NDH Series
www.murata-ps.com
Isolated 3W Dual Output DC/DC Converters
SELECTION GUIDE
Output Current
Order Code
Min Load3 Full Load
V (NOM.)
V
mA
32
mA
mA
%
pF
36
NDH2412SC
NDH2415SC
24
24
12
125
157
81
15
25
100
155
82
36
FEATURES
ꢀRoHS compliant
Recommended
Alternative
Obsolete
Compact SIP form factor
NDH4812SC
NDH4815SC
48
48
12
15
32
25
125
100
78
78
78
78
40
40
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2:1 Wide range voltage input
Continuous short circuit protection with
current foldback
INPUT CHARACTERISTICS
Parameter
Conditions
All NDH24 types
All NDH48 types
MIN.
18
36
TYP.
24
48
MAX.
36
Units
V
Operating temperature range
–40°C to +85°C
Voltage range
72
All NDH24 types when 10μF at input
All NDH48 types when 10μF at input
VIN Nominal 24XX
200
105
8
250
150
0.5% Load Regulation
1kVDC Isolation
Reflected ripple current
Shutdown Power
mA p-p
mW
VIN Nominal 48XX
16
24V & 48V nominal input
12V & 15V Output
Power density 1.00W/cm3
Remote on/off
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN.
TYP.
1
MAX.
5
Units
%
Voltage set point accuracy With external input/output capacitors
Low line to high line with external input/
output capacitors
Line regulation
Load regulation
0.05
0.2
15
0.2
0.5
30
%
No electrolytic capacitors
Low noise
Minimum load to rated load with external
input/output capacitors
%
BW = 20Hz to 300kHz with external input/
output capacitors
Ripple
mV rms
mV p-p
PRODUCT OVERVIEW
The NDH series is a range of high perfor-
mance miniature DC/DC converters having
regulated outputs over the wide temperature
range of –40°C to +85°C. The input voltage
range is 2:1 and the input to output isolation
is 1kVDC. Continuous short circuit protec-
tion, external control and extremely small SIP
packaging provide state of the art function-
ality. The use of ceramic capacitors and a
ceramic substrate, and SMD construction,
provide genuine high reliability. Nominal input
voltages of 24 and 48V with output voltages
of 12 and 15V are available as standard with
custom parts on request. The plastic case
is rated to UL 94V-0 with encapsulant to UL
94V-1.
Ripple & noise
BW = DC to 20MHz with external input/
output capacitors
90
150
% voltage change on negative output when
positive load varies from 12% to 50% with
negative load fixed at 50%
Cross regulation
2.1
5.0
%
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1.5mm from case for 10 seconds
Minimum output load for specification3
Control pin input current
Continuous
300°C
25% of rated output
15mA
40V
80V
Input voltage 24 types1
Input voltage 48 types1
Free air space
10mm MIN. around component
1. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.
2. Measured at full load with external input/output capacitors. Refer to application note.
3. A lower load condition can be used but higher levels of output ripple may be experienced, this condition may also cause the output
voltage to exceed its specification transiently during power down when the input voltage also falls below its rated minimum.
All specifications typical at T =25°C, Nominal input voltage and rated output current unless otherwise specified.
A
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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