NDL4809SC Murata Power Solutions Inc, NDL4809SC Datasheet - Page 2

• Manufacturer Part Number: NDL4809SC
• Description: DC/DC Converters & Regulators 2W 48V to 9V 222mA Single Output
• Manufacturer: Murata Power Solutions Inc
• Series: NDLr

Specifications of NDL4809SC

• Output Power: 2 W
• Input Voltage Range: 36 V to 72 V
• Input Voltage (nominal): 48 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 9 V
• Output Current (channel 1): 222 mA
• Isolation Voltage: 1 KV
• Package / Case Size: SIP
• Product: Isolated
• Dc / Dc Converter O/p Type: Single
• No. Of Outputs: 1
• Input Voltage: 36V To 72V
• Power Rating: 2W
• Output Voltage: 9V
• Output Current: 222mA
• Supply Voltage: 48V
• Dc / Dc Converter Case Style: SIP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Refer to recommended test circuit for external input/output capacitors.
OUTPUT CHARACTERISTICS
Parameter
Voltage set point accuracy
Line regulation
Load regulation
Ripple
Noise
Shutdown power
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
GENERAL CHARACTERISTICS
Parameter
Control pin (CTRL) input current
Switching frequency
TEMPERATURE CHARACTERISTICS
Parameter
Operation
Storage
Cooling
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specifi ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NDL series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
For a part holding no specifi c agency approvals, such as the NDL series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or
60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part
could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to
safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NDL series has an EI ferrite core, with no additional insulation between primary and secondary windings of enameled wire. While parts can be
expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane)
is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly
advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specifi ed test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
www.murata-ps.com
Conditions
All NDL05/12 input types with external input/output capacitors
All NDL24/48 input types with external input/output capacitors
All NDL05/12 input types, low line to high line with external input/output capacitors
All NDL24/48 input types, low line to high line with external input/output capacitors
All NDL05/12 input types, minimum load to rated load with external input/output capacitors
All NDL24/48 input types, minimum load to rated load with external input/output capacitors
B/W = 20MHz to 300kHz with external input/output capacitors
All NDL05 input types, B/W =DC to 100MHz with external input/output capacitors
All NDL12 input types, B/W =DC to 100MHz with external input/output capacitors
All NDL24/48 input types, B/W =DC to 100MHz with external input/output capacitors
+V
Conditions
Flash tested for 1 second
V
Conditions
Please refer to control pin application note
Max. rated load to Min. rated load, V
Conditions
Free air convection
ISO
IN
= 1000V
nominal
1
DC
IN
Min. to V
Isolated 2W Wide Input Single Output DC/DC Converters
IN
. Max.
Technical enquiries email: [e-mail], tel: [phone]
1000
Min.
Min.
Min.
100
-40
-50
1
6
2009/10/29 KDC_NDLC.F03 Page 2 of 4
0.05
0.04
Typ.
Typ.
Typ.
110
Typ.
0.2
0.2
2.8
±1
±2
10
20
50
5
NDL Series
Max.
Max.
Max.
Max.
0.75
0.75
170
100
600
130
0.5
0.4
±3
±5
15
85
10
35
mV rms
mV p-p
Units
Units
Units
Units
mW
kHz
V
mA
GΩ
ºC
%
%
%
DC