NMV1205DC Murata Power Solutions Inc, NMV1205DC Datasheet - Page 4

• Manufacturer Part Number: NMV1205DC
• Description: DC/DC Converters & Regulators 1W +/-5Vout +/-100mA 12Vin 3kVDC Iso DIP
• Manufacturer: Murata Power Solutions Inc
• Series: NMVr

Specifications of NMV1205DC

• Output Power: 1 W
• Input Voltage Range: 10.8 V to 13.2 V
• Input Voltage (nominal): 12 V
• Number Of Outputs: 2
• Output Voltage (channel 1): 5 V
• Output Current (channel 1): 100 mA
• Output Voltage (channel 2): - 5 V
• Output Current (channel 2): - 100 mA
• Isolation Voltage: 3 KV
• Package / Case Size: DIP
• Output Voltage: 5 V
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATION NOTES (continued)
www.murata-ps.com
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test confi guration.
Differential Mode Noise Test Schematic
Output Ripple Reduction
C1
C2
C3
R1
R2
T1
RLOAD
Measured values are multiplied by 10 to obtain the specifi ed values.
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor
should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be
>20MHz.
NMV0505xC
NMV0509xC
NMV0512xC
NMV0515xC
NMV1205xC
NMV1209xC
NMV1212xC
NMV1215xC
NMV1505xC
NMV1512xC
NMV1515xC
1μF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100mΩ at 100 kHz
100nF multilayer ceramic capacitor, general purpose
450Ω resistor, carbon fi lm, ±1% tolerance
50Ω BNC termination
3T of the coax cable through a ferrite toroid
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
L, μH
100
150
220
100
150
220
150
220
22
22
22
82223C
82104C
82154C
82224C
82223C
82104C
82154C
82224C
82223C
82154C
82224C
Inductor
SMD
SUPPLY
Source
Power
DC/DC Converter
Input
Through Hole
+
-
11R223C
11R104C
11R154C
11R224C
11R223C
11R104C
11R154C
11R224C
11R223C
11R154C
11R224C
Output
+
-
C1 C2 C3
DC
Capacitor
0.47uF
0.33uF
0.22uF
0.33uF
0.22uF
R LOAD
2.2uF
0.33
0.22
C, μF
1uF
1uF
1
DC
R1
T1
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
Technical enquiries email: [e-mail], tel: [phone]
L
NMV 5V, 12V & 15V Series
R2
C
OSCILLOSCOPE
Y INPUT
Load
2010-09-20 KDC_NMV.G01 Page 4 of 5