UNR-2.5/10-D12 查看數據表（PDF） - DATEL Data Acquisition products
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UNR-2.5/10-D12 Datasheet PDF : 7 Pages
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NON-ISOLATED, 3.3V, 8-40W DC/DC CONVERTERS
UNR Series
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full load conditions unless noted.
Input Voltage Range:
"D5" Models
"D12" Models
Input Current
Input Filter Type
Overvoltage Shutdown
Reverse-Polarity Protection
On/Off (Sync.) Control (Pin 2)
Input
4.75-5.5 Volts (5V nominal)
10.8-13.2 Volts (12V nominal)
See Ordering Guide
None
None
Yes (Instantaneous, 10A maximum)
TTL high = off, low (or open) = on
Output
VOUT Accuracy (50% load)
±1%
Temperature Coefficient
Ripple/Noise (20MHz BW)
±0.02% per °C
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Current Limiting
Auto-recovery
Dynamic Characteristics
Transient Response (25% load step)
Switching Frequency:
"D5" Models
"D12" Models
100µsec to ±1.5% of final value
75kHz (±5kHz)
90kHz (±5kHz)
Environmental
Operating Temperature (ambient):
Without Derating:
3A an 8A "D5" Models
12A "D5" and 2.5A "D12" Models
With Derating
Storage Temperature
–40 to +50°C
–40 to +45°C
to +100°C (See Derating Curves)
–55 to +105°C
Physical
Dimensions:
3A "D5" and 2.5A "D12" Models
8A "D5" Model
12A "D5" Model
Shielding
Case Connection
Case Material
Pin Material
Weight:
3A "D5" and 2.5A "D12" Models
8A "D5" Model
12A "D5" Model
1" x 1" x 0.45" (25 x 25 x 11.4mm)
2" x 1" x 0.45" (51 x 25 x 11.4mm)
2" x 2" x 0.45" (51 x 51 x 11.4mm)
5-sided
Pin 4 (Output Return)
Corrosion resistant steel with
epoxy-based enamel finish
Brass, solder coated
1 ounce (28.4 grams)
1.5 ounces (42.5 grams)
2 ounces (56.7 grams)
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.
These power converters do not have internal input filters and do require external input
and output capacitors to achieve rated specifications. Application-specific internal input/
output filtering can be added upon request. Contact DATEL for details.
On/Off Control pins are included on "D5" models only. See Technical Notes 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.
Cases can be provided with 6-sided shielding. Contact DATEL for details.
Absolute Maximum Ratings
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. Storage temperatures have been verified for 168 hours.
Input Voltage:
"D5" Models
"D12" Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature (soldering, 10sec.)
7 Volts
15 Volts
Current must be <10A. Brief
duration. Fusing recommended.
None
Current limited. Max. current and
short-circuit duration model
dependent.
–55 to +105°C
+300°C
Temperature Derating
20
19
18
17
UNR-3.3/12000-D5 A
16
UNR-3.3/8000-D5
B
15
UNR-3.3/3000-D5
C
14
UNR-3.3/2500-D12 D
13
12
11
A
10
9
8
B
7
6
5
4
3
2
D
C
1
0
–40 0 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature (°C)
3
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