KDC_NDTD Datasheet, PDF (1/7 Pages) Murata Manufacturing Co., Ltd. – Isolated 3W Wide Input Dual Output DC/DC Converters

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}
V (Nom.)
V
NDTD0503C
5
±3.3
NDTD0505C
5
±5
NDTD0512C
5
±12
NDTD0515C
5
±15
NDTD1203C
12
±3.3
NDTD1205C
12
±5
NDTD1212C
12
±12
NDTD1215C
12
±15
NDTD2403C
24
±3.3
NDTD2405C
24
±5
NDTD2412C
24
±12
NDTD2415C
24
±15
NDTD4803C
48
±3.3
NDTD4805C
48
±5
NDTD4812C
48
±12
NDTD4815C
48
±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.
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries - email: [e-mail], tel: [phone]
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