MB1500ERW Datasheet, PDF (3/4 Pages) MicroPower Direct, LLC – MB1500ERW

EMC Specifications
Parameter
Radiated Emissions
Conducted Emissions
ESD
RS
EFT
Surge
CS
Voltage Dips
Standard
See Note 1
EN 55022
See Note 1
EN 55022
EN 61000-4-2
EN 61000-4-3
See Note 2 EN 61000-4-4
See Note 3 EN 61000-4-5
EN 61000-4-6
EN 61000-4-29
Typical Connection
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Class A
Class A
Criteria B; ±4 kV Contact
Criteria A; 10V/m
Criteria B; ±2 kV
Criteria B; ±2 kV
Criteria A; 3 Vrms
Criteria B; 0% - 70%
Notes:
1. All units are rated for EN 55022 (CE/RE) class A without external components.
They will meet class B with the addition of the DCFM-0x (or a similar discrete
filter circuit). Contact the factory for more information.
2. To meet the requirements of EN 61000-4-4 (±2 kV), external components are
needed. This can be done discretely, or with the addition of the DCFM-0x.
Contact the factory for more information.
3. To meet the requirements of EN 61000-4-5 (±2 kV), external components are
needed. This can be done discretely, or with the addition of the DCFM-0x. Contact
the factory for more information.
The diagram above illustrates a typical connection of the MB1500ERW 5. Recommended values for components are:
For pricing or full technical information on these modules (DCFM-01,
series for applications that require meeting EMC standards. The units do not
require external components to operate as specified. Some notes on this
diagram (starting with the input circuit) are:
1. It is recommended that an external fuse be used. The recommended fuse
Component
MOV
L1
12 VIN
24 VIN
10D560
56 µH
48 VIN
10D101
56 µH
DCFM-02 and DCFM-03) please contact the factory.
7. In many applications simply
adding input/output capaci-
tors will enhance the input
Vin Input Vout Output
(VDC) Capacitor (VDC) Capacitor
is shown in the model chart on page 2.
TVS
SMCJ28A SMCJ48A SMCJ90A
2. An external MOV is recommended on the input to protect the unit in the
C1
680 µF/25V 120 µF/25V 120 µF/100V
event of a surge. A recommended value is given in the table at right.
3. An external TVS is recommended on the input to protect the unit in the
C2
1.0 µF/50V 1.0 µF/50V 1.0 µF/100V
event of a voltage spike. A recommended value is given in the table at
L2
4.7 µH
4.7 µH
4.7 µH
right.
C3, C4 1,000 pF/2 kV 1,000 pF/2 kV 1,000 pF/2 kV
4. The output filtering capacitor (C5) is a high frequency, low resistance
electrolytic capacitor. Care must be taken in choosing this capacitor not ^{6. Input noise and surge suppression modules are available for}
to exceed the capacitive load specification for the unit. The board layout ^{a number of MPD DC/DC power supplies. An MB1500ERW}
illustration below shows a connection for dual output units.Voltage derating ^{connection with the DCFM-03 (surge suppression) module}
of capacitors should be 80% or above.
connected to the input and the DCFM-03 EMS module.
surge protection and reduce ₁₂
output ripple sufficiently. The
100 µF
3.3
5
470 µF
470 µF
input capacitor C1 and output
capacitors C5 and C6 shown ²⁴
100 µF
12
15
220 µF
220 µF
in the typical connection dia-
gram above, and board layout 48
drawing below illustrate their
100 µF
24 100 µF
±5 ±220 µF
connection in this case, recommended capacitor ^{±12 ±100 µF}
values are given in the table at right.
±15 ±100 µF
±24 ±47 µF
Typical Board Layout: With External Filter/Surge Components for Dual Output Unit
Typical Connection: With DCFM-0x ISurge Suppression and Filter Modules
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