60 Watts xppower.com JCK Series 2:1 Input Range Very High Power Density High Efficiency - Up to 92% Remote On/Off 1600 VDC Isolation OCP, OVP & OTP Functions 3 Year Warranty Specification Input General Input Voltage Range 24 V (18-36 VDC), Efficiency See table 48 V (36-75 VDC) Isolation 1600 VDC Input to Output Input Current See table 1600 VDC Input to Case 1600 VDC Output to Case Input Reflected 20 mA pk-pk through 12 H inductor, Ripple Current 5 Hz to 20 MHz Isolation Capacitance 2000 pF typical Undervoltage Lockout 24 V models: ON 17.8 V, OFF 16 V typical Switching Frequency 270 kHz typical 3 48 V models: ON 33.5 V, OFF 30.5 V typical Power Density 37.5 W/in Input Surge 24 V models 50 VDC for 100 ms MTBF >110 kHrs min to MIL-HDBK-217F 48 V models 100 VDC for 100 ms at 25 C, GB Output Environmental Output Voltage See table Operating Temperature -40 C to +85 C, see derating curve Output Voltage Trim 10% Case Temperature +105 C max Minimum Load No minimum load required Cooling Natural convection Line Regulation 0.5% max Operating Humidity 5-95% RH, non-condensing Load Regulation 0.5% max Storage Temperature -40 C to +125 C Setpoint Accuracy 1% Start Up Time 30 ms typical EMC Ripple & Noise 75 mV for 3V3 +5 V models, Emissions EN55022 class A conducted & radiated 100 mV for other models (see note 2) with no external components Transient Response 3% max deviation, recovery to within ESD Immunity EN61000-4-2, 4 kV contact discharge, 1% in <250 s for a 25% load change Perf Criteria B Temperature 0.02%/C Radiated Immunity EN61000-4-3, 3 V/m, Perf Criteria A Coefficient EFT/Burst EN61000-4-4, level 1, Perf Criteria A* Overvoltage Protection 3.3 V models: 3.9 V typical 5 V models: 6.2 V typical Surge EN61000-4-5, level 1, Perf Criteria A 12 V models: 15 V typical Conducted Immunity EN61000-4-6, 3 Vrms, Perf Criteria A 15 V models: 18 V typical Magentic Field EN61000-4-8, 1 A/m, Perf Criteria A Overload Protection 115-130% of output current Short Circuit Protection Trip & restart (Hiccup mode), Safety auto recovery Remote On/Off On = Logic High (>3.0) or Open Safety Approvals CE (Meets all applicable directives), Off = Logic Low (<1.2 V) or short pin 2 UKCA (Meets all applicable legislation) to 3 *External input capacitor required, 220 F/100 V. DC-DCDC-DC JCK60 Models and Ratings (1) Input Current Maximum Input Voltage Output Voltage Output Current Efficiency Model Number Capacitive Load No Load Full Load 3.3 V 14.0 A 80 mA 2151 mA 36000 F 91% JCK6024S3V3 5.0 V 12.0 A 100 mA 2762 mA 20400 F 92% JCK6024S05 18-36 VDC 12.0 V 5.0 A 40 mA 2793 mA 3550 F 91% JCK6024S12 15.0 V 4.0 A 40 mA 2793 mA 2300 F 91% JCK6024S15 3.3 V 14.0 A 50 mA 1075 mA 36000 F 91% JCK6048S3V3 5.0 V 12.0 A 60 mA 1389 mA 20400 F 92% JCK6048S05 36-75 VDC 12.0 V 5.0 A 40 mA 1397 mA 3550 F 91% JCK6048S12 15.0 V 4.0 A 40 mA 1397 mA 2300 F 91% JCK6048S15 Notes 1. Input current specified at nominal input. 3. For heatsink option, add -HK to the end of the part number 2. Measured with 1 F ceramic capacitor in parallel with a 10 F electrolytic across output rails and 20 MHz bandwidth. Mechanical Details Optional heatsink (-HK) 0.3 0.2 0.3 0.2 (7.62) (5.08) (7.62) (5.08) 0.64 PIN CONNECTIONS 0.2 0.4 Dia. 0.04 (1.0) (5.08) (10.16) (16.3) Pin Single 1 +Vin 45 6 7 8 2 -Vin 3 Remote On/Off Printed Face 4 -Sense 5 +Sense 6 +Vout 50.8 (2.0) 7 -Vout 2.00 45.7 Bottom View (50.80) 8 Trim (1.8) Notes 1. All dimensions are in inches (mm). 2. Weight: 0.154 lbs (70 g) approx 12 3 3. Pin diameter: 0.04 0.002 (1.0 0.05) 4. Pin pitch tolerance: 0.014 (0.35) 5.08 10.16 5. Case tolerance: 0.02 (0.5) (0.2) (0.4) 0.24 Thermal Pad (6.0) 27.9 (1.1) 50.8 (2.0) Application Notes Derating Curve External Output Trim 7 (R2 + R3) x R TU R1 x (R2 + R3) x K 100% R = -R4 without heat-sink trim-up Where: R = R trim-up TU (R2 + R3) - R with heat-sink TU V x R3 - (R2 + R3) x K REQ 75% 8 50% 6 25% R1 x R R3 x (V - K) TD REQ R = -R4 Where: R = -R2 R trim-down trim-down TD R1 - R TD K -40 -20 0 20 40 55 60 80 85 100 8 Ambient Temperature (C) Model R1 R2 R3 R4 K JCK60XXS3V3 8200 330 5100 24000 1.24 JCK60XXS05 5100 22 5100 15000 2.495 JCK60XXS12 7500 6200 3600 20000 2.495 JCK60XXS15 8200 6800 3000 24000 2.495 Remote Sense If Remote Sense is not required, the +Sense and -Sense pins should be locally connected to +Vout and -Vout respectively. Remote sense can compensate for a total volt drop of 10%. When remote sense is used, output power must not exceed rated power. 29 Sept 2021 Load (%)