UWR-5/7-D12A-C Murata Power Solutions Inc, UWR-5/7-D12A-C Datasheet - Page 4

• Manufacturer Part Number: UWR-5/7-D12A-C
• Description: CONV DC/DC 5V 7A SINGLE A T/H
• Manufacturer: Murata Power Solutions Inc
• Series: UWRr
• Type: Isolatedr

Specifications of UWR-5/7-D12A-C

• Number Of Outputs: 1
• Output: 5V
• Power (watts): 35W
• Mounting Type: Through Hole
• Voltage - Input: 10 ~ 18V
• Package / Case: 8-DIP Module (7 Leads)
• 1st Output: 5 VDC @ 7A
• Size / Dimension: 2.00" L x 2.00" W x 0.45" H (50.8mm x 50.8mm x 11.4mm)
• Power (watts) - Rated: 35W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 89.5%
• Approvals: CE, cUL, EN, UL
• Output Power: 35 W
• Input Voltage Range: 10 V to 18 V
• Output Voltage (channel 1): 5 V
• Output Current (channel 1): 7 A
• Isolation Voltage: 1.5 KV
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 811-1927-5

Floating Outputs
with respect to the input. Designers will normally use the –Output (pin 7)
as the ground/return of the load circuit. You can, however, use the +Output
(pin 6) as ground/return to effectively reverse the output polarity.
Minimum Output Loading Requirements
UWR 26-40 Watt converters employ a synchronous-rectifier design topology.
All models regulate within spec and are stable under no-load conditions.
Filtering and Noise Reduction
All UWR 26-40 Watt DC/DC Converters achieve their rated ripple and noise
specifications using the external output capacitor specified in the Perfor-
mance/Functional Specifications table. In critical applications, input/output
noise may be further reduced by installing additional external I/O caps.
Input capacitors should be selected for bulk capacitance, low ESR and high
rms-ripple-current ratings. Input capacitors serve as energy-storage devices
to minimize variations in line voltage caused by transient IR drops in PCB
conductors from backplane to the DC/DC. Output capacitors should be
selected for low ESR and appropriate frequency response. All caps should
have appropriate voltage ratings and be mounted as close to the converters
as possible. The most effective combination of external I/O capacitors will be
a function of your particular load and layout conditions.
Input Voltage:
On/Off Control (pin 4) Max. Voltages
Input Reverse-Polarity Protection
Output Current
Case Temperature
Storage Temperature
Lead Temperature
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.
T E C H N I C A L
Since these are isolated DC/DC converters, their outputs are "floating,"
Continuous:
Transient (100msec):
Referenced to –Input (pin 2)
D12A Models
D24A Models
D48A Models
D12A Models
D24A Models
D48A Models
No Suffix
"N" Suffix
N O T E S
Absolute Maximum Ratings
18 Volts
36 Volts
75 Volts
25 Volts
50 Volts
100 Volts
+V
+V
Current must be <5 Amps. Brief
duration only. Fusing recommended.
Current limited. Devices can
withstand sustained output short
circuits without damage.
+100°C
–40 to +120°C
See soldering guidelines
IN
IN
www.murata-ps.com
Single Output, High-Density, 3.3V
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. Fuses should also be
used if the possibility of sustained, non-current-limited, input-voltage polarity
reversals exists. For DATEL A-Series UWR 26-40 Watt DC/DC Converters,
you should use slow-blow type fuses with values no greater than the following.
Start-Up and Undervoltage Shutdown
Under normal start-up conditions, UWR 26-40W converters will not begin
to regulate properly until the ramping input voltage exceeds the Start-Up
Threshold. Once operating, devices will turn off when the applied voltage
droops below the Undervoltage Shutdown point. Devices will remain off as
long as the undervoltage condition continues. Units will automatically restart
when the applied voltage is brought back above the Start-Up Threshold.. The
hysteris is built into the function avoids an indeterminate on/off condition at
a single input voltage . See Performance/Functional Specifications table for
actual limits.
On/Off Control
to operate with either polarity. Positive-polarity devices (standard, no
part-number suffix) are enabled when pin 4 is left open or is pulled high
(+13V to V
polarity devices are disabled when pin 4 is pulled low (0-0.8V with respect
to –Input). Negative-polarity devices are off when pin 4 open or pulled high
(3.3V to +V
The input-side, remote On/Off Control function (pin 4) can be ordered
UWR-3.3/8-D12
UWR-3.3/9-D24
UWR-3.3/9-D48
UWR-5/7-D12
UWR-5/8-D24
UWR-5/8-D48
IN
IN
Figure 2. Driving the Positive Polarity On/Off Control Pin
applied with respect to –Input, pin 2, (see Figure 2). Positive-
), and on when pin 4 is pulled low (0-0.8V). See Figure 3.
Model
1
4
2
Technical enquiries email: [e-mail], tel:
OUT
+INPUT
ON/OFF
CONTROL
–INPUT
and 5 V
UWR 26-40W Series
OUT
Fuse Value
, 26-40 Watt, DC/DC Converters
7 Amps
4 Amps
2 Amps
8 Amps
5 Amps
3 Amps
MDC_UWR26-40W_B05 Page 4 of 10
13V CIRCUIT
5V CIRCUIT
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