Datasheet > MD148D05ERW

MD148D05ERW

更新时间： 2022-02-26 10:19:51

品牌	Logo	应用领域
MPD		/
页数	文件大小	规格书
4页	856K
描述
MD100ERW SERIES

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MD148D05ERW 数据手册

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Typical Connection

For applications that require meeting EMC standards,the diagram above 6. Recommended values for components are:

7. Thedrawingsbelowshowtypicalboardlayoutsforthe EMC/

EMI circuit shown above (one for single output models and

one for dual output units).

illustrates a typical connection of the MD100xERWseries.The units

do not require external components to operate as speciﬁed.Some notes

on this diagram (starting with the input circuit) are:

Component

MOV

LDM¹

TVS

C¹

5 V^IN

---

12 VIN

---

24 VIN

S14K35

56 µH

48 VIN

S14K60

56 µH

8. In many applications simply adding input/output

capacitors will enhance the input surge protection

and reduce output ripple sufﬁciently. The value of

the input capacitor can range from 1ꢁ µF to 1ꢁꢁ µF,

depending on the needs of the application. The output

capacitor would typically be 1ꢁꢁ µF.

9. The capacitor C^Sprovides additional output ﬁltering.

If used, a value of 1ꢁ µF to 2ꢁ µF is recommended. This

capacitor is not required for speciﬁed operation.

1. An external fuse should be used in all power module applications.

The recommended fuse is shown in the model chart on page 2.

2. To protect against a surge,an external MOV is recommended on the

input. A suggested value is given in the table at right.

3. To protect against voltage spikes, it is recommended that a TVS be

used on the input. A suggested value is given in the table at right.

4. ThecapacitorC^Sisrequiredtomeetallspeciﬁcationsonsingleoutput

units.

5. The output ﬁltering capacitor (C⁴) is a high frequency,low resistance

electrolytic capacitor. Care must be taken in choosing this capacitor

not to exceed the capacitive load speciﬁcation for the unit. Voltage

derating of capacitors should be 8ꢁꢀ or above.

SMCJ13A

SMCJ28A

SMCJ48A

SMCJ90A

680 µF/16V 680 µF/25V 330 µF/50V 330 µF/100V

4.7 µF/50V

12 µH

4.7 µF/50V

1nF/2 kV

C²

LDM²

C³

4.7 µF/50V 4.7 µF/100V 4.7 µF/100V

12 µH

4.7 µF/50V

1nF/2 kV

12 µH

4.7 µF/50V 4.7 µF/100V

1nF/2 kV

C^S

10 µF - 22 µF

C⁴

100 µF

Typical Board Layout: With External Filter/Surge Components for Single Output Unit

Typical Board Layout: With External Filter/Surge Components for Dual Output Unit

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