DC-DC 12 Watts xppower.com JTF Series • High Power Density • Wide 4:1 Input Range • Operating Temperature -40 ºC to +100 ºC • Single & Dual Outputs • Standard Remote On/Off • 1600 VDC Isolation • High Efficiency - up to 90% Specification Input General Input Voltage Range • 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 µH inductor, 5 Hz to 20 MHz Input Surge • 24 V models: 50 VDC for 1000 ms • 48 V models: 100 VDC for 1000 ms Isolation Capacitance Switching Frequency MTBF • 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 Environmental 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 • Overload Protection • Overvoltage Protection • Short Circuit Protection Maximum Capacitive Load Temperature Coefficient Remote On/Off Efficiency Isolation • • 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 µs for a 25% load change 85 mV pk-pk, 20 MHz BW, with 1µF 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 • ±0.02/°C max • On = 3-12 V or open circuit Off <1.2 VDC or short circuit pins 1, 2 & 3 Operating Temperature • -40 ºC to +105 ºC, derate from 100% load at +60 °C to no load at +105 °C Case Temperature • +105 ºC max Storage Temperature • -40 ºC to +125 ºC 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 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 9-36 V 18-75 V Input Current(1) No Load Full Load Output Current V V V V V V V V V V V V V V 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 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 Maximum Capacitive Load mA mA mA mA mA mA mA mA mA mA mA mA mA mA 2000 2000 430 300 ±1250 ±200 ±120 2000 2000 430 300 ±1250 ±200 ±120 Model Number Efficiency µF µF µF µF µF µF µF µF µF µF µF µF µF µF 87% 89% 90% 90% 87% 90% 90% 87% 89% 90% 90% 87% 90% 90% JTF1224S3V3 JTF1224S05 JTF1224S12 JTF1224S15 JTF1224D05 JTF1224D12 JTF1224D15 JTF1248S3V3 JTF1248S05 JTF1248S12 JTF1248S15 JTF1248D05 JTF1248D12 JTF1248D15 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 µF ceramic capacitor across output rails. External input capacitor required, Nippon Chemi-Con KY series, 330 µF/ 100 V or equivalent. Mechanical Details All dimensions are in inches (mm) Weight: 0.04 lbs (20 g) approx. Pin Connections 24 Pin DIL Package - Nickel Coated Copper 1.25 (31.75) 0.90 (22.86) 0.08 (2.00) 1 2 0.80 (20.32) 3 DIA 0.02 (0.50) 9 11 0.60 (15.24) Bottom View 23 22 16 14 Pin Single Dual 1 Remote On/Off Remote On/Off 2 -Vin -Vin 3 -Vin -Vin 9 No Pin Common 11 Not Connected -Vout 14 +Vout +Vout 16 -Vout Common 22 +Vin +Vin 23 +Vin +Vin 0.10 (2.54) 0.40 (10.40) 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) 0.12 (3.05) Min. Application Notes Derating Curve Input Filter 100 +Vin Load (%) 80 +Vout L 60 C1 DC/DC Converter C2 LOAD 40 20 0 -40 -20 -Vin 0 10 20 30 40 50 60 Ambient Temperature (ºC) 70 Remote On/Off 80 90 -Vout 100 Model C1 L C2 24 V 2.2 µF, 100 V 12 µH 2.2 µF, 100 V 48 V 2.2 µF, 100 V 12 µH 2.2 µF, 100 V 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 DC-DC JTF Series Models and Ratings