DELTA DNL10S0A0S06NFD

FEATURES
Š
High efficiency: 89.5%@ 12Vin, 3.3V/6A out
Š
Small size and low profile: (SIP)
25.4x 12.7x 6.67mm (1.00” x 0.50” x 0.26”)
Š
Standard footprint
Š
Voltage and resistor-based trim
Š
Pre-bias startup
Š
Output Voltage tracking
Š
No minimum load required
Output voltage programmable from
Š
0.75Vdc to 5Vdc via external resistor
Š
Fixed frequency operation (350KHz)
Š
Input UVLO, output OTP, OCP
Š
Remote ON/OFF
Š
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing
facility
UL/cUL 60950-1 (US & Canada)
Š
Recognized, and TUV (EN60950-1)
certified.
CE mark meets 73/23/EEC and 93/68/EEC
Š
directives
Delphi DNS, Non-Isolated Point of Load
DC/DC Power Modules: 8.3~14Vin, 0.75~5.0V/6A out
The Delphi series DNS, 8.3~14V input, single output, non-isolated point of
load DC/DC converters are the latest offering from a world leader in power
systems technology and manufacturing ― Delta Electronics, Inc. The
OPTIONS
Š
Negative on/off logic
Š
Tracking feature
Š
SIP package
DNS series provides a programmable output voltage from 0.75V to 5.0V
through an external trimming resistor. The DNS converters have flexible
and programmable tracking and sequencing features to enable a variety
of sequencing and tracking between several point of load power modules.
This product family is available in a surface mount or SIP package and
provides up to 6A of output current in an industry standard footprint and
APPLICATIONS
pinout. With creative design technology and optimization of component
Š
Telecom / DataCom
placement, these converters possess outstanding electrical and thermal
Š
Distributed power architectures
performance and extremely high reliability under highly stressful operating
Š
Servers and workstations
Š
LAN / WAN applications
Š
Data processing applications
conditions.
DATASHEET
DS_DNS10SIP06_03092009
TECHNICAL SPECIFICATIONS
(TA = 25°C, airflow rate = 300 LFM, Vin = 8.3Vdc and 14Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
DNS10S0A0R06NFD
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Tracking Voltage
Operating Temperature
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Transient
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Adjustable Range
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Output Current Range
Output Voltage Over-shoot at Start-up
Output DC Current-Limit Inception
Output Short-Circuit Current (Hiccup mode)
DYNAMIC CHARACTERISTICS
Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time (Vo< 10% Peak Deviation )
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Output Voltage Rise Time
Output Capacitive Load
EFFICIENCY
Vo=0.75V
Vo=1.2V
Vo=1.5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vo=5.0V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Negative logic)
Logic Low Voltage
Logic High Voltage
Logic Low Current
Logic High Current
ON/OFF Control, (Positive Logic)
Logic High Voltage
Logic Low Voltage
Logic High Current
Logic Low Current
Tracking Slew Rate Capability
Tracking Delay Time
Tracking Accuracy
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
DS_DNS10SIP06_03092009
Refer to Figure 30 for measuring point
Vo,set≦3.63Vdc
Vo,set＞3.63Vdc
Typ.
0
0
-40
-55
8.3
8.3
12
12
Max.
Units
15
Vin,max
+120
+125
Vdc
Vdc
°C
°C
14
13.2
7.9
7.8
Vin=Vin,min to Vin,max, Io=Io,max
0.4
6
V
V
A
mA
mA
A2S
A
+2.0
5
% Vo,set
V
+3.5
% Vo,set
% Vo,set
% Vo,set
% Vo,set
4.5
100
2
Vin= Vin,min to Vin,max, Io=Io,min to Io,max
Vin=12V, Io=Io,max
Vin=Vin,min to Vin,max
Io=Io,min to Io,max
Ta= -40℃ to 85℃
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Vin=min to max, Io=min to max1µF ceramic, 10µF Tan
Vin=min to max, Io=min to max1µF ceramic, 10µF Tan
-2.0
0.7525
Vo,set
0.3
0.4
0.4
-2.5
50
15
200
2
mV
mV
A
% Vo,set
% Io
Adc
200
200
25
mVpk
mVpk
µs
0
Vout=3.3V
Io,s/c
10µF Tan & 1µF ceramic load cap, 2.5A/µs, Vin=12V
50% Io, max to 100% Io, max
100% Io, max to 50% Io, max
Io=Io.max
Von/off, Vo=10% of Vo,set
Vin=Vin,min, Vo=10% of Vo,set
Time for Vo to rise from 10% to 90% of Vo,set
Full load; ESR ≧1mΩ
Full load; ESR ≧10mΩ
3
3
4
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Vin=12V, Io=Io,max
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Delay from Vin.min to application of tracking voltage
Power-up, subject to 2V/mS
Power-down, subject to 1V/mS
Io=80%Io, max, Ta=25℃
Refer to Figure 30 for the measuring point
V
V
75
30
6
1
6
1000
3000
ms
ms
ms
µF
µF
72.5
80.0
83.0
85.0
87.5
89.5
91.5
%
%
%
%
%
%
%
350
kHz
-0.2
2.5
0.2
-0.2
0.2
0.1
10
100
200
2.12
4
124
0.3
Vin,max
10
1
V
V
uA
mA
Vin,max
0.3
10
1
2
V
V
uA
mA
V/msec
ms
mV
mV
200
400
M hours
grams
°C
2
ELECTRICAL CHARACTERISTICS CURVES
88
85
83
86
81
84
EFFICIENCY(%)
EFFICIENCY(%)
79
77
75
73
71
82
80
78
8.3V
8.3V
69
67
14V
14V
65
1
2
3
4
5
12V
76
12V
74
1
6
2
3
Figure 1: Converter efficiency vs. output current
(0.75V output voltage)
5
90
90
88
88
86
86
84
82
80
82
8.3V
12V
78
84
80
8.3V
78
12V
14V
76
14V
76
1
2
3
6
Figure 2: Converter efficiency vs. output current
(1.2V output voltage)
EFFICIENCY(%)
EFFICIENCY(%)
4
LOAD (A)
LOAD (A)
4
5
6
1
2
3
LOAD (A)
4
5
6
LOAD (A)
Figure 3: Converter efficiency vs. output current
(1.5V output voltage)
Figure 4: Converter efficiency vs. output current
(1.8V output voltage)
94
92
92
90
EFFICIENCY(%)
EFFICIENCY(%)
90
88
86
84
86
84
8.3V
8.3V
12V
82
88
82
12V
14V
14V
80
80
1
2
3
4
5
LOAD (A)
Figure 5: Converter efficiency vs. output current
(2.5V output voltage)
DS_DNS10SIP06_03092009
6
1
2
3
4
5
6
LOAD (A)
Figure 6: Converter efficiency vs. output current
(3.3V output voltage)
3
ELECTRICAL CHARACTERISTICS CURVES
96
94
EFFICIENCY(%)
92
90
88
86
8.3V
12V
84
13.2V
82
1
2
3
4
5
6
LOAD (A)
Figure 7: Converter efficiency vs. output current
(5.0V output voltage)
Figure 8: Output ripple & noise at 12Vin, 2.5V/6A out
Figure 9: Output ripple & noise at 12Vin, 5.0V/6A out
Vin
Remote on/off
Vo
Vo
Figure 10: Turn on delay time at 12vin, 5.0V/6A out
DS_DNS10SIP06_03092009
Figure 11: Turn on delay time at Remote On/Off, 5.0V/6A
out
4
ELECTRICAL CHARACTERISTICS CURVES
Remote on/off
Vo
Figure 12: Turn on Using Remote On/Off with external
capacitors (Co= 3000 µF), 5.0V/6A out
Figure 13: Typical transient response to step load change at
2.5A/μS from 100% to 50% of Io, max at 12Vin,
5.0V out (Cout = 1uF ceramic, 10μF tantalum)
Io:2A/DIV
Figure 15: Output short circuit current 12Vin, 0.75Vout
(5A/div)
DS_DNS10SIP06_03092009
Figure 14: Typical transient response to step load change at
2.5A/μS from 50% to 100% of Io, max at 12Vin,
5.0V out (Cout = 1uF ceramic, 10μF tantalum)
Io:2A/DIV
Figure 16: Turn on with Prebias 12Vin, 5V/0A out, Vbias
=3.3Vdc
5
TEST CONFIGURATIONS
DESIGN CONSIDERATIONS
Input Source Impedance
TO OSCILLOSCOPE
L
VI(+)
2 100uF
Tantalum
BATTERY
VI(-)
Note: Input reflected-ripple current is measured with a
simulated source inductance. Current is
measured at the input of the module.
Figure 17: Input reflected-ripple test setup
To maintain low-noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the
module. Figure 20 shows the input ripple voltage
(mVp-p) for various output models using 2x47 uF low
ESR tantalum capacitors (SANYO P/N:16TQC47M,
47uF/16V or equivalent) and 2x22 uF very low ESR
ceramic capacitors (TDK P/N:C3225X7S1C226MT,
22uF/16V or equivalent).
The input capacitance should be able to handle an AC
ripple current of at least:
Irms = Iout
COPPER STRIP
Vout ⎛
Vout ⎞
⎜1 −
⎟
Vin ⎝
Vin ⎠
Arms
Vo
Resistive
Load
GND
Note: Use a 10μF tantalum and 1μF capacitor. Scope
measurement should be made using a BNC
connector.
Figure 18: Peak-peak output noise and startup transient
measurement test setup
300
Input Ripple Voltage (mVp-p)
1uF
10uF
SCOPE
tantalum ceramic
250
200
150
100
Tantalum
Ceramic
50
0
0
CONTACT AND
DISTRIBUTION LOSSES
VI
1
2
3
4
5
6
Output Voltage (Vdc)
Vo
Io
I
LOAD
SUPPLY
GND
Figure 20: Input ripple voltage for various Output models,
Io = 6A (Cin = 2x47uF tantalum capacitors and
2x22uF ceramic capacitors at the input)
CONTACT RESISTANCE
Figure 19: Output voltage and efficiency measurement test
setup
Note: All measurements are taken at the module
terminals. When the module is not soldered (via
socket), place Kelvin connections at module
terminals to avoid measurement errors due to
contact resistance.
η =(
Vo × Io
) × 100 %
Vi × Ii
DS_DNS10SIP06_03092009
6
DESIGN CONSIDERATIONS (CON.)
FEATURES DESCRIPTIONS
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the module. An
input capacitance must be placed close to the modules
input pins to filter ripple current and ensure module
stability in the presence of inductive traces that supply
the input voltage to the module.
Remote On/Off
Safety Considerations
For safety-agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are
ELV.
The input to these units is to be provided with a
maximum 6A of glass type fast-acting fuse in the
ungrounded lead.
The DNS series power modules have an On/Off pin for
remote On/Off operation. Both positive and negative
On/Off logic options are available in the DNS series
power modules.
For positive logic module, connect an open collector
(NPN) transistor or open drain (N channel) MOSFET
between the On/Off pin and the GND pin (see figure 21).
Positive logic On/Off signal turns the module ON during
the logic high and turns the module OFF during the logic
low. When the positive On/Off function is not used, leave
the pin floating or tie to Vin (module will be On).
For negative logic module, the On/Off pin is pulled high
with an external pull-up resistor (see figure 22) Negative
logic On/Off signal turns the module OFF during logic
high and turns the module ON during logic low. If the
negative On/Off function is not used, leave the pin
floating or tie to GND. (module will be On)
Vo
Vin
ION/OFF
RL
On/Off
GND
Figure 21: Positive remote On/Off implementation
Vo
Vin
Rpull-up
ION/OFF
On/Off
RL
GND
Figure 22: Negative remote On/Off implementation
Over-Current Protection
To provide protection in an output over load fault
condition, the unit is equipped with internal over-current
protection. When the over-current protection is
triggered, the unit enters hiccup mode. The units
operate normally once the fault condition is removed.
DS_DNS10SIP06_03092009
7
FEATURES DESCRIPTIONS (CON.)
Over-Temperature Protection
The over-temperature protection consists of circuitry
that provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold
the module will shut down. The module will try to restart
after shutdown. If the over-temperature condition still
exists during restart, the module will shut down again.
This restart trial will continue until the temperature is
within specification.
Output Voltage Programming
The output voltage of the DNS can be programmed to
any voltage between 0.75Vdc and 5.0Vdc by connecting
one resistor (shown as Rtrim in Figure 23) between the
TRIM and GND pins of the module. Without this external
resistor, the output voltage of the module is 0.7525 Vdc.
To calculate the value of the resistor Rtrim for a particular
output voltage Vo, please use the following equation:
⎛ 10500 − 1000 ⎞ ⋅ Ω
⎟
⎝ Vo − 0.7525
⎠
Rtrim := ⎜
For example, to program the output voltage of the DNS
module to 3.3Vdc, Rtrim is calculated as follows:
⎛ 10500 − 1000 ⎞ ⋅ Ω
⎟
⎝ 2.5475
⎠
Rtrim := ⎜
Rtrim = 3.122 kΩ
DNS can also be programmed by applying a voltage
between the TRIM and GND pins (Figure 24). The
following equation can be used to determine the value of
Vtrim needed for a desired output voltage Vo:
Vtrim := 0.7 − ⎡⎣( Vo − 0.7525) ⋅ 0.0667⎤⎦
Vtrim is the external voltage in V
Vo is the desired output voltage
For example, to program the output voltage of a DNS
module to 3.3 Vdc, Vtrim is calculated as follows
Vtrim := 0.7 − ( 2.5475 ⋅ 0.0667)
Vtrim = 0.530V
Rtrim is the external resistor in Ω
Vo is the desired output voltage
Figure 23: Circuit configuration for programming output voltage
using an external resistor
Figure 24: Circuit Configuration for programming output voltage
using external voltage source
DS_DNS10SIP06_03092009
8
FEATURE DESCRIPTIONS (CON.)
Table 1 provides Rtrim values required for some common
output voltages, while Table 2 provides value of external
voltage source, Vtrim, for the same common output
voltages. By using a 1% tolerance trim resistor, set point
tolerance of ±2% can be achieved as specified in the
electrical specification.
Table 1
VO (V)
0.7525
1.2
1.5
1.8
2.5
3.3
5.0
Rtrim (KΩ)
Open
22.464
13.047
9.024
5.009
3.122
1.472
Table 2
VO (V)
0.7525
1.2
1.5
1.8
2.5
3.3
5.0
Vtrim (V)
Open
0.670
0.650
0.630
0.583
0.530
0.4167
The amount of power delivered by the module is the
voltage at the output terminals multiplied by the output
current. When using the trim feature, the output voltage
of the module can be increased, which at the same
output current would increase the power output of the
module. Care should be taken to ensure that the
maximum output power of the module must not exceed
the maximum rated power (Vo.set x Io.max ≤ P max).
Voltage Margining
Output voltage margining can be implemented in the
DNS modules by connecting a resistor, Rmargin-up, from the
Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the
Trim pin to the output pin for margining-down. Figure 25
shows the circuit configuration for output voltage
margining. If unused, leave the trim pin unconnected. A
calculation tool is available from the evaluation
procedure, which computes the values of Rmargin-up and
Rmargin-down for a specific output voltage and margin
percentage.
Vin
Vo
Rmargin-down
Q1
On/Off
Trim
Rmargin-up
Rtrim
Q2
GND
Figure 25: Circuit configuration for output voltage margining
Voltage Tracking
The DNS family was designed for applications that have
output voltage tracking requirements during power-up
and power-down. The devices have a TRACK pin to
implement three types of tracking method: sequential
start-up, simultaneous and ratio-metric. TRACK simplifies
the task of supply voltage tracking in a power system by
enabling modules to track each other, or any external
voltage, during power-up and power-down.
By connecting multiple modules together, customers can
get multiple modules to track their output voltages to the
voltage applied on the TRACK pin.
DS_DNS10SIP06_03092009
9
FEATURE DESCRIPTIONS (CON.)
The output voltage tracking feature (Figure 26 to Figure
28) is achieved according to the different external
connections. If the tracking feature is not used, the
TRACK pin of the module can be left unconnected or tied
to Vin.
For proper voltage tracking, input voltage of the tracking
power module must be applied in advance, and the
remote on/off pin has to be in turn-on status. (Negative
logic: Tied to GND or unconnected. Positive logic: Tied to
Vin or unconnected)
PS1
PS1
PS2
PS2
+△V
PS1
PS1
PS2
PS2
Figure 28: Ratio-metric
Figure 26: Sequential
PS1
PS1
PS2
PS2
Figure 27: Simultaneous
DS_DNS10SIP06_03092009
10
FEATURE DESCRIPTIONS (CON.)
Sequential Start-up
Ratio-Metric
Sequential start-up (Figure 26) is implemented by placing
an On/Off control circuit between VoPS1 and the On/Off pin
of PS2.
Ratio–metric (Figure 28) is implemented by placing the
voltage divider on the TRACK pin that comprise R1 and
R2, to create a proportional voltage with VoPS1 to the
Track pin of PS2.
PS1
PS2
Vin
Vin
VoPS1
VoPS2
R3
On/Off
The following equation can be used to calculate the
value of R1 and R2.
The suggested value of R2 is 10kΩ.
R1
Q1
On/Off
R2
For Ratio-Metric applications that need the outputs of
PS1 and PS2 reach the regulation set point at the same
time.
C1
VO ,PS 2
VO , PS1
=
R2
R1 + R2
PS1
Simultaneous
PS2
Vin
Vin
VoPS1
Simultaneous tracking (Figure 27) is implemented by
using the TRACK pin. The objective is to minimize the
voltage difference between the power supply outputs
during power up and down.
The simultaneous tracking can be accomplished by
connecting VoPS1 to the TRACK pin of PS2. Please note
the voltage apply to TRACK pin needs to always higher
than the VoPS2 set point voltage.
VoPS2
R1
TRACK
R2
On/Off
On/Off
The high for positive logic
The low for negative logic
PS2
PS1
Vin
Vin
VoPS1
VoPS2
TRACK
On/Off
On/Off
DS_DNS10SIP06_03092009
11
THERMAL CONSIDERATIONS
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.
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 height of this fan duct is constantly kept
at 25.4mm (1’’).
Thermal Derating
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.
PWB
FACING PWB
MODULE
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
50.8 (2.0”)
AIR FLOW
12.7 (0.5”)
25.4 (1.0”)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 29: Wind tunnel test setup
DS_DNS10SIP06_03092009
12
THERMAL CURVES
DNS10S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 12V, Vo = 0.75V (Either Orientation)
Output Current(A)
7
6
5
4
Natural
Convection
200LFM
3
100LFM
300LFM
400LFM
500LFM
2
1
0
30
Figure 30: Temperature measurement location
The allowed maximum hot spot temperature is defined at 120℃
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 33: DNS0A0R06(Standard) Output current vs. ambient
temperature and air velocity@ Vin=12V, Vout=0.75V (Either
Orientation)
DNS10S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 12V, Vo = 5.0V (Either Orientation)
Output Current(A)
7
6
Natural
Convection
5
4
3
100LFM
300LFM
200LFM
400LFM
500LFM
600LFM
2
1
0
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 31:DNS0A0R06(Standard) Output current vs. ambient
temperature and air velocity@ Vin=12V, Vout=5.0V (Either
Orientation)
DNS10S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 12V, Vo = 1.8V (Either Orientation)
Output Current(A)
7
6
5
Natural
Convection
200LFM
100LFM
300LFM
4
3
400LFM
2
500LFM
1
0
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 32: DNS0A0R06(Standard)Output current vs. ambient
temperature and air velocity@ Vin=12V, Vout=1.8V (Either
Orientation)
DS_DNS10SIP06_03092009
13
MECHANICAL DRAWING
SMD PACKAGE (OPTIONAL)
DS_DNS10SIP06_03092009
SIP PACKAGE
14
PART NUMBERING SYSTEM
DNS
10
S
0A0
R
06
P
Product
Series
Input Voltage
Numbers
of Outputs
Output
Voltage
Package
Type
Output
Current
On/Off
logic
DNS - 6A
04 - 2.8V ~ 5.5V
S - Single
R - SIP
06 - 6A
DNM -10A
10 - 8.3V ~14V
0A0 -
Programmable S - SMD
F
N- negative
P- positive
D
Option Code
F- RoHS 6/6
D - Standard Function
(Lead Free)
DNL - 16A
MODEL LIST
Model Name
Packaging Input Voltage Output Voltage
Output
Current
On/Off logic
Efficiency
12Vin @ 100% load
DNS10S0A0R06NFD
SIP
8.3V ~ 14V
0.75V ~ 5.0V
6A
Negative
89.5% (3.3V)
DNS10S0A0R06PFD
SIP
8.3V ~ 14V
0.75V ~ 5.0V
6A
Positive
89.5% (3.3V)
DNS10S0A0S06NFD
SMD
8.3V ~ 14V
0.75V ~ 5.0V
6A
Negative
89.5% (3.3V)
DNS10S0A0S06PFD
SMD
8.3V ~ 14V
0.75V ~ 5.0V
6A
Positive
89.5% (3.3V)
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:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email: [email protected]
Asia & the rest of world:
Telephone: +886 3 4526107
ext 6220~6224
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
DS_DNS10SIP06_03092009
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