UER-12-1000-D12 查看數據表（PDF） - DATEL Data Acquisition products
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UER-12-1000-D12 Datasheet PDF : 4 Pages
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12-15W, SINGLE OUTPUT DC/DC CONVERTERS
UER Models
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted.
Input
Input Voltage Range:
"D12" Models
"D48" Models
9-36 Volts (24V nominal)
18-72 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type
LC
Overvoltage Shutdown:
"D12 Models"
"D48 Models"
40 Volts
80 Volts
Reverse-Polarity Protection
Yes (Instantaneous, 10A maximum)
On/Off (Sync) Control (Pin 4)
TTL high = off, low (or open) = on
Output
VOUT Accuracy (50% load)
±1%, maximum
Temperature Coefficient
±0.02% per °C
Ripple/Noise (20MHz BW)
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage
750Vdc, minimum
Isolation Capacitance
550pF
Short-Circuit Protection
Continuous, auto-recovery
Overvoltage Protection
Zener/transorb clamp, magnetic feedback
Dynamic Characteristics
Transient Response (50% load step) 200µsec max. to ±1.5% of final value
Switching Frequency
160kHz
Environmental
Operating Temperature (ambient):
Without Derating
With Derating
–25 to +50/55°C (Model dependent)
to +95°C (See Derating Curves)
Storage Temperature
–40 to +100°C
Physical
Dimensions
2" x 2" x 0.50" (51 x 51 x 12.7mm)
Shielding
None
Case Connection
None
Case Material
Diallyl phthalate, UL94V-0 rated
Pin Material
Brass, solder coated
Weight
2.7 ounces (75.6 grams)
3.3/5V devices require a minimum 10% loading and 12/15V devices require a minimum
20% loading to maintain specified regulation. Operation under no-load conditions will not
damage these devices; however they may not meet all listed specifications.
Application-specific input/output filtering can be recommended and perhaps added
internally upon request. Contact DATEL Applications Engineering for details.
Applying a voltage to the Control pin when no input power is applied to the converter can
cause permanent damage to the converter.
Devices can be screened or modified for higher guaranteed isolation voltages.
Contact DATEL Applications Engineering for details.
Devices can be warranted or screened for –40°C operation.
Contact DATEL Applications Engineering for details.
Absolute Maximum Ratings
Input Voltage:
"D12" Models
"D48" Models
44 Volts
88 Volts
Input Reverse-Polarity Protection Current must be <10A. Brief
duration only. Fusing recommended.
Output Overvoltage Protection:
3.3V Outputs
5V Outputs
12V Outputs
15V Outputs
No protection
6.8 Volts, limited duration
15 Volts, limited duration
18 Volts, limited duration
Output Current
Current limited. Max. current and
short-circuit duration are model
dependent.
Storage Temperature
–40 to +100°C
Lead Temperature (soldering, 10 sec.) +300°C
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Users
may ground either the Common (pin 7) for normal usage or the positive side
(+Output, pin 6) to effectively reverse the output polarity.
Filtering and Noise Reduction
All UER 12-15 Watt DC/DC Converters achieve their rated ripple and noise
specifications without the use of external input/output capacitors. In critical
applications, input/output noise may be further reduced by installing electrolytic
capacitors across the input terminals and/or low-ESR tantalum or electrolytic
capacitors across the output terminals. The caps should be located as close to
the power converters as possible. Typical values are listed below. In many
applications, using values greater than those listed will yield better results.
To Reduce Input Ripple
"D12" Models
"D48" Models
To Reduce Output Ripple
3.3V Outputs
5V Outputs
12/15V Outputs
20µF, 50V
20-50µF, 100V
100µF, 6V, Low ESR
47µF, 10V, Low ESR
22µF, 20V, Low ESR
In critical, space-sensitive applications, DATEL may be able to tailor the
internal input/output filtering of these units to meet your specific requirements.
Contact our Applications Engineering Group for additional details.
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