DCDC 15/20 Watts xppower.com JTK Series • Very High Power Density • Wide 4:1 Input Range • Operating Temperature 40 °C to +100 °C • Single & Dual Outputs • 1600 VDC Isolation • High Efficiency up to 89% • 3 Year Warranty Specification General Input Input Voltage Range Input Current Input Filter Input Reflected Ripple Current Input Surge • 24 V (9-36 VDC) 48 V (18-75 VDC) • See table • Pi network • JTK15: 20 mA pk-pk JTK20: 30 mA pk-pk through 12 µH inductor and 47 µF capacitor, 5 Hz to 20 MHz • 24 V models: 50 VDC for 100 ms • 48 V models: 100 VDC for 100 ms Isolation Capacitance Switching Frequency Power Density MTBF Output Output Voltage Output Trim Minimum Load Initial Set Accuracy Start Up Delay 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 ±10% max on single output No minimum load required ±1% max 20 ms typical JTK15: ±0.2% max, JTK20: ±0.5% 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 100 mV pk-pk, 20 MHz bandwidth, (see note 3) JTK15: 170% of full load typical, JTK20: 150% of full load typical 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 ±5 V models: ±6.2 V typical ±12 V models: ±15 V typical ±15 V models: ±18 V typical Trip & restart (hiccup) with auto recovery See table • ±0.02/°C max • On >3.0 VDC or open circuit Off <1.2 VDC or short circuit pins 2 & 3 • See table • 1600 VDC Input to Output 1600 VDC Input to Case 1600 VDC Output to Case • JTK15: 1200 pF max JTK20: 1000 pF max • JTK15: 375 kHz typical JTK20: 330 kHz typical • JTK15: 38.4 W/in3, JTK20: 51.3 W/in3 • >560 KHrs to MIL-STD-217F at 25 °C, GB Environmental Operating Temperature • -40 °C to +100 °C, JTK15: derate from 100% load at +65 °C to no load at +100 °C, JTK20: derate from 100% load at +55 °C to no load at +100 °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 Conducted Immunity Magnetic Fields • EN55022, Level A conducted & radiated with external components see applications note • EN61000-4-2, Level 2 Perf Criteria A • EN61000-4-3, 3 V/m Perf Criteria A • EN61000-4-4, Level 3 Perf Criteria A* • EN61000-4-6, 3 V rms Perf Criteria A • EN61000-4-8, 1 A/m Perf Criteria A *External input capacitor required 220 µF / 100 V. Input Voltage Output Voltage 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±12.0 ±15.0 3.3 5.0 12.0 15.0 ±12.0 ±15.0 9-36 V 18-75 V 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 V V V V V V V V V V V V 4.000 3.000 1.300 1.000 ±1.500 ±0.625 ±0.500 4.000 3.000 1.300 1.000 ±1.500 ±0.625 ±0.500 4.500 4.000 1.670 1.330 ±0.833 ±0.667 4.500 4.000 1.670 1.330 ±0.833 ±0.667 A A A A A A A A A A A A A A A A A A A A A A A A A A 15 15 15 15 15 15 15 10 10 10 10 10 10 10 50 50 22 22 25 25 30 30 15 15 15 15 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA 647 727 747 710 744 720 710 331 368 378 360 377 363 360 720 936 936 936 936 936 309 468 468 468 468 468 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA Maximum Capacitive Load 1000 1000 330 220 ±470 ±220 ±100 1000 1000 330 220 ±470 ±220 ±100 10000 5000 850 700 ±470 ±330 10000 5000 850 700 ±470 ±330 µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF Efficiency Model Number 86% 87% 88% 89% 85% 88% 89% 84% 86% 87% 88% 84% 87% 88% 86% 89% 89% 89% 89% 89% 86% 89% 89% 90% 89% 89% JTK1524S3V3 JTK1524S05 JTK1524S12 JTK1524S15 JTK1524D05 JTK1524D12 JTK1524D15 JTK1548S3V3 JTK1548S05 JTK1548S12 JTK1548S15 JTK1548D05 JTK1548D12 JTK1548D15 JTK2024S3V3 JTK2024S05 JTK2024S12 JTK2024S15 JTK2024D12 JTK2024D15 JTK2048S3V3 JTK2048S05 JTK2048S12 JTK2048S15 JTK2048D12 JTK2048D15 Notes 1. Input current measured at nominal 24 V and 48 V input. 2. When one output is set to 100% load, and the other varies between 25% and 100% load. 3. Measured with 1 µF ceramic capacitor and 10 µF tantalum capacitor across output rails. Mechanical Details 1.00 (25.4) 0.40 0.40 (10.16) (10.16) 0.10 (2.54) 4 1.00 0.80 (25.40) (20.32) 5 0.39 (9.90) 0.10 (2.54) Pin 1 2 3 4 5 6 DIA 0.04 (1.00) 6 Bottom View Notes 1 0.40 0.10 (2.54) (10.16) Pin Connections Single Dual +Vin +Vin -Vin -Vin Remote On/Off Remote On/Off +Vout +Vout Trim Com -Vout -Vout 2 1. 2. 3. 4. 5. 3 0.22 (5.60) 0.20 0.30 (5.08) (7.62) Print Face All dimensions are in inches (mm) Weight: 0.04 lbs (20 g) approx. Pin diameter: 0.04 ±0.002 (1.0 ±0.05) Pin pitch tolerance: ±0.014 (±0.35) Case tolerance: ±0.02 (±0.5) Application Notes Output Trim Input Filter RTrim-up 5 RTrim-down Trim Resistor Values 4 Model Number JTK JTK JTK JTK 6 5 - Trim up 10% S3V3 S05 S12 S15 8k 10 k 20 k 20 k Trim down 10% 12 5 7 6 Approximate values. k k k k +Vout + 220 µF - +Vin 12 µH DC/DC Converter 2.2 µF Load -Vin -Vout Output can be externally trimmed by using this method. (Single output models only). For variable trimming, use 100 kΩ potentiometer. Contact sales for details. 21-Jan-11 DCDC JTK15/20 Models and Ratings