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15/20 Watts
JTK Series
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Very High Power Density
Wide 4:1 Input Range
Operating Temperature ꢀ40 °C to +100 °C
Single & Dual Outputs
1600 VDC Isolation
High Efficiency ꢀ up to 89%
3 Year Warranty
Specification
Input
General
Efficiency
Isolation
• See table
Input Voltage Range
• 24 V (9-36 VDC)
48 V (18-75 VDC)
• See table
• Pi network
• 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
Input Current
Input Filter
Isolation Capacitance • JTK15: 1200 pF max
Input Reflected
Ripple Current
• JTK15: 20 mA pk-pk
JTK20: 1000 pF max
• JTK15: 375 kHz typical
JTK20: 330 kHz typical
• JTK15: 38ꢁ4 Wꢂin ,
JTK20: 51ꢁ3 Wꢂin
JTK20: 30 mA pk-pk through 12 µH
inductor and 47 µF capacitor,
5 Hz to 20 MHz
• 24 V models: 50 VDC for 100 ms
• 48 V models: 100 VDC for 100 ms
Switching Frequency
Power Density
3
Input Surge
3
MTBF
• >560 KHrs to MIL-STD-217F at 25 /C, GB
Output
Environmental
Output Voltage
Output Trim
• See table
Operating Temperature • -40 /C to +100 /C, JTK15: derate
from 100ꢀ load at +65 /C to no load at
+100 /C, JTK20: derate from 100ꢀ load at
+55 /C to no load at +100 /C
•
10ꢀ max on single output
• No minimum load required
1ꢀ max
Minimum Load
Initial Set Accuracy
Start Up Delay
•
• 20 ms typical
• JTK15: 0ꢁ2ꢀ max, JTK20: 0ꢁ5ꢀ max
Case Temperature
• +105 /C max
Line Regulation
Load Regulation
Cross Regulation
Transient Response
Storage Temperature • -40 /C to +125 /C
Humidity
Cooling
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0ꢁ5ꢀ max single, 1ꢁ0ꢀ max dual
5ꢀ on dual output models, (see note 2)
• Up to 90ꢀ, non-condensing
• Natural convection
• <3ꢀ max deviation, recovery to within 1ꢀ
in 250 µs for a 25ꢀ load change
• 100 mV pk-pk, 20 MHz bandwidth,
(see note 3)
• JTK15: 170ꢀ of full load typical,
JTK20: 150ꢀ of full load typical
EMC
Ripple & Noise
Emissions
• EN55022, Level A conducted & radiated
with external components -
see applications note
• EN61000-4-2, Level 2 Perf Criteria A
• EN61000-4-3, 3 Vꢂm Perf Criteria A
• EN61000-4-4, Level 3 Perf Criteria A*
• EN61000-4-6, 3 V rms Perf Criteria A
• EN61000-4-8, 1 Aꢂm Perf Criteria A
Overload Protection
ESD Immunity
Overvoltage Protection • 3ꢁ3 V models: 3ꢁ9 V typical
5 V models: 6ꢁ2 V typical
Radiated Immunity
EFT/Burst
12 V models: 15 V typical
15 V models: 18 V typical
5 V models: 6ꢁ2 V typical
12 V models: 15 V typical
Conducted Immunity
Magnetic Fields
15 V models: 18 V typical
*External input capacitor required 220 µF / 100 V.
Short Circuit Protection • Trip & restart (hiccup) with auto recovery
Maximum Capacitive
Load
• See table
Temperature
Coefficient
•
0ꢁ02ꢂ/C max
Remote On/Off
• On >3ꢁ0 VDC or open circuit
Off <1ꢁ2 VDC or short circuit pins 2 & 3