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muRata - Isolated 3W Wide Input Dual Output DC/DC Converters

Numéro de référence NDTD1212C
Description Isolated 3W Wide Input Dual Output DC/DC Converters
Fabricant muRata 
Logo muRata 





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NDTD1212C fiche technique
www.murata-ps.com
NDTD Series
Isolated 3W Wide Input Dual Output DC/DC Converters
FEATURES
„RoHS compliant
„Industry standard footprint
„Power density 0.90W/cm3
„2:1 Input range, 3W output power, minimum
3:1 input range with power derating to 2W
„Dual isolated output
„Short circuit protection
„Operating temperature range -40ºC to 85ºC
„Load and line regulation <1% on both
outputs
„No heatsink required
„1kVDC isolation
„5V, 12V, 24V & 48V Input
„3.3V, 5V, 12V & 15V Output
„Internal SMD construction
„Fully encapsulated
DESCRIPTION
The NDTD series is a range of low profile DC/DC
converters offering dual outputs over a 2:1 input
voltage range. All parts deliver 3W output power
up to 85ºC without heatsinking. A flyback oscilla-
tor design with isolated feedback is used to give
regulation over the full operating range of 25% to
100% of full load. It is strongly recommended that
external capacitors be used on input and output
to guarantee performance over full load and input
voltage range (see application notes for guidance).
The plastic case is rated to UL94V-0 and encap-
sulant to UL94V-1 and the connection pins are
formed from a tin plated alloy 42 leadframe.
SELECTION GUIDE
Order code
Input Rated output
Output current
voltage voltage Min. Load 1 Full load
NDTD0503C
NDTD0505C
NDTD0512C
NDTD0515C
NDTD1203C
NDTD1205C
NDTD1212C
NDTD1215C
NDTD2403C
NDTD2405C
NDTD2412C
NDTD2415C
NDTD4803C
NDTD4805C
NDTD4812C
NDTD4815C
V (Nom.)
5
5
5
5
12
12
12
12
24
24
24
24
48
48
48
48
V
±3.3
±5
±12
±15
±3.3
±5
±12
±15
±3.3
±5
±12
±15
±3.3
±5
±12
±15
mA
±113
±75
±31
±25
±113
±75
±31
±25
±113
±75
±31
±25
±113
±75
±31
±25
mA
±454
±300
±125
±100
±454
±300
±125
±100
±454
±300
±125
±100
±454
±300
±125
±100
Input
current
full load
Efficiency 2
(Min.)
Isolation
capacitance
MTTF 3
mA %
pF kHrs
890 67
30 1644
804 72
31 1640
764 76
36 1625
773 75
34 1609
343 73
30 1668
321 75
29 1665
311 78
32 1650
310 78
36 1633
170 73
30 1671
156 78
30 1675
148 82
35 2075
146 82
41 2080
86 72
30 1667
79 76
30 1669
76 80
35 2090
75 81
36 2045
INPUT CHARACTERISTICS
Parameter
Conditions
5V input types
Voltage range
12V input types
24V input types
48V input types
5V input types
Reflected ripple current 4
12V, 24V & 48V input types
Min. Typ. Max. Units
4.5 5
9
9 12 18
VDC
18 24 36
36 48 75
40 90
mA p-p
30 40
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1.5mm from case for 10 seconds
Minimum output load for specification1
Input voltage 5V types
Input voltage 12V types
Input voltage 24V types
Input voltage 48V types
Free air space
8 hours
300°C
25% of rated output
10V
20V
40V
80V
10mm Min. around component
1. Please refer to minimum load application note section on page 4.
2. Measured at full load with external input/output capacitors, refer to test circuit.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
4. Please refer to reflected ripple current measurement circuit on page 3.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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