FEATURES
Š
High Efficiency: 94.5% @ 12Vin, 5V/6A out
Size: Vertical :
10.4mm x 16.5mm x 11.0 mm
Š
(0.41” × 0.65” × 0.43”)
Horizontal:
10.4mm x 16.5mm x 11.5 mm
(0.41” × 0.65” × 0.45”)
Š
Š
Wide input range: 3.1V~13.8V
Output voltage programmable from
0.59Vdc to 5.1Vdc via external resistors
No minimum load required
Š
Š
Š
Š
Š
Fixed frequency operation
Input UVLO, output OCP
Remote ON/OFF (Positive, 5 pin version)
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada)
Š
Š
Recognized, and TUV (EN60950-1) Certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
Delphi NE Series Non-Isolated Point of Load
DC/DC Modules: 3.1~13.8Vin, 0.59V-5.1Vout, 6Aout
OPTIONS
Š
Vertical or horizontal versions
The Delphi NE 6A Series, 3.1~13.8V wide input, wide trim single
output, non-isolated point of load (POL) DC/DC converters are the
latest offering from a world leader in power systems technology and
manufacturing — Delta Electronics, Inc. The NE product family is
the second generation, non-isolated point-of-load DC/DC power
modules which cut the module size by almost 50% in most of the
cases compared to the first generation NC series POL modules. The
NE 6A product family provides an ultra wide input range to support
3.3V, 5V, 8V, 9.6V, and 12V bus voltage point-of-load applications and
it offers up to 6A of output current in a vertically or horizontally
mounted through-hole miniature package and the output can be
resistor trimmed from 0.59Vdc to 5.1Vdc. It provides a very cost
effective, high efficiency, and high density point of load solution. With
creative design technology and optimization of component
placement, these converters possess outstanding electrical and
thermal performance, as well as extremely high reliability under highly
stressful operating conditions.
APPLICATIONS
Š
Š
Š
Š
Š
DataCom
Distributed power architectures
Servers and workstations
LAN/WAN applications
Data processing applications
DATASHEET
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ELECTRICAL CHARACTERISTICS CURVE
Figure 1: Converter efficiency vs. output current
Figure 2: Converter efficiency vs. output current
(0.59V output voltage, 12V input voltage)
(0.9V output voltage, 12V input voltage)
Figure 3: Converter efficiency vs. output current
Figure 4: Converter efficiency vs. output current
(1.8V output voltage, 12V input voltage)
(2.5V output voltage, 12V input voltage)
Figure 5: Converter efficiency vs. output current
Figure 6: Converter efficiency vs. output current
(3.3V output voltage, 12V input voltage)
(5.0V output voltage, 12V input voltage)
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ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 12Vin, 0.59V/6A out
Figure 8: Output ripple & noise at 12Vin, 0.9V/6A out
Figure 9: Output ripple & noise at 12Vin, 1.8V/6A out
Figure 10: Output ripple & noise at 12Vin, 2.5V/6A out
Figure 11: Output ripple & noise at 12Vin, 3.3V/6A out
Figure 12: Output ripple & noise at 12Vin, 5.0V/6A out
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ELECTRICAL CHARACTERISTICS CURVES (CON.)
0
0
0
0
Figure 13: Turn on delay time at 12Vin, 1.0V/6A out
Ch1: Vin Ch4: Vout
Figure 14: Turn on delay time Remote On/Off, 1.5V/6A out
Ch1:Enable Ch4: Vout
0
0
0
0
Figure 15: Turn on delay time at 12Vin, 2.5V/6A out
Figure 16: Turn on delay time at Remote On/Off, 3.3V/6A out
Ch1: Enable Ch4: Vout
Ch1: Vin Ch4: Vout
0
0
Figure 17: Typical transient response to step load change at
10A/μS from 50%~100% load, at 12Vin, 2.5V out
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FEATURES DESCRIPTIONS
DESIGN CONSIDERATIONS
Enable (On/Off)
The NE12S0A0V(H)06 uses a single phase and voltage
mode controlled buck topology. The output can be
trimmed from 0.59Vdc to 5.1Vdc by a resistor from Trim
pin to Ground.
The ENABLE (on/off) input allows external circuitry to put
the NE converter into a low power dissipation (sleep)
mode. Positive ENABLE is available as standard. With
the active high function, the output is guaranteed to turn
on if the ENABLE pin is driven above 0.8V. The output will
turn off if the ENABLE pin voltage is pulled below 0.3V.
The converter can be turned ON/OFF by remote control
with positive on/off (ENABLE pin) logic. The converter DC
output is disabled when the signal is driven low (below
0.3V). This pin is also used as the input turn on threshold
judgment. Its voltage is percent of Input voltage during
floating due to internal connection. So we do not suggest
using an active high signal (higher than 0.8V) to turn on
the module because this high level voltage will disable
UVLO function. The module will turn on when this pin is
floating and the input voltage is higher than the threshold.
Undervoltage Lockout
The ENABLE pin is also used as input UVLO function.
Leaving the enable floating, the module will turn on if the
input voltage is higher than the turn-on threshold and turn
off if the input voltage is lower than the turn-off threshold.
The default turn-on voltage is 3.1V with 300mV
hysteresis.
The converter can protect itself by entering hiccup mode
against over current and short circuit condition. Also, the
converter will shut down when an over voltage protection
is detected.
The turn-on voltage may be adjusted with a resistor
placed between the “Enable” pin and “Ground” pin. The
equation for calculating the value of this resistor is:
Safety Considerations
15.05×
6.34× R
VEN _ FTH = VEN _ RTH − 0.3V
R + 6.34
)
VEN _ RTH
=
+ 0.8
It is recommended that the user to provide a very
fast-acting type fuse in the input line for safety. The output
voltage set-point and the output current in the application
could define the amperage rating of the fuse.
VEN _ FTH is the turn-off threshold
VEN _ RTH is the turn-on threshold
R (Kohm) is the outen resistor connected from Enable pin
to the GND
Enable
NE10A/6A
R
Fig. 18. UVLO setting
An active high voltage will disable the input UVLO
function.
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Output Voltage Programming
FEATURES DESCRIPTIONS (CON.)
The output voltage of the NE series is trimmable by
connecting an external resistor between the trim pin and
output ground as shown Figure 21 and the typical trim
resistor values are shown in Figure 22.
The ENABLE input can be driven in a variety of ways as
shown in Figures 18 and 19. If the ENABLE signal comes
from the primary side of the circuit, the ENABLE can be
driven through either a bipolar signal transistor (Figure
19).If the enable signal comes from the secondary side,
then an opto-coupler or other isolation devices must be
used to bring the signal across the voltage isolation
(please see Figure 20).
NE6A/10A
Vin
Vout
Trim
Enable
NE6A/10A
Rs
Vout
Vin
Ground
Ground
Enable
Ground
Trim
Figure 21: Trimming Output Voltage
Ground
The NE06 module has a trim range of 0.59V to 5.0V.
The trim resistor equation for the NE06A is :
Figure 19: Enable Input drive circuit for NE series
1184
Rs(Ω) =
NE6A/10A
Vout
Vout − 0.592
Vin
Enable
Trim
Vout is the output voltage setpoint
Rs is the resistance between Trim and Ground
Rs values should not be less than 240Ω
Ground
Ground
Figure 20: Enable input drive circuit example with isolation.
Output Voltage
Rs (Ω)
0.59V
+1 V
open
2.4k
1.3K
619
Input Under-Voltage Lockout
+1.5 V
+2.5 V
+3.3 V
The input under-voltage lockout prevents the converter
from being damaged while operating when the input
voltage is too low. The lockout occurs between 2.8V to
3.1V.
436
+5.0V
268
Figure 22: Typical trim resistor values
Over-Current and Short-Circuit Protection
The NE series modules have non-latching over-current
and short-circuit protection circuitry. When over current
condition occurs, the module goes into the non-latching
hiccup mode. When the over-current condition is
removed, the module will resume normal operation.
An over current condition is detected by measuring the
voltage drop across the MOSFETs. The voltage drop
across the MOSFET is also a function of the MOSFET’s
Rds(on). Rds(on) is affected by temperature, therefore
ambient temperature will affect the current limit inception
point.
The detection of the Rds(on) of MOSFETs also acts as
an over temperature protection since high temperature
will cause the Rds(on) of the MOSFETs to increase,
eventually triggering over-current protection.
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FEATURES DESCRIPTIONS (CON.)
Output Capacitance
There is internal output capacitor on the NE series
modules. Hence, no external output capacitor is required
for stable operation.
Voltage Margining Adjustment
Output voltage margin adjusting can be implemented in
the NE modules by connecting a resistor, Rmargin-up, from
the Trim pin to the Ground for margining up the output
voltage. Also, the output voltage can be adjusted lower
by connecting a resistor, Rmargin-down, from the Trim pin to
the voltage source Vt. Figure 23 shows the circuit
configuration for output voltage margining adjustment.
Vt
Reflected Ripple Current and Output Ripple and
Noise Measurement
The measurement set-up outlined in Figure 24 has been
used for both input reflected/ terminal ripple current and
output voltage ripple and noise measurements on NE
series converters.
NE6A/10A
Input reflected current measurement point
Rmargin-down
Vin
Vout
Ltest
Vin+
Load
DC-DC Converter
Trim
Cs
Enable
Ground
Cin
Rmargin-up
1uF
Ceramic
10uF
Tan
Rs
Output voltage ripple noise measurement point
Ground
Figure 23: Circuit configuration for output voltage margining
Cs=270μF*1, Ltest=2uH, Cin=270μF*1
Figure 24: Input reflected ripple/ capacitor ripple current and
output voltage ripple and noise measurement setup for NE06
Paralleling
NE06 converters do not have built-in current sharing
(paralleling) ability. Hence, paralleling of multiple NE06
converters is not recommended.
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THERMAL CONSIDERATION
THERMAL CURVES (VERTICAL)
Thermal management is an important part of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
Thermal Testing Setup
Delta’s DC/DC power modules are characterized in
heated vertical wind tunnels that simulate the thermal
environments encountered in most electronics
equipment. This type of equipment commonly uses
vertically mounted circuit cards in cabinet racks in which
the power modules are mounted.
Figure 26: Temperature measurement location* The allowed
maximum hot spot temperature is defined at 113℃
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=12V Vout=0.9V (Either Orientation)
6
Natural
Convection
The following figure shows the wind tunnel
characterization setup. The power module is mounted
on a test PWB and is vertically positioned within the
wind tunnel. The space between the neighboring PWB
and the top of the power module is constantly kept at
6.35mm (0.25’’).
5
100LFM
4
200LFM
300LFM
3
400LFM
2
Thermal Derating
1
0
Heat can be removed by increasing airflow over the
module. To enhance system reliability, the power
module should always be operated below the maximum
operating temperature. If the temperature exceeds the
maximum module temperature, reliability of the unit may
be affected.
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 27: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=0.9V (Either Orientation)
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
PWB
FACING PWB
@Vin=12V Vout=2.5V (Either Orientation)
6
MODULE
Natural
Convection
5
100LFM
200LFM
4
300LFM
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
3
400LFM
50.8 (2.0”)
500LFM
2
AIR FLOW
1
0
11 (0.43”)
22 (0.87”)
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 28: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=2.5V (Either Orientation)
Note: Wind tunnel test setup figure dimensions are in
millimeters and (Inches)
Figure 25: Wind tunnel test setup
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THERMAL CURVES (VERTICAL)
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=3.3V Vout=0.9V (Either Orientation)
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
Output Current (A)
@Vin=12V Vout=5.0V (Either Orientation)
6
5
4
3
2
1
0
6
Natural
Convection
Natural
Convection
5
100LFM
200LFM
4
300LFM
400LFM
3
2
1
0
500LFM
600LFM
25
30
35
40
45
50
55
60
65
70
75
80
85
25
30
35
40
45
50
55
60
65
70
75 85
80
Ambient Temperature (℃)
Ambient Temperature (℃)
Figure 32: Output current vs. ambient temperature and air
Figure 29: Output current vs. ambient temperature and air
velocity @Vin=3.3V, Vout=0.9V (Either Orientation)
velocity @Vin=12V, Vout=5.0V (Either Orientation)
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=3.3V Vout=2.5V (Either Orientation)
Output Current (A)
@Vin=5.0V Vout=0.9V (Either Orientation)
6
6
Natural
Convection
Natural
Convection
5
5
4
3
2
1
0
4
3
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Ambient Temperature (℃)
Figure 33: Output current vs. ambient temperature and air
Figure 30: Output current vs. ambient temperature and air
velocity@ Vin =3.3V, Vout=2.5V (Either Orientation)
velocity@ Vin =5V, Vout=0.9V (Either Orientation)
NE12S0A0V06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=5.0V Vout=2.5V (Either Orientation)
6
Natural
Convection
5
4
3
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 31: Output current vs. ambient temperature and air
velocity@ Vin =5V, Vout=2.5V (Either Orientation)
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THERMAL CURVES (HORIZONTAL)
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=5.0V (Either Orientation)
Output Current (A)
6
5
4
3
2
1
0
Natural
Convection
100LFM
200LFM
300LFM
400LFM
500LFM
600LFM
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 37: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=5.0V (Either Orientation)
Figure 34: Temperature measurement location* The allowed
maximum hot spot temperature is defined at 118℃
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=12V Vout=0.9V (Either Orientation)
Output Current (A)
@Vin=5.0V Vout=0.9V (Either Orientation)
6
6
Natural
Convection
Natural
Convection
5
5
100LFM
100LFM
4
4
200LFM
300LFM
3
3
2
1
0
400LFM
2
1
0
500LFM
25
30
35
40
45
50
55
60
65
70
75
80
85
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Ambient Temperature (℃)
Figure 35: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=0.9V (Either Orientation)
Figure 38: Output current vs. ambient temperature and air
velocity@ Vin =5V, Vout=0.9V (Either Orientation)
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=2.5V (Either Orientation)
Output Current (A)
@Vin=5.0V Vout=2.5V (Either Orientation)
6
6
Natural
Convection
Natural
Convection
5
5
4
3
2
1
0
100LFM
100LFM
4
200LFM
300LFM
3
400LFM
2
500LFM
600LFM
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Ambient Temperature (℃)
Figure 36: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=2.5V (Either Orientation)
Figure 39: Output current vs. ambient temperature and air
velocity@ Vin =5V, Vout=2.5V (Either Orientation)
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THERMAL CURVES (HORIZONTAL)
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=3.3V Vout=0.9V (Either Orientation)
6
Natural
Convection
5
100LFM
4
3
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 40: Output current vs. ambient temperature and air
velocity @Vin=3.3V, Vout=0.9V (Either Orientation)
NE12S0A0H06(standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current (A)
@Vin=3.3V Vout=2.5V (Either Orientation)
6
Natural
Convection
5
100LFM
4
3
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 41: Output current vs. ambient temperature and air
velocity@ Vin =3.3V, Vout=2.5V (Either Orientation)
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MECHANICAL DRAWING
VERTICAL
HORIZONTAL
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PART NUMBERING SYSTEM
V
P
N
F
NE
12
S
0A0
06
A
Product
Series
Input
Voltage
Number of
outputs
Output
Voltage
Output
Current
ON/OFF
Logic
Pin
Length
Mounting
Option Code
A - 5 pins
NE-
12- 3.1~13.8V S- Single output 0A0 -
H- Horizontal
V- Vertical
06-06A
P- Positive N- 0.150” F- RoHS 6/6
(Lead Free)
Non-isolated
Series
programmable
MODEL LIST
Efficiency
12Vin @ 100% load
Model Name
Packaging
Input Voltage
Output Voltage Output Current
NE12S0A0V06PNFA
NE12S0A0H06PNFA
Vertical
3.1V~ 13.8Vdc
3.1V~ 13.8Vdc
0.59V~ 5.1Vdc
0.59V~ 5.1Vdc
6A
6A
94.5%@5Vout
Horizontal
94.5%@5Vout
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email: [email protected]
Europe:
Telephone: +41 31 998 53 11
Fax: +41 31 998 53 53
Asia & the rest of world:
Telephone: +886 3 4526107 ext. 6220
Fax: +886 3 4513485
Email: [email protected]
Email: [email protected]
WARRANTY
Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon
request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta
for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license
is granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these
specifications at any time, without notice.
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