2B-XNM Series
Isolated 2W Single Output DC/DC Converters
SELECTION GUIDE
Input
Output
Output
Current
(MA)
Input Current
(Rated Load)
(MA)
Efficiency
(%)
Isolation
Capacitance
(PF)
MTTF1
Order code
Voltage
Voltage
(V)
(V)
(KHRS)
2B0505XNM
2B0509XNM
2B0512XNM
2B0515XNM
2B1205XNM
2B1209XNM
2B1212XNM
2B1215XNM
2B2405XNM
2B2409XNM
2B2412XNM
2B2415XNM
5
5
9
400
222
167
133
400
222
167
133
400
222
167
133
513
492
479
481
207
198
197
197
104
100
99
78
81
84
83
81
84
85
85
80
83
84
84
19
27
32
27
28
42
46
54
60
65
78
58
2327
1393
832
481
716
593
461
328
315
302
295
282
5
5
12
15
5
FEATURES
5
◆Footprint from 1.05cm2
12
12
12
12
24
24
24
24
9
◆I/O isolation voltage 1000VDC
◆Operating Temperature: -40℃～﹢85℃
◆High efficiency up to 85%
12
15
5
9
◆Fully encapsulated toroidal magnetics
◆Internal SMD construction
12
15
99
Input Characteristics
◆Custom solutions available
◆No electrolytic or tantalum capacitors
◆5V,9V,12V and 15V output
Parameter
Conditions
Min Typ Max. Units
Continuous operation,5V input types
Continuous operation,12V input types
Continuous operation,24V input types
5V input types
4.5
5
5.5
Voltage range
V
10.8
21.6
12
24
33
13.2
26.4
◆No heatsink required
mA p-p
mA p-p
Reflected ripple current
12V input types
38
◆Pin compatible with B-XN(S)D series
◆UL 94V-0 package material
◆No external compo nents required
◆Industry standard pinout
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Conditions
Min
Typ.
Max. Units
TA=-40°C to 85°C
See tolerance envelope
High VIN to low VIN
2
W
Voltage Set Point Accuracy
Line regulation
◆Power density 2.01W/cm3
1.0
7
1.2
8.5
%%
%
5V output
Load regulation
◆MTTF up to 2.3 million hours
9V output
4.5
4.5
3.7
96
67
59
53
76
63
53
45
5.2
%
10% load to rated load
12V output
5.5
%
MODEL SELECTION
15V output
8.5
%
①
②
③
④
⑤
⑥
2B 05 05 X N M
B0505XNM,BW=DC to 20MHz
B0509XNM,BW=DC to 20MHz
B0512XNM,BW=DC to 20MHz
B0515XNM,BW=DC to 20MHz
B1205XNM,BW=DC to 20MHz
B1209XNM,BW=DC to 20MHz
B1212XNM,BW=DC to 20MHz
B1215XNM,BW=DC to 20MHz
200
200
200
200
200
200
200
200
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
①Product Series
③Output Voltage
⑤Negation layout
②Input Voltage
④Fixed Input
⑥Package Style
Ripple and Noise
APPLICATIONS
The 2B-XNM series of DC/DC Converters is
particularly suited to isolating and/or
converting DC power rails. The galvanic
isolation allows the device to be configured to
provide an isolated negative rail in systems
where only positive rails exist.The wide
temperature range guarantees startup from
–40°C and full 2 watt output at 85°C. Pin
compatibility with the B-XN(S)D-1W ensures
ease of upgradeability.
Absolute Maximum Ratings
Short-circuit protection2
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
1 second
300°C
805mW
7V
Input voltage VIN,B05 types
Input voltage VIN,B12 types
15V
Input voltage VIN,B24 types
28V
Isolation characteristics
Parameter
Isolation test voltage
Resistance
Conditions
1 second
Min.
1000
10
Typ
Max.
Unit
VDC
GΩ
Viso= 500VDC
1.Calculated using MIL-HDBK-217FN2 calculation model with nominal input voltage at full load.
2.Supply voltage must be disconnected at the end of the short circuit duration.
MICRODC RESERVES THE COPYRIGHT
All specifications typical at TA=25°C,nominal input voltage and rated output current unless otherwise specified.
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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