UHR-1215/4000-D12 View Datasheet(PDF) - DATEL Data Acquisition products
Part Name
Description
Manufacturer
UHR-1215/4000-D12 Datasheet PDF : 4 Pages
| |||
16-20W, SINGLE OUTPUT DC/DC CONVERTERS
UHR 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
Input Filter Type
See Ordering Guide
LC
Overvoltage Shutdown:
"D12" Models
"D48" Models
Reverse-Polarity Protection
40 Volts
76 Volts
Yes (Instantaneous, 10A maximum)
On/Off (Sync) Control (Pin 4)
VOUT Accuracy (50% load)
Temperature Coefficient
Ripple/Noise (20MHz BW)
Line/Load Regulation
TTL high = off, low (or open) = on
Output
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage
Isolation Capacitance
750Vdc, minimum
550pF
Current Limiting
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
165kHz (±10kHz)
Environmental
Operating Temperature (Ambient):
Without Derating
With Derating
Maximum Baseplate Temperature
–40 to +35/40/45/50°C (Model dependent)
to +95°C (See Derating Curves)
+95°C
Storage Temperature
Dimensions
–55 to +125°C
Physical
2.06" x 2.06" x 0.45" (52 x 52 x 11.4mm)
Shielding
6-sided
Case Connection:
"D12" Models
"D48" Models
Pin 2 (–VIN)
Pin 1 (+VIN)
Case Material:
Cover
Baseplate
Tin plated steel
Ceramic (0.06"/1.52mm)
Pin Material
Weight
Brass, solder coated
1.7 ounces (49.5 grams)
These converters 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.
Absolute Maximum Ratings
Input Voltage:
"D12" Models
"D48" Models
Input Reverse-Polarity Protection
Output Overvoltage Protection:
3.3V Outputs
5V Outputs
12V Outputs
15V Outputs
Output Current
Storage Temperature
Lead Temperature (soldering, 10sec.)
44 Volts
80 Volts
Current must be <10A. Brief duration
only. Fusing recommended.
No protection
6.8 Volts, limited duration
15 Volts, limited duration
18 Volts, limited duration
Current limited. Max. current and
short-circuit duration model
dependent
–55 to +125°C
+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
All 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 UHR 16-20 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
20µF, 50V
20-50µF, 100V
To Reduce Output Ripple
3.3V Outputs
5V Outputs
12/15V Outputs
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 require-
ments. Contact our Applications Engineering Group for additional details.
3
|
|
Share Link: 