UNS-5/3-D12D-C [MURATA]
DC-DC Regulated Power Supply Module, ROHS COMPLIANT, DIP-10;
| 型号： | UNS-5/3-D12D-C |
| 厂家： | 
muRata |
| 描述： | DC-DC Regulated Power Supply Module, ROHS COMPLIANT, DIP-10 |
| 文件： | 总5页 (文件大小：504K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNS Series
Non-Isolated, 3.3V & 5V, 3A DC/DC Converters
Low cost, high efficiency, wide input voltage range and low output
noise define DATEL’s new UNS Series of non-isolated, step-down,
switching DC/DC converters.
FEATURES
PRODUCT OVERVIEW
The 3.3V- and 5V-output devices are, respectively,
90% and 92% efficient. All models are fully line
and load regulated and maintain specified accuracy
over the impressively wide input voltage ranges of
4.75 to 13.6 Volts for 3.3V outputs and 6 to 16.5
Volts for 5V outputs. Output ripple and noise are
typically 50mVp-p.
coated for protection against moisture and dust.
nꢀLow cost
The high efficiency of the UNS Series’ fixed-fre-
quency (190kHz) switching design eliminates the
need for thermally conductive potting compound.
Devices are specified for full-power operation up
to ambient temperatures of +50°C. With derating,
they operate up to +70°C. Calculated MTBF (MIL-
HDBK-217F) is more than 1.6 million hours.
These simple-to-use power converters have no
minimum load requirements. They draw 1mA when
unloaded and a mere 100µA in the standby mode
(On/Off Control turned off). 3.3V models have an
output voltage adjustment range of 2.7 to 3.3 Volts.
5V models are adjustable down to 3.0V.
nꢀSIP or DIP packaging
nꢀ3.3V (10W) or 5V (15W) outputs
nꢀWide range inputs:
4.75-13.6V for 3.3V models
6-16.5V for 5V models
UNS devices are fabricated using proven SMT-
on-pcb construction techniques. The 3.3V and 5V
devices are both available in either lightweight SIP
(2" x 0.4" x 0.8") or DIP (2" x 0.8" x 0.4", 600 mil
spacing between rows) package configurations.
The DIP option is designated by a "D" suffix added
to the part number. All models are conformally
nꢀHigh efficiencies, typically 90-92%
nꢀLow output noise, 50mVp-p
nꢀRemote on/off control
nꢀ100µA "standby" input current
nꢀOutput current limiting
nꢀEMC compliant
nꢀHighly reliable, 100% SMT construction
nꢀConformally coated for harsh environments
SIMPLIFIED SCHEMATIC
+VOUT
+VOUT
TRIM
+VIN
+VIN
–VIN
–VIN
OUTPUT
RETURN
OUTPUT
RETURN
PWM
CONTROLLER
ON/OFF
CONTROL
REFERENCE &
ERROR AMP
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UNS10-15W.B01 Page 1 of 5
UNS Series
Non-Isolated, 3.3V & 5V, 3A DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
Input
Package
R/N (mVp-p)
Regulation (Max.)
Efficiency
IIN
VOUT
IOUT
VIN Nom.
(V)
Range
(V)
(Case/
Model Family
UNS-3.3/3-D5
UNS-3.3/3-D5D
UNS-5/3-D12
(V)
(A)
(mA)
Min.
--
Typ.
90%
90%
92%
92%
Pinout)
Typ.
50
Max.
100
100
100
100
Line
1.0
1.0
1.0
1.0
Load
3.3
3.3
5
3
3
3
3
3.0
3.0
3.0
3.0
7.5
7.5
12
4.75-13.6 1/1400
4.75-13.6 1/1400
B1, P18
B2, P18
B1, P18
B2, P18
50
--
50
6-16.5
6-16.5
1/1330
1/1330
--
UNS-5/3-D12D
5
50
12
--
Typical at TA = +25°C under nominal line voltage and full-load conditions, unless otherwise noted. ꢀ
"D" suffix indicates DIP package.
Listed output regulation specifications describe the total change in output voltage as the input (line)
voltage or output (load) current is varied over its full specified range. Typically, line regulation is
better than 0.5ꢀ and load regulation is better than 1.0ꢀ. Load regulation applies for 0 to 100ꢀ
load conditions.
Ripple/Noise (R/N) measured over a 20MHz bandwidth with a 100µF external input capacitor and
a 220µF external output capacitor. Additional ouput capacitors will lower R/N. See Technical Notes.
Nominal line voltage, no-load/full-load conditions.
PART NUMBER STRUCTURE
MECHANICAL SPECIFICATIONS
Case B1 (SIP)
ꢆꢁꢆꢈ
ꢄꢆꢁꢊꢇ
-
/
-
U NS 3.3 3 D5 D
ꢀꢁꢂꢃ
ꢄꢅꢆꢁꢆꢆꢇ
ꢆꢁꢋꢊ
ꢄꢃꢁꢆꢇ
Output Configuration:
Add "D" suffix for optional
DIP package configuration
U = Unipolar
ꢆꢁꢊꢀ
ꢄꢋꢆꢁꢅꢆꢇ
Input Voltage Range:
D5 = 4.75-13.6 Volts (7.5V nominal)
D12 = 6-16.5 Volts (12V nominal)
Non-Isolated
SIP packaging
ꢀ ꢋ
ꢈ
ꢉ ꢅ
ꢌ ꢃ ꢊ ꢂ ꢀꢆ
Nominal Output Voltage:
3.3 or 5 Volts
ꢆꢁꢈꢆ
ꢄꢃꢁꢌꢋꢇ
ꢆꢁꢆꢋꢅ
ꢄꢆꢁꢌꢉꢇ
Maximum Output Current
in Amps
ꢆꢁꢀ
ꢄꢋꢁꢅ
ꢆꢁꢀꢈ
ꢄꢈꢁꢉꢀꢇ
ꢆꢁꢉꢆꢆ
ꢄꢀꢆꢁꢀꢌꢇ
ꢆꢁꢂꢆꢆ
ꢄꢋꢋꢁꢊꢌꢇ
ꢆꢁꢉꢆꢆ
ꢄꢀꢆꢁꢀꢌꢇ
ꢆꢁꢆꢃ
ꢄꢀꢁꢊꢅꢇ
Important: Do not include the "A" suffix when ordering.
ꢉ %1ꢁ 3 ꢁ
ꢆꢁꢀꢆꢆ ꢄꢋꢁꢅꢉꢇ
ꢉ %1ꢁ 3 ꢁ
ꢆꢁꢀꢆꢆ ꢄꢋꢁꢅꢉꢇ
TEMPERATURE DERATING
Case B2 (DIP)
ꢀꢁꢀꢅ
ꢄꢀꢁꢋꢇ
20
ꢂꢁꢌꢊ
ꢄꢆꢀꢁꢀꢀꢇ
ꢀꢁꢈꢋ
ꢄꢊꢁꢀꢇ
18
ꢀꢁꢀꢈꢆ
ꢄꢀꢁꢉꢃꢇ
16
UNS-5/3-D12
ꢀ
ꢀ
14
12
ꢀꢁꢉꢀ
ꢀꢁꢋꢂ
ꢄꢂꢆꢁꢈꢃ
ꢄꢈꢀꢁꢆꢀꢇ
ꢂ ꢈ
ꢅ
ꢃ ꢆ
ꢉ ꢊ ꢋ ꢌ ꢂꢀ
UNS-3.3/3-D5
10
ꢀꢁꢂꢅ
ꢄꢅꢁꢃꢂꢇ
ꢀꢁꢂꢀ
ꢄꢈꢁꢉꢅꢇ
8
6
4
2
0
ꢀꢁꢂꢃ
ꢄꢅꢁꢆꢇ
34!.$/&&
ꢀꢁꢃꢀꢀ
ꢄꢂꢀꢁꢂꢉꢇ
ꢀꢁꢌꢀꢀ
ꢄꢈꢈꢁꢋꢉꢇ
ꢀꢁꢃꢀꢀ
ꢄꢂꢀꢁꢂꢉꢇ
ꢃ %1ꢁ 3 ꢁ
ꢀꢁꢂꢀꢀ ꢄꢈꢁꢆꢃꢇ
ꢃ %1ꢁ 3 ꢁ
ꢀꢁꢂꢀꢀ ꢄꢈꢁꢆꢃꢇ
ꢀꢁꢃꢀ
ꢄꢂꢀꢁꢂꢉꢇ
ꢍ ./ #/..%#4)/.ꢁ &/2 -%#(!.)#!, 34!"),)49 /.,9ꢁ
$)-%.3)/.3 !2% ). ).#(%3 ꢄ--ꢇ
–10
0
10
20
30
40
50
60
70
80
90
100
INPUT/OUTPUT CONNECTIONS
Ambient Temperature (°C)
Pin
1
Function P18
+Input
Pin
6
Function P18
Trim
Note: Derating curves apply to both SIP and DIP package configurations
2
+Input
7
Output Rtn.
Output Rtn.
+Output
3
-Input
8
4
-Input
9
5
On/Off Control
10
+Output
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UNS10-15W.B01 Page 2 of 5
UNS Series
Non-Isolated, 3.3V & 5V, 3A DC/DC Converters
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted.
T E C H N I C A L N O T E S
Input
Input and Output Capacitors
Input Voltage Range:
"D5" and "D5D" Models
4.75-13.6 Volts (7.5V nominal)
6-16.5 Volts (12V nominal)
Though UNS Series, non-isolated, DC/DC converters have on-board input
and output capacitors (CIN = 6.8µF, COUT = 6.8µF), the majority of applica-
tions will require the installation of additional external I/O capacitance.
"D12" and "D12D" Models
Input Current
See Ordering Guide
Input Filter Type
Capacitive
The total input capacitance functions as a true energy-storage element, and
its optimal value will vary as a function of line voltage. The selected external
input capacitor should have both low ESR and low ESL because, as the
power converter’s input FET switch cycles on and off, the input capacitance
must have the ability to instantaneously supply pulses of relatively high cur-
rent.
Overvoltage Protection
Reverse-Polarity Protection
On/Off Control (Pin 5) ꢀ
Output
None
None
TTL high (or open) = on, low = off
VOUT Accuracy
5ꢀ, maximum
Temperature Coefficient
Ripple/Noise (20MHz bandwidth)
Line/Load Regulation
Efficiency
0.01ꢀ per °C
Rather than install a large, expensive, on-board capacitor that addresses
all possible input-voltage and output-load conditions, DATEL has chosen to
leave out the bulk of the input capacitance so that users may select a cost-
effective component appropriate to their own application. We use a low-ESR
100µF external input capacitor during production testing.
See Ordering Guide
See Ordering Guide
See Ordering Guide
Auto-recovery
Current Limiting
Dynamic Characteristics
Foldback Autorecovery – models with the “A” suffix only
For “A” suffix models only, as output current exceeds the rated limit, cur-
rent will be sharply reduced using the foldback current limit technique. As
current is further reduced to a low value, the converter will automatically
recover normal operation and rated output voltage.
Transient Response (50ꢀ load step)
Switching Frequency
200µsec max. to 2ꢀ of final value
190kHz
Environmental
Operating Temperature:
Without Derating
The exact current where autorecovery occurs is dependent on the reac-
tance of the output load and whether the output load has any “constant
current” characteristics at start up. On “A” suffix models, some types of
heavy “constant current” loads may fail to start up properly. This can be
offset by adding required external capacitance (see below). Normal resistive
loads will autorecover near the rated full current limit.
–10 to +50°C
With Derating
to +70°C (See Derating Curve)
Storage Temperature
–25 to +85°C
Physical
Dimensions: SIP Models
DIP Models
2 x 0.41 x 0.8" (50 x 10.3 x 21mm)
2 x 0.8 x 0.44" (50 x 21 x 11.3mm)
Shielding
None
100
80
60
40
20
0
Case Connection
Pin Material
Weight
None
Gold-plated phosphor bronze
0.35 ounces (10 grams)
UNS Series devices require external input/output capacitors to achieve rated perfor
mance. Listed specifications assume CIN = 100µF and COUT = 220µF.ꢀ
See Technical Notes.
Output Ripple/Noise can be reduced with external capacitors. See Technical Notes.
UNS Series converters have no minimum-load requirements.
Current limiting initiates at approximately 5ꢀ above rated load.
DIP models have a standoff which makes their total above-board height 0.44 inches.
0
50
100
150
Output Current (%)
Absolute Maximum Ratings
Fig. 1 – Current foldback in “A” suffix units
Input Voltage:
"D5" Models
"D12" Models
15 Volts
18 Volts
Output Capacitance is Required
Almost all applications must add external output capacitance to improve
stability, start-up characteristics and to reduce noise. DATEL recommends
approximately 330µF as a starting point using low-ESR capacitors such as
the Sanyo OSCON or Poscap series. Use a capacitor voltage rating twice
the expected output voltage. Lower capacitance and/or higher ESR can
cause instability with inductive loads. Higher capacitance can lead to poor
transient response and sluggish regulation. Mount the capacitor close to
the converter and keep leads short. You may need to experiment.
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
None. See Technical Notes.
None
Current limited. Devices can
withstand an output short circuit
for brief durations only.
Storage Temperature
–25 to +85°C
+300°C
Lead Temperature (soldering, 10 sec.)
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.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UNS10-15W.B01 Page 3 of 5
UNS Series
Non-Isolated, 3.3V & 5V, 3A DC/DC Converters
UNS 5 and 3.3 Volt Series Specification Revision Notice
Notice: As of January 2006, all models now inlude an “A” suffix
marked on the unit to indicate a mandatory change in the PWM. Older
models without the “A” suffix are now obsolete.
+OUTPUT
9, 10
R1
In late 2003, all UNS series 5 Volt output DC/DC converters improved some
specifications and changed the trim values. These same changes were
applied to 3.3 Volt output converters in January 2006. The new converters
are designated with a trailing letter “A” in the model number (Example:
UNS-5/3-D12DA) marked on the unit. This designation is not used in
the ordering model number – it only appears on the device itself. These
changes were unavoidable because of obsolescence of the PWM controller.
Older models without the “A” suffix are no longer available.
ERROR
AMP
RTRIM
6
RLOAD
TRIM
R3
R2
1.195V
7, 8
OUTPUT
RETURN
All specifications are unchanged except the following:
Figure 2. Output Voltage Trimming
Specification
"A" Suffix Models - revised specification
0.2% typ., 1.0% Max.
0.2% typ., 1.5% Max.
0.64mm dia., Tin plated
0.8 Volts
5V and 3V Model Trim Values
Line regulation
Note that if you have not installed trim resistors to existing circuits, there is
no change. Also, if you have installed a trim pot (instead of a fixed external
trim resistor), you may only need to recalibrate the trim pot. The trim pot
value normally does not need to change. If you do not install trim resistors,
leave Trim pin 6 unconnected (open).
Load regulation
Input/output pins
Internal reference voltage, Vref
Overcurrent protection
Foldback current limiting
On the trim circuit diagram, Figure 2, use the following revised table:
Output Trimming
UNS-3.3/3
UNS-3.3/3
UNS-5/3
UNS-5/3
Model Number
5V devices can be trimmed down to 3.0V, and 3.3V devices can be trimmed
down to 2.7V using a single external trimpot or fixed resistor. The trimpot
should be connected between +VOUT (pins 9 and 10) and Trim (pin 6) as
shown in the figure below. The trimpot can be used to determine the value of
a single fixed resistor which can then be connected between pins 9 and 10
and 6. Fixed resistors should be metal-film types with relatively low absolute
TCR’s to ensure stability.
older models "A" models older models "A" models
Output Voltage
Adjustment Range
2.7 to 3.3V
68.68KΩ
39KΩ
2.7 to 3.3V
62.51KΩ
20KΩ
3.0 to 5.0V
124.7KΩ
39KΩ
3.0 to 5.0V
106KΩ
R1 Value
R2 Value
R3 Value
20KΩ
In order to maximize their efficiency, UNS devices employ high-value resis-
tors in their voltage feedback loop. Consequently, the external trimpots must
also be high-resistance devices (1-2 megohms). If the trimpots are acciden-
tally turned to their 0Ω stops, it will not damage the converters; however, the
output voltage will be pulled down to an unstable level. Use care not to trim
the output voltage below the levels indicated in the accompanying table.
10KΩ
0Ω (short)
0.8V
10KΩ
0KΩ (short)
0.8V
Voltage Refer-
ence, Vref
1.195V
1.195V
RoHS-Compliance
RoHS (Reduction of Hazardous Substances) compliance is indicated
solely by the manufacturing date code. All UNS-5V converters with date
code “WM” (December 2005) or later are RoHS-compliant. All UNS-3.3V
converters with date code “VF” (June 2006) or later are RoHS-compliant.
Non-RoHS converters are no longer available. All RoHS models also include
the “A” suffix changes.
“A” Model Trim Equation
Rtrim = (R1 x R2 (Vout – Vref)) / (R1 x Vref – R2 (Vout – Vref)) – R3
(R3 = 0Ω for “A” models)
Finally, please note that the trailing “A” suffix in the model number is not
used for ordering these converters. Use the standard model numbers
without the “A” suffix.
Please note carefully that RoHS units do not include a “-C” suffix.
Date Codes
The manufacturing date code is a 2-letter code as follows:
First letter (year):
Y:2003, X:2004, W:2005, V:2006, U:2007, T:2008, S:2009, R:2010, Q:2011,
P:2012, O:2013, N:2014, M:2015
Second letter (month):
A:January, B:February, C:March, D:April, E:May, F:June, G:July, H:August, I:
not used, J:September, K:October, L:November, M:December
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UNS10-15W.B01 Page 4 of 5
UNS Series
Non-Isolated, 3.3V & 5V, 3A DC/DC Converters
The On/Off Control Pin
disables the converter. Control voltages should be referenced to pins 3 and 4
(–Input). For best results, use a mechanical relay or open-collector logic.
For normal operation, pin 5 should be left open. This pin has an internal
250kΩ pull-up resistor to +5V (or to +VIN if +VIN < 5V). For dynamic control
of the converters’ on/off functionality, a TTL logic high (+2.4V minimum,
+5V maximum or +VIN maximum if +VIN < 5V, 100µA max.) applied to pin 5
enables the converter, and a quasi-TTL logic low (0 to +0.5V, 100µA max.)
When the converter is turned off, its input "standby" current will be approxi-
mately 100µA. Applying a voltage that is greater than VIN to the On/Off Con-
trol pin, or applying any voltage to this pin when no input power is applied to
the converter, may cause permanent damage to the converter.
T Y P I C A L P E R F O R M A N C E C U R V E S
100
98
96
94
92
100
V
IN = 4. 75V
98
96
94
92
90
88
86
84
V
IN = 6V
90
88
86
84
V
IN = 12V
V
IN = 7. 5V
V
IN = 13. 6V
V
IN = 16. 5V
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
5V Output Current (Amps)
3.3V Output Current (Amps)
Efficiency vs. Output Current and Input Voltage (Model UNS-5/3)
Efficiency vs. Output Current and Input Voltage (Model UNS-3.3/3)
USA:
Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com
Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
UK:
Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
Website: www.murata-ps.jp
www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED
Murata Power Solutions, Inc. 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
China:
Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
notice.
© 2008 Murata Power Solutions, Inc.
04/09/08
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_UNS10-15W.B01 Page 5 of 5
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