DCDC 20 Watts xppower.com JCK Series • 2:1 Input Range • 40 °C to +100 °C Operating Temperature • Single & Dual Outputs • Remote On/Off • High Efficiency up to 93% • 1600 VDC Isolation • 3 Year Warranty Specification Input Input Voltage Range Input Current Undervoltage Lockout Input Surge General • 12 V (9-18 VDC) 24 V (18-36 VDC) 48 V (36-75 VDC) • See table • 12 V models: ON 8.6 V, OFF 7.9 V typical 24 V models: ON 17.8 V, OFF 16 V typical 48 V models: ON 33.5 V, OFF 30.5 V typical • 12 V models 36 VDC for 100 ms 24 V models 50 VDC for 100 ms 48 V models 100 VDC for 100 ms Isolation Capacitance • See table • 1600 VDC Input to Output 1600 VDC Input to Case 1600 VDC Output to Case • 1200 pF typical Isolation Resistance Switching Frequency Power Density MTBF • • • • Efficiency Isolation 109Ω min 330 kHz typical 25 W/in3 >680 kHrs minimum to MIL-HDBK-217F at 25 °C, GB Environmental Output Output Voltage Output Voltage Trim Minimum Load Line Regulation Load Regulation • • • • • Cross Regulation Setpoint Accuracy Start Up Delay Start Up Rise Time Ripple & Noise Transient Response • • • • • • See table ±10% max on single outputs No minimum load required ±0.5% max Single output models: ±0.5% max Dual output models: ±1% max balanced outputs ±5% for dual outputs (see note 2) ±1% max <20 ms <5 ms 75 mV pk-pk (see note 3) ±3% max deviation, recovery to within 1% in 250 µs for a 25% load change 0.02%/°C Temperature • Coefficient Overvoltage Protection • 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 Overload Protection • >140% of full load at nominal input Short Circuit Protection • Trip & restart (hiccup mode), auto recovery Remote On/Off • On = Logic High (>3.0 V) or Open Off = Logic Low (<1.2 V) or short pin 2 to pin 6 Capacitive Load • See table Operating Temperature • -40 °C to +100 °C, derate from 100% load at +70 °C to 0% load at +100 °C Case Temperature • +100 °C max Cooling • Convection-cooled Operating Humidity • Up to 95% RH, non-condensing Storage Temperature • -40 °C to +125 °C EMC Emissions ESD Immunity Radiated Immunity EFT/Burst Surge Conducted Immunity Magnetic Field • EN55022, Class A conducted & radiated with external components, see application note • EN61000-4-2, 8 kV air, 6 kV contact, Perf Criteria A • EN61000-4-3 10 V/m, Perf Criteria A • EN61000-4-4 level 3, Perf Criteria B* • EN61000-4-5 level 2, Perf Criteria B* • EN61000-4-6 10 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 ±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 9-18 VDC 18-36 VDC 36-75 VDC Input Current (1) No Load Full Load 60 mA 1.74 A 60 mA 1.87 A 30 mA 1.92 A 30 mA 1.92 A 30 mA 1.94 A 30 mA 1.94 A 35 mA 0.86 A 35 mA 0.93 A 25 mA 0.95 A 25 mA 0.95 A 30 mA 0.96 A 30 mA 0.96 A 25 mA 0.43 A 25 mA 0.46 A 15 mA 0.47 A 15 mA 0.47 A 20 mA 0.48 A 20 mA 0.48 A Output Current VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC 5.500 4.000 1.670 1.330 ±0.835 ±0.665 5.500 4.000 1.670 1.330 ±0.835 ±0.665 5.500 4.000 1.670 1.330 ±0.835 ±0.665 A A A A A A A A A A A A A A A A A A Maximum Capacitive Load 10,000 µF 6,800 µF 1,000 µF 680 µF ±470 µF ±330 µF 10,000 µF 6,800 µF 1,000 µF 680 µF ±470 µF ±330 µF 10,000 µF 6,800 µF 1,000 µF 680 µF ±470 µF ±330 µF Efficiency Model Number 90% 92% 90% 90% 89% 89% 91% 93% 91% 91% 90% 90% 91% 93% 91% 91% 90% 89% JCK2012S3V3 JCK2012S05 JCK2012S12 JCK2012S15 JCK2012D12 JCK2012D15 JCK2024S3V3 JCK2024S05 JCK2024S12 JCK2024S15 JCK2024D12 JCK2024D15 JCK2048S3V3 JCK2048S05 JCK2048S12 JCK2048S15 JCK2048D12 JCK2048D15 Notes 3. Measured with 20 MHz bandwidth and 1 µF ceramic capacitor across output rails. 4. For heatsink option add ‘-HK’ to the end of the part number. 1. Input current specified at nominal 12, 24 V or 48 V input. 2. Cross regulation is ±5% when one output is at 100% and the other is varied between 25% and 100%. Mechanical Details 0.40 (10.1) 0.10 (2.5) 1.00 (25.4) 0.40 (10.1) 0.20 (5.0) 0.60 (15.2) 3 2.00 (50.8) 0.80 (20.3) 4 5 Bottom View 1 2 0.40 (10.2) 0.10 (2.5) Ø 0.04 (1.0) Optional heatsink (-HK) 0.64 (16.3) Ø 0.02 (0.5) 2.00 (50.8) Ø 0.04 (1.0) PIN CONNECTIONS Single Dual +Vin +Vin -Vin -Vin +Vout +Vout Trim Com -Vout -Vout Remote On/Off Remote On/Off Pin 1 2 3 4 5 6 6 Notes 0.60 (15.2) 0.20 (5.0) 0.40 (10.1) Thermal Pad 0.20 (5.0) min. 0.40 (10.16) 0.20 (5.08) 1. 2. 3. 4. 5. All dimensions are in inches (mm). Weight: 0.07 lbs (30 g) 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 External Output Trim Derating Curve 4 TRIM UP 100% Output Power 3 without heat-sink with heat-sink 75% 50% TRIM DOWN 5 4 For 3.3 V output: Trim +10%, R = 10 k typical Trim - 10%, R = 15 k typical For 12 V output: Trim +10%, R = 22 k typical Trim - 10%, R = 5 k typical For 5 V output: Trim +10%, R = 10 k typical Trim - 10%, R = 5 k typical For 15 V output: Trim +10%, R = 20 k typical Trim - 10%, R = 5 k typical Input Filter 25% + +Vin +Vout 12 µH -40 -20 0 20 40 60 70 75 80 85 100 120 C1 Ambient Temperature (°C) Remote On/Off Control - Output On Output Off 12 Vin: C1 = 330 µF 24 & 48 Vin: C1 = 220 µF >3.0 VDC or open circuit <1.2 VDC or short circuit pins 2 & 6 DC/DC Converter -Vin LOAD -Vout 01-Aug-13 DCDC JCK20 Models and Ratings