20 Watts
xppower.com
JCH20 Series
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2:1 Input Range
2.0” x 2.0” x 0.4” Metal Package
1500 VDC Isolation
Efficiency up to 91%
Single & Dual Outputs
-40 °C to +100 °C Operating Temperature
Continuous Short Circuit Protection
Specification
Input
General
Input Voltage Range
• 12 V (9-18 VDC)
Efficiency
• See table
24 V (18-36 VDC)
48 V (36-72 VDC)
Isolation Voltage
• 1500 VDC Input to Output
1000 VDC Input to Case
1000 VDC Output to Case
Input Current
• See table
Input Reflected Ripple • 35 mA rms through 12 µH inductor,
Isolation Capacitance • 1000 pF typical
5 Hz to 20 MHz
Switching Frequency
MTBF
• 125 kHz typical
• >600 kHrs to MIL-STD-217F
Input Surge
• 12 V models 25 VDC for 100 ms
24 V models 50 VDC for 100 ms
48 V models 100 VDC for 100 ms
Environmental
Operating Temperature • -40 °C to +100 °C, derate from 100ꢁ load
Output
at +85 °C to 0ꢁ load at +100 °C
Case Temperature
Storage Temperature
Cooling
• +100 °C max
Output Voltage
Voltage Balance
Minimum Load
Line Regulation
Load Regulation
Setpoint Accuracy
Start Up Delay
• See table
• -40 °C to +125 °C
• Convection-cooled
• Up to 90ꢁ, non-condensing
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1ꢀ0ꢁ, dual output versions
• No minimum load required
Operating Humidity
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0ꢀ5ꢁ max
0ꢀ5ꢁ max
1ꢀ0ꢁ max
EMC
Emissions
• EN55022 Class A conducted & radiated
with external components, see application
note
• <10 ms
• <5 ms
Start Up Rise Time
Ripple & Noise
• 100 mV pk-pk for 5 V to 15 V models,
150 mV pk-pk for 24 V models,
20 MHz BW
ESD Immunity
• EN61000-4-2,
8 kV air discharge Perf Criteria A,
4 kV contact discharge Perf Criteria A
Transient Response
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5ꢁ max deviation, recovery to within
1ꢁ in 300 µs for a 25ꢁ load change
Radiated Immunity
• EN61000-4-6 Level 2 3 V/m Perf Criteria A
Temperature
Coefficient
• 0ꢀ02ꢁ/°C
Overcurrent Protection • 130ꢁ typical of full load at nominal input
Short Circuit Protection • Trip & restart (hiccup mode) with auto
recovery
Capacitive Load
• See table