40 Watts
xppower.com
JCK Series
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2:1 Input Range
Very High Power Density
Single and Dual Outputs
High Efficiency - Up to 92%
Remote On/Off
1600 VDC Isolation
3 Year Warranty
Specification
Input
General
Input Voltage Range
• 12 V (9-18 VDC),
24 V (18-36 VDC),
48 V (36-75 VDC)
Efficiency
Isolation
• See table
• 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
Input Current
• See table
Input Reflected
Ripple Current
• 20 mA pk-pk through 12 µH inductor,
5 Hz to 20 MHz
Isolation Capacitance • 1000 pF typical
Switching Frequency
Power Density
MTBF
• 270 kHz typical
• 50 W/in
• 330 kHrs min to MIL-HDBK-217F
at 25 ˚C, GB
3
Undervoltage Lockout • 12 V models: ON 8.6 V, OFF 7.9 V typical
24 V models: ON 17.8 V, OFF 16 V typical
48V models: ON 33.5V, OFF 30.5V typical
Input Surge
• 12 V models 25 VDC for 1000 ms
24 V models 50 VDC for 1000 ms
48 V models 100 VDC for 1000 ms
Environmental
Operating Temperature • -40 ˚C to +70 ˚C, derate from 100% load
at 55 °C to 60% load at 70 °C
• +105 ˚C max
• Convection-cooled
• 5-95% RH, non-condensing
• -40 ˚C to +125 ˚C
Output
Case Temperature
Cooling
Output Voltage
• See table
Output Voltage Trim
•
10% on single outputs models only,
contact sales for details
Operating Humidity
Storage Temperature
Minimum Load
Line Regulation
Load Regulation
• No minimum load required
0.5% max
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EMC
• Single output models: 0.5% max
Dual output models: 1% max
balanced outputs
Emissions
• EN55022 class B conducted & radiated
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 1, Perf Criteria A*
• EN61000-4-5, level 1, Perf Criteria A
• EN61000-4-6, 3 Vrms, Perf Criteria A
• EN61000-4-8, 1 A/m, Perf Criteria A
Cross Regulation
Setpoint Accuracy
Start Up Time
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5% (see note 2)
1%
ESD Immunity
• 30 ms typical
• 100 mV for 3V3 +5 V models,
150 mV for other models (see note 3)
• 3% max deviation, recovery to within
1% in <250 µs for a 25% load change
• 0.02%/˚C
Radiated Immunity
EFT/Burst
Ripple & Noise
Transient Response
Surge
Conducted Immunity
Magentic Field
Temperature
Coefficient
Overvoltage Protection • 3.3 V models: 3.9 V typical
5 V models: 6.2 V typical
*External input capacitor required, 220 µF/100 V.
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
• 115-130% of output current
Short Circuit Protection • Trip & restart (Hiccup mode),
auto recovery
Remote On/Off
• On = Logic High (>3.0) or Open
Off = Logic Low (<1.2 V) or short pin 2
to 3