitude of 4 mVAC. The input impedance of the switching regulator at 120 kHz is about 3.5 Ω . The harmonics are small in comparison with the fundamental wave. With option L, the maximum permissible additionally super- imposed ripple v i 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 1V C Thyristor Crowbar Option C protects the load against power supply malfunction. It is not designed to sink external currents. A fixed-value monitoring circuit checks the output voltage V o. When the trigger voltage Vo c is reached, the thyristor crowbar triggers and disables the output. It can be deactivated by removal of the input voltage. In case of a defect switching transistor, the internal fuse prevents excessive current. Type of the fuse: Regulators with I o nom = 6 A: 6.3 A / 250 V, slow, 5 × 20 mm Regulators with Io nom > 6 A: 16 A / 250 V, slow, 5 × 20 mm Note: The crowbar can be reset by removal of the input voltage only. The inhibit signal cannot deactivate the thyristor. Fig. 15 Test circuit with definition of voltage VD and current ID Fig. 16 Definition of Vt and VH D Input Undervoltage Monitor Terminal D and Go– are connected to a normally conducting field effect transistor (JFET). A 0.5 W Zener diode protects against overvoltages. The switching characteristics of the option D output are shown in fig. 16. The voltage V t can be externally adjusted by a trim potentiometer. The hysteresis VH of Vt is <2%. Pin D stays low for a minimum time tlow min, in order to prevent any oscillation. V t Table 11: Crowbar trigger levels Characteristics Conditions Vo = 5.1 V Vo = 12 V Vo = 15 V Vo = 24 V Vo = 36 V Unit min typ max min typ max min typ max min typ max min typ max Vo c Trigger voltageTC min – TC max 5.8 6.8 13.5 16 16.5 19 27 31 40 45 V Vi min – Vi max ts Delay time Io = 0 – Io nom Vi + Gi – Go – 8.2 V D VD +5 V 100 pF ID 10 kΩ JFETVt 11025 VD VD high VD low Vt Vi VH 11026 Table 12: Data of option D Characteristics Conditions PSC/PSL Unit min typ max VD low Low impedance Vi < Vt, ID ≤ 2.5 mA 0.8 V VD high High impedance Vi > Vt + VH , 4.75 ID > 25 mA tlow min Min. durat. VD low 30 ms tD f Response to VD low 1m s ID Current through D 20 mA

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 18 of 19 can be set to a value between Vi min and Vi max. Note that the JFET becomes conductive, when VD exceeds approx. 7 V. K Connector Coding Strip For PSL models only. G RoHS Compliance Models with G are RoHS-compliant for all six substances. Accessories A variety of electrical and mechanical accessories are available including: Battery sensor [S-KSMH...] for using the regulator as battery charger. Different cell characteristics can be selected; see fig. 16 and the Temperature Sensors Data Sheet BCD20024 on our web site. Accessories suitable for PSC models PCB isolation p ads for easy and safe PCB-mounting; see fig. 18. Solder-tags for direct mounting of the regulator to a PCB board; see fig. 19. Ring core chockes for ripple and interference reduction; see fig. 20 Different filters; see fig. 21. Input filters FP; see table 13 and fig. 22. Fig . 17 Battery temperature sensors European Projection 65l l: 2 m standard length other cable lengths on request adhesive tape 09125 Fig. 18 Isolation pad HZZ01206-G 0.3 mm thick Fig. 19 Solder tag HZZ01204-G. Delivery content: 10 pieces 5.08 12035a 75 1 JM174 101 35.5 107 ∅ 4.2 Fig. 21 Different filters

PSC, PSL Series Data Sheet Positive Switching Regulators MELCHER The Power Partners.BCD20027-G Rev AC1, 12-Apr-2018 Page 19 of 19 Fig. 24 Different front panels Accessories suitable for PSL models: Various mating connectors H11, including screw, solder, fast-on, or press-fit terminals; see fig. 20 and the data sheet Casette Style Mating Connectors BCD20022 on our web site. Fig. 23 Different mating connectors, including code key system NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. 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. C opyright © 2018, Bel Power Solutions Inc. All rights reserved. belfuse.com/power-solutions Table 13: Input filters FP. TA = 25°C unless otherwise specified Characteristics Conditions FP 38 2 F P 8 0 F P 1 4 4 Unit min typ max min typ max min typ max IFn Rated current 1 L = 0.75 Lo 442 A V Fn Rated voltage TC min – TC max 5 40 5 80 15 144 VDC R F Ohmic resistance 18 20 22 18 20 22 90 95 100 m Ω Lo No load inductance IL = 0, TC min – TC max 30 34 38 30 34 38 88 100 112 µH TA Ambient temperature IF = IFn –40 80 –40 80 –40 95 °C TC Case temperature –40 92 –40 92 –40 98 TS Storage temperature –40 100 –40 100 –55 100 1 For currents IF > 4 A the following derating takes place: TA max = 100 – 1.3 IF 2 [°C], TC max = 100 – 0.49 IF 2 [°C]. 2 FP 38 is obsolete. 37.8 ±0.5 ø1.3 ±1 M 2.5 0.9 x 0.56 25 ±0.5 min. 4.5 16.6 ±1 6.8 ±1 5.08 5.08 12016a positioning pin positioning pinFig. 22 Mechanical data of FP filters. Weight approx. 30 g European Projection Code key system for connector coding. Coding wedges HZZ00202-G (5 pie- ces); see fig. 23. V arious front panels for 19" racks with 3U heigth, Schroff or Intermas For additional accessory product information, see the accessory data sheet listed with each product series or individual model at our web site.

Product Information

PSC129-2iR specifications and overview.

Summary

Positive Switching Regulators

Description

Positive Switching Regulators

Source title PSC129-2iR Datasheet(PDF) - Bel Fuse Inc.

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