DCS04S0A0S03NFA [DELTA]
Non-Isolated Point of Load DC/DC Power Modules: 4.5~14Vin, 0.69V-5V/20Aout; 负荷DC / DC电源模块非隔离点: 4.5 〜 14Vin , 0.69V - 5V / 20Aout型号: | DCS04S0A0S03NFA |
厂家: | DELTA ELECTRONICS, INC. |
描述: | Non-Isolated Point of Load DC/DC Power Modules: 4.5~14Vin, 0.69V-5V/20Aout |
文件: | 总19页 (文件大小:915K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DCL12S0A0S20NFA
FEATURES
High efficiency:
93% @ 12Vin, 5V/20A out
92% @ 12Vin, 3.3V/20A out
90% @ 12Vin, 2.5V/20A out
89% @ 12Vin, 1.8V/20A out
83% @ 12Vin, 1.2V/20A out
79% @ 10Vin, 0.69V/20A out
Small size and low profile:
33.02x 13.46x 8.5mm (1.3”x 0.53”x 0.33”)
Surface mount packaging
Standard footprint
Voltage and resistor-based trim
Pre-bias startup
Output voltage tracking
No minimum load required
Output voltage programmable from
0.69Vdc to 5 Vdc via external resistor
Fixed frequency operation and ablity to
Synchronize with external clock
Input UVLO, output OCP
Remote on/off
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada)
CE mark meets 73/23/EEC and 93/68/EEC
directives
Delphi DCL, Non-Isolated Point of Load
DC/DC Power Modules: 4.5~14Vin,
0.69V-5V/20Aout
OPTIONS
Negative/Positive on/off logic
Vo Tracking feature
The Delphi Series DCL, 4.5-14V 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 DCL series provides
a programmable output voltage from 0.69 V to 5 V using an
external resistor and has flexible and programmable tracking
features to enable a variety of startup voltages as well as tracking
between power modules. This product family is available in
surface mount and provides up to 20A of output current in an
industry standard footprint. 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
Telecom / DataCom
Distributed power architectures
Servers and workstations
LAN / WAN applications
Data processing applications
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P1
TECHNICAL SPECIFICATIONS
PARAMETER
NOTES and CONDITIONS
DCL12S0A0S20NFA
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Sequencing Voltage
-0.3
-0.3
15
V
V
Vin max
Operating Ambient Temperature
Storage Temperature
-40
-55
85
125
℃
℃
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 (Io = 0, module
enabled)
Vo ≦ Vin –0.6
4.5
14
20
V
4.45
4.2
0.25
V
V
V
A
mA
Vin=4.5V to14V, Io=Io,max
Vin= 10V, Vo,set = 0.69 Vdc
Vin= 12V, Vo,set = 3.3 Vdc
60
74
mA
mA
Off Converter Input Current (VIN = 12.0Vdc,
module disabled)
3
Inrush Transient
1
A2S
mAp-p
dB
(5Hz to 20MHz, 1μH source impedance; Vin =0 to 14V,
Io=Iomax ;
Input Reflected Ripple Current, peak-to-peak
43
45
Input Ripple Rejection(120Hz)
OUTPUT CHARACTERISTICS
with 0.5% tolerance for external resistor used to set
output voltage)
(selected by an external resistor)
Output Voltage Set Point
-1.5
Vo,set
+1.5
5.0
%Vo,set
V
Output Voltage Adjustable Range
Output Voltage Regulation
0.69
For Vo>=2.5V
For Vo<2.5V
For Vo>=2.5V
For Vo<2.5V
0.4
10
10
5
%Vo,set
mV
mV
Line(VIN=VIN, min to VIN, max)
Load(Io=Io, min to Io, max)
mV
For Vo>=2.5V
For Vo<2.5V
0.5
5
%Vo,set
mV
Temperature(Tref=TA, min to TA, max)
Total Output Voltage Range
Output Voltage Ripple and Noise
Over sample load, line and temperature
5Hz to 20MHz bandwidth
-2.5
+2.5
%Vo,set
Vin= Vin nominal, Io=Io,min to Io,max, Co= 1µF+10uF
ceramic,
Peak-to-Peak
80
28
mV
mV
Vin= Vin nominal, Io=Io,min to Io,max, Co= 1µF+10uF
ceramic,
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 to 10% of Peak Deviation
Turn-On Transient
0
20
5
A
% Vo,set
% Io
140
2.6
Io,s/c
Adc
10µF Tan & 1µF Ceramic load cap, 2.5A/µs
50% Io, max to 100% Io, max
100% Io, max to 50% Io, max
380
380
30
mV
mV
µs
Io=Io.max
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Output Voltage Rise Time
Output Capacitive Load
EFFICIENCY
Time for Von/off to Vo=10% of Vo,set
Time for Vin=Vin,min to Vo=10% of Vo,set
Time for Vo to rise from 10% to 90% of Vo,set
Full load; ESR ≧0.15mΩ
2
2
5
ms
ms
ms
µF
94
1000
Vo=5.0V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.2V
Vo=0.69V
Vin=12V, 100% Load
Vin=12V, 100% Load
Vin=12V, 100% Load
Vin=12V, 100% Load
Vin=12V, 100% Load
Vin=10V, 100% Load
93
92
90
89
83
79
%
%
%
%
%
%
FEATURE CHARACTERISTICS
Switching Frequency
Synchronization Frequency Range
ON/OFF Control, (Negative logic)
Logic Low Voltage
Logic High Voltage
Logic Low Current
Logic High Current
500
kHz
kHz
520
600
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
0
2
1
Vin,max
10
V
V
µA
1
mA
ON/OFF Control, (Positive Logic)
Logic High Voltage
Logic Low Voltage
Logic Low Current
Logic High Current
Tracking Slew Rate Capability
Tracking Delay Time
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Vin-1
10
Vin,max
3.5
3
25
0.5
V
V
mA
µA
V/msec
ms
Delay from Vin.min to application of tracking voltage
Tracking Accuracy
Power-up
Power-down 0.5V/mS
0.5V/mS
100
150
mV
mV
GENERAL SPECIFICATIONS
MTBF
Weight
Io=80% of Io, max; Ta=25°C
32.51
5.5
M hours
grams
(TA = 25°C, airflow rate = 300 LFM, Vin = 4.5Vdc and 14.0Vdc, nominal Vout unless otherwise noted.)
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P2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter efficiency vs. output current (Vout= 0.69V)
Figure 3: Converter efficiency vs. output current (1.8V out)
Figure 2: Converter efficiency vs. output current (1.2V out)
Figure 4: Converter efficiency vs. output current (2.5V out)
Figure 6: Converter efficiency vs. output current (5.0V out)
Figure 5: Converter efficiency vs. output current 3.3V out)
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P3
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 7Vin, 0.69V/20A out
Figure 8: Output ripple & noise at 12Vin, 1.8V/20A out
CH1:VOUT, 20mV/div, 1uS/div
CH1:VOUT, 20mV/div, 1uS/div
Figure 9: Output ripple & noise at 12Vin, 3.3V/20A out
Figure 10: Output ripple & noise at 12Vin, 5.0V/20A out
CH1:VOUT, 20mV/div, 1uS/div
CH1:VOUT, 20mV/div, 1uS/div
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P4
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 11: Turn on delay time at 7Vin, 0.69V/20A out.
Figure 12: Turn on delay time at 12Vin, 1.8V/20A out.
(Green : VOUT, 0.5V/div, Yellow: VIN, 2V/div. 2mS/div)
(Green : VOUT, 0.5V/div, Yellow: VIN, 5V/div. 2mS/div)
Figure 13: Turn on delay time at 12Vin, 3.3V/20A out.
Figure 14: Turn on delay time at 12Vin, 5.0V/20A out.
(Green : VOUT, 1V/div, Yellow: VIN, 5V/div. 2mS/div)
(Green : VOUT, 2V/div, Yellow: VIN, 5V/div. 2mS/div)
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P5
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 15: Turn on delay time at remote on 7Vin, 0.69V/20A out.
Figure16: Turn on delay time at remote on 12Vin, 1.8V/20A out.
(Yellow: VOUT, 0.5V/div, Green: ON/OFF, 2V/div, 2mS/div)
(Yellow: VOUT, 0.5V/div, Green: ON/OFF, 2V/div, 2mS/div)
Figure 17: Turn on delay time at remote on 12Vin, 3.3V/20A out.
Figure 18: Turn on delay time at remote on 12Vin, 5.0V/20A out.
(Yellow: VOUT, 1V/div, Green: ON/OFF, 2V/div, 2mS/div)
(Yellow: VOUT, 2V/div, Green: ON/OFF, 2V/div, 2mS/div)
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P6
ELECTRICAL CHARACTERISTICS CURVES
Figure 19: Transient response to dynamic load change at
2.5A/μS from 50%~ 100%~50% of Io, max at 7Vin, 0.69Vout
(Cout = 1uF ceramic, 47uF*2 +10μFceramic)
Figure 20: Transient response to dynamic load change at
2.5A/μS from 50%~ 100%~50% of Io, max at 12Vin, 1.8Vout
(Cout = 1uF ceramic, 47uF*2 +10μFceramic)
Yellow : VOUT, 0.2V/div, 100uS/div
Yellow : VOUT, 0.2V/div, 100uS/div
Figure 21: Transient response to dynamic load change at
2.5A/μS from 50%~ 100%~50% of Io, max at 12Vin, 3.3Vout
(Cout = 1uF ceramic, 47uF*2 +10μFceramic)
Figure 22: Transient response to dynamic load change at
2.5A/μS from 50%~ 100%~50% of Io, max at 12Vin, 5Vout
(Cout = 1uF ceramic, 47uF*2 +10μFceramic)
Yellow : VOUT, 0.2V/div, 100uS/div
Yellow : VOUT, 0.2V/div, 100uS/div
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P7
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 23: Tracking function, Vtracking=6V, Vout= 5.0V, full load
Figure 24:Tracking function, Vtracking=6V, Vout= 5.0V, full load
Yellow : VOUT, (1V/div), Green: Tracking, (1V/div), 10mS/div
Yellow : VOUT, (1V/div), Green: Tracking, (1V/div), 500uS/div
Figure 25: Tracking function, Vtracking=0.8V, Vout=0.69V, full load Figure 26:Tracking function, Vtracking=0.8V, Vout= 0.69V, full load
Yellow: VOUT, 0.2V/div, Green : Tracking, 0.2V/div, 1mS/div
Yellow: VOUT, 0.2V/div, Green : Tracking, 0.2V/div, 5mS/div
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P8
TEST CONFIGURATIONS
DESIGN CONSIDERATIONS
Input Source Impedance
To maintain low noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the module. A
highly inductive source 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.
Safety Considerations
Figure 27: Input reflected-ripple current test setup
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 fast acting fuse
with a maximum rating of 30A in the positive input lead.
Note: Use a 10μF and 1μF capacitor. Scope measurement
should be made using a BNC connector.
Figure 28: Peak-peak output noise and startup transient
measurement test setup.
VI
Vo
GND
Figure 29: 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.
Vo Io
Vi Ii
(
)100 %
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P9
FEATURES DESCRIPTIONS
Input Under voltage Lockout
At input voltages below the input under voltage lockout limit, the
module operation is disabled. The module will begin to operate at
an input voltage above the under voltage lockout turn-on threshold.
Remote On/Off
The DCL 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 DCL series power modules.
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.
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 30). 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).
Remote Sense
The DCL provide Vo remote sensing to achieve proper regulation
at the load points and reduce effects of distribution losses on
output line. In the event of an open remote sense line, the module
shall maintain local sense regulation through an internal resistor.
The module shall correct for a total of 0.5V of loss. The remote
sense line impedance shall be < 10.
For negative logic module, the On/Off pin is pulled high with an
external pull-up 5kΩ resistor (see figure 31). 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)
Distribution Losses
Distribution Losses
Vo
Vin
Vo
Vin
Sense
RL
ION/OFF
On/Off
RL
Q1
GND
GND
Distribution
Distribution
Figure 32: Effective circuit configuration for remote sense
operation
Figure 30: Positive remote On/Off implementation
Vo
Vin
Rpull-
up
ION/OFF
On/Off
RL
Q1
GND
Figure 31: Negative remote On/Off implementation
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P10
FEATURES DESCRIPTIONS (CON.)
Table 1 provides Rtrim values required for some common
output voltages. By using a ±0.5% tolerance trim resistor with a
TC of
Output Voltage Programming
±100ppm, a set point tolerance of ±1.5% can be achieved as
specified in the electrical specification.
The output voltage of the DCL can be programmed to any
voltage between 0.69Vdc and 5.5Vdc by connecting one resistor
(shown as Rtrim in Figure 33) between the TRIM and GND pins
of the module. Without this external resistor, the output voltage of
the module is 0.69 Vdc. To calculate the value of the resistor
Rtrim for a particular output voltage Vo, please use the following
equation:
6.9
Rtrim
K
Vo 0.69
Rtrim is the external resistor in kΩ
Vo is the desired output voltage.
Certain restrictions apply on the output voltage set point
depending on the input voltage. These are shown in the Output
Voltage vs. Input Voltage Set Point Area plot in Fig. 34.
The Upper Limit curve shows that for output voltages of 0.9V
and lower, the input voltage must be lower than the maximum
of 14V.
For example, to program the output voltage of the DCL module to
5.0Vdc, Rtrim is calculated as follows:
6.9
Rtrim
K 1.601K
5.0 0.69
The Lower Limit curve shows that for output voltages of 3.3V
and higher, the input voltage needs to be larger than the
minimum of 4.5V
Figure 33: Circuit configulation for programming output voltage
using an external resister.
Figure 34: Output voltage vs input voltage setpoint area plot
showing limits were the output can be set for different.input
voltage.
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P11
FEATURE DESCRIPTIONS (CON.)
When an analog voltage is applied to the SEQ pin, the output
voltage tracks this voltage until the output reaches the
set-point voltage. The final value of the SEQ voltage must be
set higher than the set-point voltage of the module. The output
voltage follows the voltage on the SEQ pin on a one-to-one
basis. By connecting multiple modules together, multiple
modules can track their output voltages to the voltage applied
on the SEQ pin.
Voltage Margining
Output voltage margining can be implemented in the DCL
modules by connecting a resistor, R margin-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 35 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.
For proper voltage sequencing, first, input voltage is applied to
the module. The On/Off pin of the module is left unconnected
(or tied to GND for negative logic modules or tied to VIN for
positive logic modules) so that the module is ON by default.
After applying input voltage to the module, a minimum 10msec
delay is required before applying voltage on the SEQ pin. This
delay gives the module enough time to complete its internal
power-up soft-start cycle. During the delay time, the SEQ pin
should be held close to ground (nominally 50mV ± 20 mV).
This is required to keep the internal op-amp out of saturation
thus preventing output overshoot during the start of the
sequencing ramp. By selecting resistor R1 (see Figure. 37)
according to the following equation
24950
R1
Vin 0.05
Figure 35: Circuit configuration for output voltage margining
Output Voltage Sequencing
The DCL 12V 20A modules include a sequencing feature,
EZ-SEQUENCE that enables users to implement various types of
output voltage sequencing in their applications. This is
accomplished via an additional sequencing pin. When not using
the sequencing feature, either tie the SEQ pin to VIN or leave it
unconnected.
Figure 36: Sequential Start-up
The voltage at the sequencing pin will be 50mV when the
sequencing signal is at zero.
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P12
Power Good
FEATURE DESCRIPTIONS (CON.)
The DCL modules provide a Power Good (PGOOD) signal
that is implemented with an open-drain output to indicate that
the output voltage is within the regulation limits of the power
module. The PGOOD signal will be de-asserted to a low state
if any condition such as over temperature, over current or loss
of regulation occurs that would result in the output voltage
going ±10% outside the set point value. The PGOOD terminal
should be connected through a pull up resistor (suggested
value 100KΩ) to a source of 5VDC or lower.
After the 10msec delay, an analog voltage is applied to the SEQ
pin and the output voltage of the module will track this voltage on
a one-to-one volt bases until the output reaches the set-point
voltage. To initiate simultaneous shutdown of the modules, the
SEQ pin voltage is lowered in a controlled manner. The output
voltage of the modules tracks the voltages below their set-point
voltages on a one-to-one basis. A valid input voltage must be
maintained until the tracking and output voltages reach ground
potential.
When using the EZ-SEQUENCETM feature to control start-up
of the module, pre-bias immunity during startup is disabled. The
pre-bias immunity feature of the module relies on the module
being in the diode-mode during start-up. When using the
EZ-SEQUENCETM feature, modules goes through an internal
set-up time of 10msec, and will be in synchronous rectification
mode when the voltage at the SEQ pin is applied. This will result
in the module sinking current if a pre-bias voltage is present at
the output of the module.
Monotonic Start-up and Shutdown
The DCL 20A modules have monotonic start-up and shutdown
behavior for any combination of rated input voltage, output
current and operating temperature range.
Synchronization
The DCL 20A modules can be synchronized using an external
signal. Details of the SYNC signal are provided in below table.
If the synchronization function is not being used, leave the
SYNC pin floating.
Figure 37: Circuit showing connection of the sequencing signal
to the SEQ pin.
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P13
THERMAL CONSIDERATIONS
THERMAL CURVES
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.
AIRFLOW
Hence, the choice of equipment to characterize the thermal
performance of the power module is a wind tunnel.
Figure 39: Temperature measurement location
The allowed maximum hot spot temperature is defined at 117℃
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.
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
@Vin = 12V, Vo=5.0V (Airflow From Pin10 To Pin8)
OutputCurrent(A)
20
16
12
8
Natural
Convection
100LFM
200LFM
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.
300LFM
400LFM
Thermal Derating
4
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
0
25
30
35
40
45
50
55
60
65
70
75
80
85
AmbientTemperature (℃)
Figure 40: Output current vs. ambient temperature and air
velocity@Vin=12V, Vout=5.0V(Either Orientation)
temperature. If the temperature exceeds the maximum module
temperature, reliability of the unit may be affected.
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
@Vin = 12V, Vo=3.3V (Airflow From Pin10 To Pin8)
OutputCurrent(A)
PWB
MODULE
FANCING PWB
20
16
12
8
Natural
Convection
100LFM
200LFM
300LFM
400LFM
AIR VELOCITY
AND AMBIENT
TEMPERATURE
SURED BELOW
THE MODULE
4
AIR FLOW
0
25
30
35
40
45
50
55
60
65
70
75
80
85
AmbientTemperature (℃)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 41: Output current vs. ambient temperature and air
velocity@Vin=12V, Vout=3.3V(Either Orientation)
Figure 38: Wind tunnel test setup
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P14
THERMAL CURVES
THERMAL CURVES
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
@Vin = 7V, Vo=0.69V (Airflow From Pin10 To Pin8)
@Vin = 12V, Vo=2.5V (Airflow From Pin10 To Pin8)
OutputCurrent(A)
OutputCurrent(A)
20
16
12
8
20
16
12
8
Natural
Convection
Natural
Convection
100LFM
100LFM
200LFM
300LFM
400LFM
4
4
0
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
AmbientTemperature (℃)
AmbientTemperature (℃)
Figure 42: Output current vs. ambient temperature and air
Figure 45: Output current vs. ambient temperature and air
velocity@Vin=12V, Vout=2.5V(Either Orientation)
velocity@Vin=7V, Vout=0.69V(Either Orientation)
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
@Vin = 12V, Vo=1.8V (Airflow From Pin10 To Pin8)
OutputCurrent(A)
20
16
12
8
Natural
Convection
100LFM
200LFM
300LFM
4
0
25
30
35
40
45
50
55
60
65
70
75
80
85
AmbientTemperature (℃)
Figure 43: Output current vs. ambient temperature and air
velocity@Vin=12V, Vout=1.8V(Either Orientation)
DCL12S0A0S20NFAOutputCurrentvs.AmbientTemperatureand AirVelocity
OutputCurrent(A)
@Vin = 12V, Vo=1.2V (Airflow From Pin10 To Pin8)
20
16
12
8
Natural
Convection
100LFM
200LFM
4
0
25
30
35
40
45
50
55
60
65
70
75
80
85
AmbientTemperature (℃)
Figure 44: Output current vs. ambient temperature and air
velocity@Vin=12V, Vout=1.2V(Either Orientation)
DS_DCL12S0A0S20NFA_11152012
E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P15
PICK AND PLACE LOCATION
RECOMMENDED PAD LAYOUT
SURFACE-MOUNT TAPE & REEL
DS_DCL12S0A0S20NFA_11152012
E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P16
LEAD (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE
Note: The temperature refers to the pin of DCL, measured on the pin Vout joint.
LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE
Temp.
Peak Temp. 240 ~ 245 ℃
220℃
200℃
Ramp down
max. 4℃/sec.
Preheat time
90~120 sec.
150℃
25℃
Time Limited 75 sec.
above 220℃
Ramp up
max. 3℃ /sec.
Time
Note: The temperature refers to the pin of DCL, measured on the pin Vout joint..
DS_DCL12S0A0S20NFA_11152012
E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P17
MECHANICAL DRAWING
DS_DCL12S0A0S20NFA_11152012
E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P18
PART NUMBERING SYSTEM
12
S
0A0
S
20
N
F
A
DCL
Product
Series
Input
Voltage
Numbers
of Outputs
Output
Voltage
Package Output
On/Off
logic
Option Code
Type
Current
DCT-3A
04 - 2.4~5.5V
S - Single
0A0 -
S - SMD
03-3A
N- negative F- RoHS 6/6
P- positive (Lead Free)
A - Standard Function
DCS - 6A
DCM - 12A
DCL - 20A
12 – 4.5~14V
Programmable
06 - 6A
12 - 12A
20 - 20A
MODEL LIST
Efficiency
12Vin, 5Vdc @ 20A
Model Name
Packaging
SMD
Input Voltage
Output Voltage
Output Current
20A
DCL12S0A0S20NFA
4.5V ~ 14Vdc
0.69V~ 5.0Vdc
93.0%
CONTACT: www.deltaww.com/dcdc
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Email: DCDC@delta-corp.com
Europe:
Telephone: +31-20-655-0967
Fax: +31-20-655-0999
Asia & the rest of world:
Telephone: +886 3 4526107 x6220~6224
Fax: +886 3 4513485
Email: DCDC@delta-es.com
Email: DCDC@delta.com.tw
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_DCL12S0A0S20NFA_11152012
E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P19
相关型号:
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