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| DC-DC 12 Watts JTF Series * * * * * * * High Power Density Wide 4:1 Input Range xppower.com Operating Temperature -40 C to +100 C Single & Dual Outputs Standard Remote On/Off 1600 VDC Isolation High Efficiency - up to 90% Specification Input * 24 V (9-36 VDC) 48 V (18-75 VDC) Input Current * See table Input Filter * Pi network Input Reflected Ripple * 20 mA pk-pk through 12 H inductor, 5 Hz to 20 MHz Input Surge * 24 V models: 50 VDC for 1000 ms * 48 V models: 100 VDC for 1000 ms Input Voltage Range General Efficiency Isolation * See tables * 1600 VDC Input to Output 1600 VDC Input to Case 1600 VDC Output to Case * 1500 pF max * 270 kHz typical * >1 MHrs to MIL-STD-217F Isolation Capacitance Switching Frequency MTBF Output Output Voltage Output Voltage Balance Minimum Load Intial Set Accuracy Start Up Delay Start Up Rise Time Line Regulation Load Regulation Cross Regulation Transient Response Ripple & Noise * * * * * * * * * * * See table 1% max, dual output models No minimum load required 1.2% max <20 ms <10 ms 0.2% max 0.5% max single, 1.0% max dual 5% on dual output models, see note 2 <3% max deviation, recovery to within 1% in 250 s for a 25% load change 85 mV pk-pk, 20 MHz BW, with 1F ceramic capacitor, see note 3 >170% 3.3 V models: 3.9 V typical 5 V models: 6.2 V typical 12 V models: 15 V typical 15 V models: 18 V typical 12 V models: 15 V typical 15 V models: 18 V typical Trip & restart (hiccup) with auto recovery See tables Environmental Operating Temperature * -40 C to +105 C, derate from 100% load at +60 C to no load at +105 C Case Temperature * +105 C max Storage Temperature * -40 C to +125 C Humidity * Up to 90%, non-condensing Cooling * Natural convection EMC Emissions ESD Immunity Radiated Immunity EFT/Burst Surge Conducted Immunity Magnetic Field *See note 4. * EN55022 Class A conducted with external components - see application note * EN61000-4-2, 4 kV contact discharge Perf Criteria B * EN61000-4-3, 3 V/m Perf Criteria A * EN61000-4-4, Level 3 Perf Criteria B* * EN61000-4-5, Level 2 Perf Criteria B* * EN61000-4-6, 3 Vrms Perf Criteria A * EN61000-4-8, 1 A/m Perf Criteria A Overload Protection * Overvoltage Protection * Short Circuit Protection Maximum Capacitive Load Temperature Coefficient Remote On/Off * * * 0.02/C max * On = 3-12 V or open circuit Off <1.2 VDC or short circuit pins 1, 2 & 3 DC-DC Models and Ratings Input Voltage Output Voltage 3.3 5.1 12.0 15.0 5.0 12.0 15.0 3.3 5.1 12.0 15.0 5.0 12.0 15.0 V V V V V V V V V V V V V V JTF Series Output Current 3.5 2.4 1.0 0.8 1.2 0.5 0.4 3.5 2.4 1.0 0.8 1.2 0.5 0.4 A A A A A A A A A A A A A A Input Current(1) No Load Full Load 15 15 15 15 15 15 15 15 15 15 15 15 12 15 mA mA mA mA mA mA mA mA mA mA mA mA mA mA 573 581 574 574 595 574 574 286 290 287 287 297 287 287 mA mA mA mA mA mA mA mA mA mA mA mA mA mA Maximum Capacitive Load 2000 2000 430 300 1250 200 120 2000 2000 430 300 1250 200 120 F F F F F F F F F F F F F F Efficiency 87% 89% 90% 90% 87% 90% 90% 87% 89% 90% 90% 87% 90% 90% Model Number JTF1224S3V3 JTF1224S05 JTF1224S12 JTF1224S15 JTF1224D05 JTF1224D12 JTF1224D15 JTF1248S3V3 JTF1248S05 JTF1248S12 JTF1248S15 JTF1248D05 JTF1248D12 JTF1248D15 9-36 V 18-75 V Notes 1. 2. 3. 4. Input current measured at nominal 24 V and 48 V input. When one output is set to 100% load, and the other varies between 25% and 100% load. Measured with 1 F ceramic capacitor across output rails. External input capacitor required, Nippon Chemi-Con KY series, 330 F/ 100 V or equivalent. Mechanical Details All dimensions are in inches (mm) Weight: 0.04 lbs (20 g) approx. Pin 1 2 1.25 (31.75) 0.08 (2.00) 0.90 (22.86) Pin Connections Single Remote On/Off -Vin -Vin No Pin Not Connected +Vout -Vout +Vin +Vin Dual Remote On/Off -Vin -Vin Common -Vout +Vout Common +Vin +Vin 24 Pin DIL Package - Nickel Coated Copper 3 9 11 9 11 12 3 14 0.60 (15.24) 0.80 (20.32) DIA 0.02 (0.50) 23 Bottom View 22 16 14 16 22 23 0.10 (2.54) 0.40 (10.40) 0.12 (3.05) Min. Notes: 1. Pin diameter: 0.02 0.002 (0.5 0.05) 2. Pin pitch tolerance: 0.014 (0.35) 3. Case Tolerance: 0.02 (0.5) Application Notes Derating Curve 100 +Vin +Vout Input Filter 80 Load (%) 60 C1 L C2 DC/DC Converter LOAD 40 20 0 -40 -20 -Vin -Vout 0 10 20 30 40 50 60 Ambient Temperature (C) 70 80 90 100 Model 24 V 48 V C1 2.2 F, 100 V 2.2 F, 100 V L 12 H 12 H C2 2.2 F, 100 V 2.2 F, 100 V Remote On/Off Standard ROF logic is positive Output On >3.0 VDC or open circuit Output Off <1.2 VDC or short circuit pins 1, 2 & 3 27-Nov-08 |
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