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PWR1546AC
5 Watts Regulated DC/DC Converters
FEATURES
1mVp-p MAXIMUM OUTPUT NOISE
5W RATED OUTPUT POWER
SHORT-CIRCUIT PROTECTION
SIX-SIDED SHIELDING
INTERNAL INPUT AND OUTPUT
FILTERING
FULLY REGULATED
APPLICATIONS
HIGH RESOLUTION DATA ACQUISTION
PRECISION TEST EQUIPMENT
HIGH GAIN AMPLIFIERS
PRECISION INSTRUMENTATION
DESCRIPTION
The PWR1546A has a maximum of 1mVp-p output noise. This unit
incorporates input and output filtering along with an internal shield,
giving full six-sided shielding that keeps unwanted radiated noise
from your circuit. No external parts are required to meet the 1mVp-p
maximum guaranteed output noise.
The PWR1546A is a miniature DC/DC converter providing dual isolated
±15V
DC
outputs from a single +5V
DC
input. Each output will supply
full-rated current over the entire specification range. Each output is
regulated and is protected against all shorts. The isolation barrier
is guaranteed to be 750V
DC
.
Surface-mounted components and thermal encapsulant allow superior
reliability and excellent thermal dissipation. The calculated MTTF (per
MIL-HDBK-217 Rev. E, Circuit-Stress Analysis Method) is in excess
of 100 years at 25°C.
SIMPLIFIED CIRCUIT DIAGRAM
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MDC_PWR1546AC.C02
Page 1 of 4
PWR1546AC
COMMON SPECIFICATIONS
Specifications typical at T
A
= +25°C, rated input voltage, rated output current unless otherwise noted.
PARAMETER
INPUT
Rated Voltage
Voltage Range
Current
Reflected Ripple Current
ISOLATION
Rated Voltage
Test Voltage
Resistance
Capacitance
Leakage Current
OUTPUT
Rated Voltage
Voltage Setpoint Accuracy
Voltage Balance
Temperature Coefficient
Rated Current
Transient Recovery Time
REGULATION
Line
Load
OUTPUT NOISE
Ripple and Noise
GENERAL
Efficiency
Package Weight
Switching Frequency
MTTF per MIL-HDBK-217,Rev E.
TEMPERATURE
Specification
Operating
Storage
NOTE: Other input and output voltages may be available upon request. Please consult factory.
CONDITIONS
MIN
TYP
5.0
4.5
I
LOAD
= 0
I
LOAD
= Rated Output
BW = DC to 10MHz
750
750
10
110
V
ISO
= 240VAC, 60HZ
15
80
1650
18
5.5
MAX
UNITS
V
DC
V
DC
mA
mA
mAp-p
V
DC
Vpk
GΩ
pF
μArms
5 Watts Regulated DC/DC Converters
60 Hz, 10 seconds
±15
Rated Load, Nominal V
IN
±0.01
±167
10
±0.02
0.1
0.6
60
50
50
890
–25
–40
–55
+25
+85
+100
+125
1.0
±1
±0.5
To 0.1% of Final Value
4.5V
DC
to 5.5V
DC
0mA to ±167mA
BW = DC to 10MHz
V
DC
%
%
%/°C
mA
ms
%
%
mVp-p
%
g
kHz
kHr
°C
°C
°C
Circuit Stress Method, T
A
=+25°C
MECHANICAL
TOP VIEW
SIDE VIEW
NOTES: All dimensions are in inches (mil-
limeters).
GRID: 0.100 inches (2.54 millimeters)
Pin Placement Tolerance: ±0.015
Marked with: specific model ordered, date
code, job code.
MATERIAL: Units are encapsulated in a low
thermal resistance molding compound which
has excellent chemical resistance, wide oper-
ating temperature range, and good electrical
properties under high humidity environments.
The encapsulant and outer shell of the unit
have UL94V-0 ratings. Lead base metal is
half hard brass; lead finish is 100-300 micro-
inches matte tin over a barrier layer of 5-40
micro-inches of nickel.
PWR1546A
0.200" (5.08)
0.400"
(10.16)
0.600"
(15.24)
0.800"
(20.32)
0.400"
(10.16)
0.900"
(22.86)
BOTTOM VIEW
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MDC_PWR1546AC.C02
Page 2 of 4
1.00"
(25.4)
PWR1546AC
5 Watts Regulated DC/DC Converters
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration .........................................................................Continuous
Internal Power Dissipation ..........................................................................................4W
Lead Temperature (soldering, 10 seconds max) ...................................................+300°C
ORDERING INFORMATION
PWR
Device Family
PWR indicates DC/DC converter
Model Number
RoHS-Compliant
1546A
/C
TYPICAL PERFORMANCE CURVES
T
A
= +25°C, V
IN
= 5VDC, I
LOAD
= ±167mA unless otherwise noted.
SOLDERING INFORMATION
The PWR1546AC device is intended for wave soldering or manual soldering. It is not designed or intended to withstand
surface mount processes under any circumstances.
The normal wave soldering process can be used with this device where it is subjected to a maximum wave temperature of
260°C for a period of no more than 10 seconds. Within the constraints of these time and temperature limits, the integ-
rity of the device’s plastic body will not will not be compromised and internal temperatures within the converter will not
exceed 175°C. Care should be exercised in controlling the manual soldering process within these same time and tem-
perature limits.
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MDC_PWR1546AC.C02
Page 3 of 4
PWR1546AC
5 Watts Regulated DC/DC Converters
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following
operating requirements
and the
Life and Safety Critical Application Sales Policy:
Refer to:
http://www.murata-ps.com/requirements/
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
notice.
© 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_PWR1546AC.C02
Page 4 of 4
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