SPW48S24-100 WALL | Alldatasheet

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(888) 597-WALL www.wallindustries.com 1 of 13 TECHNICAL DATASHEET Rev. A SPW48S24-100 100W DC-DC Converter 18-75 Vdc Input 24Vdc Output at 4.16A Half-Brick Package Features:

  • 84% Efficient at Full Load
  • Fast Transient Response
  • Operation to No Load
  • Output Trim +/-10%
  • Remote ON/OFF (Active High/Low)
  • Remote Sense Compensation
  • Delivers a Continuous 50W at 25°C with No Air
  • Low Output Ripple
  • Fixed Switching Frequency
  • Output Over Current Protection
  • Output Short Circuit Protection
  • Over Temperature Protection
  • 1500 V Isolation
  • 100% Burn In
  • Test Board Available
  • UL 1950 Listed – CE Mark Description: The SPW series is a high-density ha lf brick converter that incorporates the desired features required in today’s demanding applications. When performance, reliability, and low cost are needed, the SPW series delivers.

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 2 of 13 Technical Specifications MMooddeell NNoo.. SPW48S24-100 All specifications are based on 25o C, Nominal Input Voltage and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION Related condition Min Nom Max Unit Switching Frequency - 350 - KHZ INPUT (Vin) Operating Voltage Range 18 48 75 Vdc UVLO Turn On at 16.5 17 17.5 Vdc UVLO Turn Off at 15.5 16 17 Vdc UVLO Hysterisis - 1 - Vdc Maximum Input Current (Graph 3) Low Line - 7.0 - A No Load Input Current (Graph 5) No Load - 0.060 - A Input Current under “Remote Off” (Graph 6) - 1 - mA Reflected Ripple Current (Photo 2, Fig. 4) With L-C filter as shown in Fig. 4. - 20 - mA Input Surge Voltage 100 mS - - 100 Vdc EFFICIENCY (Graph 1) Io=4.16A - 84 - % OUTPUT (Vo) Voltage Set Point ±Sense shorted to ±Vout 23.76 -1% 24.0 24.24 +1% Vdc Voltage Adjustment (Table 1) Max Output limited to 100W 21.6 -10% 5.0 26.4 +10% Vdc Load Regulation ±Sense shorted to ±Vout - 0.05 0.1 % Line Regulation ±Sense shorted to ±Vout - 0.05 0.1 % Temperature Drift - 0.01 0.02 % / oC Remote Sense Compensation Max Output limited to 100W (as measured at the converter output pins) - - 0.5 Vdc Ripple (Photo 8) 0.1uF Ceramic & 10uF Tantalum - 40 360 mV p-p Spikes (Photo 8) 0.1uF Ceramic & 10uF Tantalum - 40 360 mV p-p Current 0 - 4.167 A Current Limit Power Limited-Dependent upon SENSE compensation and TRIM adjustment - 5.83 - A Over Voltage Limit 28.5 30 31.5 Vdc DYNAMIC RESPONSE Load step / ∆ V (Photo 7) 50% to 100% Io - 400 - mV Recovery Time (Photo 7) Recovery to within 1% Nominal Vout - 0.1 - mS Turn On Delay (Photo 5) From Vin (min) to Vout (nom) - 250 - mS Turn On Overshoot (Photo 3,5) Full Load Resistive - 0.0 - % Hold Up Time (Photo 4,6) From Vin (min) to V ULVO_Turn_Off 0 - - mS REMOTE ON/OFF Active High or Active Low (Add an ‘R’ to the end of the PN ie: SPW48S24-100R) Remote ON – Active High Min High to Enable 2.5 - - Vdc Remote OFF – Active High Max Low to Disable - - 1.3 Vdc Remote ON/OFF pin Floating – Active High Over Operating Voltage Range 2.0 - 6.3 Vdc ION/OFF Sink to pull low – Active High VON/OFF =0V, Vin=75V - - 1.0 mA Remote ON – Active Low Max Low to Enable - - 0.8 Vdc Remote OFF – Active Low Min High to Disable 2.0 - - Vdc Remote ON/OFF pin Floating – Active Low Over Operating Voltage Range 3.0 - 5.4 ION/OFF Sink to pull low – Active Low VON/OFF =0V, Vin=75V - - 1 mA ION/OFF Source to drive high – Active High or Low - - - mA Turn On Delay – (Photo 3) Enabled - 240 - mS Turn Off Delay – (Photo 4) Disabled - - 10 uS ISOLATION Input-Output 1 minute 1500 - - Vdc Isolation Resistance 10 - - GΩ Isolation Capacitance - 2200 - pF THERMAL Ambient (Graph 2) Max. Ambient limited by Derating Curves (Graph 2) -40 25 Graph 2 oC Over Temperature Protection - 110 - oC Storage Temperature -55 - 125 oC MTBF Calculated Using Bellcore TR-332 Method 1 case 3 2,485,707 Hours MECHANICAL See Figure 1 Weight - 100 - g

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 3 of 13 Figure 1: Mechanical Dimensions

voltage falls below the UVLO turn-off limit. will ‘hiccup’. The converter output will recover once the short or over current fault is removed. converter will automatically recover once the over temperature condition is removed. capacitor and the input to the converter without a termination capacitor (“Cin” Fig. 4). transient peak-to-peak voltage deviation. desired to use the Remotes Sense feature, the –Sense and +Sense pins should be shorted to the -Vout and +Vout pins respectively. Shorting the Sense pins to the Vout pins will reduce the voltage drops through the converter pins. It is required that the input to the converter be supplied with a maximum 10 A, 250 V rated fuse. option ‘R’ at the end of the part number). Active-High means that a logic high or open at the ENABLE pin will turn ON the supply. on an Active-Low supply, short the Enable pin to –Vin. Figure 2. Remote (L/E)

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 5 of 13 Output Voltage Trim The following information is provided to allow quick calculation of the trim resistor value for a desired output voltage. The general procedure for calculating a trim resistor is as follows: 1. Determine the desired output voltage (Vo) 2. Select Equation. (Trim Low/Trim High) 3. Use the data in Table 1 to complete the equation. 4. Evaluate. In order to trim low use Equation 1 and Table 1 to calculate resistor RTL for the desired output voltage. Vo - Desired output voltage. All resistor values in K ohms. In order to trim high use Equation 2 and Table 1 to calculate resistor RTH for the desired output voltage. Vo - Desired output voltage. All resistor values in K ohms. MODEL (Output Voltage) RH OHMS) RLIM OHMS) RL OHMS) VREF (VOLTS) Table 1 : Trim Low/High Data Table. Schematic 1: Trim Low Equation 1: Trim Low LIM REFoRR V REFo L RVV VVRT HL REF −⋅− −= ))(()( Schematic 2: Trim High Equation 2: Trim High () () RT V RH REF VV R V R LIMoR E F H REF L  −−

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 6 of 13 Note: Output trim +/- 10% max. Graph 1: SPW48S24-100 Efficiency vs. Output Current 70% 75% 80% 85% 90% I o (A) Effiency (%) Vin=36V Vin=48V Vin=60V Vin=75V Graph 2: SPW48S24-100 Max Ambient vs. Io 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 - 4 0 - 3 0 - 2 0 - 1 00 1 02 03 04 05 06 07 0 Ambient (°C) Io (A)

400 LFM

300 LFM

200 LFM

100 LFM

0 LFM

Note: When trimming the output high, Io vs. Ambient is derated by power. ie: from Graph 2, find the maximum current at the desired ambient and airflow, and multiply this current by the nominal voltage (24V) to get the maximum power. Divide this power by the desired trimmed high voltage to get the maximum current at that ambient. When trimming low, the maximum current stays the same as shown in graph 2.

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 7 of 13 Graph 3: SPW48S24-100 Input Current vs. Input Voltage Graph 4: SPW48S24-100 Power Dissipation vs. Input Voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 15 20 25 30 35 40 45 50 55 60 65 70 75 V in(V) Iin (A) Io=0A Io=1.04A Io=2.08A Io=3.12A Io=4.16A 15 20 25 30 35 40 45 50 55 60 65 70 75 V in(V) Pdissipation (W) Io=0A Io=1.04A Io=2.08A Io=3.12A Io=4.16A Graph 5: SPW48S14-100 No Load Input Current and Power Dissipation vs. Input Voltage Graph 6: SPW48S24-100 "Remote Off" Input Current and Power Dissipation vs. Input Voltage 0.00 0.05 0.10 0.15 0.20 0.25 15 20 25 30 35 40 45 50 55 60 65 70 75 V in(V) Iin (A) Pdissipation (W) Input Current Power Dissipation 0.0 0.5 1.0 1.5 2.0 2.5 3.0 15 20 25 30 35 40 45 50 55 60 65 70 75 Vin(V) Iin (mA) 100 150 200 250 Pdissipation (mW) Input Current Power Dissipation Note: Voltage measurements taken where the output pins are soldered into test board.

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 8 of 13 Photo 1: Input Ripple Voltage(1) and Current-500mA/Div.(2). Vin=48V, Iout = 4.16A Photo 2: Input Ripple Voltage(1) and Current-20mA/Div. (2). Vin=48V, Iout = 4.16A With an L-C filter across the Input (Fig. 4) Photo 3: Remote Turn ON (Chan 1=Enable, Chan 2=Vout) Vin=48V, Iout = 4.16A Photo 4: Remote Turn OFF (Chan 1=Enable, Chan 2=Vout) Vin=48V, Iout = 4.16A

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 9 of 13 Photo 5: Normal Turn ON (Chan 1=Vin, Chan 2=Vout) Vin=48V, Iout = 4.167A Photo 6: Normal Turn OFF (Chan 1=Vin, Chan 2=Vout) Vin=48V, Iout = 4.167A Photo 7: Transient Response 50% to 100% Vin=48V, Iout = 4.167A to 2.08A Cout=0.1uF Ceramic + 10uF Tantalum Photo 8: Output Voltage Ripple (20 MHz BW) Vin=48V, Iout= 4.16A Cout=0.1uF Ceramic + 10uF Tantalum

TECHNICAL DATASHEET WALL INDUSTRIES, INC. Rev A SPW48S24-100 (888) 597-WALL www.wallindustries.com Page 13 of 13 Ordering Information: 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 it's 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: (603)778-2300 Toll Free: (888)587-9255 Fax: (603)778-9797 E-mail: sales@wallindustries.com Web: www.wallindustries.com Address: 5 Watson Brook Rd. Exeter, NH 03833 Part Number Example: SPW 48 S 24 –100 R Options Leave Blank for no Options R Active Low Enable Series Designation Nominal Input Voltage Single Output Nominal Output Voltage Maximum Output Power