NPH15S4805IC Murata Power Solutions Inc, NPH15S4805IC Datasheet - Page 5

• Manufacturer Part Number: NPH15S4805IC
• Description: CONV DC/DC 15W 48VIN 5.1VOUT DIP
• Manufacturer: Murata Power Solutions Inc
• Series: NPH15Sr
• Type: Isolatedr

Specifications of NPH15S4805IC

• Number Of Outputs: 1
• Output: 5.1V
• Power (watts): 15W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 6-DIP Module
• 1st Output: 5.1 VDC @ 3A
• Size / Dimension: 1.97" L x 0.98" W x 0.39" H (50mm x 24.9mm x 9.9mm)
• Power (watts) - Rated: 15W
• Operating Temperature: -40°C ~ 110°C
• Efficiency: 85%
• Approvals: cUL, UL
• Output Power: 15 W
• Input Voltage Range: 36 V to 75 V
• Input Voltage (nominal): 48 V
• Output Voltage (channel 1): 5.1 V
• Output Current (channel 1): 3 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: 811-1642-5

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
NPH15S2403
NPH15S2405
NPH15S2412
NPH15S2415
NPH15S4803
NPH15S4805
NPH15S4812
NPH15S4815
C1, C2 & C4 : Electrolytic capacitors
C3 : Polyester or ceramic capacitor
EMC Spectra red limit line is EN 55022 curve B Quasi-peak average limit.
C1
10μF 100V
10μF 100V
10μF 100V
10μF 100V
10μF 100V
10μF 100V
10μF 100V
10μF 100V
C2
2.2μF 63V
2.2μF 63V
2.2μF 63V
2.2μF 63V
Not required
Not required
Not required
Not required
C3
47μF 63V
47μF 63V
Not required
47μF 63V
Not required
Not required
Not required
Not required
Component reference
C4
10μF 25V
10μF 25V
10μF 25V
10μF 25V
10μF 25V
10μF 25V
10μF 25V
10μF 25V
Technical enquiries email: [e-mail], tel: [phone]
Isolated 15W Single Output DC/DC Converters
L1
MPS 18R333C
MPS 18R333C
MPS 18R333C
MPS 18R333C
MPS 18R104C
MPS 18R104C
MPS 18R104C
MPS 18R104C
100μH 1.2A
100μH 1.2A
100μH 1.2A
100μH 1.2A
33μH 2A
33μH 2A
33μH 2A
33μH 2A
2010-03-01 KDC_NPH15SC.F03 Page 5 of 8
L2
NPH15S Series
L3
MPS 18R472C
4.7μH 5.35A
MPS 18R103C
10μH 3.45A
MPS 18R333C
33μH 2.00A
MPS 18R333C
33μH 2.00A
MPS 18R472C
4.7μH 5.35A
MPS 18R103C
10μH 3.45A
MPS 18R333C
33μH 2.00A
MPS 18R333C
33μH 2.00A