APPLICATION NOTES Rev. B MPQ48S24-100 100 W DC-DC Converter 36-75 Vdc Input 24 Vdc Output at 4.17 A Quarter-Brick Package Features: x Over 87% Efficient at Full Load x Fast Transient Response x Operation to No Load x Output Trim +/-10% x Remote ON/OFF x Remote Sense Compensation x Low Output Ripple x x x x x x x Fixed Switching Frequency Output Over Current Protection Output Short Circuit Protection Over Temperature Protection 1500 VDC Isolation 100% Burn In Heatsink Available Description: The MPQ series is a high density, low voltage input quarter brick converter that incorporates the desired features required in today’s demanding applications while maintaining low cost. When performance, reliability, and low cost are needed, the MPQ series delivers. (888) 597-WALL www.wallindustries.com 1 WALL INDUSTRIES, INC. APPLICATION NOTES Rev. B MPQ48S24-100 Model No. MPQ48S24-100 Technical Specifications All specifications are based on 25C, Nominal Line and Full Load unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION Related condition MIN INPUT Turn on at Turn off at Input Over voltage Shutdown Turn off at Turn on at Operating Voltage Range Maximum Input Current No Load Input Current Input Current under “LOGIC OFF” Inrush Current Transient Rating Reflected Ripple Current OUTPUT Output Voltage Set point Output Voltage Regulation Over Load Over Line Over Temperature Output Voltage Ripple and Noise Basic Ripple Spikes P-P Output Current Ranges Output Current Limit Short Term Output Current Surge DYNAMIC CHARACTERISTICS Input Voltage Ripple Rejection Output Transient and Load Changes Load step / ' V Load step / ' V Recovery Time Turn on Delay Overshoot of Output Voltage EFFICIENCY @ 100% load @ 75% load @ 50% load @ 25% load TEMPERATURE CONSIDERATIONS Thermal Resistance Normal Convection 100 lfm 200 lfm 300 lfm 400 lfm Heatsink Considerations General Technical Data Switching Frequency Remote ON OFF Control Trimmablility Over Temperature Shutdown MTBF Rated Input Voltage Low Line 100% load 36 12uH / 33 uF input filter 23.76 NOM MAX 35 34 Volt DC Volt DC n/a n/a 48 3 94 1 1 6 Volt DC Volt DC Volt DC A mA mA A2 Sec mA 24 75 24.24 ± 0.2 ± 0.2 0.02 Rated Output Current Self Resetting 0 4.59 Unit Measured 70 100 5.4 Volt DC % % % / oC 200 200 4.17 6.2 mV mV A A A/sec 120 Hz 60 dB 50 to 75% 50 to 100% 75 to 50% 100 to 50 % To within 1% Rated Vo From Vin(nom) to 90% Vout (nom) Full Load Resistive 130 90 50 25 0 mV mV Psec msec % 91 92 92 87 % % % % X X o C/Watt C/Watt o C/Watt o C/Watt o C/Watt RTc-a o Available, Contact Factory 330 Fixed Acitve HIGH or LOW 21.6 26.4 125 PCB Temperature Bellcore TR-332 1.81 E6 KHz High/Low TTL Volt DC o C Hours Note: Positive Remote ON/OFF control is standard. To order negative logic Remote ON/OFF control add the suffix "R" to the part number. (888) 597-WALL www.wallindustries.com 2 WALL INDUSTRIES, INC. APPLICATION NOTES Rev. B MPQ48S24-100 Table 1: Pin Assignments Pin # 1 2 3 4 5 6 7 8 Pin Name +Vin Enable -Vin +Vout +SENSE TRIM -SENSE -Vout Function Positive Input Remote On/Off Negative Input Negative Output Negative Remote Sense Output Voltage Trim Positive Remote Sense Positive Output Comments If not used, leave open for standard unit, short to –Vin on ‘R’ units. If not used, short to –Vo. If not used, leave open. If not used, short to +Vo. Figure 1: Mechanical Dimensions (Open Frame - no suffix) 3 -Vin Ø.062 [1.57] 4 + Vout Ø.062 [1.57] 5 + SENSE Ø.040 [1.02] 6 TRIM Ø.040 [1.02] 7 -SENSE Ø.040 [1.02] 8 -Vout Ø.062 [1.57] 2 3 3 .11 [2.8] REF NOTES: WALL INDUSTRIES MODEL NAME XXXX EXETER, NH 03833 XXXX .30 [7.6] .45 [11.4] .15 [3.8] .60 [15.2] .00 [0.0] 4 5 6 7 8 .42 [10.7] 4 5 6 7 8 LABEL INTERFACE-PLANE Ø.040 [1.02] 1 2 .43 [10.8] Ø.062 [1.57] ON/OFF 1 INTERFACE-PLANE + Vin 2 .00 [0.0] 1.45 [36.8] .42 [10.7] PIN DESIGNATION PIN Ø 1 2.28 [57.9] .30 [7.6] .60 [15.2] .00 [0.0] .00 [0.0] Unit: inches [mm] .14 [3.6] .19 [4.7] 1. PIN TO PIN TOLERANCE: ± .010 [± 0.25] MEASURED AT STANDOFF FEATURE ONLY, DATUM-B. 2. PIN DIAMETER TOLERANCE OF : ± .005 [± 0.13] MEASUREMENT READING APPLIES TO AREA FROM INTERFACE-PLANE SURFACE DATUM-B TO END OF PIN ONLY. 3. UNLESS OTHERWISE SPECIFIED. .00 [0.0] INTERFACE-PLANE A .071± .005 [1.80± 0.13] STANDOFF DIMENSION Ø.040 [1.02] PINS ONLY 4X RECOMMENDED FINISHED RECEIVING PCB STAND-OFF HOLE Ø.052± .003 [1.32± 0.08] PIN-2 SHOWN FOR DIMENSIONS PIN END B .20 MIN [5.1 MIN] SEE NOTE-3 PIN LENGTH FROM INTERFACE-PLANE ONLY 2.00 [50.8] UNLESS OTHERWISE SPECIFIED ALL DIMENSONS ARE IN INCHES [ XX ] ARE IN MILLIMETERS APPLIED TOLERANCES: (Cased Option - "C" suffix) ANGLES= ± 1° .XX= ± .02[0.5] .XXX= ± .010[0.25] .60 [15.2] .00 [0.0] .45 [11.4] .51 [13.0] 2.37 [60.2] .30 [7.6] DOT DENOTES PIN-1 .15 [3.8] .00 [0.0] .30 [7.6] .60 [15.2] THIRD ANGLE PROJECTION .00 [0.0] DO NOT SCALE DRAWING INTERPRET DIMENSION AND TOLERANCE PER ASME Y14.5M - 1994 .00 [0.0] .112(NO:4)-40UNC-2B 4X MAX SCREW DEPTH .100 FROM SURFACE-A 4X MAX APPLIED RECIEVING TORQUE: 6.0 lbf in [ 0.68 N m] Ø.062 [1.57] + SENSE Ø.040 [1.02] 6 TRIM Ø.040 [1.02] 7 -SENSE Ø.040 [1.02] 8 -Vout Ø.062 [1.57] LABEL NOTES: 1. PIN TO PIN TOLERANCE: ± .010 [± 0.25] MEASURED AT STANDOFF FEATURE ONLY, DATUM-B. 2. PIN DIAMETER TOLERANCE OF : ± .005 [± 0.13] MEASUREMENT READING APPLIES TO AREA FROM INTERFACE-PLANE SURFACE DATUM-C TO END OF PIN ONLY. 3. UNLESS OTHERWISE SPECIFIED. 4. THERMAL TRANSFER PLATE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0, PER: QQA 250/2 WITH BLACK SOFT SULFURIC ANODIZE FINISH. 1.860 [47.24] SEE NOTE-4 -A- .19 [4.7] .005 .19 [4.7] .00 [0.0] INTERFACE-PLANE C .071± .005 [1.80± 0.13] STANDOFF DIMENSION Ø.040 [1.02] PINS ONLY 4X RECOMMENDED FINISHED RECEIVING PCB STAND-OFF HOLE Ø.052± .003 [1.32± 0.08] PIN-2 SHOWN FOR DIMENSIONS (888) 597-WALL .47 [11.9] INTERFACE-PLANE + Vout 5 3 3 4 5 6 7 8 .26 [6.5] 4 2 .60 [15.1] Ø.062 [1.57] 4 5 6 7 8 1.030 [26.16] .41 [10.4] -Vin XXXX Ø.040 [1.02] 3 Ø.062 [1.57] XXXX ON/OFF MODEL NAME + Vin 2 2 WALL INDUSTRIES 1 1 1 INTERFACE-PLANE .47 [11.9] PIN DESIGNATION PIN Ø 1.54 [39.1] .26 [6.5] PIN END 2.00 [50.8] www.wallindustries.com B .20 MIN [5.1 MIN] SEE NOTE-3 PIN LENGTH FROM INTERFACE-PLANE ONLY 3 WALL INDUSTRIES, INC. APPLICATION NOTES Rev. B MPQ48S24-100 Mechanical Dimensions (Heatsink Option - "HS" suffix) Unit: inches [mm] .60 [15.2] .00 [0.0] .30 [7.6] .15 [3.8] .51 [13.0] 2.37 [60.2] .45 [11.4] DOT DENOTES PIN-1 .00 [0.0] .00 [0.0] .00 [0.0] .30 [7.6] .60 [15.2] .112(NO:4)-40UNC-2B 4X MAX SCREW DEPTH .100 FROM SURFACE-A 4X MAX APPLIED RECIEVING TORQUE: 6.0 lbf in [ 0.68 N m] XXXX 3 1 3 .85 + .04 21.5 + 1.0 -0.5 -.02 .60 [15.1] .41 [10.4] .47 [11.9] 4 5 6 7 8 1.860 [47.24] LABEL INTERFACE-PLANE 4 5 6 7 8 2 -A- .26 [6.5] XXXX XXXXXXXXXXXHS WALL INDUSTRIES 2 INTERFACE-PLANE 1 1.54 [39.1] 1.030 [26.16] .26 [6.5] .47 [11.9] 1 4 5 6 7 8 2 3 NOTES: 1. PIN TO PIN TOLERANCE: ± .010 [± 0.25] MEASURED AT STANDOFF FEATURE ONLY, DATUM-B. 2. PIN DIAMETER TOLERANCE OF : ± .005 [± 0.13] MEASUREMENT READING APPLIES TO AREA FROM INTERFACE-PLANE SURFACE DATUM-C TO END OF PIN ONLY. 3. STANDARD PIN LENGTH UNLESS OTHERWISE SPECIFIED. 4. THERMAL TRANSFER PLATE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0, PER: QQA 250/2 WITH BLACK SOFT SULFURIC ANODIZE FINISH. SEE NOTE-4 .005 PIN DESIGNATION PIN Ø .19 [4.7] A .00 [0.0] INTERFACE-PLANE C .071± .005 [1.80± 0.13] STANDOFF DIMENSION Ø.040 [1.02] PINS ONLY 6X RECOMMENDED FINISHED RECEIVING PCB STAND-OFF HOLE Ø.052± .003 [1.32± 0.08] PIN END B .20 MIN [5.1 MIN] SEE NOTE-3 PIN LENGTH FROM INTERFACE-PLANE ONLY 2.00 [50.8] .19 [4.7] (888) 597-WALL www.wallindustries.com 1 + Vin Ø.040 [1.02] 2 ON/OFF Ø.040 [1.02] 3 -Vin Ø.040 [1.02] 4 + Vout Ø.062 [1.57] 5 + SENSE Ø.040 [1.02] 6 TRIM Ø.040 [1.02] 7 -SENSE Ø.040 [1.02] 8 -Vout Ø.062 [1.57] 4 WALL INDUSTRIES, INC. APPLICATION NOTES Rev. B MPQ48S24-100 OUTPUT POWER (WATTS) DERATING CURVE 120 100 80 60 40 20 0 0 20 40 60 80 AMBIENT TEMPERATURE (DEG. C.) POWER DISSIPATION (WATTS POWER DISSIPATION VS OUTPUT CURRENT 15 Low Line 13 11 Nominal Line 9 7 5 High Line 3 1 0.00 0.43 0.85 1.28 1.70 2.13 2.55 2.98 3.40 3.83 4.25 OUTPUT CURRENT (AMPS) EFFICIENCY (%) EFFICIENCY VS OUTPUT CURRENT 95 90 85 80 75 70 65 60 55 50 45 40 0.00 Low Line Nominal Line High Line 0.43 0.85 1.28 1.70 2.13 2.55 2.98 3.40 3.83 4.25 OUTPUT CURRENT (AMPS) (888) 597-WALL www.wallindustries.com 5 WALL INDUSTRIES, INC. Rev. B APPLICATION NOTES MPQ48S24-100 TYPICAL OUTPUT RIPPLE 50mV/div, 1uS/div, full load, 36Vin 10uF // 0.1uF decoupling caps room temp TYPICAL OUTPUT RIPPLE 50mV/div, 1uS/div, full load 75Vin 10uF // 0.1uF decoupling cap room temp TYPICAL INPUT RIPPLE CURRENT 2mA/div, 1uS/div, full load 48Vin at room temp with a 12 uH / 33 uF input filter TYPICAL TRANSIENT RESPONSE 50mV/div, 200uS/div, 50% full load to 100% full load 48Vin room temp TYPICAL RISE TIME & TURN-ON DELAY USING LOGIC ENABLE 2V/div, 4mS/div (Vout), 1V/div 4mS/div (logic enable) 36Vin, full load at room temp TYPICAL RISE TIME & TURN-ON DELAY WITH Vin 0-48V 1V/div, 4mS/div (Vout), 10V/div, 4mS/div (Vin) at room temp (888) 597-WALL www.wallindustries.com 6 WALL INDUSTRIES, INC. APPLICATION NOTES Rev. B MPQ48S24-100 Ordering Information: Part Number Example: MPQ 48 S 24 – 100 R Series Designation Nominal Input Voltage Single Output Nominal Output Voltage Maximum Output Power Options R C HS Leave Blank for no Options Active Low Case Heatsink Company Information: Wall Industries, Inc. has created custom and modified units for over 40 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2000 certification is just one example of our commitment to producing a high quality, well documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: Toll Free: Fax: E-mail: Web: Address: (888) 597-WALL (603)778-2300 (888)587-9255 (603)778-9797 [email protected] www.wallindustries.com 5 Watson Brook Rd. Exeter, NH 03833 www.wallindustries.com 7