QSB30048S12

QSB300 DC-DC Power Supplies 300 Watts • Regulated Single Output • 4:1 Input Range • Industry Standard Half Brick Package • Up to 90% Efficiency • Baseplate-cooled • -40 °C to +100 °C Operating Temperature • Remote On/Off & Remote Sense • 3 Year Warranty This specification describes the features and functions of QSB300 series of isolated DC-DC Converters. These are highly efficient, reliable and compact, high power density, single output DC/DC converters. The modules can be used in a wide range of applications from telecommunications, data communications, wireless communications to servers. Dimensions: QSB: 2.4 x 2.28 x 0.5” (60.9 x 57.9 x 12.7 mm) Models & Ratings Input Voltage Output Current Nom. Peak(4) Output Voltage 24V (9-36V) 48V (18-75 V) Input Current No Load Full Load Efficiency(3) Max. Capacitive Load Model Number(1) 5.0 V 12.0V 60.0A 25.0A 70.00A 29.16A 200mA 200mA 14.21A 13.89A 88.0% 90.0% 10000 μF 10000 μF QSB30024S05(6) QSB30024S12(6) 24.0V 28.0V 48.0V 12.5A 10.7A 6.25A 14.58A 12.50A 7.29A 100mA 100mA 100mA 14.21A 14.11A 14.37A 88.0% 88.0% 87.0% 4700 μF 4700 μF 2200 μF QSB30024S24(5) QSB30024S28(5) QSB30024S48(5) 5.0V 12.0V 24.0V 28.0V 48.0V 60.0A 25.0A 12.5A 10.7A 6.25A 70.00A 29.16A 14.58A 12.50A 7.29A 100mA 100mA 80mA 80mA 80mA 6.94A 6.94A 6.98A 6.94A 7.02A 90.0% 90.0% 89.0% 90.0% 89.0% 10000 μF 10000 μF 4700 μF 4700 μF 2200 μF QSB30048S05 QSB30048S12 QSB30048S24 QSB30048S28 QSB30048S48(5) Notes 1. Add suffix ‘N’ to the model number to receive the unit with negative logic Remote On/Off. 2. Minimum of 1000μF for 24Vin and 220μF for 48 Vin required on input. 3. Measured at nominal input voltage. 4. Peak Current is for max duration of 3s with 10% duty cycle. Average output power not to exceed 300W. 5. Models require minimum 220 μF capacitor across output rails to maintain regulation. 6. QSB30025S05 requires minimum 470μF and QSB30024S12 requires minimum 330μF across output rails to maintain regulation. Mechanical Details 1.14 (29.0) Mounting hole diameter: 0.126 (3.2) clearance hole 1.40 (35.6) 2.00 (50.8) 1 ø 0.08 (2.03) Pins 1,4, 5&9 4 5 3 6 0.60 (15.2) BOTTOM VIEW 7 2 8 1 9 0.18 min. (4.6) Pin 1 2 3 4 5 6 7 8 9 1.20 (30.5) 2.40 (61.0) ø 0.04 (1.02) Pins 2,3, 6,7 & 8 PIN CONNECTIONS Function +Vin Remote On/Off Case -Vin -Vout -Sense Trim +Sense +Vout Notes 1.90 (48.3) 0.50 (12.7) 2.28 (57.9) SIDE VIEW www.xppower.com 1. All dimensions are in inches (mm) 2. Weight: 0.25 lbs (114 g)approx 3. Tolerances: X.XX = ±0.02 (X.X = ±0.5) X.XXX = ±0.01 (X.XX = ±0.25) QSB300 DC-DC Power Supplies Input Characteristic Input Voltage Minimum Typical 9/18 Maximum Units Notes & Conditions 36/75 VDC 24 V/48 V Input Current See Models and Ratings table Input Reverse Voltage Protection None Input Filter Pi Network Undervoltage Lockout Turn On: 8.8 Turn On: 17.0 Turn Off: 8.0 Turn Off: 16.0 50 VDC for 100 ms 100 VDC for 100 ms Input Surge V 24 Vin 48 Vin V 24 Vin 48 Vin Output Characteristic Minimum Output Voltage Trim Typical Maximum ±10 Initial Set Accuracy ±1.5 Start Up Time 120 Units Notes & Conditions % See Application Notes % At full load ms Line Regulation ±0.2 % Measured from high line to low line Load Regulation ±0.2 % Measured from 0-100% load 5 % Deviation, recovery to within 1% in 500 μs, 25% step load change Transient Response 100 120 280 480 Ripple & Noise Overvoltage Protection mV pk-pk 115 140 % Short Circuit Protection Thermal Shutdown Continuous Case temperature >105 °C typical Temperature Coefficient Current Limit 3.3 & 5 V models 12 V models 24 & 28 V models 48 V models, 20 MHz bandwidth (see note 1) ±0.03 %/°C 120 140 % Nominal Output Notes 1. Output Ripple and Noise measured with 10 μF tantalum and 1 μF ceramic capacitor across output. General Characteristic Efficiency Minimum Typical 87 Isolation: Input to Output Input to Case Output to Case Isolation Resistance Maximum Units 90 % 1500 VDC 1500 VDC 1500 VDC Isolation Capacitance 2000 pF Switching Frequency 220 kHz Case Material Plastic (DAP) with aluminium base plate. UL94V-0 rated. Meets EN45545-2 Potting Material Epoxy UL94V-0 Pin Material Copper with nickel and matte tin plate Water Wash Power Density Mean Time Between Failure Weight See Models and Ratings table Functional insulation MΩ 10 Solder Profile Notes & Conditions 260 °C With iron 450°C, 5s max. 1.5mm from case 10s max Use deionized water, do not soak. Dry thoroughly 109 W/in3 300 kHrs 0.25 (114) lb (g) www.xppower.com MIL-HDBK-217F at 25 °C GB 2 QSB300 DC-DC Power Supplies Safety Approvals Agency Standard Notes & Conditions UL UL62368-1 Pending EN EN62368-1 Evaluated to EN62368-1 CSA Pending CE CE UKCA UKCA Signals and Controls Phenomenon Standard Test Level Notes & Conditions Remote On/Off Output is off if pin 2 is low (220 μF / 100 V For C2 see note 5 & 6 or max capacitive load in Models and Ratings table. A low ESR electrolytic capacitor is recommended. 5.11 Vnom (100 + %) 511 - 10.22 kΩ 1.24 x % % Where: %= 3 x 100 www.xppower.com Vdes - Vnom Vnom x 100 QSB300 DC-DC Power Supplies Application Notes Output Voltage Sensing The module will automatically trim the output voltage via the sense pins to the default values either locally or at the load. If not required, the sense pins should be connected locally as indicated in the above example circuit. Efficiency vs Load 95% QSB30048S28 90% Ef f ic i en c y 85% 80% 75% 18Vin 24Vin 48Vin 75Vin 70% 65% 60% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Load EMC Considerations Suggested Circuits for Conducted EMI Class A L1 +Vin +Vin (1) C2 C1 -Vin DC/DC Converter -Vin (4) +VO +Vout (9) -Vout (5) C3 -VO C1 C2 C3 L1 220 μF/100V 220 μF/100V 220 μF 1.5 mH Notes 220 μF/100V NIPPON CHEMI-CON KMF series aluminum capacitors. C3 >220 μF or as per Models and Ratings table L1: Common mode choke, core p/n SM CM20 x 12 x 10 www.xppower.com 17 Aug 2022