DC-DC 20 Watts xppower.com JTM20 Series • 4:1 Input Range • -40 °C to +100 °C Operating Temperature • Single & Dual Outputs • Overvoltage & Overcurrent Protection • High Efficiency - Up to 91% • Standard Remote On/Off • 1600 VDC Isolation Specification Input Input Voltage Range Input Current Undervoltage Lockout Input Surge General • 24 V (9-36 VDC) 48 V (18-75 VDC) • See table • 24 V models: ON 8.6 V, OFF 7.9 V typical 48 V models: ON 17.8 V, OFF 16 V typical • 24 V models 50 VDC for 100 ms 48 V models 100 VDC for 100 ms Efficiency Isolation Switching Frequency MTBF • See table • 1600 VDC Input to Output 1600 VDC Input to Case 1600 VDC Output to Case • 330 kHz typical • 560 kHrs min per MIL-HDBK-217F Environmental Output Output Voltage Output Voltage Trim Voltage Balance Minimum Load • • • • Line Regulation Load Regulation • • Cross Regulation Setpoint Accuracy Start Up Time Ripple & Noise • • • • Transient Response • See table ±10% ±1% max dual models, balanced load No minimum load required for single output models, 10% required for dual output models ±0.5% max Single output models: ±0.5% max Dual output models: ±1% max balanced outputs ±5% for dual outputs, see note 2 ±1% 20 ms typical Single output models: 75 mV pk-pk Dual output models: 75 mV pk-pk at 20 MHz BW, 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 ±5 V models: ±6.2 V typical ±12 V models: ±15 V typical ±15 V models: ±18 V typical Overload Protection • >120% 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 6 see note 5 Operating Temperature Case Temperature Cooling Operating Humidity Storage Temperature • • • • • -40 °C to +105 °C, see derating curve +105 °C max Convection-cooled 5-95% RH, non-condensing -40 °C to +125 °C EMC & Safety Emissions ESD Immunity Radiated Immunity EFT/Burst Surge Conducted Immunity Magnetic Field Safety Approvals *See note 4. • EN55022, class A conducted & radiated with external components - see application notes • EN61000-4-2, level 2 Perf Criteria B • EN61000-4-3 10 V/rms, Perf Criteria A • EN61000-4-4 level 3, Perf Criteria B* • EN61000-4-5 level 2, Perf Criteria B* • EN61000-4-6 10 V/m,Perf Criteria A • EN61000-4-8 1 A/m, Perf Criteria A • EN60950-1, IEC60950-1 Input Voltage Output Voltage Input Current (1) No Load Full Load 50 mA 879 mA 50 mA 957 mA 22 mA 980 mA 22 mA 968 mA 65 mA 969 mA 25 mA 980 mA 25 mA 980 mA Output Current 9-36 VDC 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 VDC VDC VDC VDC VDC VDC VDC 5.500 4.000 1.670 1.330 ±2.000 ±0.835 ±0.665 A A A A A A A 18-75 VDC 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 VDC VDC VDC VDC VDC VDC VDC 5.500 4.000 1.670 1.330 ±2.000 ±0.835 ±0.665 A A A A A A A 30 30 15 15 40 15 15 mA mA mA mA mA mA mA 440 473 484 484 484 490 490 Maximum Capacitive Load 10,000 µF 6,800 µF 1,000 µF 680 µF ±2,200 µF ±470 µF ±330 µF mA mA mA mA mA mA mA 10,000 6,800 1,000 680 ±2,200 ±470 ±330 Model Number Efficiency µF µF µF µF µF µF µF 89% 91% 89% 89% 89% 88% 89% JTM2024S3V3 JTM2024S05 JTM2024S12 JTM2024S15 JTM2024D05 JTM2024D12 JTM2024D15 89% 91% 89% 89% 89% 88% 89% JTM2048S3V3 JTM2048S05 JTM2048S12 JTM2048S15 JTM2048D05 JTM2048D12 JTM2048D15 Notes 1. 2. 3. 4. 5. Input currents specified at nominal 24 V or 48 V input. Cross regulation is ±5% when one output is at 100% and the other is varied between 25% and 100%. Measured with 1 µF ceramic capacitor across output rails. External input capacitor required Nippon Chemi-Con KY series 220 µF/100 V or equivalent. Non-standard versions can have Remote On/Off function and pin removed. Mechanical Details All dimensions are in inches (mm) Weight: 0.07 lbs (30 g) 1.00 (25.40) PIN CONNECTIONS 0.40 (10.16) 0.10 (2.54) 0.10 (2.54) 0.40 (10.16) DIA. 0.04 (1.00) 0.60 (15.24) 3 2.00 (50.80) 0.40 (10.16) 0.80 (20.32) 4 5 Pin Single Dual 1 +Vin +Vin 2 -Vin -Vin 3 +Vout +Vout 4 Trim Com 5 -Vout -Vout 6 Remote On/Off Remote On/Off Bottom View 1 2 6 Notes 0.60 (15.24) 0.40 (10.16) 0.20 (5.08) min 0.40 0.20 (5.08) (10.16) 1. 2. 3. 4. All dimensions are in inches (mm). 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 Derating Curve External Output Trim 100 4 3 Load (%) 80 TRIM UP TRIM DOWN 60 5 40 20 0 -40 -20 4 Input Filter +Vin +Vout L 0 10 20 30 40 50 60 Ambient Temperature (ºC) 70 80 90 100 110 C1 C2 DC/DC Converter -Vin LOAD -Vout Remote On/Off Control Standard ROF logic is positive. Output On >3.0 VDC or open circuit Output Off <1.2 VDC or short circuit pins 2 & 6 Model 24 VDC 48 VDC C1 2.2 µF, 100 V 2.2 µF, 100 V L 12 µH 12 µH C2 2.2 µF, 100 V 2.2 µF, 100 V 27-Nov-08 DC-DC JTM20 Models and Ratings