ESTW025A0F41Z

Data Sheet October 11, 2011 ESTW025A0F Series (Eighth-Brick) DC-DC Converter Power Modules 36–75Vdc Input; 3.3Vdc Output; 25A Output Current STINGRAY™ SERIES Features          Wide input voltage range: 36-75 Vdc Delivers up to 25A Output current Monotonic startup into prebiased load Output Voltage adjust: 80% to 110% of Vo,nom Remote sense Constant switching frequency Positive remote On/Off logic Input under voltage protection Output overcurrent and overvoltage protection Over-temperature protection Industry standard, DOSA compliant footprint 57.9mm x 22.8mm x 8.5mm (2.28 in x 0.9 in x 0.335 in) Low profile height and reduced component skyline Suitable for cold wall cooling using suitable Gap Pad applied directly to top side of module High efficiency 92% at full load (Vin=48Vdc) No thermal derating up to 68°C, 1.0m/s (200 LFM) Wide operating temperature range (-40°C to 85°C) Compliant to RoHS EU Directive 2002/95/EC (-Z versions) Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions) UL* 60950-1, 2nd Ed. Recognized, CSA† C22.2 No. 60950-1-07 Certified, and VDE‡ (EN60950-1, 2nd Ed.) Licensed CE mark meets 2006/95/EC directive § RoHS Compliant Applications      Distributed power architectures Wireless networks Access and optical network Equipment Enterprise Networks including Power over Ethernet (PoE) Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor powered applications           Options     Negative Remote On/Off logic (-1 option, preferred/standard) Surface Mount version (-S option) Auto-restart (-4 option, preferred/standard) Trimmed leads (-6 or -8 options)   Meets the voltage and current requirements for ETSI 300-132-2 and complies with and licensed for Basic insulation rating per EN60950-1 2250 Vdc Isolation tested in compliance with IEEE ¤ 802.3 PoE standards ISO 9001 and ISO 14001 certified manufacturing facilities **   Description The ESTW025A0F series, Eighth-brick power modules are isolated dc-dc converters that can deliver up to 25A of output current and provide a precisely regulated output voltage over a wide range of input voltages (Vin = 36 -75Vdc). The module achieves typical full load efficiency of 92% at 3.3Vdc output voltage. The open frame modules construction, available in both surface-mount and through-hole packaging, enable designers to develop cost- and space-efficient solutions. * UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. § This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed. ¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated. ** ISO is a registered trademark of the International Organization of Standards ‡ † Document No: DS09-013 ver.1.01 PDF name: ESTW025A0F.pdf Data Sheet October 11, 2011 ESTW025A0F Series Eighth-Brick Power Modules 36–75Vdc Input; 3.3Vdc Output; 25A Output Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Input Voltage Continuous Transient, operational (≤100 ms) Operating Ambient Temperature Maximum Base-plate Operating Temperature (see Thermal Considerations section) Storage Temperature I/O Isolation voltage (100% factory Hi-Pot tested) All All Tstg -55 125 2250 °C Vdc All All All -18H, H VIN VIN,trans TA TC -0.3 -0.3 -40 -40 80 100 85 110 Vdc Vdc °C °C Device Symbol Min Max Unit   Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Operating Input Voltage Maximum Input Current (VIN= VIN, min to VIN, max, IO=IO, max) Input No Load Current (VIN = VIN, nom, IO = 0, module enabled) Input Stand-by Current (VIN = VIN, nom, module disabled) Inrush Transient Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, max, IO= IOmax ; See Test configuration section) Input Ripple Rejection (120Hz) Device All All All All All Symbol VIN IIN,max IIN,No load IIN,stand-by It 2 Min 36 Typ 48 Max 75 2.7 Unit Vdc Adc mA 50 6 8 1 mA As 2 All 30 mAp-p All 50 dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architectures. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 5 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. LINEAGE POWER 2 Data Sheet October 11, 2011 ESTW025A0F Series Eighth-Brick Power Modules 36–75Vdc Input; 3.3Vdc Output; 25A Output Electrical Specifications (continued) Parameter Nominal Output Voltage Set-point VIN=VIN, nom, IO=IO, max, TA=25°C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Output Regulation Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Temperature (Tref=TA, min to TA, max) Output Ripple and Noise on nominal output (Co=1uF,ceramic+10uF,tantalum, VIN=VIN, nom ,IO= IO, max , TA=TA, min to TA, max) RMS (5Hz to 20MHz bandwidth) Peak-to-Peak (5Hz to 20MHz bandwidth) External Capacitance 1 Device All All Symbol VO, set VO Min 3.250 3.200 Typ 3.300    ±0.2 Max 3.350 3.400 Unit Vdc Vdc All All All    ±0.1 10 % VO, set mV % VO, set All All All All All All CO, max Io   0 0 26.3 8 40   29 1.6 20 75 20,000 25.0 32.5 mVrms mVpk-pk μF Adc Adc Arms Output Current Output Current Limit Inception (Hiccup Mode ) (VO= 90% of VO, set) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode) Efficiency VIN= VIN, nom, TA=25°C, IO=IO, max , VO= VO,set VIN= VIN, nom, TA=25°C, IO=10A , VO= VO,set VIN= VIN, nom, TA=25°C, IO=5A , VO= VO,set Switching Frequency Dynamic Load Response (Co=1uF,ceramic+220uF,tantalum, dIo/dt=0.1A/s; VIN = 48V; TA=25°C) Load Change from Io= 50% to 75% or 25% to 50% of Io,max Peak Deviation Settling Time (Vo1 second and then the On/Off input is set to ON (Tdelay = time from instant On/Off signal is ON until VO = 10% of VO, set) Case 2: On/Off input is set to Logic Low (Module ON) and then input power is applied (Tdelay = time at which VIN = VIN, min until Vo=10% of VO,set) Output voltage Rise time (time for Vo to rise from 10% of Vo,set to 90% of Vo, set) Output voltage overshoot – Startup IO= IO, max; VIN=VIN, min to VIN, max, TA = 25 C Prebias Output Load Performance: Output Start up characteristic Back Bias current drawn from output (Module Enabled) Remote Sense Range Output Voltage Adjustment Range Output Overvoltage Protection (CO=470μF) Input Undervoltage Lockout Turn-on Threshold Turn-off Threshold Hysteresis 1. 2. 2 o o 1 Device Symbol Min Typ Max Unit All All All All Ion/off Von/off Von/off Ion/off  -0.7 2.4      0.15 0.6 15.0 25 mA Vdc Vdc μA All Tdelay ― 12 ― msec All All All Tdelay Trise ― ― 20 4 ― ― ― 5 msec msec % VO, set All All All All All All All VO, limit Tref VUVLO  30.5 1.0 VSENSE -20 3.9  Monotonic -15 10 +10 5.1 125 34.0 32.0 2.0  35.5   mAdc % VO, set % VO, set Vdc O Overtemperature Protection – Hiccup Auto Restart C Vdc Vdc Vdc The module has an adaptable extended Turn-On Delay interval, Tdelay, of 25mS. The extended Tdelay will occur when the module restarts following the rapid cycling of Vin from normal levels to less than the Input Undervoltage Lockout (which causes module shutdown), and then back to normal. The module requires a minimum of 470 μF external output capacitor to prevent shutdown during full load to no load transients and to avoid exceeding the OVP maximum limits during startup into open loop fault conditions. LINEAGE POWER 4 Data Sheet October 11, 2011 ESTW025A0F Series Eighth-Brick Power Modules 36–75Vdc Input; 3.3Vdc Output; 25A Output Characteristic Curves The following figures provide typical characteristics for the ESTW025A0F (3.3V, 25A) at 25 C. The figures are identical for either positive or negative remote On/Off logic. OUTPUT CURRENT OUTPUT VOLTAGE VO (V) (200mV/div) o EFFICIENCY,  (%) OUTPUT CURRENT, IO (A) Io(A) (5A/div) TIME, t (200µs/div) Figure 1. Converter Efficiency versus Output Current. Figure 4. Transient Response to 0.1A/µS Dynamic Load Change from 50% to 75% to 50% of full load. OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (2s/div) On/Off VOLTAGE VOn/off (V) (5V/div) VO (V) (1V/div) TIME, t (10ms/div) Figure 2. Typical output ripple and noise (VIN = VIN,NOM, Io = Io,max). OUTPUT CURRENT OUTPUT VOLTAGE VO (V) (200mV/div) Figure 5. Typical Start-up Using Remote On/Off, negative logic version shown (VIN = VIN,NOM, Io = Io,max). OUTPUT VOLTAGE INPUT VOLTAGE Io(A) (5A/div) TIME, t (200µs/div) VIN (V) (20V/div Vo (V) (1V/div) TIME, t (5ms/div) Figure 3. Transient Response to 0.1A/µS Dynamic Load Change from 25% to 50% to 25% of full load. Figure 6. Typical Start-up Using Input Voltage (VIN = VIN,NOM, Io = Io,max). LINEAGE POWER 5 Data Sheet October 11, 2011 ESTW025A0F Series Eighth-Brick Power Modules 36–75Vdc Input; 3.3Vdc Output; 25A Output Test Configurations TO OSCILLOSCOPE LTEST Vin+ 12 μH CURRENT PROBE Design Considerations Input Filtering The power module should be connected to a low ac-impedance source. Highly inductive source impedance can affect the stability of the power module. For the test configuration in Figure 7 a 100μF electrolytic capacitor (ESR