DC DC
20 Watts
JTM Series
•
•
•
•
•
•
•
Wide 4:1 Input Range
Single & Dual Outputs
xppower.com
40 °C to +105 °C Operating Temperature
Overvoltage & Overcurrent Protection
Remote On/Off
1600 VDC Isolation
3 Year Warranty
Specification
Input
Input Voltage Range
Input Current
Undervoltage Lockout
Input Surge
• 24 V (9-36 VDC)
48 V (18-75 VDC)
• See table
• 24 V models: ON 8.6 V, OFF 7.9 V typical
48 V models: ON 17.8 V, OFF 16 V typical
• 24 V models 50 VDC for 100 ms
48 V models 100 VDC for 100 ms
General
Efficiency
Isolation
• See table
• 1600 VDC Input to Output
1600 VDC Input to Case
1600 VDC Output to Case
• 330 kHz typical
• 25 W/in
3
• 560 kHrs min to MIL-HDBK-217F
at 25 °C, GB
Switching Frequency
Power Density
MTBF
Output
Output Voltage
Output Voltage Trim
Minimum Load
Line Regulation
Load Regulation
•
•
•
•
•
See table
±10%, single outputs
No minimum load required
±0.5% max
Single output models: ±0.5% max
Dual output models: ±1% max
balanced outputs
±5% for dual outputs (see note 2)
±1%
20 ms typical
75 mV pk-pk at 20 MHz bandwidth,
(see note 3)
3% max deviation, recovery to within
1% in <250 µs for a 25% load change
0.02%/°C
Environmental
Operating Temperature
Case Temperature
Cooling
Operating Humidity
Storage Temperature
•
•
•
•
•
-40 °C to +105 °C, see derating curve
+105 °C max
Convection-cooled
5-95% RH, non-condensing
-40 °C to +125 °C
Cross Regulation
Setpoint Accuracy
Start Up Time
Ripple & Noise
Transient Response
•
•
•
•
•
EMC & Safety
Emissions
• EN55022, class A conducted & radiated
with external components - see
application notes
• EN61000-4-2, level 3 Perf Criteria A
• EN61000-4-3 10 V/m, Perf Criteria A
• EN61000-4-4 level 3, Perf Criteria B*
• EN61000-4-5 level 2, Perf Criteria B*
• EN61000-4-6 10 V/rms,Perf Criteria A
• EN61000-4-8 1 A/m, Perf Criteria A
Temperature
•
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)
ESD Immunity
Radiated Immunity
EFT/Burst
Surge
Conducted Immunity
Magnetic Field
*External input capacitor required 220 µF/100 V
Models and Ratings
Input Voltage
Output Voltage
3.3 VDC
5.0 VDC
12.0 VDC
9-36 VDC
15.0 VDC
±5.0 VDC
±12.0 VDC
±15.0 VDC
3.3 VDC
5.0 VDC
12.0 VDC
18-75 VDC
15.0 VDC
±5.0 VDC
±12.0 VDC
±15.0 VDC
Output Current
5.500 A
4.000 A
1.670 A
1.330 A
±2.000 A
±0.835 A
±0.665 A
5.500 A
4.000 A
1.670 A
1.330 A
±2.000 A
±0.835 A
±0.665 A
Input Current
(1)
No Load
Full Load
50 mA
50 mA
22 mA
22 mA
65 mA
25 mA
25 mA
30 mA
30 mA
15 mA
15 mA
40 mA
15 mA
15 mA
879 mA
957 mA
980 mA
968 mA
969 mA
980 mA
980 mA
440 mA
473 mA
484 mA
484 mA
484 mA
490 mA
490 mA
Maximum
Capacitive Load
10,000 µF
6,800 µF
1,000 µF
680 µF
±2,200 µF
±470 µF
±330 µF
10,000 µF
6,800 µF
1,000 µF
680 µF
±2,200 µF
±470 µF
±330 µF
Efficiency
89%
91%
89%
89%
89%
88%
89%
89%
91%
89%
89%
89%
88%
89%
JTM20
Model Number
JTM2024S3V3
JTM2024S05
JTM2024S12
JTM2024S15
JTM2024D05
JTM2024D12
JTM2024D15
JTM2048S3V3
JTM2048S05
JTM2048S12
JTM2048S15
JTM2048D05
JTM2048D12
JTM2048D15
DC DC
Notes
1.
2.
3.
4.
5.
Input current specified at nominal 24 V or 48 V input.
Cross regulation is ±5% when one output is at 100% and the other is varied between 25% and 100%.
Measured with 1 µF ceramic capacitor across output rails.
Non-standard versions can have Remote On/Off function and pin removed. Contact sales for details.
For heatsink option add ‘-HK’ to the end of the part number.
Mechanical Details
Optional heatsink (-HK)
1.00
(25.4)
0.10
(2.5)
0.40
(10.1)
0.40
(10.1)
0.10
(2.5)
0.40
(10.1)
0.64
(16.3)
0.60
(15.2)
DIA.
0.04
(1.0)
3
4
Bottom View
1
2
6
5
0.02
(0.5)
2.00
(50.8)
0.80
(20.3)
2.00
(50.8)
Pin
1
2
3
4
5
6
Pin Connections
Single
Dual
+Vin
+Vin
-Vin
-Vin
+Vout
+Vout
Trim
Com
-Vout
-Vout
Remote On/Off
Remote On/Off
Notes
0.60
(15.2)
0.40
(10.1)
0.20
(5.1)
0.40
(10.1)
0.20
(5.1)
min
Thermal Pad
1. All dimensions are in inches (mm).
2. Weight: 0.07 lbs (30 g)
3. Pin diameter: 0.04 ±0.002 (1.0 ±0.05)
4. Pin pitch tolerance: ±0.014 (±0.35)
5. Case tolerance: ±0.02 (±0.5)
6. Stand-off tolerance: ±0.004 (±0.1)
Application Notes
Derating Curve
100
80
External Output Trim
Output can be externally trimmed using
this method.
TRIM DOWN
Load (%)
without heat-sink
with heat-sink
4
TRIM UP
3
60
40
20
0
-40
0
S.O.A.
66 72
85
105
Contact sales for details.
5
4
Input Filter
Ambient Temperature (ºC)
+
+Vin
12 µH
+Vout
Remote On/Off Control
2.2 µF
2.2 µF
DC/DC
Converter
LOAD
Standard ROF logic is positive.
Output On 3.0-12.0 VDC or open circuit
Output Off <1.2 VDC or short circuit pins 2 & 6
-
-Vin
-Vout
18-Jul-13
嵌入式系统
