DELTA S36SE12002NRFB

FEATURES

High efficiency: 87% @12V/2A

Size: 27.9x24.4x8.7mm (1.10”x0.96”x0.34”)

Industry standard 1x1 pinout

Fixed frequency operation

36~75V input

Input UVLO

Output OCP, OVP and OTP

Monotonic startup into normal and pre-bias
loads

Output voltage trim ±10%

2250V isolation and basic insulation

No minimum load required

SMT and Through-hole versions

ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility

Delphi S36SE, 25W 1x1 Brick Series
DC/DC Power Modules: 36~75V in, 12V/2A out
UL/cUL 60950-1 (US & Canada) recognized
OPTIONS
The Delphi S36SE12002, 1x1 sized, 36~75Vin, single output, isolated

Positive, negative, or no On/Off
DC/DC converters are the latest offering from a world leader in power

OTP and Output OVP, OCP mode,
systems technology and manufacturing — Delta Electronics, Inc. This
product is available in either a surface mount or through-hole package
Auto-restart (default) or latch-up

Surface mounted pin
and provides up to 25 watts of power or 12V/2A in a standard 1x1 form
factor (1.10”x0.96”). The pinout is compatible with the popular industry
standard 1x2 sized products. 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. The S36SE
12V module provides full output power without any airflow at over 80C
APPLICATIONS
ambient
junction

Optical Transport
temperatures under most derating guidelines. Typical efficiency of

Data Networking
12V/2A module is better than 87% and all modules are fully protected

temperature
from abnormal
conditions.
while
input/output
DATASHEET
DS_S36SE12002PRFZ_10252013
keeping
voltage,
the
component
current,
and
Communications, including Wireless
and traditional Telecom
temperature

Servers
TECHNICAL SPECIFICATIONS
TA=25°C, airflow rate=300LFM, Vin=48Vdc, nominal Vout unless otherwise noted; full operating temperature range is -40°C to +85°C ambient
temperature with appropriate power derating.
PARAMETER
NOTES and CONDITIONS
S36SE12002PRFZ
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient(100ms)
Operating Temperature
Storage Temperature
Input/Output Isolation Voltage
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
Inrush Current (I2t)
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time (within 1% Vout nominal)
Turn-On Transient
Start-Up Time, From On/Off Control to 95%Vo
Start-Up Time, From Input to 95%Vo
Maximum Output Capacitance
EFFICIENCY
100% Load
60% Load
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Logic High (Module Off)
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Logic High (Module On)
ON/OFF Current (for both remote on/off logic)
Leakage Current (for both remote on/off logic)
Output Voltage Trim Range
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
Typ.
100ms
-40
-55
2250
Io=100% Load
Io=100% Load
Io=100% Load
Vin=36V, 100% Load
Vin=48V,Io=0A
Vin=48V
Max.
Units
80
100
85
125
Vdc
Vdc
°C
°C
Vdc
36
48
75
Vdc
32
30
1
33.5
31.5
2
35
33
3
0.8
Vdc
Vdc
Vdc
A
mA
mA
A2s
mA
dB
15
5
0.01
P-P thru 12µH inductor, 5Hz to 20MHz
120 Hz
Vin=48V, Io=Io.max, Tc=25°C
8
60
11.82
12.00
12.18
Vdc
±10
±10
11.64
±3
±3
±120
12.00
12.36
mV
mV
mV
V
80
20
150
35
2
2.8
mV
mV
A
A
200
200
600
400
400
mV
mV
us
Vin=48V, Io=100% Load
Vin=48V, Io=100% Load
Full load; 5% overshoot of Vout at startup
20
20
40
40
2000
ms
ms
µF
Vin=48V
Vin=48V
87
87
Io=Io, min to Io, max
Vin=36V to 75V
Tc=-40°C to 100°C
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
Vin=36V to 75V
Vin=48V, Output Voltage 10% Low
0
2.2
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
%
%
2250
1.0
Vdc
MΩ
kpF
450
kHz
10
Von/off
Von/off
Von/off
Von/off
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Across Trim Pin & +Vo or –Vo, Pout≦max rated
Over full temp range;
Vin48V; Io=80% of Io, max; Ta=25°C, 300LFM
Refer to Figure 20 for measuring point
-0.7
2
0.8
18
V
V
-0.7
2
0.8
18
V
V
mA
uA
V
V
0.25
30
13.2
17.0
10.8
13.8
7.96
9
133
M hours
grams
°C
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ELECTRICAL CHARACTERISTICS CURVES
4.0
90
87
36Vin
3.5
Power dissipation(W)
84
Efficiency (%)
81
48Vin
78
75Vin
36Vin
75
72
69
3.0
48Vin
75Vin
2.5
2.0
1.5
66
1.0
63
60
0.3
0.5
0.5
0.8
1.0
1.3
1.5
1.8
2.0
Output current(A)
0.3
0.5
0.8
1.0
1.3
1.5
1.8
2.0
Output current(A)
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.
0.9
Input Current (A)
0.8
0.7
0.6
0.5
0.4
0.3
25
30
35
40
45
50
55
60
65
70
75
Input Voltage (V)
Figure 3: Typical full load input characteristics at room
temperature.
Figure 4: (For negative remote on/off logic) Turn-on transient at
full rated load current (5 ms/div). Vin=48V. Top Trace: Vout, 5V/div;
Bottom Trace: ON/OFF input, 5V/div.
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Figure 5: (For negative remote on/off logic) Turn-on transient at
zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 5V/div,
Bottom Trace: ON/OFF input, 5V/div.
Figure 6: (For positive remote on/off logic) Turn-on transient at full
rated load current (5 ms/div). Vin=48V. Top Trace: Vout,5V/div;
Bottom Trace: ON/OFF input, 5V/div.
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: (For positive remote on/off logic)Turn-on transient at zero
load current (5 ms/div). Vin=48V. Top Trace: Vout, 5V/div; Bottom
Trace: ON/OFF input, 5V/div.
Figure 8: Output voltage response to step-change in load current
(75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum
capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div,
100us/div), Bottom Trace: Iout (0.5A/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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Figure 9: Output voltage response to step-change in load current
(50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF tantalum
capacitor and 1µF ceramic capacitor. Top Trace: Vout (100mV/div,
100us/div), Bottom Trace: Iout (0.5A/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 10: 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 below.
ELECTRICAL CHARACTERISTICS CURVES
Figure 11: Input Terminal Ripple Current, ic, at full rated output
current and nominal input voltage with 12µH source impedance
and 33µF electrolytic capacitor (20mA/div, 1us/div)
Figure 12: Input reflected ripple current, is, through a 12µH source
inductor at nominal input voltage and rated load current
(20 mA/div, 2us/div)
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Figure 13: Output voltage noise and ripple measurement test setup
Figure 14: Output voltage ripple at nominal input voltage and rated
load current (Io=2A)(50 mV/div, 5us/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
13
12
11
Output Voltage(V)
10
9
8
7
6
5
4
3
2
48vi n
1
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
Load Current (A)
Figure 15: Output voltage vs. load current showing typical current
limit curves and converter shutdown points
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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. An external input filter module is available for
easier EMC compliance design. Application notes to
assist designers in addressing these issues are pending
to release.
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,
CSA C22.2 NO. 60950-1 2nd and IEC 60950-1 2nd :
2005 and EN 60950-1 2nd: 2006+A11+A1: 2010, 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.

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.
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 5A 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
Remote On/Off
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.
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.
For hiccup mode, the module will try to restart after
shutdown. If the overload condition still exists, the
module will shut down again. This restart trial will
continue until the overload 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 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.
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.
ON/OFF
Vo(-)
Vi(-)
Trim
R
Load
Vi(+)
For hiccup mode, the module will try to restart after
shutdown. If the overload condition still exists, the
module will shut down again. This restart trial will
continue until the over-voltage condition is corrected.
Vo(+)
Figure 16: Remote on/off implementation
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 auto-restart mode, the module will monitor
temperature after shut down. Once the temperature is
within the specification, the module will be
auto-restarted.
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.
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FEATURES DESCRIPTIONS (CON.)
Output Voltage Adjustment
ON/OFF
To increase or decrease the output voltage set point,
the modules may be connected with an external
resistor between the TRIM pin and either the Vo(+) or
Vo(-). The TRIM pin should be left open if this feature
is not used.
Vo (-)
R
trim-up
Vi (-)
Trim
R
Load
Vi (+)
Vo (+)
ON/OFF
Vo (-)
Vi (-)
Trim
Figure 18: Circuit configuration for trim-up (increase output
voltage)
R
Load
R
trim-down
Vi (+)
Vo (+)
If the external resistor is connected between the TRIM
and Vo(-) the output voltage set point increases (Fig.
18). The external resistor value required to obtain an
output voltage change from 12V to the desired Vo_adj
is defined as:
2.5 10000
Figure 17: Circuit configuration for trim-down (decrease
output voltage)
Rtrim_up
If the external resistor is connected between the TRIM
and Vo(+) pins, the output voltage set point decreases
(Fig. 17). The external resistor value required to obtain
an output voltage change from 12V to the desired
Vo_adj is defined as:
Ex. When Trim-up +10%
Rtrim_down
( Vo_adj  2.5)  10000
12  Vo_adj
Vo_adj  12
 5110
Vo_adj=12V×(1+10%)=13.2V
R trim_up
2.5 10000
13.2  12
 5110
 5110
4
Rtri m_up  1.572  10 ohm
Ex. When Trim-down -10%
When using trim function, the output voltage of the
module is usually increased, which increases the power
output of the module with the same output current.
Vo_adj=12V×(1-10%)=10.8V
R trim_down
( 10.8  2.5)  10000
12  10.8
4
Rtri m_down  6.406  10 ohm
 5110
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
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THERMAL CONSIDERATIONS
Thermal Derating
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.
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.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
THERMAL CURVES
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’’).
Figure 20: Temperature measurement location
The allowed maximum hot spot temperature is defined at 123℃.
PWB
FACING PWB
Output Current(A)
MODULE
S36SE12002(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation)
2.0
Natural
Convection
1.8
1.6
1.4
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
1.2
1.0
50.8 (2.0”)
AIR FLOW
0.8
0.6
0.4
12.7 (0.5”)
0.2
0.0
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 19: Wind tunnel test setup
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 21: Output current vs. ambient temperature and air
velocity@ Vin =48V (Either Orientation)
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PICK AND PLACE LOCATION
SURFACE-MOUNT TAPE & REEL
RECOMMENDED PAD LAYOUT (SMD)
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LEADED (Sn/Pb) PROCESS RECOMMEND TEMPERATURE PROFILE
Note: The temperature refers to the pin of S36SE, measured on the pin +Vout joint.
LEAD FREE (SAC) PROCESS RECOMMEND TEMPERATURE PROFILE
Temp.
Peak Temp. 240 ~ 245 ℃
217℃
Ramp down
max. 4℃/sec.
200℃
150℃
Preheat time
100~140 sec.
Time Limited 90 sec.
above 217℃
Ramp up
max. 3℃/sec.
25℃
Time
Note: The temperature refers to the pin of S36SE, measured on the pin +Vout joint.
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MECHANICAL DRAWING
Surface-mount module
Pin No.
1
2
3
4
5
6
Name
+Vin
-Vin
ON/OFF
-Vout
TRIM
+Vout
Through-hole module
Function
Positive input voltage
Negative input voltage
Remote ON/OFF
Negative output voltage
Output voltage trim
Positive output voltage
Pin Specification:
Pins 1~6
1.00mm (0.040”) diameter
All pins are copper with Tin plating over Nickel under plating.
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PART NUMBERING SYSTEM
S
Product
Type
SSmall
Power
36
S
E
120
Input Number of Product Output
Voltage
Outputs
Series Voltage
3636~75Vin
S - Single
1x117W
series
120 - 12V
02
P
R
Output
Current
ON/OFF
Logic
Pin
Length/Type
02 - 2A
P - Positive
N - Negative
E - without
pin3
R - 0.170”
N - 0.145”
K - 0.110”
M - SMD
F
Z
Option Code
F- RoHS 6/6
A - without pin5
(Lead Free) B~Z - with pin5
MODEL LIST
MODEL NAME
S36SE12002PRFZ
INPUT
36V~75V
OUTPUT
0.8A
12V
EFF @ 100% LOAD
2A
87.0%
CONTACT: www.deltaww.com/dcdc
USA:
Telephone:
East Coast: 978-656-3993
West Coast: 510-668-5100
Fax: (978) 656 3964
Email: [email protected]
Europe:
Phone: +31-20-655-0967
Fax: +31-20-655-0999
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 any patent or patent rights of Delta. Delta reserves the right to revise these
specifications at any time, without notice.
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