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NEA/NEF10 6200500000 A04 Nov 15
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Volant NEA/NEF010 Series
Non-Isolated 10A SIP DC/DC Converters
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Features:
9 Small size, minimal footprint/low profile
9 10A Output Current (all voltages)
9 High Efficiency: up to 95%
9 High reliability
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
PARD
(mVp-p)
Regulation
Max
Vin
Nom.
(V)
Range
(V)
Iin
TYP
(A)
Full Load
Vout
(V)
Iout
(A)
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%
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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
Inrush Current Transient 0.2 A2s
Input Filter Type (external) Low ESR 100 µF
Input Turn ON Threshold 8.5 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 µF
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 50% step, 0.1A/µs 100 mV
Settling Time 200
µs
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
MTBF Calculated (MIL-HDBK-217F) 1.0 x106 Hrs
Thermal Protection Hotspot 110 °C
Operating Temperature Without derating 100LFM -40 60 °C
Operating Ambient Temperature See Power derating curve -40 85 °C
Dimensions 2”Lx0.327”Wx0.512”H
(50.8x8.3x13.0mm)
Pin Dimensions 0.025” (0.64mm) SQUARE 0.64 mm
Pin Material Square copper with tin-lead plating
Weight 10 g
Flammability Rating UL94V-0
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000)
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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).
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.
Figure 1: Thermal Measurement Setup
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TYPICAL DERATING CURVES
NEF0100101B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature (C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 2. Typical Power Derating vs Output Current for 12Vi and 1.0Vo
NEF0100121B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature (C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 3. Typical Power Derating vs Output Current for 12Vi and 1.2Vo
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NEF0100151B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature (C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 4. Typical Power Derating vs Output Current for 12Vi and 1.5Vo.
NEF0100181B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature (C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 5. Typical Power Derating vs Output Current for 12Vi and 1.8Vo.
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NEF0100201B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature (C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 6. Typical Power Derating vs Output Current for 12Vi and 2.0Vo.
NEF0100251B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature(C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 7. Typical Power Derating vs Output Current for 12Vi and 2.5Vo.
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NEF0100331B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature(C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 8. Typical Power Derating vs Output Current for 12Vi and 3.3Vo
NEF0100501B Derating Curve
0
2
4
6
8
10
12
20 30 40 50 60 70 80 90 100
Ambient Temperature(C)
Output Current (A)
0LFM
100LFM
200LFM
300LFM
Figure 9. Typical Power Derating vs Output Current for 12Vi and 5.0Vo
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TYPICAL EFFICIENCY CURVES
NEF0100101B (Eff Vs Io)
40%
45%
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 10. Efficiency Curves for Vout=1.0V (25C)
NEF0100121B (Eff Vs Io)
40%
45%
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 11. Efficiency Curves for Vout=1.2V (25C)
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NEF0100151B (Eff Vs Io)
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 12. Efficiency Curves for Vout=1.5V (25C)
NEF0100181B (Eff Vs Io)
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 13. Efficiency Curves for Vout=1.8V (25C)
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NEF0100201B (Eff Vs Io)
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 14. Efficiency Curves for Vout=2.0V (25C)
NEF0100251B (Eff Vs Io)
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 15. Efficiency Curves for Vout=2.5V (25C)
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NEF0100331B (Eff Vs Io)
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 16. Efficiency Curves for Vout=3.3V (25C)
NEF0100501B (Eff Vs Io)
60%
65%
70%
75%
80%
85%
90%
95%
100%
012345678910
Current Load (A)
Efficiency (%)
Vin=9V
Vin=12V
Vin=14V
Figure 17. Efficiency Curves for Vout=5.0V (25C)
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Typical Start Up
Ch1 : Vin
Ch2 : Vout
Ch3.: Top Fet Vg
Ch4 : Bottom Fet Vg
Typical Start Up with pre-bias
Ch1 : Vin
Ch2 : Vout
Ch3 : Output Current
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Typical Output Noise and Ripple
Vin = 12Vdc , Vo=5.0V/10A
Output with 1uF ceramic and 10uF tantalum capacitor
Typical Output Transient Response
Vin = 12Vdc , Vo=5.0V , 50% - 100% - 50% Load change , @0.1A/uS
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Output Voltage Set point adjustment.
The following relationship establish the calculation of external resistors for the NEF series:
Trim-Up
For trim_Up an external resistor is connected between the TRIM and Ground Pin.
)(K )
7.01
(
,
Ω−
−
×
=−Rt
VVo
R
R
nomo
uptrim
Where,
Rt = 1 KΩ
R1 = 15 KΩ
Vo,nom is the nominal output voltage
Vo is the desired output voltage
Trim_Down
For trim down an external resistor is to be connected between TRIM and Vout pins of the module.
The value of Rtrim_Down is calculated from the following relationship.
)(K
)7.0(1
,
Ω−
−
−×
=−Rt
VoV
VoR
R
nomo
downtrim
The values of R1 , Rt , Vo,num , Vo are as defined above.
Examples:
Vout = 1.5V Trim_Up required 8% to 1.62V
Vo – Vo,nom = 1.62 – 1.5 = 0.12V
)(K 5.861
12.0
7.015 Ω=−
×
=
−uptrimR
Vout = 1.5V Trim_Down required 8% to 1.38V
Vo,nom - Vo = 1.5 – 1.38 = 0.12V
)(K 84 1
12.0
)7.038.1(15 Ω=−
−×
=−downtrimR
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The following relationship establish the calculation of external resistors for the NEA series:
)(K 1)
7525.0
7.015
(Ω−
−
×
=Vo
Radj
For Vout setting an external resistor is connected between the TRIM and Ground Pin.
Resistor values for different output voltages are calculated as given in the table:
Vo, set (Volts) RAdj (KΩ)
0.75 Open
1.2 22.46
1.5 13.05
1.8 9.024
2.0 7.417
2.5 5.009
3.3 3.122
5.0 1.472
Remote Sense:
All C&D SIP power modules offer an option for remote sense. The remote sense compensates for any
distribution drops to accurately control voltage at the point of load. The voltage between the sense pin to Vout
pin should not exceed 0.5V.
Mechanical Information
PIN CONNECTION
FUNCTI ON
+Output
+Output
+Sense
+Output
Common
Common
Pin
1
2
3
4
5
6
A
ll Dimmension In Inches(mm
)
Tolerance :
.XX= 0.02 ( .X= 0.5 )
.XXX= 0.010 ( .XX= 0. 25 )
7
8
9
10
11
+V Input
+V Input
No Pi n
Trim
On/Off Control
LAYOUT PATTERN
TOP VIEW 0.33(8.4)
0.29(7.4)
1. 1mm PLATED THROUGH HOLE
1. 6mm PAD SI ZE
0.025(0.64)
1.000(25.40)
2.00(50.8)
5
4321
0.14(3.6)
0.100(2.54)
0.400(10.20)
SIZE SIP
0.50(12.70)
11
10
9
8
7
6
0.050(1.30)
0.010(0.25)
mi n.
0.28(7.1)
0.025(0.64)
0.23(5.8)
0.327(8.30)max.
Safety Considerations
The NEA/NEF series of converters are certified to IEC/EN/CSA/UL 60950. If this product is built into information
technology equipment, the installation must comply with the above standard. An external input fuse (no more than 20
Amps, recommended) must be used to meet the above requirements. The output of the converter [Vo(+)/Vo(-)] is
considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements.
The converters and materials meet UL 94V-0 flammabilit
y
ratin
g
s.
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Ordering Information
Note: SMT versions are also available. See applicable datasheet for details.
Part Number Vin Vout Iout Enable Logic Pin Length
NEF0100101B0 8.3V - 14.0V 1.0V 10A Positive 0.139"
NEF0100121B0 8.3V - 14.0V 1.2V 10A Positive 0.139"
NEF0100151B0 8.3V - 14.0V 1.5V 10A Positive 0.139"
NEF0100181B0 8.3V - 14.0V 1.8V 10A Positive 0.139"
NEF0100201B0 8.3V - 14.0V 2.0V 10A Positive 0.139"
NEF0100251B0 8.3V - 14.0V 2.5V 10A Positive 0.139"
NEF0100331B0 8.3V - 14.0V 3.3V 10A Positive 0.139"
NEF0100501B0 8.3V - 14.0V 5.0V 10A Positive 0.139"
NEF0100101S0 8.3V - 14.0V 1.0V 10A Positive SMT
NEF0100121S0 8.3V - 14.0V 1.2V 10A Positive SMT
NEF0100151S0 8.3V - 14.0V 1.5V 10A Positive SMT
NEF0100181S0 8.3V - 14.0V 1.8V 10A Positive SMT
NEF0100201S0 8.3V - 14.0V 2.0V 10A Positive SMT
NEF0100251S0 8.3V - 14.0V 2.5V 10A Positive SMT
NEF0100331S0 8.3V - 14.0V 3.3V 10A Positive SMT
NEF0100501S0 8.3V - 14.0V 5.0V 10A Positive SMT
NEF0100100B0 8.3V - 14.0V 1.0V 10A Negative 0.139"
NEF0100120B0 8.3V - 14.0V 1.2V 10A Negative 0.139"
NEF0100150B0 8.3V - 14.0V 1.5V 10A Negative 0.139"
NEF0100180B0 8.3V - 14.0V 1.8V 10A Negative 0.139"
NEF0100200B0 8.3V - 14.0V 2.0V 10A Negative 0.139"
NEF0100250B0 8.3V - 14.0V 2.5V 10A Negative 0.139"
NEF0100330B0 8.3V - 14.0V 3.3V 10A Negative 0.139"
NEF0100500B0 8.3V - 14.0V 5.0V 10A Negative 0.139"
NEF0100100S0 8.3V - 14.0V 1.0V 10A Negative SMT
NEF0100120S0 8.3V - 14.0V 1.2V 10A Negative SMT
NEF0100150S0 8.3V - 14.0V 1.5V 10A Negative SMT
NEF0100180S0 8.3V - 14.0V 1.8V 10A Negative SMT
NEF0100200S0 8.3V - 14.0V 2.0V 10A Negative SMT
NEF0100250S0 8.3V - 14.0V 2.5V 10A Negative SMT
NEF0100330S0 8.3V - 14.0V 3.3V 10A Negative SMT
NEF0100500S0 8.3V - 14.0V 5.0V 10A Negative SMT
NEA0101500B0 8.3V - 14.0V 0.75V – 5.0V 10A Negative 0.139"
NEA0101500S0 8.3V - 14.0V 0.75V – 5.0V 10A Negative SMT
NEA0101501B0 8.3V - 14.0V 0.75V – 5.0V 10A Positive 0.139"
NEA0101501S0 8.3V - 14.0V 0.75V – 5.0V 10A Positive SMT
C&D Technologies, Inc. reserves the right to alter or improve the specification, internal design or manufacturing process at any time, without notice.
Please check with your supplier or visit our website to ensure that you have the current and complete specification for your product before use.
C&D Technologies, Inc. 2004
No part of this publication may be copied, transmitted, or stored in a retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies, Inc.
Instructions for use are available from: www.cdtechno-cps.com
