20 Watts
xppower.com
JTM20 Series
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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
General
Input Voltage Range
• 24 V (9-36 VDC)
48 V (18-75 VDC)
Efficiency
Isolation
• See table
• 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
Input Current
• See table
Undervoltage Lockout • 24 V models: ON 8.6 V, OFF 7.9 V typical
48 V models: ON 17.8 V, OFF 16 V typical
Switching Frequency
MTBF
• 330 kHz typical
Input Surge
• 24 V models 50 VDC for 100 ms
48 V models 100 VDC for 100 ms
• 560 kHrs min per MIL-HDBK-217F
Environmental
Output
Operating Temperature • -40 °C to +105 °C, see derating curve
Output Voltage
• See table
Case Temperature
Cooling
• +105 °C max
Output Voltage Trim
Voltage Balance
Minimum Load
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10ꢀ
• Convection-cooled
• 5-95ꢀ RH, non-condensing
• -40 °C to +125 °C
1ꢀ max dual models, balanced load
Operating Humidity
Storage Temperature
• No minimum load required for single
output models, 10ꢀ required for dual
output models
EMC & Safety
Line Regulation
Load Regulation
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0.5ꢀ max
Emissions
• EN55022, class A conducted & radiated
with external components - see
application notes
• Single output models: 0.5ꢀ max
Dual output models: 1ꢀ max
balanced outputs
ESD Immunity
Radiated Immunity
EFT/Burst
• 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
Cross Regulation
Setpoint Accuracy
Start Up Time
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5ꢀ for dual outputs, see note 2
1ꢀ
• 20 ms typical
Surge
Ripple & Noise
• Single output models: 75 mV pk-pk
Dual output models: 75 mV pk-pk
at 20 MHz BW, see note 3
Conducted Immunity
Magnetic Field
Safety Approvals
Transient Response
• 3ꢀ max deviation, recovery to within
1ꢀ in <250 µs for a 25ꢀ load change
Temperature
Coefficient
• 0.02ꢀ/°C
*See note 4.
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
• >120ꢀ
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