V36SE12005
Datasheet E-mail: dcdc@deltaww.com
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FEATURES
High efficiency: 88% @ 12V/5A, 48Vin
Size: 33.0x22.8x8.7mm (1.30”x0.90”x0.34”)
Industry standard 1/16th brick size & pinout
Input UVLO
OTP and output OCP, OVP (default is
auto-recovery)
Output voltage trim: -20%, +10%
Monotonic startup into normal and pre-biased
loads
2250V isolation and basic insulation
No minimum load required
SMD and Through-hole versions
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada) Recognized
Delphi Series V36SE, 1/16th Brick
DC/DC Power Modules: 18~75Vin, up
to 60W
The Delphi Series V36SE, 1/16th Brick, 18~75V wide
input, single output, isolated DC/DC converter, is the
latest offering from a world leader in power systems
technology and manufacturing ― Delta Electronics, Inc.
This product family provides up to 60 watts of power in the
industry standard 1/16th brick form factor (1.30”x0.90”)
and pinout. 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. For the 12V output module, it
delivers 60W (5A) output with 18 to 75V input. Typical
efficiency of the 12V/5A module is greater than 88%. All
modules are protected from abnormal input/output
voltage, current, and temperature conditions. For lower
power needs, but in a similar small form factor, please
check out Delta S48SP (36W or 10A) and S36SE (17W or
5A) series standard DC/DC modules.
OPTIONS
SMD pins
Positive remote On/Off
OTP and output OVP, OCP mode
(Auto-restart or latch)
APPLICATIONS
Optical Transport
Data Networking
Communications
Servers
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TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
Note1: For applications with higher output capacitive load, please contact Delta
PARAMETER
V36SE12005(Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Vdc
Continuous
80
Vdc
Transient (100ms)
100
Vdc
Operating Temperature
-30
85
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
2250
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
18
48
75
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
16
17
18
Vdc
Turn-Off Voltage Threshold
15
16
17
Vdc
Lockout Hysteresis Voltage
0.5
1
1.8
Vdc
Maximum Input Current
4.3
A
No-Load Input Current
No-Load Input Current
35
mA
No-Load Input Current
20
mA
Off Converter Input Current
8
12
mA
Inrush Current (I2t)
1
A2s
Input Reflected-Ripple Current
10
mA
Input Voltage Ripple Rejection
50
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
11.88
12.00
12.12
Vdc
Output Voltage Regulation
Load Regulation
-20
5
mV
Line Regulation
±12
mV
Temperature Regulation
±120
mV
Total Output Voltage Range
11.64
12.00
12.36
V
Output Voltage Ripple and Noise
Peak-to-Peak
200
mV
RMS
60
mV
Peak-to-Peak
200
RMS
60
Operating Output Current Range
0
5
A
Output Over Current Protection
5.5
6
6.5
A
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
400
mV
Negative Step Change in Output Current
400
mV
Settling Time (within 1% Vout nominal)
500
µs
Turn-On Transient
Start-Up Time, From On/Off Control
20
30
50
ms
Start-Up Time, From Input
20
30
50
ms
Maximum Output Capacitance (note1)
2200
µF
EFFICIENCY
100% Load
83.5
%
100% Load
86.5
%
100% Load
88.5
%
100% Load
87.5
%
60% Load
88.0
%
ISOLATION CHARACTERISTICS
Input to Output
2250
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1000
pF
FEATURE CHARACTERISTICS
Switching Frequency
440
KHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
-0.7
0.8
V
Logic High (Module Off)
2
18
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
0.8
V
Logic High (Module On)
2
18
V
ON/OFF Current (for both remote on/off logic)
1
mA
Leakage Current (for both remote on/off logic)
50
µA
Output Voltage Trim Range
-20
10
%Vo,nom
Output Voltage Remote Sense Range
10
%Vo,nom
Output Over-Voltage Protection
14.4
18
V
GENERAL SPECIFICATIONS
MTBF
3.0
M hours
Weight
12.1
grams
Over-Temperature Shutdown
129
°C
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ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Efficiency vs. load current for minimum, nominal, and
maximum input voltage at 25°C
Figure 2: Power dissipation vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
Figure 3: Typical full load input characteristics at room
temperature
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ELECTRICAL CHARACTERISTICS CURVES
For Negative Remote On/Off Logic
Figure 4: Turn-on transient at full rated load current (resistive
load) (10 ms/div). Vin=48V. Top Trace: Vout, 3.0V/div; Bottom
Trace: ON/OFF input, 2V/div
Figure 5: Turn-on transient at zero load current (10 ms/div).
Vin=48V. Top Trace: Vout: 3.0V/div, Bottom Trace: ON/OFF
input, 2V/div
Figure 6: Output voltage response to step-change in load
current (25%-50% of Io, max; di/dt = 0.1A/µs; Vin is 48v). Load
cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top
Trace: Vout (200mV/div, 100us/div), Bottom Trace: Iout
(1A/div). Scope measurement should be made using a BNC
cable (length shorter than 20 inches). Position the load
between 51 mm to 76 mm (2 inches to 3 inches) from the
module
Figure 7: Output voltage response to step-change in load
current (50%-25% of Io, max; di/dt = 0.1A/µs; Vin is 48v). Load
cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top
Trace: Vout (200mV/div, 100us/div), Bottom Trace: Iout
(1A/div). Scope measurement should be made using a BNC
cable (length shorter than 20 inches). Position the load
between 51 mm to 76 mm (2 inches to 3 inches) from the
module
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ELECTRICAL CHARACTERISTICS CURVES
Figure 8: Test set-up diagram showing measurement points for
Input Terminal Ripple Current and Input Reflected Ripple
Current.
Note: Measured input reflected-ripple current with a simulated
source Inductance (LTEST) of 12 μH. Capacitor Cs offset
possible battery impedance. Measure current as shown above
Figure 9: Input Terminal Ripple Current, ic, at full rated output
current and nominal input voltage (Vin=48v) with 12µH source
impedance and 33µF electrolytic capacitor (200 mA/div,
1us/div)
Figure 10: Input reflected ripple current, is, through a 12µH
source inductor at nominal input voltage (vin=48v) and rated
load current (20 mA/div, 1us/div)
Figure 11: Output voltage noise and ripple measurement test
setup
Figure 12: Output voltage ripple at nominal input voltage
(vin=48v) and rated load current (Io=5A) (30 mV/div,
1us/div).Load capacitance: 1µF ceramic capacitor and 10µF
tantalum capacitor. Bandwidth: 20 MHz. Scope measurements
should be made using a BNC cable (length shorter than 20
inches). Position the load between 51 mm to 76 mm (2 inches
to 3 inches) from the module
Figure 13: Output voltage vs. load current showing typical
current limit curves and converter shutdown points (Vin=48v)
StripCopper
Vo(-)
Vo(+)
10u 1u SCOPE RESISTIVE
LOAD
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Peak Mode
Safety Considerations
The power module must be installed in compliance with
the spacing and separation requirements of the
end-user’s safety agency standard, i.e., UL60950-1,
CAN/CSA-C22.2, No. 60950-1 and EN60950-1+A11 and
IEC60950-1, if the system in which the power module is
to be used must meet safety agency requirements.
Basic insulation based on 75 Vdc input is provided
between the input and output of the module for the
purpose of applying insulation requirements when the
input to this DC-to-DC converter is identified as TNV-2 or
SELV. An additional evaluation is needed if the source
is other than TNV-2 or SELV.
When the input source is SELV circuit, the power module
meets SELV (safety extra-low voltage) requirements. If
the input source is a hazardous voltage which is greater
than 60 Vdc and less than or equal to 75 Vdc, for the
module’s output to meet SELV requirements, all of the
following must be met:
The input source must be insulated from the ac
mains by reinforced or double insulation.
The input terminals of the module are not operator
accessible.
If the metal baseplate is grounded, one Vi pin and
one Vo pin shall also be grounded.
A SELV reliability test is conducted on the system
where the module is used, in combination with the
module, to ensure that under a single fault,
hazardous voltage does not appear at the module’s
output.
DESIGN CONSIDERATIONS
Input Source Impedance
The impedance of the input source connecting to the
DC/DC power modules will interact with the modules and
affect the stability. A low ac-impedance input source is
recommended. If the source inductance is more than a
few μH, we advise adding a 10 to 100 μF electrolytic
capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to the
input of the module to improve the stability.
Layout and EMC Considerations
Delta’s DC/DC power modules are designed to operate in
a wide variety of systems and applications. For design
assistance with EMC compliance and related PWB layout
issues, please contact Delta’s technical support team.
Application notes to assist designers in addressing these
issues are pending release. Below is the reference design
for an input filter tested with V36SE12005XXXX to meet
class B in CISSPR 22.
Cin is 100uF low ESR Aluminum cap;
CX1 is 1uF ceramic cap;
CX2 is 4.7uF ceramic cap;
CY1 and CY2 are 4.7nF ceramic cap;
CY is 10nF ceramic cap;
L1 and L2 are common-mode inductors, L1=0.2mH
L2=0.5mH
Test Result: Vin=48V, Io=5A
.
Average Mode
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When installed into a Class II equipment (without
grounding), spacing consideration should be given to
the end-use installation, as the spacing between the
module and mounting surface have not been evaluated.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
This power module is not internally fused. To achieve
optimum safety and system protection, an input line fuse
is highly recommended. The safety agencies require a
normal-blow fuse with 10A maximum rating to be
installed in the ungrounded lead. A lower rated fuse can
be used based on the maximum inrush transient energy
and maximum input current.
Soldering and Cleaning Considerations
Post solder cleaning is usually the final board assembly
process before the board or system undergoes electrical
testing. Inadequate cleaning and/or drying may lower the
reliability of a power module and severely affect the
finished circuit board assembly test. Adequate cleaning
and/or drying is especially important for un-encapsulated
and/or open frame type power modules. For assistance
on appropriate soldering and cleaning procedures,
please contact Delta’s technical support team.
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FEATURES DESCRIPTIONS
Over-Current Protection
The modules include an internal output over-current
protection circuit, which will endure current limiting for an
unlimited duration during output overload. If the output
current exceeds the OCP set point, the modules will
automatically shut down, and enter hiccup mode or latch
mode, which is optional.
For hiccup mode, the module will try to restart after
shutdown. If the over current condition still exists, the
module will shut down again. This restart trial will continue
until the over-current condition is corrected.
For latch mode, the module will latch off once it shutdown.
The latch is reset by either cycling the input power or by
toggling the on/off signal for one second.
Over-Voltage Protection
The modules include an internal output over-voltage
protection circuit, which monitors the voltage on the output
terminals. If this voltage exceeds the over-voltage set point,
the module will shut down, and enter in hiccup mode or
latch mode, which is optional.
For hiccup mode, the module will try to restart after
shutdown. If the over voltage condition still exists, the
module will shut down again. This restart trial will continue
until the over-voltage condition is corrected.
For latch mode, the module will latch off once it shutdown.
The latch is reset by either cycling the input power or by
toggling the on/off signal for one second.
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, and enter in hiccup mode or latch
mode, which is optional.
For hiccup mode, the module will try to restart after
shutdown. If the over temperature condition still exists, the
module will shut down again. This restart trial will continue
until the over-temperature condition is corrected.
For latch mode, the module will latch off once it shutdown.
The latch is reset by either cycling the input power or by
toggling the on/off signal for one second.
Remote On/Off
The remote on/off feature on the module can be either
negative or positive logic. Negative logic turns the
module on during a logic low and off during a logic high.
Positive logic turns the modules on during a logic high
and off during a logic low.
Remote on/off can be controlled by an external switch
between the on/off terminal and the Vi(-) terminal. The
switch can be an open collector or open drain.
For negative logic if the remote on/off feature is not
used, please short the on/off pin to Vi(-). For positive
logic if the remote on/off feature is not used, please
leave the on/off pin floating.
Vo(+)Vi(+)
Vo(-)
Sense(-)
Sense(+)
Vi(-)
ON/OFF
Figure 14: Remote on/off implementation
Remote Sense
Remote sense compensates for voltage drops on the
output by sensing the actual output voltage at the point
of load. The voltage between the remote sense pins
and the output terminals must not exceed the output
voltage sense range given here:
[Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] ≤ 10% × Vout
This limit includes any increase in voltage due to
remote sense compensation and output voltage set
point adjustment (trim).
Vi(-)
Vi(+)
Vo(-)
Vo(+)
Sense(+)
Sense(-)
Resistance
Contact Contact and Distribution
Losses
Figure 15: Effective circuit configuration for remote sense
operation
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Figure 17: Circuit configuration for trim-up (increase output
voltage)
If the external resistor is connected between the TRIM
and SENSE (+) the output voltage set point increases
(Fig. 19). The external resistor value required to obtain
a percentage output voltage change △% is defined as:
KupRtrim 2.10
511
1.225 ) (100 Vo11.5
Ex. When Trim-up +10% (12V×1.1=13.2V)
KupRtrim 3.4892.10
10
511
10225.1 )10100(1211.5
The output voltage can be increased by both the remote
sense and the trim, however the maximum increase is
the larger of either the remote sense or the trim, not the
sum of both.
When using remote sense and trim, the output voltage
of the module is usually increased, which increases the
power output of the module with the same output
current.
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
FEATURES DESCRIPTIONS (CON.)
If the remote sense feature is not used to regulate the output
at the point of load, please connect SENSE(+) to Vo(+) and
SENSE(–) to Vo(–) at the module.
The output voltage can be increased by both the remote
sense and the trim; however, the maximum increase is the
larger of either the remote sense or the trim, not the sum of
both.
When using remote sense and trim, the output voltage
of the module is usually increased, which increases the
power output of the module with the same output
current.
Care should be taken to ensure that the maximum
output power does not exceed the maximum rated
power.
Output Voltage Adjustment (TRIM)
To increase or decrease the output voltage set point,
connect an external resistor between the TRIM pin and
either the SENSE(+) or SENSE(-). The TRIM pin
should be left open if this feature is not used.
Figure 16: Circuit configuration for trim-down (decrease
output voltage)
If the external resistor is connected between the TRIM
and SENSE (-) pins, the output voltage set point
decreases (Fig. 18). The external resistor value
required to obtain a percentage of output voltage
change △% is defined as:
KdownRtrim 2.10
511
Ex. When Trim-down -10% (12V×0.9=10.8V)
KKdownRtrim 9.402.10
10
511
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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 space between the neighboring PWB
and the top of the power module is constantly kept at
6.35mm (0.25’’).
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
12.7 (0.5”)
MODULE
AIR FLOW
50.8 (2.0”)
FACING PWB
PWB
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
Figure 18: Wind tunnel test setup
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.
THERMAL CURVES
Figure 19: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 122
℃
.
Figure 20: Output current vs. ambient temperature and air velocity
@ Vin=24V (Either Orientation)
Figure 21: Output current vs. ambient temperature and air velocity
@ Vin=48V (Either Orientation)
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PICK AND PLACE LOCATION RECOMMENDED PAD LAYOUT (SMD)
SURFACE-MOUNT TAPE & REEL
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LEADED (Sn/Pb) PROCESS RECOMMEND TEMPERATURE PROFILE
Note: The temperature refers to the pin of V36SE, measured on the pin +Vout joint.
LEAD FREE (SAC) PROCESS RECOMMEND TEMPERATURE PROFILE
Temp.
Time
150℃
200℃
100~140 sec.
Time Limited 90 sec.
above 217℃
217℃
Preheat time
Ramp up
max. 3℃/sec.
Ramp down
max. 4℃/sec.
Peak Temp. 240 ~ 245 ℃
25℃
Note: The temperature refers to the pin of V36SE, measured on the pin +Vout joint.
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MECHANICAL DRAWING
Through-hole module
Pin No.
Name
Function
1
2
3
4
5
6
7
8
+Vin
ON/OFF
-Vin
-Vout
-SENSE
TRIM
+SENSE
+Vout
Positive input voltage
Remote ON/OFF
Negative input voltage
Negative output voltage
Negative remote sense
Output voltage trim
Positive remote sense
Positive output voltage
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PART NUMBERING SYSTEM
V
36
S
E
120
05
N
R
F
A
Type of
Product
Input
Voltage
Number of
Outputs
Product
Series
Output
Voltage
Output
Current
ON/OFF
Logic
Pin
Length/Type
Option Code
V - 1/16
Brick
36 -
18V~75V
S - Single
E - Regular
120 - 12V
05 - 5A
N- Negative
P- Positive
K - 0.110”
M - SMD
N - 0.145"
R - 0.170”
Space - RoHS 5/6
F - RoHS 6/6
(Lead Free)
A-Standard
Functions
MODEL LIST
Default remote on/off logic is negative and pin length is 0.170”
CONTACT: www.deltaww.com/dcdc
Email: dcdc@deltaww.com
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
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
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.
MODEL NAME
INPUT
OUTPUT
EFF @ 100% LOAD
V36SE12005NRFA
18V~75V
4.8A
12V
5A
86.5% @ 24Vin, 88.5% @ 48Vin