DCDC
Specification
20 Watts
• Wide 4:1 Input Range
• Single & Dual Outputs
• 40 °C to +105 °C Operating Temperature
• Overvoltage & Overcurrent Protection
•
Remote On/Off
• 1600 VDC Isolation
• 3 Year Warranty
JTM Series
Input
Input Voltage Range • 24 V (9-36 VDC)
48 V (18-75 VDC)
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
Input Surge • 24 V models 50 VDC for 100 ms
48 V models 100 VDC for 100 ms
Output
Output Voltage • See table
Output Voltage Trim • ±10%, single outputs
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% for dual outputs (see note 2)
Setpoint Accuracy • ±1%
Start Up Time • 20 ms typical
Ripple & Noise • 75 mV pk-pk at 20 MHz bandwidth,
(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
±5 V models: ±6.2 V typical
±12 V models: ±15 V typical
±15 V models: ±18 V typical
Overload Protection • >120% of full load typical
Short Circuit Protection • Trip & restart (hiccup mode), auto recovery
Remote On/Off • On = Logic High (3.0-12.0 V) or Open
Off = Logic Low (<1.2 V) or short pin 2 to 6
(see note 4)
xppower.com
General
Efficiency • See table
Isolation • 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
Switching Frequency • 330 kHz typical
Power Density • 25 W/in
3
MTBF • 560 kHrs min to MIL-HDBK-217F
at 25 °C, GB
Environmental
Operating Temperature • -40 °C to +105 °C, see derating curve
Case Temperature • +105 °C max
Cooling • Convection-cooled
Operating Humidity • 5-95% RH, non-condensing
Storage Temperature • -40 °C to +125 °C
EMC & Safety
Emissions • EN55022, class A conducted & radiated
with external components - see
application notes
ESD Immunity • EN61000-4-2, level 3 Perf Criteria A
Radiated Immunity • EN61000-4-3 10 V/m, Perf Criteria A
EFT/Burst • EN61000-4-4 level 3, Perf Criteria B*
Surge • EN61000-4-5 level 2, Perf Criteria B*
Conducted Immunity • EN61000-4-6 10 V/rms,Perf Criteria A
Magnetic Field • EN61000-4-8 1 A/m, Perf Criteria A
*External input capacitor required 220 µF/100 V
