AVE450-48S32LD

48Vdc Input, 32Vdc@14A Output Half-brick DC-DC Converter AVE450-48S32LD Description AVE450-48S32LD is a single output DC-DC converter with standard half-brick outline and pin configuration. It delivers up to 14A output current with 32V output voltage. Above 94.5% ultra-high efficiency and excellent thermal performance make it an ideal choice to supply power to a power amplifier in telecom and datacom. The aluminium baseplate structure makes it possible for the module to work under -40°C ~ +85°C without air cooling. Operational Features






Delivering up to 14A output current Ultra-high efficiency 94.5% typ. at full load Wide input range: 38V ~ 75V Excellent thermal performance No minimum load requirement Fixed frequency operation RoHS 6 compliant Control Features


Remote control function (negative or positive logic optional) Remote output sense Trim function: -50% ~ +3% Protection Features



Mechanical Features


Industry standard half-brick pin-out outline With a baseplate Pin length option: 5.8mm Safety & EMC




Meets basic insulation requirements of EN60950 UL60950 recognized and certified to IEC/EN60950 Meets 72/23/EEC and 93/68/EEC Directives which facilitates CE marking in user’s end product All materials meet UL94, V-0 flammability rating Meets conducted emissions requirements of FCC Class A and EN55022 Class A with external filter Input under-voltage lockout Output over-current protection Output over-voltage protection Over-temperature protection Document No.: 31020786 May. 21, 2011 Rev 1.0 2/13 AVE450-48S32LD DC-DC Converter TRN Electrical Characteristics Full operating ambient temperature range is -40°C to +85°C. Specifications are subject to change without notice. Parameter Min. Typ. Max. Unit Notes & conditions Absolute max. ratings Input voltage Non-operating 100 V 100ms Operating 80 V Continuous Operating temperature -40 +85 °C Storage temperature -55 +125 °C Voltage at remote ON/OFF pin -0.3 15 V Input characteristics Operating input voltage range 38 48 75 V Turn-on voltage threshold 32 34 36 V Turn-off voltage threshold 30 32 35 V Lockout voltage hysteresis 1 1.5 2 V Max. input current 14 A No-load input current 0.2 A 0.1 A Input under-voltage lockout Standby input current 0.01 Inrush current transient rating When the input voltage is less than 38V, the output voltage may less than 32V. Figure 13 38Vin, full load Remote OFF A2s Input reflected ripple current 50 Recommended input fuse Input filter component values (C\L) Recommended external input capacitance 600 mA 20 A Through 12µH inductor, see Application Note External fast blow fuse is recommended; Figure 11 10\0.7 µF\µH Internal values 470 µF Low ESR capacitor is recommended; Figure 11 48Vin, full load, 25°C Output characteristics Output voltage set point (standard option) Output voltage line regulation 31.68 32 32.32 V 0.05 0.2 % 16 64 mV http://www.emersonnetworkpower.com.cn 3/13 AVE450-48S32LD DC-DC Converter TRN Parameter Min. Output voltage load regulation Output voltage temperature regulation Typ. Max. Unit 0.1 0.5 % 32 160 mV 6.4 Total output voltage range 31.04 Notes & conditions mV/°C Over sample, line, load, temperature & life 32.00 32.92 V 100 200 mVpp 0 14 A Output DC current-limit inception 16.8 22 A Output capacitance 680 4400 µF High frequency and low ESR capacitor are recommended Output voltage ripple and noise Operating output current rang 1000 20MHz bandwidth; Figure 16 First foldback then hiccup; Figure 10 Dynamic characteristics Dynamic response Turn-on transient 50% ~ 75% ~ 50% Io,max, 0.1A/µs 200 500 mV 25°C, nominal input voltage; Figure 11 Settling time 60 500 µs Recovery to within 1% Vo,nom Rise time 50 100 ms Figure 6 Turn-on delay time 50 100 ms Output voltage overshoot 0 5 %Vo Efficiency 100% load 94.5 % Figure 1 50% load 94.5 % Figure 1 http://www.emersonnetworkpower.com.cn 4/13 AVE450-48S32LD DC-DC Converter TRN Electrical Characteristics (Continued) Parameter Min. Typ. Max. Unit Notes & conditions Isolation characteristics Isolation voltage (conditions: 1mA for 60s, slew rate of 1500V/10s) 1500 V Basic insulation, pollution degree 2, input to output 1500 V Basic insulation, pollution degree 2, input to baseplate 500 V Basic insulation, pollution degree 2, output to baseplate Feature characteristics Switching frequency 260 290 320 kHz Remote ON/OFF control (positive logic) Off-state voltage -0.3 0.8 V On-state voltage 2.0 15 V Remote ON/OFF control (negative logic) Off-state voltage 2.0 15 V On-state voltage -0.3 0.8 V 14 33 V 0.5 V Output voltage trim range Figure 8 and Figure 9 Output voltage remote sense range Output over-voltage protection 110 114 131 %Vo,nom Over-temperature shutdown 100 110 120 °C Over-temperature hysteresis 10 SeeTrim Characteristics of Application Note Auto recovery Auto recovery; Test point: Figure 19 °C Reliability characteristics Calculated MTBF (telcordia ) 2.8 106h Telcordia SR-332-2006; 80% load, 300LFM, 40°C Ta Caution: External output capacitor must be present for normal operation http://www.emersonnetworkpower.com.cn 5/13 AVE450-48S32LD DC-DC Converter TRN Qualification Testing Parameter Unit (pcs) Test condition Halt test 4~5 Ta,min-10°C to Ta, max+10°C, 5°C step, Vin = min to max, 0 ~ 105% load Vibration 3 Frequency range: 5Hz ~ 20Hz, 20Hz ~ 200Hz, A.S.D: 1.0m2/s3, -3db/oct, axes of vibration: X/Y/Z Time: 30 min/axis Mechanical shock 3 30g, 6ms, 3 axes, 6 directions, 3 time/direction Thermal shock 3 -40°C to +100°C, unit temperature 20 cycles Thermal cycling 3 -40°C to +55°C, temperature change rate: 1°C/min, cycles: 2 cycles Humidity 3 40°C, 95%RH, 48h Solder ability 15 IPC J-STD-002C-2007 Characteristic Curves Figure 1 Efficiency vs. output current, Ta = 25°C, Vo = 32V 14A Io Tc Figure 2 C 100 ° Output power derating Tc: temperature test point on baseplate, see Figure 19 for test configuration http://www.emersonnetworkpower.com.cn 6/13 AVE450-48S32LD DC-DC Converter TRN Figure 3 Output ripple & noise (2µs/div, 50mV/div), see Figure 16 for test configuration Figure 4 Input reflected ripple current (2µs/div, 25mA/div), see Figure 16 for test configuration Figure 5 Dynamic response for 25% load step (50% ~ 75% ~ 50%) and 0.1A/µs slew rate, (2ms/div), see Figure 11 for test configuration; CH1-output voltage (200mV/div); CH2-output current (5A/div) Figure 6 Output voltage startup by power-on, (50ms/div), see Figure 11 for test configuration; CH1-input voltage (20V/div); CH4-output voltage (10V/div) Figure 7 Output voltage shut down by power-off, (5ms/div), see Figure 11 for test configuration; CH1-input voltage (20V/div); CH4-output voltage (10V/div) Figure 8 Output voltage startup by remote ON, (20ms/div), see Figure 11 for test configuration; CH1-remote ON (5V/div); CH4-output voltage (10V/div) http://www.emersonnetworkpower.com.cn 7/13 AVE450-48S32LD DC-DC Converter Vo 28V 15V 10V 0V 0 0A Figure 9 Output voltage shutdown by remote OFF, (2ms/div), see Figure 11 for test configuration; CH1-remote OFF voltage (5V/div); CH4-output voltage (10V/div) 16A 20.8A Io Figure 10 Over-current protection characteristics (for reference only) Application Note Typical Application Figure 11 Typical application C1: 470µF/100V electrolytic capacitor, P/N: UPW2A471MHD (Nichicon) or equivalent C2, C3: 1µF/100VX7R ceramic capacitor, P/N: C3225X7R2A105KT0L0U (TDK) or equivalent C4: 680µF electrolytic capacitor, P/N: UUD1H681MNL1GS (Nichicon) or equivalent Fuse: 20A fast blow fuse. P/N: 0324020 MXP (LITTLEFUSE) Double minimum input/output capacitance is necessary for normal operation and performance in case of Ta < 0°C. http://www.emersonnetworkpower.com.cn 8/13 AVE450-48S32LD DC-DC Converter Remote ON/OFF Either positive or negative remote ON/OFF logic is available in AVE450-48S32LD. The logic is CMOS and TTL compatible. Below is the detailed internal circuit and reference in AVE450-48S32LD. 10V 12.4K 10V CNT PWM controller 15K 12.4K CNT + 2.0V 10K 10K N Logic Figure 12 PWM controller P Logic Remote ON/OFF internal diagram Trim Characteristics Connecting an external resistor between Trim pin and Vo- pin will decrease the output voltage, while connecting it between Trim and Vo+ will increase the output voltage. The following equations determine the external resistance to obtain the trimmed output voltage. 100% Radj _ down = ( − 2)kΩ ∆% V (100% + ∆%) 100% + 2 × ∆% Radj _ up = ( o − )kΩ 1.225 × ∆% ∆% ∆ % : Output voltage rate against nominal output voltage. Vnorm : Nominal output voltage. For example, to get 33V output, the trimming resistor is: Radj _ up = ( 33 100% + 2 × (33 − 32) / 32 − ) = 827.8kΩ 1.225 × (33 − 32) / 32 (33 − 32) / 32 The output voltage can also be trimmed by potential applied at the Trim pin. Vo = (Vtrim + 1.225) × 13.07 V V Where trim is the potential that applied at the Trim pin, and o is the desired output voltage. When trimming up, the output current should be decreased accordingly so as not to exceed the maximum output power and the minimum input voltage should be increased as shown in the following figure. http://www.emersonnetworkpower.com.cn 9/13 AVE450-48S32LD DC-DC Converter Output voltage 33V 30.8V 36V 75V 39V Input voltage Figure 13 Maximum adjustable output voltage vs. input voltage Vo+ S+ Vo+ S+ Load Trim Trim R trim _up Load R trim _down Cout Cout S- S- Vo- Vo- Figure 14 Trim up Figure 15 Trim down Sense Characteristics If the load is far from the unit, connect S+ and S- to the terminals of the load respectively to compensate the voltage drop on the transmission line. See Figure 11. If the sense compensation function is not necessary, short S+ to Vo+ and S- to Vo- respectively. Inrush Current, Input And Output Ripple & Noise Test Configuration L1 Current probe Vin+ Vdc Vo+ C1 C2 Cin C3 AVE450 Vin- Figure 16 C4 Load Vo- Inrush current, input and output ripple & noise test configuration Vdc: DC power supply. L1: 12µH inductor. Cin: 220µF/100V electrolytic capacitor. C1 ~ C4: See Figure 11. http://www.emersonnetworkpower.com.cn 10/13 AVE450-48S32LD DC-DC Converter Note: It is recommended to use a coaxial cable with 50Ω resistor and 0.68µF ceramic capacitor or a ground ring of probe to test output ripple & noise. EMC Filter Configuration Figure 17 EMC test configuration U1: 20A input EMC filter module (P/N: FM100-20) U2: Module to test, AVE450-48S32LD C1 ~ C4: See Figure 11 Mechanical Diagram 57.9 [2.280] 48.26 [1.900] 6 3 7 2 8 1 9 4-M3/Ø3.4 L 12.7 [0.500] SIDE VIEW 7-Ø1.0±0.1 2-Ø2.0±0.1 LOAD BOARD UNIT: mm[inch] BOTTOM VIEW: pin on upside TOLERANCE: X.Xmm±0.5mm[X.X in.±0.02in.] X.XXmm±0.25mm[X.XX in.±0.01in.] Figure 18 Mechanical diagram http://www.emersonnetworkpower.com.cn 50.8 [2.000] 5 35.56 [1.400] BOTTOM VIEW 15.24 [0.600] 35.56 [1.400] 15.24 [0.600] 50.8 [2.000] 61.0[2.402] 4 11/13 AVE450-48S32LD DC-DC Converter Pin Length Option Device code suffix L -4 4.8mm ± 0.2mm -6 3.8mm ± 0.2mm -8 2.8mm ± 0.2mm None 5.8mm ± 0.2mm Pin Designations Pin No. Name Function 1 Vin+ Positive input voltage 2 CNT Remote ON/OFF control 3 Case Case 4 Vin- Negative input voltage 5 Vo- Negative output voltage 6 S- Negative remote sense 7 Trim 8 S+ Positive remote sense 9 Vo+ Positive output voltage Output voltage trim Soldering The product is intended for standard manual or wave soldering. When wave soldering is used, the temperature on pins is specified to maximum 260°C for maximum 7s. When manual soldering is used, the iron temperature should be maintained at 300°C ~ 380°C and applied to the converter pins for less than 10s. Longer exposure can cause internal damage to the converter. Cleaning of solder joint can be performed with cleaning solvent IPA or similative. http://www.emersonnetworkpower.com.cn 12/13 AVE450-48S32LD DC-DC Converter Thermal Considerations Test point Figure 19 Temperature test point on baseplate Ordering Information AVE450 - ① 48 S 32 P ② ③ ④ ⑤ - 6 L ⑥ ⑦ / ① Model series AVE: high efficiency half-brick series; 450: output power 450W ② Input voltage 48: 38V ~ 75V input range, rated input voltage 48V ③ Number of outputs S: single output ④ Rated output voltage 32: 32V output ⑤ Remote ON/OFF logic Default: negative; P: positive logic ⑥ Pin length -6: 3.8mm ⑦ RoHS status L: RoHS, R6 ⑧ Structure Default: non-threaded mounting hole; M: threaded mounting hole Model number AVE450-48S32LD Description 5.8mm pin length; negative on/off logic; threaded mounting hole; R6 compliant http://www.emersonnetworkpower.com.cn M ⑧ 13/13 AVE450-48S32LD DC-DC Converter Hazardous Substances Announcement (RoHS of China) Parts AVE450-48S32LD Hardarzous substances ＋ Pb Hg Cd Cr6＋ PBB PBDE ○ ○ ○ ○ ○ ○ ○: Means the content of the hazardous substances in all the average quality materials of the part is within the limits specified in SJ/T-11363-2006 √: Means the content of the hazardous substances in at least one of the average quality materials of the part is outside the limits specified in SJ/T11363-2006 Emerson Network Power Co., Ltd. has been committed to the design and manufacturing of environment-friendly products. It will reduce and eventually eliminate the hazardous substances in the products through unremitting efforts in research. However, limited by the current technical level, the following parts still contain hazardous substances due to the lack of reliable substitute or mature solution: 1. Solders (including high-temperature solder in parts) contain plumbum. 2. Glass of electric parts contains plumbum. 3. Copper alloy of pins contains plumbum http://www.emersonnetworkpower.com.cn