SRXA-50TD10 BEL | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 11

Technical content

The SRXA-50TD10 is isolated DC/DC converter that operates from a nominal 48 VDC source. This unit will provide up to 6 2 W of output power from a nominal 48 VDC input. This unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection, short circuit protection, input under-voltage lockout, Pre-bias Start Up and SYNC. This converter is provided in an industry standard package. Target applications include computer, networking and telecommunication industries.

  • 36 - 72 VDC Input
  • 3.0 VDC / 10 A, 2.0 VDC / 10 A Dual Output
  • Isolated
  • Fixed Frequency (300 kHz)
  • High Efficiency
  • High Power Density
  • Low Cost
  • Pre-Bias Start Up
  • Input Under-Voltage Lockout
  • SYNC
  • Output Over Voltage Shutdown
  • Output Voltage Trim
  • OCP / SCP
  • Over Temperature Protection
  • Remote On/Off
  • Basic Insulation
  • TUV certified to EN 60950-1
  • Networking
  • Computers and Peripherals
  • Telecommunications

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 MODEL NUMBER INPUT VOLTAGE OUTPUT VOLTAGE MAX. OUTPUT CURRENT MAX. OUTPUT POWER TYPICAL EFFICIENCY SRXA-50TD10 36 VDC - 72 VDC 3.0 VDC / 2.0 VD 15 A 60 W 89% NOTE: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. 2. All part numbers above indicate RoHS 6. S R XA - 50 T D1 x y Mount Type RoHS Status Series Name Output power Input Range Output Voltage Active Logic Package Surface Mount RoHS 1/4th brick 60W 36-72 V 3.0V/2.0 V 0- Active high G-Tray package PARAMETER DESCRIPTION MIN TYP MAX UNIT Input Voltage Continuous -0.3 - 75 V Remote On/Off Active Low -0.3 - 15 V Ambient Temperature -40 - 85 C Storage Temperature -55 - 125 C NOTE: All specifications are typical at 25 C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Input Voltage Ta min…Ta max, Io=0……Io nom 36 48 72 V Input Current Vin=36 V Vin=48 V Vin=72 V 0.03 0.03 0.03 1.77 1.40 0.93 2.7 2.1 1.7 A Turn-on Voltage Threshold - - 32 V Turn-off Voltage Threshold Nominal output voltages guaranteed for 2mS at 48Vdc, 360uF on input side and maximum capacitive output load 29 - 32 V Converter 1Start-up Time Worst case condition at Ui min and full load - - 1 s Rise Time 1 Ui nom, Io=Io nom and both outputs are from 10% to 90% with maximum capacitive load - - 12 ms No Load Input Power (300 kHz) Io=0, Ui min...Ui max - - 3.5 W Input Voltage Transition Rate - - 5 V/ms Inrush Current Transient Rating Without external capacitance - - 0.01 A2s Input Fuse (not internally) Fast-acting fuse rated at least for 125Vdc - - 4 A Reflected Ripple Current Vin=48V Io=0...Io nom for each output - - 60 mApp 1 Measured with the max admissible capacitive load on both outputs.

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 PARAMETER DESCRIPTION MIN TYP MAX UNIT Output Voltage Set Point Test conditions: Vin=48 V, 50% load VO1 = 3.0 V VO2 = 2.0 V 2.97 1.98 3.03 2.02 V Total Output Voltage Regulation VO1 = 3.0 V VO2 = 2.0 V 2.90 1.92 3.10 2.08 V Output Current VO1 = 3.0 V VO2 = 2.0 V 10 A Output Current Limit VO1 = 3.0 V VO2 = 2.0 V 15 A Output Over-Votage Protection VO1 = 3.0 V VO2 = 2.0 V 115 115 125 125 % Short Circuit Protection Ton Toff 150 250 ms Ripple and Noise (rms) Test conditions: 0 to 20 MHz BW, with a 10 µF ceramic capacitor at the output. VO1 = 3.0 V VO2 = 2.0 V mV Ripple and Noise (pk-pk) VO1 = 3.0 V VO2 = 2.0 V 100 80 mV Output Capacitance VO1 = 3.0 V VO2 = 2.0 V 100 100 2000 2000 µF Overshoot at Turn On - - 5 % Transient Response 50% ~ 100% Max Load Overshoot Test conditions: di/dt = 5 A/ µs, Vin=48 V, with a 470 µF / 6.3 V Tantalum capacitor at the output. VO1 = 3.0 V - - 200 mV Settling Time - - 300 µs 100% ~ 50% Max Load Overshoot - - 200 mV Settling Time - - 300 µs 50% ~ 100% Max Load Overshoot VO2 = 2.0 V - - 200 mV Settling Time - - 300 µs 100% ~ 50% Max Load Overshoot - - 200 mV Settling Time - - 300 µs NOTE: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 PARAMETER DESCRIPTION MIN TYP MAX UNIT Input to Each Output Test Voltage - - 1500 V Input to Baseplate - - 1500 V Input to Each Output Resistance - - 10 Mohm Isolation Capacitance - - 20 nF Switching Frequency 280 300 320 kHz Efficiency 2 Vin = 38.4 – 72 V max load on each output, V1 = 2.5 V, V2 = 1.8 V 82 84 - % Vin = 38.4 – 72 V max load on each output, V1 = 3.3 V, V2 = 2.5 V 85 86 - % Output Voltage Trim Range VO1 80 - 120 % VO2 75 - 130 % Over Temperature Protection - 115 - C Life Time 20 - - years MTBF Calculated Per Bell Core SR-332 (IO = Normal; TA = 25 C) TBD Dimensions (L × W × H) 2.3 x 1.5 x 0.48 58.4 x 38.1 x 12.1 in mm Weight - 40 - g NOTE: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Signal Low (Unit On) Active Low Remote On/Off pin open, Unit off. -0.3 - 0.8 V Signal High (Unit Off) 2.7 - 15 V SRXA-50TD10 2 The efficiency is measured at switching frequency of 300 kHz. 50% 55% 60% 65% 70% 75% 80% 85% 90% 10% Load 25% Load 50% Load 75% Load 100% Load OUTPUT CURRENT (A) EFFICIENCY 38.4 48.0 60.0 72.0

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 The resistor should be connected between the Trim pin and Ground. Vo1 Rt1 (Kohm) Vo2 Rt2 (Kohm) 3,60 2,60 3,55 70,000 2,55 50,000 3,50 34,000 2,50 24,000 3,45 22,000 2,45 15,333 3,40 16,000 2,40 11,000 3,35 12,400 2,35 8,400 3,30 10,000 2,30 6,667 3,25 8,286 2,25 5,429 3,20 7,000 2,20 4,500 3,15 6,000 2,15 3,778 3,10 5,200 2,10 3,200 3,05 4,545 2,05 2,727 3,00 4,000 2,00 2,333 2,95 3,538 1,95 2,000 2,90 3,143 1,90 1,714 2,85 2,800 1,85 1,467 2,80 2,500 1,80 1,250 2,75 2,235 1,75 1,059 2,70 2,000 1,70 0,889 2,65 1,789 1,65 0,737 2,60 1,600 1,60 0,600 2,55 1,429 1,55 0,476 2,50 1,273 1,50 0,364 2,45 1,130 - - 2,40 1,000 - -

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 33.6 V/10 A,2.6 V/10 A 3.3 V/10 A,2.5 V/10 A 3.0 V/10 A,2.0V /10 A 06-02-05

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 Temperature reference points on top side Temperature reference points on bottom side

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 Vin = 36 V Vin = 48 V Vin = 75 V Iout1=Iout2=10A Iout1=Iout2=0A Iout1=Iout2=9.5A Iout1=Iout2=0A Iout1=Iout2=8.5A Iout1=Iout2=0A Vout1 = 3 V, Vout2 = 2 V, Ta = 25°C; 0 LFM, fs = 300 kHz Vin = 36 V Vin = 48 V Vin = 75 V Iout1=Iout2=9.5A Iout1=Iout2=0A Iout1=Iout2=9A Iout1=Iout2=0A Iout1=Iout2=8.5A Iout1=Iout2=0A Vout1 = 3.3 V, Vout2 = 2.5 V, Ta = 25°C; 0 LFM, fs = 300 kHz Material flammability: UL94V-0 Electromagnetic Compatibility EMC 1. Electric field IEC801-3(1984), IEC1000-4-3 2. Fast transient/burst IEC801-4(1988), IEC1000-4-4 Input RFI level conducted and radiated (subject to test by customer) Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter. Conv.positive input Conv.negative input C1 C2 C3 T1 +Vin -Vin C1=3.3 uF /100 V; C2=C3= 6 uF/Watt; C4=C5=1000 pF/250 Volt; T1=3 mH.

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 Control Isolated Feedback Control Choke Capacitor Resistor Control 10 Control Control

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 PIN NAME FUNCTION

1 Sync Synchronization pin

2 ON/OFF Remote on/off Control pin

3 Vin (−) Negative input voltage

4 Vin (+) Positive input voltage

5 +Vout2 2.0 V Output positive terminal

6 GND Return terminal for output voltage

7 OV2 Vout2 overvoltage pin

8 TRIM2 Vout2 Trim pin

9 TRIM1 Vout1 Trim pin

10 OV1 Vout1 overvoltage pin

11 GND Return terminal for output voltage

12 +Vout1 3.0 V Output positive terminal NOTES: 1. The module guarantees at least 0.7mm as clearance distance on bottom side. This issue should be considered if any copper traces are on the top side of the user's board. 2. Co-planarity ≤ 0.2 mm in accordance with Jedec 95-1 appendix B IPC CM770 with datum on sealing plane. 3. Tolerance among one pin (lead) and all the other ones ≤ 0.3 mm. 4. The two metallic pins for manual positioning have 1mm as diameter and must be 0.81.4mm longer than smt pins; however, they may be present or not in agreement with soldering process. NOTE: These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 245 C.

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2018 Bel Power Solutions & Protection Rev. B1 1. The DC-DC Converter can be operated at an ambient temperature up to 85°C maximum. When installed into final system, the installation must be in accordance with provided installation instruction and the relevant requirements of EN 60950-1:2001 + A11 and IEC 60950-1:2001. 2. The DC-DC converter is not internal fused, the end user is to provide a maximum normal below 4A fuse in unearthed pin when install the converter into final system. 3. The creepage distances, clearances and thickness of in sulation between unearthed hazardous voltage input and SELV output circuits have complied with basic insulation requirements according to EN 60950-1:2001 + A11 and IEC 60950-1:2001. 4. The output ratings as shown on the label must not be exceeded. 5. The equipment is to be supplied from a DC source which is separated from AC mains by double or reinforced insulation, or by basic insulation and suitable earthing providing equivalent protection. 6. The equipment is intended to be installed into a class I or Class II sy stem, suitable external protection devices have to provided in the final system. Protective earth has to be reliably identified and if equipment is to be installed into Class I system. 7. The equipment shall be installed with an external cooling condition; typical cooling conditions are given in derating for reference. The airflow direction is towards the side of the equipment. DATE REVISION CHANGES DETAIL APPROVAL 2008-04-09 A J. Wei 2011-08-25 B Update the reflow solder temperature. HL.Lu NUCLEAR AND MEDICAL APPLICATIONS - 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.