Page 2 - MPD MD100ERW Datasheet
P. 2



Model Selection Guide www.micropowerdirect.com
Input Output Refl ected Fuse
Model Effi ciency Ripple Capacitive Rating
Load
Number Voltage (VDC) Current (mA) Voltage Current Current (%, Typ) Current (µF, Max) Slow-Blow
Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (mA Typ) (mA)
MD105S-05ERW 5 4.5 - 9.0 278 25 5.0 200 10.0 72 30.0 2,200 600
MD105S-12ERW 5 4.5 - 9.0 263 25 12.0 83 4.0 76 30.0 1,000 600
MD105S-15ERW 5 4.5 - 9.0 267 25 15.0 67 3.0 75 30.0 680 600
MD105D-05ERW 5 4.5 - 9.0 274 25 ±5.0 ±100 ±5.0 73 30.0 1,000 600
MD105D-12ERW 5 4.5 - 9.0 263 25 ±12.0 ±42 ±2.0 76 30.0 470 600
MD105D-15ERW 5 4.5 - 9.0 267 25 ±15.0 ±33 ±2.0 75 30.0 330 600
MD112S-03ERW 12 9.0 - 18.0 112 12 3.3 303 15.0 75 40.0 2,700 250
MD112S-05ERW 12 9.0 - 18.0 108 12 5.0 200 10.0 77 40.0 2,200 250
MD112S-12ERW 12 9.0 - 18.0 106 12 9.0 111 6.0 79 40.0 1,800 250
MD112S-12ERW 12 9.0 - 18.0 104 12 12.0 83 4.0 80 40.0 1,000 250
MD112S-15ERW 12 9.0 - 18.0 104 12 15.0 67 3.0 80 40.0 680 250
MD112D-05ERW 12 9.0 - 18.0 107 12 ±5.0 ±100 ±5.0 78 40.0 1,000 250
MD112D-12ERW 12 9.0 - 18.0 103 12 ±12.0 ±42 ±2.0 81 40.0 470 250
MD112D-15ERW 12 9.0 - 18.0 104 12 ±15.0 ±33 ±2.0 80 40.0 330 250
MD124S-03ERW 24 18.0 - 36.0 56 6 3.3 303 15.0 75 55.0 2,700 125
MD124S-05ERW 24 18.0 - 36.0 54 6 5.0 200 10.0 77 55.0 2,200 125
MD124S-12ERW 24 18.0 - 36.0 51 6 12.0 83 4.0 81 55.0 1,000 125
MD124S-15ERW 24 18.0 - 36.0 53 6 15.0 67 3.0 79 55.0 680 125
MD124S-24ERW 24 18.0 - 36.0 54 6 24.0 42 2.0 77 55.0 470 125
MD124D-05ERW 24 18.0 - 36.0 52 6 ±5.0 ±100 ±5.0 80 55.0 1,000 125
MD124D-12ERW 24 18.0 - 36.0 52 6 ±12.0 ±42 ±2.0 80 55.0 470 125
MD124D-15ERW 24 18.0 - 36.0 52 6 ±15.0 ±33 ±2.0 80 55.0 330 125
MD148S-03ERW 48 36.0 - 75.0 28 4 3.3 758 38 75 70.0 2,700 75
MD148S-05ERW 48 36.0 - 75.0 27 4 5.0 200 10.0 76 70.0 2,200 75
MD148S-12ERW 48 36.0 - 75.0 26 4 12.0 83 4.0 81 70.0 1,000 75
MD148S-15ERW 48 36.0 - 75.0 26 4 15.0 67 3.0 80 70.0 680 75
MD148D-05ERW 48 36.0 - 75.0 27 4 ±5.0 ±100 ±5.0 76 70.0 1,000 75
MD148D-12ERW 48 36.0 - 75.0 26 4 ±12.0 ±42 ±2.0 80 70.0 470 75
MD148D-15ERW 48 36.0 - 75.0 26 4 ±15.0 ±33 ±2.0 80 70.0 330 75
Notes: Derating Curve
1. At no load, output voltage accuracy is ±1.5% typical and ±5.0% max.
2. The load on dual output units should not be unbalanced more than ±5 %. Units
operated with unbalanced loads greater than ±5% may not meet all specifi cations.
3. When measuring output ripple & noise, it is recommended that an external capacitor
(100 µF typ.) be placed from the +VOUT to the -VOUT pins for single output units and
from each output to common for dual output models.
4. Transient recovery is measured to within a 1% error band for a load step change
of 25%.
5. With the addition of the DCFM-0x (or a similar discrete fi lter), all models will meet EN
55022 class B. A suggested input circuit is shown in the connection diagram on page 3.
Contact the factory for more information.
6. To meet the requirements of EN 61000-4-4 (±2 kV), external components are needed.
The connection diagram on page 3 shows an external input fi lter that would typically
achieve this. With the addition of the DCFM-0x, EN 61000-4-4 (±4 kV) can be achieved.
Contact the factory for more information.
7. To meet the requirements of EN 61000-4-5 (±2 kV), external components are needed.
This can be done discretely (as shown in the connection diagram on page 3), or with the
addition of the DCFM-0x. Contact the factory for more information.
8. These units should not be operated with a load under 5% of full load. Operation at no-load
will not damage the unit, but they may not meet all specifi cations.
9. It is recommended that a fuse be used on the input of a power supply for protection. See
the Model Selection table above for the correct rating.
Remote ON/OFF Control
The MD100x-ERW may be started or shutdown by the control pin input (pin 3). This input is
current controlled. The unit operates when this input is open. When the input is “high” (current
is fl owing into the pin), the converter shuts down. The input current to this pin should be kept
between 5 mA to 10 mA. Exceeding 20 mA on this input or connecting it directly to ground
could damage the converter.
The diagram at right gives a suggested input circuit for the control pin. The diode (D1) is an
RB160M-60/1A and CD is is a 47 nF/100V. The resistor R1 is determined by the formula:
R = [(VC-VD-1.0)/IC]-300
Where: VC = voltage to ground from pin 3
V
D = the forward conduction voltage drop of D1
IC = the control pin current (5 - 10 mA)

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