UNR-2.5/8-D5 [MURATA]
DC-DC Regulated Power Supply Module, 1 Output, 20W, Hybrid, PACKAGE-6;
| 型号： | UNR-2.5/8-D5 |
| 厂家： | 
muRata |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 20W, Hybrid, PACKAGE-6 |
| 文件： | 总6页 (文件大小：263K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
®
Not Recommended
For New Designs
Contact DATEL
INNOVATION and EXCELLENCE
Single Output
UNR Series
Non-Isolated, 1.8/2.5/3.3VOUT
8 and 10 Amp DC/DC Converters
As supply voltages trend lower and load currents increase, centralized power
Features
becomes more impractical. The tight accuracy, low noise and quick transient
response demanded by today's low voltage CPU's, ASIC's and DSP's make power
processing at the point of use the only viable solution. The UNR 18-33W series
provides a complete line of non-isolated DC/DC converters to satisfy this require-
ment. With input voltages of 5V (-D5 models) and 12V (-D12 models) these convert-
ers offer standard output voltages of 1.8, 2.5 and 3.3 Volts and up to 10 Amps of
output current in through-hole 1" x 2" metal cases.
With on/off control as a standard feature, these non-isolated converters exploit
full synchronous rectification, and 100% automated assembly to deliver high effi-
ciencies (to 91%) and low noise at low cost.
These versatile DC/DC’s are fully line and load regulated. They feature quick
transient response (50μsec), user-optional on/off control (for power sequencing),
and output overcurrent detection and shutdown ("hiccup" technique with auto-
recovery). Their impressive guaranteed efficiencies enable them to deliver fully rated
output power from +40/50/60°C (ambient) without supplemental cooling.
If your high current requirements have made the use of inefficient linear regula-
tors impractical, take a look at one of DATEL’s switching buck regulators. Their
high efficiency, ease-of-use, long-term reliability, and overall cost effectiveness will
impress you. Safety agency approvals and EMC characterizations are currently in
progress.
Input ranges of 4.75-5.5V or 10.8-13.6V
Output voltages of 1.8/2.5/3.3V
8 and 10 Amp output current models
Non-isolated, full synchronous topology
1" x 2" through-hole package
High efficiency to 91%; Low noise
200kHz switching frequency
–40 to +40/50/60°C ambient operation with
no derating
Remote on/off control; Output overcurrent
detection
IEC950/EN60950/UL1950 approval
+VIN
+VOUT
INPUT
RETURN
OUTPUT
RETURN
➀
LOGIC
GROUND
VOLTAGE
BOOST
OVERCURRENT
DETECTION
+VCC
ON/OFF
CONTROL
PWM
CONTROLLER
REFERENCE &
ERROR AMP
➀ -D5 models only.
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
•
Email: sales@datel.com • Internet: www.datel.com
N O N - I S O L A T E D , 1 8 - 3 3 W ,
5
&
1 2 V - I N P U T D C / D C C O N V E R T E R S
UNR Series
➀
Performance Specifications and Ordering Guide
Output
Input
Package
R/N (mVp-p)
➁
Regulation (Max.)
Efficiency
VOUT
IOUT
VIN Nom.
Range
(Volts)
I
IN
➃
(Case,
Model
(Volts)
(Amps)
Typ.
70
40
40
40
40
40
40
60
60
Max.
100
80
Line
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
Load
➂
(Volts)
(mA/mA)
150/4190
100/4440
150/5620
100/5740
100/7250
100/1890
100/2410
50/2440
Min.
82ꢀ
86ꢀ
85ꢀ
88ꢀ
86ꢀ
85ꢀ
83ꢀ
86ꢀ
86ꢀ
Typ.
86ꢀ
90ꢀ
89ꢀ
92ꢀ
91ꢀ
88ꢀ
86ꢀ
91ꢀ
89ꢀ
Pinout)
UNR-1.8/10-D5
UNR-2.5/8-D5
UNR-2.5/10-D5
UNR-3.3/8-D5
UNR-3.3/10-D5
UNR-2.5/8-D12
UNR-2.5/10-D12
UNR-3.3/8-D12
UNR-3.3/10-D12
1.8
10
8
0.5ꢀ
5
5
4.75-5.5
4.75-5.5
4.75-5.5
4.75-5.5
4.75-5.5
10.8-13.6
10.8-13.6
10.8-13.6
10.8-13.6
C5A2, P9
C5A1, P9
C5A2, P9
C5A1, P9
C5A2, P9
C5A1, P9
C5C2, P9
C5A1, P9
C5C2, P9
2.5
0.5ꢀ
0.5ꢀ
2.5
10
8
80
5
3.3
80
0.5ꢀ
5
3.3
10
8
80
0.5ꢀ
5
2.5
80
0.625ꢀ
0.625ꢀ
0.625ꢀ
0.625ꢀ
12
12
12
12
2.5
10
8
80
3.3
120
120
3.3
10
50/3090
➁ Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth. Output noise may be further
reduced by installing additional external output caps. See I/O Filtering and Noise Reduction.
➂ These devices have no minimum-load requirements and will regulate under no-load conditions.
➃ Nominal line voltage, no-load/full-load conditions.
➀ Typical at TA = +25°C under nominal line voltage and full-load conditions, unless
otherwise noted. All models are tested and specified with an external 22μF output capacitor
with a 200mΩ ESR and a 470μF input capacitor with 6Arms ripple-current rating and 20mΩ
ESR. See I/O Filtering and Noise Reduction for more details.
P A R T N U M B E R S T R U C T U R E
M E C H A N I C A L S P E C I F I C A T I O N S
2.00
(50.80)
U NR
-
1.8
/
10
-
D5
METAL CASE
Case C5A1, A2, C2
*
Output Configuration:
U = Unipolar
Input Voltage Range:
INSULATED BASE
Non-Isolated
D5 = 4.75 to 5.5 Volts (5V nominal)
D12 = 10.8 to 13.6 Volts (12V nominal)
0.20 MIN
(5.08)
Nominal Output Voltage:
1.8, 2.5 or 3.3 Volts
1.800
(45.72)
0.10
(2.54)
Maximum Rated Output
Current in Amps
1
2
3
0.300
(7.62)
0.800
(20.32)
1.00
(25.40)
4
5
6
0.400
(10.16)
T E M P E R A T U R E D E R A T I N G
BOTTOM VIEW
12
0.200
(5.08)
0.10
(2.54)
DIMENSIONS ARE IN INCHES (MM)
UNR-2.5/10-D5
UNR-3.3/10-D5
10
8
CASE C5A1
*CASE HEIGHT: 0.39 (9.91)
PIN DIAMETERS:
PINS 1-6: 0.040 0.002 (1.016 0.051)
UNR-2.5/8-D5
UNR-2.5/10-D12
UNR-3.3/10-D12
CASE C5A2
*CASE HEIGHT: 0.39 (9.91)
PIN DIAMETERS:
6
4
2
0
PINS 1-2: 0.040 0.002 (1.016 0.051)
PINS 3-6: 0.062 0.002 (1.575 0.051)
I/O Connections
UNR-1.8/8-D5
UNR-2.5/8-D12
UNR-3.3/8-D12
CASE C5C2
*CASE HEIGHT: 0.48 (12.19)
PIN DIAMETERS:
Pin
Function P9
Logic Ground
On/Off Control
+Output
1
2
3
4
5
6
PINS 1-2: 0.040 0.002 (1.016 0.051)
PINS 3-6: 0.062 0.002 (1.575 0.051)
Output Return
Input Return
+Input
–40
0
10
20
30
40
50
60
70
80
90
100
Ambient Temperature (˚C)
2
N O N - I S O L A T E D , 1 8 - 3 3 W ,
5 & 1 2 V - I N P U T D C / D C C O N V E R T E R S
UNR Models
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted.
Absolute Maximum Ratings
➀
Input Voltage:
Continuous:
D5 Models
Input
Input Voltage Range
7 Volts
15 Volts
D12 Models
D5 Models
4.75-5.5 Volts (5V nominal)
D12 Models
10.8-13.6 Volts (12V nominal)
See Ordering Guide
Capacitive
Input Reverse-Polarity Protection
Input/Output Overvoltage Protection
Output Current
None
None
Input Current ➁
Input Filter Type
Current limited. Devices can
withstand a sustained output
short circuit without damage.
Overvoltage Protection
Reverse-Polarity Protection
On/Off Control: ➂ ➃
None
None
Storage Temperature
–40 to +105°C
+300°C
TTL high (or open) = on, low = off
Lead Temperature (Soldering, 10 sec.)
Output
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.
VOUT Accuracy (50ꢀ load):
1.8VOUT Models
2ꢀ of VOUT maximum
1ꢀ of VOUT maximum
2.5/3.3VOUT Models
Ripple/Noise (20MHz BW) ➄
Line/Load Regulation
Efficiency
See Ordering Guide
See Ordering Guide
See Ordering Guide
T E C H N I C A L N O T E S
Overcurrent Protection: ➁
8 Amp -D5 Models
Return Current Paths
9-15 Amps (12 Amps typical)
11-18 Amps (15 Amps typical)
9-15 Amps (12 Amps typical)
11-19 Amps (14 Amps typical)
These are non-isolated DC/DC converters. The Input Return, Output Return
and Logic Ground pins are all connected together internally. To the extent
possible, all input and load currents should be returned through the Input
Return and Output Return, respectively (via low-impedance runs). Any con-
trol signals applied to the On/Off Control pin should be referenced to Logic
Ground. The internal trace leading to Logic Ground is not designed to carry
high current. Consequently, devices should never be installed in a manner
that results in high current flow through Logic Ground (i.e., the Input/Output
Return pins should never be left open or connected via high-impedance
paths).
10 Amp -D5 Models
8 Amp -D12 Models
10 Amp -D12 Models
Dynamic Characteristics
Transient Response (50-100ꢀ load):
1.8VOUT -D5 Models
60μsec to 2.5ꢀ VOUT
50μsec to 2.5ꢀ VOUT
50μsec to 1ꢀ VOUT
2.5-3.3VOUT -D5 Models
2.5-3.3VOUT -D12 Models
Switching Frequency
200kHz ( 20kHz)
Environmental
Operating Temperature (Ambient):
I/O Filtering and Noise Reduction
Without Derating
See Derating Curves
to +100°C (See Derating Curves)
–40 to +105°C
All models in the UNR 18-33W Series converters are tested and specified
with external 470μF input capacitors (20mΩ ESR, 6Arms ripple-current
rating) and external 22μF output capacitors (200mΩ ESR). In critical applica-
tions, input/output ripple/noise may be further reduced by installing additional
I/O caps.
With Derating
Storage Temperature
Physical
Dimensions:
D5 Models
2" x 1" x 0.39" (51 x 25 x 9.9mm)
2" x 1" x 0.48" (51 x 25 x 12.2mm)
2" x 1" x 0.39" (51 x 25 x 9.9mm)
2" x 1" x 0.48" (51 x 25 x 12.2mm)
2.5V -D12 Models
3.3/8 -D12 Models
3.3/10 -D12 Models
External input capacitors serve primarily as energy-storage elements. They
should be selected for bulk capacitance (at appropriate frequencies), low
ESR, and high rms-ripple-current ratings. Input capacitors compensate for
I·R drops on input lines and power sources. Providing a solid input voltage
will greatly reduce the need for capacitors. The switching nature of modern
DC/DC converters requires that dc input voltage sources have low ac imped-
ance, as highly inductive source impedances can affect system stability.Your
specific system configuration may necessitate additional considerations.
Shielding
5 sided
Case Connection
Case Material
Pin 5 (Input Return)
Corrosion-resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Pin Material
Brass, solder coated
Output ripple/noise (also referred to as periodic and random deviations or
PARD) can be reduced below published specifications by using filtering
techniques, the simplest of which is the installation of additional external
output capacitors. Output capacitors function as true filter elements and
should be selected for bulk capacitance, low ESR, and appropriate frequency
response. Any scope measurements of PARD should be made directly at the
DC/DC output pins with scope probe ground less than 0.5" in length.
Weight
C5A1, C5A2 Cases
C5C2 Case
1.4 ounces (39.7 grams)
1.76 ounces (49.4 grams)
➀ All models are tested and specified with an external 470μF input capacitor rated for 6Arms
ripple current and an external 22μF output capacitor with an ESR lower than 200mΩ.
These devices have no minimum-load requirements and will regulate under no-load conditions.
➁ No-load/full-load conditions. When the unit is off, the input "standby" current is typically 10mA.
➂ Applying an external voltage to the On/Off Control pin when no input voltage is applied can
cause permanent damage to the converter.
All external capacitors should have appropriate voltage ratings and be
located as close to the converters as possible. Temperature variations for all
relevant parameters should be taken into consideration.
➃ See On/Off Control Functionality.
➄ Output noise may be further reduced with additional external capacitors across the output
terminals. Caps should have low ESR (typically 60mΩ) and be located as close to the unit
as possible.
➅ Current limiting initiates at approximately 30ꢀ above rated load. Under short-circuit conditions,
output current folds back to approximately 1A and remains there until the short is removed.
3
N O N - I S O L A T E D , 1 8 - 3 3 W ,
5 & 1 2 V - I N P U T D C / D C C O N V E R T E R S
UNR Series
The most effective combination of external I/O capacitors will be a function
of your line voltage and source impedance, as well as your particular load
and layout conditions. Our Applications Engineers can recommend potential
solutions and discuss the possibility of our modifying a given device’s inter-
nal filtering to meet your specific requirements. Contact our Applications
Engineering Group for additional details.
Input Overvoltage and Reverse-Polarity Protection
UNR 18-33W Series DC/DC converters do not incorporate either input over-
voltage or input reverse-polarity protection. Input voltages in excess of the
listed absolute maximum ratings and input polarity reversals of longer than
"instantaneous" duration can cause permanent damage to these devices.
On/Off Control Functionality
The On/Off Control pin has an internal 5kΩ pull-up resistor to +VIN. It can be
driven with any logic circuit capable of meeting the following requirements:
Logic "0" = 0 to +0.8V; Logic "1" = +2.0V to +VIN; IH (@VIN = +2.0V) = –0.7mA;
IIL (@VIN = 0V) = –1.1mA. Open collector logic or a single NPN drive
transistor can be used. The drive circuit should be rated for more than 5.5V.
Applying a voltage to pin 2 when no input power is applied to the converter
can cause permanent damage to the converter.
®
®
INNOVATION and EXCELLENCE
ISO 9001 REGISTERED
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
DS-0475
11/01
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
DATEL GmbH München, Germany Tel: 89-544334-0
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
Internet: www.datel.com
Email: sales@datel.com
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to
make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
4
UNR-3.3/10-D5-C @ 3.3V, 10 Amp, Single-Output, Non-Isolated DC/DC Converter with 4.75-5.5V Input Range. @ Murata Power Solutions
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Product Specifications for: UNR-3.3/10-D5-C
3.3V, 10 Amp, Single-Output, Non-Isolated DC/DC Converter with
4.75-5.5V Input Range.
Not recommended for new design-ins. RoHS Compliant : Use the UNR-
3.3/10-D5
Product Specifications:
Typical @ +25C under nominal line (5V) voltage and full-load conditions.
INPUT
4.75 - 5.5 Volts
100/7250
Input Voltage Range
Input Current
OUTPUT
V1OUT
The tight accuracy, low noise and quick
transient response demanded by today's
low voltage CPU's, ASIC's and DSP's
make power processing at the point of
use the only viable solution. The UNR 18-
33W series provides a complete line of
non-isolated DC/DC converters to satisfy
this requirement.
3.3 Volts
10 Amps
40 (mVp-p, typ.)
±0.1%
I1OUT
Ripple/Noise
Line Regulation
Load Regulation
±0.5%
0 Volts
Isolation
ENVIRONMENT
Efficiency (typ.)
Where To Buy
91%
1 x 2 x 0.39 (See data sheet)
-40 to +50°C
Package
Operating Temperature
Product Data Sheet
MECHANICAL SPECIFICATION
Certificate of Compliance
Contact Technical Support
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UNR-3.3/10-D5-C @ 3.3V, 10 Amp, Single-Output, Non-Isolated DC/DC Converter with 4.75-5.5V Input Range. @ Murata Power Solutions
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Specifications are subject to change without notice, see product data sheet for most recent
information. Murata Power Solutions makes no representation that the use of its products or
the use of other technical information contained herein, will not infringe upon existing or
future patent rights. The descriptions contained herein do not imply the granting of licenses
to make, use, or sell equipment constructed in accordance therewith.
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