DCDC 75350 Watts QSB Series xppower.com * Wide Input Range * Industry Standard Packages * 40 C to +100 C Operating Temperature * High Power Density * Base Plate Cooled * Remote On/Off & Remote Sense * 3 Year Warranty Specification Input Input Voltage Range Input Current Input Reverse Voltage Protection Input Filter Undervoltage Lockout Input Surge General * See tables * See tables * None Efficiency Isolation Voltage * Pi network * QSB75-150: 24 Vin: - turn on 8.8 V, turn off 8.0 V for 9-36 V, QSB200: 24 Vin -turn on 9.6 V, turn off 8.8 V, QSB75-200: 48 Vin - turn on 17.0 V, turn off 16.0 V, QSB350: 24 Vin - turn on 17.0 V, turn off 16.0 V, QSB350: 48 Vin - turn on 35.0 V, turn off 33.0 V * 24 Vin: 50 VDC for 100 ms 48 Vin: 100 VDC for 100 ms Isolation Resistance Isolation Capacitance Output * 10%, see application notes * 1.5% max * 0.2% max measured from high line to low line Load Regulation * 0.2% max measured from 0-100% load Transient Response * 5% max deviation, recovery to within 1% in 500 s, 25% step load change Ripple & Noise * 3.3 & 5 V models: 100 mV pk-pk 12 & 15 V models: 150 mV pk-pk 24 V & 28 V models: 280 mV max pk-pk 20 MHz bandwidth (see note 1) Overvoltage Protection * 115-140% Short Circuit Protection * Continuous Thermal Shutdown * Case temperature >105 C Temperature * 0.03%/C Coefficient Current Limit * 110-140% nominal output for 75 & 150 W 110-160% nominal output for 100 W 110-150% nominal output for 200 W 105-140% nominal output for 350 W Remote On/Off * See notes 2 & 3 Remote Sense * Compensates up to 10% of Vout nominal, total of output trim and remote sense Output Voltage Trim Initial Set Accuracy Line Regulation Switching Frequency Power Density MTBF * See tables * 1500 VDC Input to Output 1500 VDC Input to Case 1500 VDC Output to Case * 107 * QSB75-200: 100 pF typical, QSB350: 1000 pF typical * QSB75: 300 kHz typical QSB100, 150 & 200: 250 kHz typical QSB350 (3V3 & 5 V): 300 kHz typical QSB350 (12, 24 & 28 V): 330 kHz typical * QSB75: 45.4 W/in3, QSB100: 60.5 W/in3, QSB150: 57.2 W/in3, QSB200: 70.3 W/in3, QSB350: 123.0 W/in3 * QSB75 & 100: 730 kHrs QSB150 & 200: 1 MHrs QSB350: 658 kHrs typical to MIL-HDBK-217F at 25 C, GB Environmental Operating Base Plate Temperature Storage Temperature Operating Humidity Cooling * -40 C to +100 C, see derating curves * -55 C to +105 C * Up to 90% non-condensing * Base plate cooled, see derating curves EMC & Safety Emissions ESD Immunity Radiated Immunity EFT/Burst Surge Conducted Immunity Safety Approvals * EN55022, level A conducted with external components, see test reports for further details * EN61000-4-2, level 2, Perf Criteria B * EN61000-4-3, 3 V/m, Perf Criteria A * EN61000-4-4, level 1, Perf Criteria A* * EN61000-4-5, level 1, Perf Criteria A* * EN61000-4-6, 3 V rms Perf Criteria A * QSB150 & QSB200: UL60950-1 * Recommended protection SMCJ40A for 24 Vin, SMCJ78A for 48 Vin Input Voltage Output Voltage Output Current 3.3 V 5.0 V 9-36 VDC (24 V nominal) 18-75 VDC (48 V nominal) 9-36 VDC (24 V nominal) 18-75 VDC (48 V nominal) Input Current(4) Efficiency Model Number(3) 2.04 A 81.0% QSB7524S3V3 2.98 A 84.0% QSB7524S05 50 mA 3.64 A 86.0% QSB7524S12 5.00 A 50 mA 3.64 A 86.0% QSB7524S15 24.0 V 3.12 A 50 mA 3.63 A 86.0% QSB7524S24 3.3 V 12.00 A 30 mA 1.10 A 82.0% QSB7548S3V3 5.0 V 12.00 A 30 mA 1.47 A 85.0% QSB7548S05 12.0 V 6.25 A 30 mA 1.82 A 86.0% QSB7548S12 15.0 V 5.00 A 30 mA 1.80 A 87.0% QSB7548S15 24.0 V 3.12 A 30 mA 1.80 A 87.0% QSB7548S24 3.3 V 30.00 A 120 mA 4.80 A 86.0% QSB10024S3V3 5.0 V 20.00 A 120 mA 4.82 A 86.5% QSB10024S05 12.0 V 8.30 A 80 mA 4.80 A 86.5% QSB10024S12 15.0 V 6.70 A 80 mA 4.84 A 86.5% QSB10024S15 24.0 V 4.17 A 80 mA 4.79 A 87.0% QSB10024S24 3.3 V 30.00 A 60 mA 2.37 A 88.0% QSB10048S3V3 5.0 V 20.00 A 60 mA 2.37 A 88.0% QSB10048S05 12.0 V 8.30 A 30 mA 2.36 A 88.0% QSB10048S12 15.0 V 6.70 A 30 mA 2.38 A 88.0% QSB10048S15 24.0 V 4.17 A 30 mA 2.37 A 88.0% QSB10048S24 No Load Full Load 12.00 A 50 mA 12.00 A 50 mA 12.0 V 6.25 A 15.0 V Notes 1. Ripple & noise is measured with a 10 F tantalum capacitor and 1.0 F ceramic capacitor across output. 2. Logic compatibility: Ref to -ve input. Module On = open circuit. Module Off = <0.8 VDC. 3. Add suffix `N' to the model number to receive the unit with negative logic Remote On/Off. 4. Input current specified at 24 V for 9-36 VDC and 48 V for 18-75 VDC models. Mechanical Details 2.28 (57.90) 2.00 (50.80) 1.45 (36.8) 0.60 (15.24) 1.03 (26.2) 1.14 (28.96) 3 2 4 5 6 7 8 BOTTOM VIEW 1 0.73 (18.42) Mounting hole diameter: 0.126 (3.2) clearance hole 0.60 (15.24) 0.30 (7.62) 1.86 (47.20) o 0.040 (1.02) Pins 1,2,3,5,6,7 0.16 (4.1) min. Pin 1 2 3 4 5 6 7 8 PIN CONNECTIONS Function +Vin Remote On/Off -Vin -Vout -Sense Trim +Sense +Vout Notes o 0.059 (1.50) Pins 4,8 1. Dimensions are in inches (mm) 2. Tolerances: X.XX = 0.02 (X.X = 0.5) X.XXX = 0.01 (X.XX = 0.25) 3. Weight: 0.15 lbs (66 g) approx 0.50 (12.70) Thermal Resistance Information Power Dissipated ,Pd (W) Derating Curve 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Maximum Power Dissipation vs Ambient Temperature and Air Flow without heatsink Natural Convection 20 ft./min. (0.1 m/s) 100 ft./min. (0.5 m/s) 200 ft./min. (1.0 m/s) 300 ft./min. (1.5 m/s) 400 ft./min. (2.0 m/s) 0 10 20 30 40 50 60 70 Ambient Temperature ,Ta (C) 80 90 100 Air Flow Rate Natural Convection 20 ft. / min (0.1 ms) 100 ft./min (0.5 ms) 200 ft./min (1.0 ms) 300 ft./min (1.5 ms) 400 ft./min (2.0 ms) Typical Rca 10.1 C/W 8.0 5.4 4.4 3.4 Rca = Thermal resistance case to ambient C/W C/W C/W C/W DCDC QSB75/100 Models and Ratings DCDC QSB150350 Models & Ratings Input Voltage Output Voltage Input Current(4) Output Current No Load Full Load Efficiency Model Number(3) 9-36 VDC (24 V nominal) 3.3 5.0 12.0 15.0 24.0 V V V V V 30.00 30.00 12.50 10.00 6.50 A A A A A 200 200 100 100 100 mA mA mA mA mA 4.75 7.19 7.10 7.19 7.34 A A A A A 87.0% 87.0% 88.0% 87.0% 88.0% QSB15024S3V3 QSB15024S05 QSB15024S12 QSB15024S15 QSB15024S24 18-75 VDC (48 V nominal) 3.3 5.0 12.0 15.0 24.0 V V V V V 30.00 30.00 12.50 10.00 6.50 A A A A A 100 100 50 50 50 mA mA mA mA mA 2.34 3.47 3.44 3.47 3.61 A A A A A 88.0% 90.0% 91.0% 90.0% 90.0% QSB15048S3V3 QSB15048S05 QSB15048S12 QSB15048S15 QSB15048S24 10-36 VDC (24 V nominal) 3.3 5.0 12.0 15.0 24.0 V V V V V 50.00 40.00 16.70 13.30 8.30 A A A A A 150 150 100 100 100 mA mA mA mA mA 7.90 9.58 9.71 9.67 9.54 A A A A A 87.0% 87.0% 86.0% 86.0% 87.0% QSB20024S3V3 QSB20024S05 QSB20024S12 QSB20024S15 QSB20024S24 18-75 VDC (48 V nominal) 3.3 5.0 12.0 15.0 24.0 V V V V V 40.00 40.00 16.70 13.30 8.30 A A A A A 80 80 60 60 60 mA mA mA mA mA 3.13 4.69 4.74 4.72 7.72 A A A A A 88.0% 89.0% 88.0% 88.0% 88.0% QSB20048S3V3 QSB20048S05 QSB20048S12 QSB20048S15 QSB20048S24 18-36 VDC (24 V nominal) 3.3 5.0 12.0 24.0 28.0 48.0 V V V V V V 70.0 70.0 29.2 14.6 12.5 7.3 A A A A A A 130 250 220 40 50 60 mA mA mA mA mA mA 10.94 A 16.29 A 15.96 A 16.22 A 16.03 A 16.22 A 88.0 % 89.5 % 91.5% 90.0% 91.0% 90.0% QSB35024S3V3 QSB35024S05 QSB35024S12 QSB35024S24 QSB35024S28(5) QSB35024S48(5) 36-75 VDC (48 V nominal) 3.3 5.0 12.0 24.0 28.0 48.0 V V V V V V 70.0 70.0 29.2 14.6 12.5 7.3 A A A A A A 80 120 100 40 30 60 mA mA mA mA mA mA 5.41 8.01 7.89 7.98 7.88 7.93 89.0% 91.0% 92.5% 91.5% 92.5% 92.0% QSB35048S3V3 QSB35048S05 QSB35048S12 QSB35048S24 QSB35048S28(5) QSB35048S48(5) A A A A A A Notes 1. Ripple & noise is measured with a 10 F tantalum capacitor and 1.0 F ceramic capacitor across output. 2. Logic compatibility: Ref to -ve input. Module On = open circuit. Module Off = <0.8 VDC. 3. Add suffix `N' to the model number to receive the unit with negative logic Remote On/Off. 4. Input current specified at 24 V for 10-36 VDC models and 48 V for 18-75 VDC models. 5. Add an external capacitor of 100 F minimum to maintain specified regulation. Mechanical Details 1.14 (29.0) Mounting hole diameter: 0.126 (3.2) clearance hole 5 4 1.40 (35.6) 2.00 (50.8) 0.18 min. (4.6) Pin 1 2 3 4 5 6 7 8 9 6 3 0.60 (15.2) 1.20 (30.5) o 0.08 (2.03) Pins 1,4, 5&9 BOTTOM VIEW 7 2 8 1 9 2.40 (61.0) o 0.04 (1.02) Pins 2,3, 6,7 & 8 1.90 (48.3) 0.52 (13.2) 2.28 (57.9) SIDE VIEW Notes 1. Dimensions are in inches (mm) 2. Tolerances: X.XX = 0.02 (X.X = 0.5) X.XXX = 0.01 (X.XX = 0.25) 3. Weight: 0.25 lbs (114 g) approx PIN CONNECTIONS Function +Vin Remote On/Off Case -Vin -Vout -Sense Trim +Sense +Vout Derating Curve Maximum Power Dissipation vs Ambient Temperature and Air Flow without heatsink 50 Natural Convection 20 ft./min. (0.1 m/s) 100 ft./min. (0.5 m/s) 45 Power Dissipated ,Pd (W) 40 Air Flow Rate Natural Convection 20 ft. / min (0.1 ms) 100 ft./min (0.5 ms) 200 ft./min (1.0 ms) 300 ft./min (1.5 ms) 400 ft./min (2.0 ms) 500 ft./min (2.5 ms) 600 ft./min (3.0 ms) 700 ft./min (3.5 ms) 800 ft./min (4.0 ms) 200 ft./min. (1.0 m/s) 35 30 300 ft./min. (1.5 m/s) 25 400 ft./min. (2.0 m/s) 20 500 ft./min. (2.5 m/s) 15 600 ft./min. (3.0 m/s) 10 700 ft./min. (3.5 m/s) 5 Typical Rca 7.12 C/W 6.21 5.17 4.29 3.64 2.96 2.53 2.37 2.19 C/W C/W C/W C/W C/W C/W C/W C/W Rca = Thermal resistance case to ambient 800 ft./min. (4.0 m/s) 0 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ,Ta (C) Application Notes Output Voltage Trim QSB75 & QSB150 Series Voltage trim up Connect trim resistor Rtrim between Trim pin and -Sense pin. R1 Vr - Vf R2R2 + R3 R trim up = Vdes - Vnom - R2 x R3 (k) R2 + R3 Voltage trim down Connect trim resistor Rtrim between Trim pin and +Sense pin R trim down = R1 x (Vdes - Vr) Vnom - Vdes - R2 (k) Where: R trim up/down is the external resistor in k. Vnom is the nominal output voltage. Vdes is the desired output voltage. R1, R2, R3 and Vr are internal to the unit and are defined in the table below. Output Voltage (V) 3.3 V 5.0 V 12.0 V 15.0 V 24.0 V R1(k) 3.00 2.32 9.10 12.0 20.0 R2 (k) 12.0 3.3 51.0 56.0 100.0 Vr (V) 1.24 2.5 2.5 2.5 2.5 R3 (k) 4.3 0.0 5.1 8.25 7.5 Vf (V) 0.46 0.0 0.46 0.46 0.46 Output Voltage Trim QSB100, QSB200 & QSB350 Series Voltage trim down - Connect trim resistor Rtrim between Trim pin and -Sense pin R trim down = 511 - 10.22 k % Voltage trim up - Voltage trim up, Connect trim resistor Rtrim between Trim pin and +Sense pin. R trim up = Where: Where: %= %= Vnom - Vdes Vnom 5.11 Vnom (100 + %) 511 - 10.22 k k x % % Vdes - Vnom Vnom x 100 x 100 Value k QSB100/200 1.225 QSB350 1.24 31-March-14 DCDC QSB150350 Thermal Resistance Information