UWR-12/665-D5A-C 查看數據表（PDF） - Unspecified
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UWR-12/665-D5A-C Datasheet PDF : 6 Pages
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UWR Series
Single Output, High Reliability, 2" x 1", 6-10 Watt, DC-DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀
Input
Input Voltage Range:
D5A Models
D12A Models
D24E Models
D48A Models
D48E Models
4.7-7.25 Volts (5V nominal)
9-18 Volts (12V nominal)
18-36Volts (24V nominal
18-75 Volts (48V nominal)
36-72 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type ➁
Overvoltage Shutdown:
D5A Models
D12A Models
D24E Models
D48A and D48E Models
Pi
None
20 Volts
40 Volts
76 Volts
Reverse-Polarity Protection
Yes (Instantaneous, 6A maximum)
Output
VOUT Accuracy (50% load)
Temperature Coefficient
Ripple/Noise (20MHz BW) ➁
Line/Load Regulation
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage ➂
1500Vdc, guaranteed
Isolation Capacitance
250pF
Current Limiting
Overvoltage Protection ➃
Auto-recovery
Zener/transorb clamp, magnetic feedback
Dynamic Characteristics
Transient Response (50% load step)
200µsec max. to ±1.5% of final value
Switching Frequency
165kHz (±15kHz)
Flammability
UL94V-0
Environmental
Operating Temperature (Ambient):
Without Derating
With Derating
–40 to +60/65/70°C (Model dependent)
to +100°C (See Derating Curves)
Storage Temperature
–40 to +105°C
Physical
Dimensions
2" x 1" x 0.375" (51 x 25 x 9.5mm)
Shielding
5-sided
Case Connection:
D5A, D12A and D24E Models
D48A and D48E Models
Pin 2 (–VIN)
Pin 1 (+VIN)
Case Material
Corrosion resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Pin Material
Gold plate over copper alloy
Weight
1.3 ounces (37 grams)
➀ These power converters require a minimum 10% loading to maintain specified regulation.
Operation under no-load conditions will not damage these devices; however they may
not meet all listed specifications.
➁ Application-specific input/output filtering can be recommended and perhaps added
internally upon request for scheduled, quantity orders. Contact Murata Power Solutions
Applications Engineering for details.
➂ Devices can be screened or modified for higher guaranteed isolation voltages.
Contact Murata Power Solutions Applications Engineering for details.
➃ Except for 3.3V devices which have no protection.
Absolute Maximum Ratings
Input Voltage:
D5A Models
D12A Models
D24E Models
D48A and D48E Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
5/5.2V Outputs
12V Outputs
15V Outputs
Output Current
Storage Temperature
10 Volts
22 Volts
44 Volts
80 Volts
Current must be <6A. Brief
duration only. Fusing recommended.
6.8 Volts, limited duration
15 Volts, limited duration
18 Volts, limited duration
Current limited. Max. current and
short-circuit duration model
dependent.
–40 to +105°C
These are stress ratings. Exposure of devices to greater than 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."
Designers will usually use the output Common (pin 5) as the ground/return
of the load circuit. You can, however, use the +Output (pin 3) as ground/
return to effectively reverse the output polarity.
Filtering and Noise Reduction
All A-Series UWR 6-10 Watt DC/DC Converters achieve their rated ripple
and noise specifications without the use of external input/output capaci-
tors. In critical applications, input/output ripple and 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 in the tables below. In many applications, using
values greater than those listed will yield better results.
To Reduce Input Ripple
D5A Models
D12A and D24E Models
D48A and D48E Models
To Reduce Output Ripple
5/5.2V Outputs
12/15V Outputs
47µF, 10V
20µF, 50V
10µF, 100V
47µF, 10V, Low ESR
22µF, 20V, Low ESR
In critical, space-sensitive applications, Murata Power Solutions may be
able to tailor the internal input/output filtering of these units to meet your
specific requirements.
www.murata-ps.com/support
MDC_UWR6-10W Series.E01 Page 3 of 6
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