NPH10S2403IC Murata Power Solutions Inc, NPH10S2403IC Datasheet - Page 5

NPH10S2403IC

Manufacturer Part Number

NPH10S2403IC

Description

CONV DC/DC 10W 24VIN 3.4VOUT DIP

Manufacturer

Murata Power Solutions Inc

Series

NPH10Sr

Type

Isolatedr

Datasheet

1.NPH10S2412IC.pdf (8 pages)

Specifications of NPH10S2403IC

Number Of Outputs

Output

3.4V

Power (watts)

10W

Mounting Type

Through Hole

Voltage - Input

18 ~ 36V

Package / Case

6-DIP Module

1st Output

3.4 VDC @ 2.94A

Size / Dimension

1.26" L x 0.98" W x 0.39" H (32mm x 24.9mm x 9.9mm)

Power (watts) - Rated

10W

Operating Temperature

-40°C ~ 110°C

Efficiency

79%

Approvals

Output Power

10 W

Input Voltage Range

18 V to 36 V

Input Voltage (nominal)

24 V

Output Voltage (channel 1)

3.4 V

Output Current (channel 1)

2.94 A

Isolation Voltage

1.5 KV

Package / Case Size

DIP

Product

Isolated

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

3rd Output

2nd Output

4th Output

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

811-1624-5

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

NPH10S2403IC

Manufacturer:

C&DTech

Quantity:

492

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EMC FILTERING AND SPECTRA

www.murata-ps.com

FILTERING

The module includes a basic level of ﬁ ltering, sufﬁ cient for many applications. Where lower noise levels are desired, ﬁ lters can easily be added to achieve any required

noise performance.

A DC/DC converter generates noise in two principle forms: that which is radiated from its body and that conducted on its external connections. There are three separate

modes of conducted noise: input differential, output differential and input-output.

This last appears as common mode at the input and the output, and cannot therefore be removed by ﬁ ltering at the input or output alone. The ﬁ rst level of ﬁ ltering is to

connect a capacitor between input and output returns, to reduce this form of noise. It typically contains high harmonics of the switching frequency, which tend to appear

as spikes on surrounding circuits. The voltage rating of this capacitor must match the required isolation voltage. (Due to the great variety in isolation voltage and required

noise performance, this capacitor has not been included within the converter.)

Input ripple is a voltage developed across the internal Input decoupling capacitor. It is therefore measured with a deﬁ ned supply source impedance. Although simple

series inductance will provide ﬁ ltering, on its own it can degrade the stability. A shunt capacitor is therefore recommended across the converter input terminals, so that it

is fed from a low impedance.

If no ﬁ ltering is required, the inductance of long supply wiring could also cause a problem, requiring an input decoupling capacitor for stability. An electrolytic will perform

well in these situations. The input-output ﬁ ltering is performed by the common-mode choke on the primary. This could be placed on the output, but would then degrade

the regulation and produce less beneﬁ t for a given size, cost, and power loss.

Radiated noise is present in magnetic and electrostatic forms. The latter is suppressed by the metal case, which is connected to the output return, typically a zero-volt

point. Thanks to the small size of these units, neither form of noise will be radiated “efﬁ ciently”, so will not normally cause a problem. Any question of this kind usually

better repays attention to conducted signals.

EMC FILTER AND VALUES TO OBTAIN SPECTRA AS SHOWN

NPH10S2403

NPH10S2405

NPH10S2412

NPH10S2415

NPH10S4803

NPH10S4805

NPH10S4812

NPH10S4815

C1, C2 & C4 : Electrolytic capacitors

C3 : Polyester or ceramic capacitor