DCM04S0A0S12PFA - Delta Electronics

DCM04S0A0S12PFA
FEATURES
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Delphi DCM, Non-Isolated Point of Load
DC/DC Power Modules: 2.4-5.5Vin,
0.6-3.3V/12Aout
High efficiency: 95% @ 5.0Vin, 3.3V/12A out
Small size and low profile:
20.3x 11.4x 8.5mm (0.8”x 0.45”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
0.6Vdc to 3.3Vdc via external resistor
Fixed frequency operation
Input UVLO, output OCP
Remote on/off
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada)
OPTIONS
Š
The Delphi Series DCM, 2.4-5.5V input, single output,
Š
Negative on/off logic
Tracking feature
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 DCM series
provides a programmable output voltage from 0.6V to 3.3V
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 12A of output current in an industry standard footprint.
APPLICATIONS
With creative design technology and optimization of
Š
Telecom / DataCom
component
possess
Š
Distributed power architectures
outstanding electrical and thermal performance, as well as
Š
Servers and workstations
extremely high reliability under highly stressful operating
Š
LAN / WAN applications
conditions.
Š
Data processing applications
placement,
these
DS_ DCM04S0A0S12PFA _03192012
converters
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P1
TECHNICAL SPECIFICATIONS
PARAMETER
NOTES and CONDITIONS
DCM04S0A0S12PFA
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Tracking Voltage
Operating Ambient 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
Input Reflected Ripple Current,
peak-to-peak
Input Ripple Rejection (120Hz)
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vo ≦ Vin –0.6
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
Settling Time to 10% of 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=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
Vo=1.2V
Vo=0.6V
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 Low Current
Logic High Current
Tracking Slew Rate Capability
Tracking Delay Time
Tracking Accuracy
GENERAL SPECIFICATIONS
MTBF
Weight
Max.
Units
-0.3
-0.3
-40
-55
6
Vin,max
85
125
Vdc
Vdc
℃
°C
2.4
5.5
V
2.2
2.0
Vin=2.4V to 5.5V, Io=Io,max
Vin=5V
Vin=5V
V
V
A
mA
mA
A2S
11
50
5
1
(5Hz to 20MHz, 1µH source impedance; VIN =0 to 5.5V, Io=
Iomax ;
with 0.5% tolerance for
external resistor used to set output voltage)
Output Voltage Adjustable Range
Output Voltage Regulation
Over Line
Typ.
For Vo>=2.5V
For Vo<2.5V
For Vo>=2.5V
For Vo<2.5V
Ta=-40℃ to 85℃
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 0.1µF ceramic, 10µF ceramic
Full Load, 0.1µF ceramic, 10µF ceramic
-1.5
49
mAp-p
-30
dB
+1.5
% Vo,set
0.6
Vo,set
3.3
V
-3.0
0.4
10
15
10
0.4
+3.0
% Vo,set
mV
mV
mV
% Vo,set
% Vo,set
35
15
12
3
250
2.4
mV
mV
A
% Vo,set
% Iomax
Adc
200
200
20
mV
mV
µs
3
3
3
ms
ms
ms
µF
25
10
0
Vout=3.3V
Hiccup mode
Io,s/c
10µF Ceramic & 0.1µF Ceramic load cap,
2.5A/µs,Co=47u,Vin=5V,Vo=1.8V
0-50% Iomax
50% Iomax-0
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 ≧0.15mΩ
47
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
5
800
95.0
94.0
91.5
90.0
89.0
81.0
%
%
%
%
%
%
600
kHz
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
-0.2
Vin-0.8
Vin-1.6
Vin,max
200
1
V
V
µA
mA
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
1.6
-0.3
Vin,max
0.3
1
10
2
V
V
mA
µA
V/msec
ms
mV
mV
Delay from Vin.min to application of tracking voltage
Power-up
2V/mS
Power-down 1V/mS
Io=80% of Io, max; Ta=25°C
0.1
10
100
100
TBD
4.8
M hours
grams
(TA = 25°C, airflow rate = 300 LFM, Vin =2.4Vdc to 5.5Vdc, nominal Vout unless otherwise noted.)
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter efficiency vs. output current (0.6V out)
Figure 2: Converter efficiency vs. output current (1.0V out)
Figure 3: Converter efficiency vs. output current (1.2V out)
Figure 4: Converter efficiency vs. output current (1.8V out)
Figure 5: Converter efficiency vs. output current (2.5V out)
Figure 6: Converter efficiency vs. output current (3.3V out)
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P3
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 5Vin, 0.6V/12A out.
Figure 8: Output ripple & noise at 5Vin, 1.2V/12A out.
(2us/div and 2mV/div)
(2us/div and 2mV/div)
Figure 9: Output ripple & noise at 5Vin, 1.8V/12A out.
Figure 10: Output ripple & noise at 5Vin, 3.3V/12A out.
(2us/div and 2mV/div)
(2us/div and 2mV/div)
Figure 11: Turn on delay time at 5Vin, 0.6V/12A out(2mS/div),Top
Figure 12: Turn on delay time at 5Vin, 1.2V/12A out(2mS/div),Top
trace:Vout 0.2V/div; bottom trace:Vin,5V/div
trace:Vout 0.5V/div; bottom trace:Vin,5V/div
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P4
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 13: Turn on delay time at 5Vin, 1.8V/12A out(2mS/div),Top
Figure 14: Turn on delay time at 5Vin, 3.3V/12A out(2mS/div),Top
trace:Vout 1V/div; bottom trace:Vin,5V/div
trace:Vout 2V/div; bottom trace:Vin,5V/div
Figure 15: Turn on delay time at remote on/off, 0.6V/12A
Figure 16: Turn on delay time at remote on/off, 3.3V/12A
out(1mS/div),Top trace:Vout 0.2V/div; bottom trace: on/off,2V/div
out(1mS/div),Top trace:Vout 2V/div; bottom trace: on/off,2V/div
Figure 17: Turn on delay time at remote turn on with external
Figure 18: Turn on delay time at remote turn on with external
capacitors (Co= 800 µF) 5Vin, 0.6V/12A out(4mS/div) , Top
capacitors (Co=800 µF) 5Vin, 3.3V/12A out(2mS/div) , Top
trace:Vout 0.2V/div; bottom trace:Vin,5V/div
trace:Vout 2V/div; bottom trace:Vin,5V/div
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P5
ELECTRICAL CHARACTERISTICS CURVES
Figure 19: Typical transient response to step load change at
Figure 20: Typical transient response to step load change at
2.5A/µS from 0% to 50% to 0% of Io, max at 5Vin, 0.6Vout
2.5A/µS from 0% to 50% to 0% of Io, max at 5Vin, 1.2Vout
(100uS/div) (Cout = 47uF ceramic).top trace:Vout,0.2V/div;bottom
(100uS/div) (Cout = 47uF ceramic).top
trace:Iout:5A/div.
trace:Vout,0.2V/div;bottom trace:Iout:5A/div.
Figure 21: Typical transient response to step load change at
Figure 22: Typical transient response to step load change at
2.5A/µS from 0% to 50% to 0% of Io, max at 5Vin, 1.8Vout
2.5A/µS from 0% to 50% to 0% of Io, max at 5Vin, 3.3Vout
(100uS/div) (Cout = 47uF ceramic).top trace:Vout,0.2V/div;bottom
(100uS/div) (Cout = 47uF ceramic).top
trace:Iout:5A/div.
trace:Vout,0.2V/div;bottom trace:Iout:5A/div.
Figure 23: Output short circuit current 5Vin, 3.3Vout(10mS/div)Top
Figure 24:Tracking at 5Vin, 3.3V/0A out(1mS/div), tracking
trace:Vout,0.5V/div;Bottom trace:Iout,20A/div
voltage=5V,top trace:Vseq,1V/div;bottom trace:Vout,1V/div
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P6
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 25: Input reflected-ripple 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.
COPPER STRIP
Vo
0.1uF SCOPE
10uF
ceramic ceramic
Resistive
Load
GND
Note: Use a 10µF tantalum and 1µF capacitor. Scope
measurement should be made using a BNC connector.
Figure 26: Peak-peak output noise and startup transient
measurement test setup.
CONTACT AND
DISTRIBUTION LOSSES
VI
Vo
II
Io
LOAD
SUPPLY
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 20A fuse in the ungrounded lead.
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.
GND
Over-Current Protection
CONTACT RESISTANCE
Figure 27: 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=(
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.
Vo × Io
) × 100 %
Vi × Ii
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P7
FEATURES DESCRIPTIONS
Remote Sense
Remote On/Off
The DCM 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 DCM series
power modules.
For negative 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 28).
Negative logic On/Off signal turns the module ON during
the logic low and turns the module OFF during the logic
high. When the negative On/Off function is not used, tie
the pin to GND (module will be On).
For positive logic module, the On/Off pin is pulled high
with an external pull-up 5kΩ resistor (see figure 29).
Positive logic On/Off signal turns the module ON during
logic high and turns the module OFF during logic low. If
the Positive On/Off function is not used, tie the pin to Vin.
(module will be On)
Distribution Losses
Distribution Losses
Vo
Vin
Sense
RL
GND
Distribution
L
Distribution
Figure 30: Effective circuit configuration for remote sense
operation
Output Voltage Programming
Vo
Vin
ION/OFF
On/Off
RL
Q1
GND
Figure 28: Negaitive remote On/Off implementation
On/Off
The output voltage of the DCM can be programmed to
any voltage between 0.6Vdc and 3.3Vdc by connecting
one resistor (shown as Rtrim in Figure 31) between the
TRIM and GND pins of the module. Without this external
resistor, the output voltage of the module is 0.6 Vdc. To
calculate the value of the resistor Rtrim for a particular
output voltage Vo, please use the following equation:
 1 .2 
Rtrim = 
 kΩ
Vo − 0.6 
For example, to program the output voltage of the DCM
module to 1.8Vdc, Rtrim is calculated as follows:
Vo
Vin
Rpullup
ION/OFF
The DCM 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 < 10Ω.
RL
 1 .2 
Rtrim = 
 kΩ = 1KΩ
1.8 − 0.6 
Q1
Vo
GND
RLoad
TRIM
Figure 29: Positive remote On/Off implementation
Rtrim
GND
Figure 31: Circuit configuration for programming output voltage
using an external resistor
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P8
FEATURES DESCRIPTIONS (CON.)
Table 1 provides Rtrim values required for some common
output voltages, By using a 0.5% tolerance trim resistor,
set point tolerance of ±1.5% can be achieved as specified
in the electrical specification.
Voltage Margining
Output voltage margining can be implemented in the DCM
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
Table 1
to the output pin for margining-down. Figure 33 shows the
0.6V
Open
1V
3K
1.2V
2K
1.5V
1.8V
1.333K
1K
2.5V
0.632K
3.3V
0.444K
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
Certain restrictions apply on the output voltage set point
Q1
depending on the input voltage. These are shown in the
Output Voltage vs. Input Voltage Set Point Area plot in
On/Off Trim
Rmargin-up
Figure 32. The Upper Limit curve shows that for output
voltages of 3.3V and lower, the input voltage must be
lower than the maximum of 5.5V. The Lower Limit curve
Rtrim
Q2
GND
shows that for output voltages of 1.8V and higher, the input
voltage needs to be larger than the minimum of 2.4V.
Figure 33: Circuit configuration for output voltage margining
Output Voltage Sequencing
The DCM 12V 12A 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.
When an analog voltage is applied to the SEQ pin, the
Figure 32: Output Voltage vs. Input Voltage Set Point Area plot
output voltage tracks this voltage until the output reaches
showing limits where the output voltage can be set for different
the set-point voltage. The final value of the SEQ voltage
input voltages.
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.
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P9
FEATURE DESCRIPTIONS (CON.)
This will result in the module sinking current if a pre-bias
For proper voltage sequencing, first, input voltage is
voltage is present at the output of the module.
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. 34)
according to the following equation
 24950 
R1 = 
Ω
Vin − 0.05 
The voltage at the sequencing pin will be 50mV when the
Figure 34: Circuit showing connection of the sequencing signal to
the SEQ pin.
sequencing signal is at zero.
After the 10msec delay, an analog voltage is applied to the
Simultaneous
SEQ pin and the output voltage of the module will track
this voltage on a one-to-one volt bases until the output
Simultaneous tracking (Figure 35) is implemented by
reaches the set-point voltage. To initiate simultaneous
using the TRACK pin. The objective is to minimize the
shutdown of the modules, the SEQ pin voltage is lowered
voltage difference between the power supply outputs
in a controlled manner. The output voltage of the modules
during power up and down.
tracks the voltages below their set-point voltages on a
one-to-one basis. A valid input voltage must be maintained
The simultaneous tracking can be accomplished by
until the tracking and output voltages reach ground
connecting VoPS1 to the TRACK pin of PS2. Please note
potential.
the voltage apply to TRACK pin needs to always higher
When using the EZ-SEQUENCETM feature to control
than the VoPS2 set point voltage.
start-up of the module, pre-bias immunity during startup is
disabled. The pre-bias immunity feature of the module
Vin
Vo PS1
relies on the module being in the diode-mode during
Vo PS2
TRA CK
start-up. When using the EZ-SEQUENCETM feature,
modules goes through an internal set-up time of 10msec,
PS2
PS1
Vin
O n/O ff
O n/O ff
and will be in synchronous rectification mode when the
voltage at the SEQ pin is applied.
Figure 35
Monotonic Start-up and Shutdown
The DCM 12A modules have monotonic start-up and
shutdown behavior for any combination of rated input
voltage, output current and operating temperature range.
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P10
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.
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.
Figure 37: Temperature measurement location
The allowed maximum hot spot temperature is defined at 107℃
Outpu t Cu rren t(A)
DCM04S0A0S12 Output Current v s. Ambient Temperat ure and Air Velocit y
@Vin = 5.0V, Vo=3.3V (Airflow From Pin8 To Pin10)
12
Natural
Convection
9
6
3
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.
0
25
30
35
40
45
50
55
60
65
MODULE
75
80
85
Ambient T empe rature (℃)
Figure 38: Output current vs. ambient temperature and air
[email protected]=5V, Vout=3.3V(Either Orientation)
Outpu t Cu rren t(A)
DCM04S0A0S12 Output Current v s. Ambient Temperat ure and Air Velocit y
@Vin = 3.3V, Vo=2.5V (Airflow From Pin8 To Pin10)
12
Natural
Convection
PWB
FANCING PWB
70
9
10 0L FM
6
AIR VELOCITY
AND AMBIENT
TEMPERATURE
SURED BELOW
THE MODULE
50.8(2.00")
3
AIR FLOW
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient T empe rature (℃)
Figure 39: Output current vs. ambient temperature and air
velocity@ Vin=3.3V, Vout=2.5V(Either Orientation)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 36: Wind tunnel test setup
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P11
THERMAL CURVES
Outpu t Cu rren t(A)
DCM04S0A0S12 Output Current v s. Ambient Temperat ure and Air Velocit y
@Vin = 3.3V, Vo=1.8V (Airflow From Pin8 To Pin10)
12
Natural
Convection
9
6
3
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient T empe rature (℃)
Figure 40: Output current vs. ambient temperature and air
[email protected]=3.3V, Vout=1.8V(Either Orientation)
Outpu t Cu rren t(A)
DCM04S0A0S12 Output Current v s. Ambient Temperat ure and Air Velocit y
@Vin = 3.3V, Vo=1.2V (Airflow From Pin8 To Pin10)
12
Nat ural
Convection
9
6
3
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient T empe rature (℃)
Figure 41: Output current vs. ambient temperature and air
[email protected]=3.3V, Vout=1.2V(Either Orientation)
Output Current(A)
DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity
@Vin = 3.3V, Vo=0.6V (Airflow From Pin8 To Pin10)
12
Natural
Convection
9
6
3
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 42: Output current vs. ambient temperature and air
[email protected]=3.3V, Vout=0.6V(Either Orientation)
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P12
PICK AND PLACE LOCATION
RECOMMENDED PAD LAYOUT
SURFACE-MOUNT TAPE & REEL
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P13
LEAD (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE
Temperature (°C )
250
200
150
Ramp-up temp.
0.5~3.0°C /sec.
2nd Ramp-up temp. Peak temp.
210~230°C 5sec.
1.0~3.0°C /sec.
Pre-heat temp.
140~180°C 60~120 sec.
Cooling down rate <3°C /sec.
100
Over 200°C
40~50sec.
50
0
60
120
Time ( sec. )
180
240
300
Note: The temperature refers to the pin of DCM, measured on the pin Vout joint.
LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE
Temp.
Peak Temp. 240 ~ 245 ℃
220℃
Ramp down
max. 4℃ /sec.
200℃
150℃
Preheat time
90~120 sec.
Time Limited 75 sec.
above 220℃
Ramp up
max. 3℃ /sec.
25℃
Time
Note: The temperature refers to the pin of DCM, measured on the pin Vout joint.
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P14
MECHANICAL DRAWING
DS_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P15
Part Numbering System
DCS
04
S
0A0
S
12
P
Product
Series
Input
Voltage
Numbers
of Outputs
Output
Voltage
Package
Type
Output
Current
On/Off
logic
DCS -3 , 6A
DCM - 12A
DCL - 20A
04 2.4~5.5V
12 –
4.5~14V
S - Single
0A0 S - SMD
Programmable
03.-3A
06 - 6A
12 - 12A
20 - 20A
N- negative
P- positive
F
A
Option Code
F- RoHS 6/6
(Lead Free)
A - Standard Function
MODEL LIST
Model Name
Packaging
Input Voltage
Output Voltage
Output Current
Efficiency
5.0Vin, 3.3Vdc @ 6A
DCS04S0A0S12PFA
SMD
2.4 ~ 5.5Vdc
0.6V~ 3.3Vdc
12A
95.0%
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
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 x6220
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_ DCM04S0A0S12PFA_03192012
E-mail: [email protected]
http://www.delta.com.tw/dcdc
P16