DCDC
Specification
40 Watts
• 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
JCK Series
Input
Input Voltage Range • 12 V (9-18 VDC),
24 V (18-36 VDC),
48 V (36-75 VDC)
Input Current • See table
Input Reflected • 20 mA pk-pk through 12 µH inductor,
Ripple Current 5 Hz to 20 MHz
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
48 V models: ON 33.5 V, OFF 30.5 V 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
Output
Output Voltage • See table
Output Voltage Trim • ±10% on single outputs models only,
contact sales for details
Minimum Load • No minimum load required
Line Regulation • ±0.5% max
Load Regulation • Single output models: ±0.5% max
Dual output models: ±1% max
balanced outputs
Cross Regulation • ±5% (see note 2)
Setpoint Accuracy • ±1%
Start Up Time • 30 ms typical
Ripple & Noise • 100 mV for 3V3 +5 V models,
150 mV for other models (see note 3)
Transient Response • 3% max deviation, recovery to within
1% in <250 µs for a 25% load change
Temperature • 0.02%/˚C
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 • 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
xppower.com
General
Efficiency • See table
Isolation • 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
Isolation Capacitance • 1000 pF typical
Switching Frequency • 270 kHz typical
Power Density • 50 W/in
3
MTBF • 330 kHrs min to MIL-HDBK-217F
at 25 ˚C, GB
Environmental
Operating Temperature • -40 ˚C to +70` ˚C, derate from 100% load
at 55 °C to 60% load at 70 °C
Case Temperature • +105 ˚C max
Cooling • Convection-cooled
Operating Humidity • 5-95% RH, non-condensing
Storage Temperature • -40 ˚C to +125 ˚C
EMC
Emissions • EN55022 class B conducted & radiated
with external components, see application
note
ESD Immunity • EN61000-4-2, 4 kV contact discharge,
Perf Criteria B
Radiated Immunity • EN61000-4-3, 3 V/m, Perf Criteria A
EFT/Burst • EN61000-4-4, level 1, Perf Criteria A*
Surge • EN61000-4-5, level 1, Perf Criteria A
Conducted Immunity • EN61000-4-6, 3 Vrms, Perf Criteria A
Magentic Field • EN61000-4-8, 1 A/m, Perf Criteria A
*External input capacitor required, 220 µF/100 V.
