DELTA NE12S0A0V10PNFA

FEATURES
High Efficiency:
94.0% @ 12Vin, 5V/10A out
Size: 10.4mm x 16.5mm x 11.0 mm
(0.41”×0.65”×0.43”)
Wide input range: 3.0V~13.8V
Output voltage programmable from
0.59Vdc to 5.1Vdc via external resistors
No minimum load required
Fixed frequency operation
Input UVLO, output OCP
Remote ON/OFF (Positive, 5pin version)
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950 (US & Canada), TUV
(EN60950) --pending
Delphi NE Series Non-Isolated Point of Load
DC/DC Modules: 3.0~13.8Vin, 0.59V-5.1Vout, 10Aout
OPTIONS
The Delphi NE 10A Series, 3.0~13.8V 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
for the datacom applications which cut the module size by almost 50%
in most of the cases compared to the first generation NC series POL
modules. The NE 10A 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 10A 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.
DATASHEET
DS_NE12S10A_02012007
Vertical or horizontal versions
APPLICATIONS
DataCom
Distributed power architectures
Servers and workstations
LAN/WAN applications
Data processing applications
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=200LFM, nominal Vin=12Vdc unless otherwise specified.)
PARAMETER
NOTES and CONDITIONS
NE12S0A0V/H10
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Operating Temperature (Vertical)
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Input Reflected-Ripple Current
Input Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Over temperature
Total output range
Output Voltage Ripple and Noise
Peak-to-Peak
Peak-to-Peak
Peak-to-Peak
Peak-to-Peak
RMS
Output Current Range
Output Voltage Over-shoot at Start-up
Output Voltage Under-shoot at Power-Off
Output DC Current-Limit Inception
Output short-circuit current RMS value
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time
Turn-On Transient
Start-Up Time, from On/Off Control
Start-Up Time, from input power
Minimum Output Capacitance
Maximum Output Startup Capacitive Load
EFFICIENCY
Vo=0.59V
Vo=0.9V
Vo=2.5V
Vo=5.0V
SINK EFFICIENCY
Vo=5.0V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Logic High
Logic Low
GENERAL SPECIFICATIONS
Calculated MTBF
Weight
DS_NE12S10A_02012007
Refer to Fig.25 for the measuring point
Max.
Units
3.0
0
-55
13.8
109
125
Vdc
°C
°C
3.0
13.8
V
3.1
2.8
0.3
4.5
80
10
5
60
12Vin, 5Vo, operating, full load
Vin=12V, Vout=5V
Remote OFF
120Hz
With a 0.1% trim resistor
Io=Io_min to Io_max
Vin=Vin_min to Vin_max
Ta=0~70°C
Over load, line, temperature regulation and set point
5Hz to 20MHz bandwidth
Full Load, 10uF Tan cap, 12Vin, 0.5Vo
Full Load, 10uF Tan cap, 12Vin, 0.9Vo
Full Load, 10uF Tan cap, 12Vin, 2.5Vo
Full Load, 10uF Tan cap, 12Vin, 5Vo
Full Load, 10uF Tan cap, 12Vin, 5Vo
Typ.
0.59
-1
± 0.5
± 0.2
± 0.3
-3
5.1
+1
V
%
±1
± 0.4
± 0.6
+3
%
%
%
%
10
15
30
60
10
4
mV
mV
mV
mV
mV
A
%
mV
%Iomax
Arms
300
300
100
mV
mV
µs
0
Vin=12V, Turn ON
Vin=12V, Turn OFF
Hiccup mode
10
10
0.5
100
200
110
12Vin, 5Vout, 10µF ceramic cap
50~100% load , 10A/uS
50~100% load , 10A/uS
Settling to be within regulation band (to 10% Vo deviation)
V
V
V
A
mA
mA
mA
dB
From Enable high to 90% of Vo
From Vin=12V to 90% of Vo
3
3
0
Full Load, 12Vin, 5Vo
1000
ms
ms
µF
µF
Vin=12V, Io=10A
Vin=12V, Io=10A
Vin=12V, Io=10A
Vin=12V, Io=10A
70
77.5
89.5
94
%
%
%
%
Vin=12V, Io=10A
91
%
Fixed
Positive logic (internally pulled high)
Module On (or leave the pin open)
Module Off
600
KHz
25℃, 300LFM, 80% load
0.8
0
0.3
TBD
2
V
V
Mhours
grams
2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter efficiency vs. output current
(0.59V output voltage, 12V input)
Figure 2: Converter efficiency vs. output current
(0.9V output voltage, 12V input)
Figure 3: Converter efficiency vs. output current
(1.8V output voltage, 12V input)
Figure 4: Converter efficiency vs. output current
(2.5V output voltage, 12V input)
Figure 5: Converter efficiency vs. output current
(3.3V output voltage, 12V input)
Figure 6: Converter efficiency vs. output current
(5.0V output voltage, 12V input)
DS_NE12S10A_02012007
3
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 12Vin, 0.59V/10A out
Figure 8: Output ripple & noise at 12Vin, 0.9V/10A out
Figure 9: Output ripple & noise at 12Vin, 1.8V/10A out
Figure 10: Output ripple & noise at 12Vin, 2.5V/10A out
Figure 11: Output ripple & noise at 12Vin, 3.3V/10A out
Figure 12: Output ripple & noise at 12Vin, 5.0V/10A out
DS_NE12S10A_02012007
4
ELECTRICAL CHARACTERISTICS CURVES (CON.)
0
0
0
0
Figure 13: Turn on delay time at 12Vin, 1.0V/10A out
Ch1: Vin Ch4: Vout
Figure 14: Turn on delay time Remote On/Off, 1.0V/10A out
Ch1:Enable Ch4: Vout
0
0
0
0
Figure 15: Turn on delay time at 12Vin, 3.3V/10A out
Ch1: Vin Ch4: Vout
Figure 16: Turn on delay time at Remote On/Off, 3.3V/10A out
Ch1: Enable 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
DS_NE12S10A_02012007
5
DESIGN CONSIDERATIONS
FEATURES DESCRIPTIONS
The NE10 is a single phase and voltage mode controlled
Buck topology. The output can be trimmed in the range
of 0.59Vdc to 5.1Vdc by a resistor from Trim pin to
Ground.
Enable (On/Off)
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.
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 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.
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 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
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.
15.05 × (R + 6.34 )
+ 0.8
6.34 × R
= VEN _ RTH − 0.3V
V EN _ RTH =
VEN _ FTH
Enable
NE10A/6A
R
Fig. 18. UVLO setting
V EN _ FTH is the turn-off threshold
V EN _ RTH is the turn-on threshold
R (Kohm) is the outen resistor connected from Enable
pin to the GND
An active high voltage will disable the input UVLO
function.
DS_NE12S10A_02012007
6
FEATURES DESCRIPTIONS (CON.)
The ENABLE input can be driven in a variety of ways as
shown in Figures 19 and 20. If the ENABLE signal
comes from the primary side of the circuit, the ENABLE
can be driven through either a bipolar signal transistor
(Figure 18).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 19).
Output Voltage Programming
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 Table 1.
ND
6A/10A
NE6A/10A
Vin
Trim
ND6A/10A
NE6A/10A
Vin
Vout
Enable
Vout
Rs
Enable
Trim
Ground
Ground
Ground
Ground
Figure 21: Trimming Output Voltage
Figure 19: Enable Input drive circuit for NE series
NDNE6A/10A
6A/10A
Vin
Enable
Ground
Vout
Trim
Ground
Figure 20: Enable input drive circuit example with isolation.
The NE10 module has a trim range of 1.0V to 3.3V. The
trim resistor equation for the NE10A is :
Rs (Ω) =
1184
Vout − 0.592
Vout is the output voltage setpoint
Rs is the resistance between Trim and Ground
Rs values should not be less than 240Ω
Input Under-Voltage Lockout
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.
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.
Output Voltage
Rs (Ω)
0.59V
+1 V
+1.5 V
+2.5 V
+3.3 V
+5.0V
open
2.4k
1.3K
619
436
268
+5.5V
240
Table 1: Typical trim resistor values
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. Please see the electrical characteristics for details
of the OCP function.
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.
DS_NE12S10A_02012007
7
FEATURES DESCRIPTIONS (CON.)
Output Capacitance
Voltage Margining Adjustment
There is output capacitor on the NE series modules.
Hence, an external output capacitor is required for stable
operation.
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 22 shows the circuit
configuration for output voltage margining adjustment.
NNE6A/10A
D 6A/10A
Vin
Reflected Ripple Current and Output Ripple and
Noise Measurement
The measurement set-up outlined in Figure 23 has been
used for both input reflected/ terminal ripple current and
output voltage ripple and noise measurements on NE
series converters.
Rmargin-down
Input reflected current measurement point
Vout
Ltest
DC-DC Converter
Vin+
Load
Trim
Enable
Rmargin-up
Cs
Cin
1uF
Ceramic
Rs
Ground
Ground
10uF
Tan
Output voltage ripple noise measurement point
Figure 22: Circuit configuration for output voltage margining
Cs=270µF*1, Ltest=2uH, Cin=270µF*1
Paralleling
Figure 23: Input reflected ripple/ capacitor ripple current and
output voltage ripple and noise measurement setup for NE10
NE10 converters do not have built-in current sharing
(paralleling) ability. Hence, paralleling of multiple NE10
converter is not recommended.
DS_NE12S10A_02012007
8
THERMAL CONSIDERATION
THERMAL CURVES (NE12S0A0V10)
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 25: Temperature measurement location* The allowed
maximum hot spot temperature is defined at 109℃
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=0.9V (Through PCB Orientation)
Output Current (A)
11
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’’).
600LFM
10
9
Natural
Convection
100LFM
8
7
200LFM
6
300LFM
5
Thermal Derating
400LFM
4
3
500LFM
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.
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 26: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=0.9V(Through PCB Orientation)
PWB
FACING PWB
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=2.5V (Through PCB Orientation)
Output Current (A)
11
MODULE
10
600LFM
9
Natural
Convection
8
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
100LFM
7
200LFM
6
50.8 (2.0”)
300LFM
5
4
AIR FLOW
400LFM
3
2
11 (0.43”)
22 (0.87”)
500LFM
1
0
25
Note: Wind tunnel test setup figure dimensions are in
millimeters and (Inches)
Figure 24: Wind tunnel test setup
DS_NE12S10A_02012007
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=2.5V(Through PCB Orientation)
9
THERMAL CURVES (NE12S0A0V10)
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=12V Vout=5.0V (Through PCB Orientation)
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=3.3V Vout=0.9V (Through PCB Orientation)
Output Current (A)
Output Current (A)
11
11
10
10
600LFM
9
9
Natural
Convection
8
8
Natural
Convection
7
100LFM
6
100LFM
200LFM
7
300LFM
6
200LFM
400LFM
5
5
300LFM
500LFM
4
4
400LFM
3
3
600LFM
2
2
500LFM
1
1
0
0
25
30
35
40
45
50
55
60
65
70
25
75
80
85
Ambient Temperature (℃)
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 31: Output current vs. ambient temperature and air
velocity @Vin=3.3V, Vout=0.9V(Through PCB Orientation)
Figure 28: Output current vs. ambient temperature and air
velocity @Vin=12V, Vout=5.0V(Through PCB Orientation)
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=5.0V Vout=0.9V (Through PCB Orientation)
Output Current (A)
11
30
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=3.3V Vout=2.5V (Through PCB Orientation)
Output Current (A)
11
10
10
Natural
Convection
9
Natural
Convection
9
100LFM
8
100LFM
8
200LFM
7
200LFM
7
300LFM
6
300LFM
6
400LFM
400LFM
5
5
500LFM
500LFM
4
4
3
600LFM
3
2
2
1
1
0
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 29: Output current vs. ambient temperature and air
velocity@ Vin=5V, Vout=0.9V(Through PCB Orientation)
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 32: Output current vs. ambient temperature and air
velocity @Vin=3.3V, Vout=2.5V(Through PCB Orientation)
NE12S0A0V10(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin=5.0V Vout=2.5V (Through PCB Orientation)
Output Current (A)
11
10
Natural
Convection
9
100LFM
8
200LFM
7
300LFM
6
400LFM
5
500LFM
4
3
600LFM
2
1
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 30: Output current vs. ambient temperature and air
velocity@ Vin=5.0V, Vout=2.5V(Through PCB Orientation)
DS_NE12S10A_02012007
10
MECHANICAL DRAWING
VERTICAL
HORIZONTAL
TBD
DS_NE12S10A_02012007
11
PART NUMBERING SYSTEM
NE
12
Product
Series
Input
Voltage
NE-
S
0A0
Number of
Output Voltage
outputs
12- 3.0~13.8V S- Single
Non-isolated
V
10
P
N
Mounting
Output
Current
ON/OFF
Logic
Pin
Length
P- Positive
N- 0.150”
0A0 - programmable H- Horizontal
output
10-10A
V- Vertical
F
A
Option
Code
F- RoHS 6/6 A-
5 pins
(Lead Free)
Series
MODEL LIST
Packaging
Input Voltage
Output Voltage
Output Current
Efficiency
12Vin @ 100% load
NE12S0A0V10PNFA
Vertical
3.0V~ 13.8Vdc
0.59V~ 5.1Vdc
10A
[email protected]
NE12S0A0H10PNFA
Horizontal
3.0V~ 13.8Vdc
0.59V~ 5.1Vdc
10A
[email protected]
Model Name
CONTACT: www.delta.com.tw/dcdc
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
Email: [email protected]
Asia & the rest of world:
Telephone: +886 3 4526107 ext. 6220
Fax: +886 3 4513485
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.
DS_NE12S10A_02012007
12