cdc nea-nef010-smt

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Volant NEA/NEF010 Series
Non-Isolated 10A SMT DC/DC Converters
Features:
9
Small size, minimal footprint/low profile
9
10A Output Current (all voltages)
9
High Efficiency: up to 95%
9
High reliability
9
RoHS Compliant
9
Cost efficient open frame design
9
Pre-bias monotonic start-up
9
+ve Enable Logic and –ve Enable Logic models available
Output
Input
Efficiency
Vout
(V)
Iout
(A)
PARD
(mVp-p)
Regulation
Max
Vin
Nom.
(V)
Range
(V)
Iin
TYP
(A)
Full Load
Typ. Max.
Line
Load
Typ.
1.0
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
0.992
84%
1.2
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
1.163
86%
1.5
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
1.404
89%
1.8
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
1.666
90%
2.0
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
1.832
91%
2.5
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
2.264
92%
3.3
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
2.956
93%
5.0
10
30
50
+/-0.2%
+/-0.5%
12
8.3 – 14
4.385
95%
Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000
1
NEA/NEF10_6200840000_B01_21/04/08
 Volant NEA/NEF010 Seri
es
Non-Isolated 10A SMT DC/DC Converters
Murata Power Solutions
Input Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Input Voltage Operating Range
8.3
12
14
Vdc
Input Reflected Ripple Current
200
mA p-p
A
2
s
Inrush Current Transient
0.2
Input Filter Type (external)
Low ESR
100
μ
F
Input Turn ON Threshold
8.3
V
Input Turn OFF Threshold
8.0
V
ON Control
Open Circuit or =Vin
OFF Control
<0.4VDC
Output Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Vout Accuracy
100% load
-1.5
+1.5
%
Output Loading
0
10
A
Output Ripple & Noise
@ 20Mhz Bandwidth.
50
MVp-p
Maximum Capacitive Load
Low ESR
8000
μ
F
Vout Trim Range
-10
+10
%
Total Accuracy
Over line/load temperature
<2%
Current Limit
17
A
Output Line Regulation
-0.2
+0.2
%
Output Load Regulation
+0.5
-0.5
%
Turn-on Overshoot
1
%
SC Protection Technique
Hiccup with auto recovery
Pre-bias Start-up at output
Unit starts monotonically with pre-
bias
Dynamic Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Load Transient
100
mV
50% step, 0.1A/
μ
s
Settling Time
200
μ
s
Frequency
300
KHz
Rise Time
10% Vo to 90% Vo
3.5
ms
Start-Up Time
Vin to Vout and On/Off to Vout
Vout rise to monotonic
7
ms
General Specifications
Notes & Conditions
Min
Typ.
Max
Units
x10
6
Hrs
MTBF
Calculated (MIL-HDBK-217F)
1.0
Thermal Protection
Hotspot
110
°C
Operating Temperature
Without derating 100LFM
-40
60
°C
Operating Ambient Temperature
See Power derating curve
-40
85
°C
Dimensions
1.30”Lx0.53”Wx0.366”H
(33x13.46x9.3mm)
Block Dimensions
0.063” x0.065” x 0.112”
SQUARE
mm
Block Material
Matte Sn Finish on component
Leads
Weight
10
g
Flammability Rating
UL94V-0
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000), File UL E165113
2
NEA/NEF10_6200840000_B01_21/04/08
 Volant NEA/NEF010 Seri
es
Non-Isolated 10A SMT DC/DC Converters
Murata Power Solutions
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling
should be provided to help ensure reliable operation of the unit. Heat is removed by
conduction, convection, and radiation to the surrounding environment. The thermal data
presented is based on measurements taken in a set-up as shown in fig 1. when the airflow is
parallel to the long axis of the module. The de-rating applies accordingly.
The temperature at either location should not exceed 110 °C. The output power of the module
should not exceed the rated power for the module (VO, set x IO, max)
.
Inductor Pin
Pin 6
Figure 1: Thermal Measurement Setup
Convection Requirements for Cooling
To predict the approximate cooling needed for the module, refer to the Power Derating Curve in
Figure 2 to Figure 9.
These derating curve are approximations of the ambient temperature and airflow required to keep the
power module temperature below it's maximum rating. Once the module is assembled in the actual
system, the module's temperature should be verified.
Proper cooling can be verified by measuring the power module's temperature at Q1-pin 6 and Q2-pin
6 as shown in Figure 1.
3
NEA/NEF10_6200840000_B01_21/04/08
 Volant NEA/NEF010 Seri
es
Non-Isolated 10A SMT DC/DC Converters
Murata Power Solutions
TYPICAL DERATING CURVES
NEF0100101S Derating Curve
12
10
8
6
0LFM
100LFM
200LFM
300LFM
4
2
0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Figure 2. Typical Power Derating vs Output Current for 12Vi and 1.0Vo
NEF0100121S Derating Curve
12
10
8
6
0LFM
100LFM
200LFM
300LFM
4
2
0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Figure 3. Typical Power Derating vs Output Current for 12Vi and 1.2Vo
4
NEA/NEF10_6200840000_B01_21/04/08
 Volant NEA/NEF010 Seri
es
Non-Isolated 10A SMT DC/DC Converters
Murata Power Solutions
NEF0100151S Derating Curve
12
10
8
6
0LFM
100LFM
200LFM
300LFM
4
2
0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Figure 4. Typical Power Derating vs Output Current for 12Vi and 1.5Vo.
NEF0100181S Derating Curve
12
10
8
6
0LFM
100LFM
200LFM
300LFM
4
2
0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Figure 5. Typical Power Derating vs Output Current for 12Vi and 1.8Vo.
5
NEA/NEF10_6200840000_B01_21/04/08
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