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UEI の電気的特性と機能

UEIのメーカーはMurata Manufacturingです、この部品の機能は「50-60W Isolated Wide-Range DC/DC Converters」です。


製品の詳細 ( Datasheet PDF )

部品番号 UEI
部品説明 50-60W Isolated Wide-Range DC/DC Converters
メーカ Murata Manufacturing
ロゴ Murata Manufacturing ロゴ 




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UEI Datasheet, UEI PDF,ピン配置, 機能
www.murata-ps.com
www.DataSheet4U.com
UEI Series
50-60W Isolated Wide-Range DC/DC Converters
Featuring a full 50-60 Watt output in 2.9 square inches of board area,
the UEI series isolated DC/DC converter family offers efficient
regulated DC power for printed circuit board mounting.
Typical unit
FEATURES
„ Small footprint DC/DC converter, ideal for high
current applications
„ Industry standard 1.50˝ x 1.90˝ x 0.38˝ open
frame package and pinout
„ Wide range input voltages 9-36 and 18-75Vdc
„ Assembly and attachment for RoHS standards
„ Isolation up to 2250 VDC (basic)
„ Up to 50-60W total output power with
overtemperature shutdown
„ High efficiency synchronous rectifier forward
topology
„ Stable no-lead operation with no required
external components
„ –40 to +85°C temperature range with derating
„ Designed to meet UL60950-1, CSA-C22.2 No.
234, EN60950-1 safety approvals
„ Extensive self-protection shut down features
„ RoHS6 compliant
PRODUCT OVERVIEW
Wide range 4:1 inputs on the 1.50" x 1.90" x
0.38" converter are either 9 to 36 Volts DC (Q12
models) or 18 to 75 Volts DC (Q48 models), ideal
for battery-powered and telecom equipment.
Fixed output voltages from 3.3 VDC to 15 VDC are
regulated to within ±0.05% and may be trimmed
within ±10% of nominal output. Applications
include small instruments, computer-based
systems, data communications equipment, remote
sensor systems, vehicle and portable electronics.
The UEI 50-60W Series includes full magnetic
and optical isolation up to 2250 Volts DC (basic
insulation). For connection to digital systems, the
outputs offer fast settling to current step loads
and tolerance of higher capacitive loads. Excellent
ripple and noise specifications assure compatibil-
ity to circuits using CPU’s, ASIC’s, programmable
logic and FPGA’s. No minimum load is required.
For systems requiring controlled startup/shut-
down, an external switch, transistor or digital logic
may be used to activate the remote On/Off control.
Remote Sense inputs compensate for resistive line
drops at high currents.
A wealth of self-protection features avoid both
converter and external circuit problems. These
include input undervoltage lockout, input overvolt-
age and overtemperature shutdown. The outputs
current limit using the “hiccup” autorestart
technique and the outputs may be short-circuited
indefinitely. Additional features include output
overvoltage and reverse conduction elimination.
The synchronous rectifier forward topology
offers high efficiency for minimal heat buildup
and “no fan” operation. The open frame design is
also available under special quantity order with
an encapsulation shell and thermally-conductive
potting compound. This option offers additional
cooling in low-airflow, high temperature applica-
tions.
SIMPLIFIED SCHEMATIC
For full details go to
www.murata-ps.com/rohs
+VIN
–VIN
On/Off
Control
Control
Typical topology is shown.
GATE
DRIVE
ISOLATION
BARRIER
OPTO
ISOLATION
Reference, trim &
Error Amplifier
+VOUT
–VOUT
+SENSE
TRIM
–SENSE
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_UEI Series 50-60W.B24 Page 1 of 12

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MECHANICAL SPECIFICATIONS
INPUT/OUTPUT CONNECTIONS, WITH SENSE
Pin Function P52 Pin Function P52
5 +Sense In
1 Positive Input
6 Positive Output
2 Negative Input
No pin
3 No pin
7 Negative Output
4 On/Off Control In
8 –Sense In
9 Trim
Important: If sense inputs are not connected to a remote load, connect them
to their respective VOUT pins at the converter.
PHYSICAL CHARACTERISTICS
Outline dimensions
Pin material
Pin diameter
Pin Finish
Weight
Electromagnetic interference
Flammability Rating
Safety
See mechanical specs
Copper alloy with gold plate
over nickel underplate
0.04" (1.016mm)
Gold plate
TBD
FCC part 15, class B,
EN55022 (may need filter)
UL 94V-0
IEC/EN/UL/cUL 60950-1,
CSA-C22.2 No. 60950-1
TOP VIEW
1.90
(48.3)
9
48
7
2 1.50 (38.1)
16
5
UEI Series
50-60W Isolated Wide-Range DC/DC Converters
INPUT/OUTPUT CONNECTIONS, WITHOUT SENSE
Pin Function P51 Pin Function P51
5 No pin
1 Positive Input
6 Positive Output
2 Negative Input
No pin
3 No pin
7 Negative Output
4 On/Off Control In
8 No pin
9 Trim
Pins 5 and 8 are omitted for models without sense inputs.
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
TOP VIEW
2.00
(50.8)
9
48
7
2
16
5
1.60 (40.6)
SIDE VIEW
.188
4.78
0.38 (9.7)
.040±.002 PINS
1.02±0.05
.010 MIN
0.25 MIN
CLEARANCE
.100
2.54
CL
.100
2.54
1
.500
12.70
2
4
0.05 (1.3)
BOTTOM VIEW
.900
22.86
CL
5
6
7
8
.200
5.08
.400
10.16
.400
10.16
.600
15.24
CL
CL
1.800
45.72
9 .200
5.08
0.05 (1.3)
UEI50 Open Frame
50-60W
.188
4.78
.100
2.54
.100
2.54
CL
.500
12.70
SIDE VIEW
0.42 (10.7)
.040±.002 PINS
1.02±0.05
BOTTOM VIEW
.900
22.86
CL
5
16
2
7
8
49
CL
1.800
45.72
.02 STANDOFFS
0.5
.200
5.08
.400
10.16
.400
10.16
.600
15.24
CL
.200
5.08
UEI50 'Z' Series
50-60W
(plastic case–preliminary)
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_UEI Series 50-60W.B24 Page 3 of 12


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UEI 電子部品, 半導体
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UEI Series
50-60W Isolated Wide-Range DC/DC Converters
APPLICATION NOTES
Input Fusing
Certain applications and/or safety agencies may require fuses at the inputs of
power conversion components. Fuses should also be used when there is the
possibility of sustained input voltage reversal which is not current-limited. We
recommend a time delay fuse installed in the ungrounded input supply line
with a value which is approximately twice the maximum line current, calcu-
lated at the lowest input voltage.
The installer must observe all relevant safety standards and regulations. For
safety agency approvals, install the converter in compliance with the end-user
safety standard, i.e. IEC/EN/UL 60950-1.
times will vary with input source impedance, external input capacitance, input volt-
age slew rate and final value of the input voltage as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of its
PWM controller at power up, thereby limiting the input inrush current.
The On/Off Remote Control interval from On command to VOUT regulated
assumes that the converter already has its input voltage stabilized above the
Start-Up Threshold before the On command. The interval is measured from the
On command until the output enters and remains within its specified accuracy
band. The specification assumes that the output is fully loaded at maximum
rated current. Similar conditions apply to the On to VOUT regulated specification
such as external load capacitance and soft start circuitry.
Input Reverse-Polarity Protection
If the input voltage polarity is reversed, an internal diode will become forward
biased and likely draw excessive current from the power source. If this source
is not current-limited or the circuit appropriately fused, it could cause perma-
nent damage to the converter.
Input Under-Voltage Shutdown and Start-Up Threshold
Under normal start-up conditions, converters will not begin to regulate properly
until the ramping-up input voltage exceeds and remains at the Start-Up
Threshold Voltage (see Specifications). Once operating, converters will not
turn off until the input voltage drops below the Under-Voltage Shutdown Limit.
Subsequent restart will not occur until the input voltage rises again above the
Start-Up Threshold. This built-in hysteresis prevents any unstable on/off opera-
tion at a single input voltage.
Users should be aware however of input sources near the Under-Voltage
Shutdown whose voltage decays as input current is consumed (such as capaci-
tor inputs), the converter shuts off and then restarts as the external capacitor
recharges. Such situations could oscillate. To prevent this, make sure the operat-
ing input voltage is well above the UV Shutdown voltage AT ALL TIMES.
Start-Up Time
Assuming that the output current is set at the rated maximum, the Vin to Vout Start-
Up Time (see Specifications) is the time interval between the point when the ramping
input voltage crosses the Start-Up Threshold and the fully loaded regulated output
voltage enters and remains within its specified accuracy band. Actual measured
Input Source Impedance
These converters will operate to specifications without external components,
assuming that the source voltage has very low impedance and reasonable
input voltage regulation. Since real-world voltage sources have finite imped-
ance, performance is improved by adding external filter components. Some-
times only a small ceramic capacitor is sufficient. Since it is difficult to totally
characterize all applications, some experimentation may be needed. Note that
external input capacitors must accept high speed switching currents.
Because of the switching nature of DC/DC converters, the input of these
converters must be driven from a source with both low AC impedance and
adequate DC input regulation. Performance will degrade with increasing input
inductance. Excessive input inductance may inhibit operation. The DC input
regulation specifies that the input voltage, once operating, must never degrade
below the Shut-Down Threshold under all load conditions. Be sure to use
adequate trace sizes and mount components close to the converter.
I/O Filtering, Input Ripple Current and Output Noise
All models in this converter series are tested and specified for input reflected
ripple current and output noise using designated external input/output compo-
nents, circuits and layout as shown in the figures below. External input capaci-
tors (CIN in the figure) serve primarily as energy storage elements, minimizing
line voltage variations caused by transient IR drops in the input conductors.
Users should select input capacitors for bulk capacitance (at appropriate
frequencies), low ESR and high RMS ripple current ratings. In the figure below,
TO
OSCILLOSCOPE
+
VIN
+
LBUS
CBUS
CURRENT
PROBE 1
+INPUT
CIN
2
−INPUT
CIN = 33μF, ESR < 700mΩ @ 100kHz
CBUS = 220μF, ESR < 100mΩ @ 100kHz
LBUS = 12μH
Figure 2. Measuring Input Ripple Current
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_UEI Series 50-60W.B24 Page 6 of 12

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