Datasheet - Delta Electronics

FEATURES
Š
High efficiency: 83.5% @5V/3A
Š
Industry standard 1x1 pinout
Š
Size: 27.9x24.4x8.7mm (1.10”x0.96”x0.34”)
Š
Fixed frequency operation
Š
4:1 ultra wide input voltage range
Š
Input UVLO
Š
Output OCP, OVP and OTP
Š
Monotonic startup into normal and pre-bias
loads
Š
Output voltage trim ±10%
Š
2250V isolation and basic insulation
Š
No minimum load required
Š
SMT and Through-hole versions
Š
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
Š
UL/cUL 60950-1 (US & Canada)
Recognized, and TUV (EN60950-1)
certified.
Š
CE mark meets 73/23/EEC and 93/68/EEC
directives
Delphi S36SE, 17W 1x1 Brick Series
DC/DC Power Modules: 18~75V in, 5V/3A out
OPTIONS
The Delphi S36SE series, 1x1 sized, 18~75Vin, single output,
isolated DC/DC converters are the latest offering from a world leader
in power systems technology and manufacturing  Delta Electronics,
Inc. This product family is available in either a surface mount or
through-hole package and provides up to 17 watts of power or 5A of
output current (3.3V and below) in a standard 1x1 form factor
(1.10”x0.96”x0.33”). 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 5V module could provide full output power
without any airflow up to 77°C ambient temperature while keeping the
component junction temperatures under most derating guidelines. All
modules are fully protected from abnormal input/output voltage,
current, and temperature conditions.
DATASHEET
DS_S36SE05003_07312008
Š
Positive, negative, or no On/Off
Š
OTP and Output OVP, OCP mode,
Auto-restart (default) or latch-up
Š
Surface mounted pins
APPLICATIONS
Š
Optical Transport
Š
Data Networking
Š
Communications, including Wireless
and traditional Telecom
Š
Servers
TECHNICAL SPECIFICATIONS
TA = 25°C, airflow rate = 300 LFM, Vin = 48 Vdc, nominal Vout unless otherwise noted.
PARAMETER
NOTES and CONDITIONS
S36SE05003 (Standard)
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
Start-Up Time, From Input
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
DS_S36SE05003_07312008
100ms
Refer to Figure 20 for measuring point
Typ.
-40
-55
18
16
15
0.5
17
16
1
100% Load, 18Vin
Max.
Units
80
100
127
125
2250
Vdc
Vdc
°C
°C
Vdc
75
Vdc
18
17
1.5
1.1
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
Io=Io, min to Io, max
Vin=18V 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
Output Voltage 10% Low
8
60
4.925
5.0
5.075
Vdc
±3
±3
±50
±10
±10
5.15
mV
mV
mV
V
3
130
mV
mV
A
%
4.85
80
20
0
110
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
120
200
200
300
16
16
Full load; 5% overshoot of Vout at startup
mV
mV
us
25
25
1000
83.5
83.0
%
%
2250
1000
Vdc
MΩ
pF
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;
Io=80% of Io, max; Ta=25°C, 300LFM
Refer to Figure 20 for measuring point
ms
ms
µF
-0.7
2
0.8
18
V
V
-0.7
2
0.8
18
V
V
mA
uA
%
V
0.25
30
10%
7.0
-10%
5.75
5.14
9.0
130
M hours
grams
°C
2
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.
1.4
INPUT CURRENT(A)
1.2
1
0.8
0.6
0.4
0.2
0
15
20
25
30
35
40
45
50
INPUT VOLTAGE(V)
55
60
65
70
75
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, 2V/div;
Bottom Trace: ON/OFF input, 5V/div.
Figure 5: (For negative remote on/off logic) Turn-on transient at
zero load current (5 ms/div). Vin=48V. Top Trace: Vout, 2V/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, 2V/div;
Bottom Trace: ON/OFF input, 5V/div.
DS_S36SE05003_07312008
3
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, 2V/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 (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 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 (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 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.
DS_S36SE05003_07312008
4
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 (50mA/div, 2us/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)
Copper Strip
Vo(+)
10u
SCOPE
1u
RESISTIVE
LOAD
Vo(-)
Figure 13: Output voltage noise and ripple measurement test setup
Figure 14: Output voltage ripple at nominal input voltage and rated load
current (Io=3A) (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
6.0
OUTPUT VOLTAGE (V)
5.0
4.0
3.0
2.0
1.0
0.0
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
LOAD CURRENT (A)
Figure 15: Output voltage vs. load current showing typical current
limit curves and converter shutdown points
DS_S36SE05003_07312008
5
DESIGN CONSIDERATIONS
Input Source Impedance
Test Result
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.
Test result is in compliance with CISPR 22 class B, which
is shown as below:
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. Below is the example of
using Delta latest FL75L07 A input filter tested with
S36SE series to meet class B in CISSPR 22.
Vin=48V, Po=15W, average mode
Schematic and Components List
Vin
C2
FL75L07 A
C1
S36SE
Series
C3
C1 is 22uF/100V, low ESR Aluminum cap;
C2 is 2.2uF ceramic cap;
C3 is 22nF ceramic capacitor;
FL75L07 A is Delta input EMI filter module.
DS_S36SE05003_07312008
Load
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,
CAN/CSA-C22.2 No. 60950-00 and EN60950: 2000 and
IEC60950-1999, 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:
6
Š
The input source must be insulated from the ac
mains by reinforced or double insulation.
Š
The input terminals of the module are not operator
accessible.
Š
If the metal baseplate is grounded, one Vi pin and
one Vo pin shall also be grounded.
Š
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.
DS_S36SE05003_07312008
7
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.
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.
ON/OFF
Vo(-)
Vi(-)
Trim
R
Load
Vi(+)
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.
DS_S36SE05003_07312008
8
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 (+)
Figure 17: Circuit configuration for trim-down (decrease
output voltage)
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 5V to the desired
Vo_adj is defined as:
Rtrim_down
( Vo_adj − 2.5 ) ⋅ 5110
5 − Vo_adj
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 5V to the desired Vo_adj is
defined as:
2.5⋅ 5110
Rtrim_up
− 2050
Vo_adj − 5
Ex. When Trim-up +10%
Vo_adj=5V×(1+10%)=5.5V
Rtrim_up
2.5 ⋅ 5110
5.5 − 5
− 2050
− 2050
4
Rtrim_up = 2.35 × 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=5V×(1-10%)=4.5V
Rtrim_down
( 4.5 − 2.5 ) ⋅ 5110
5 − 4.5
4
Rtrim_down = 1.839 × 10
− 2050
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
ohm
DS_S36SE05003_07312008
9
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 127℃.
3.5
Output Current(A)
S36SE05003(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 24V (Either Orientation)
3.0
Natural
Convection
2.5
PWB
FACING PWB
100LFM
2.0
MODULE
1.5
1.0
0.5
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
0.0
60
50.8 (2.0”)
AIR FLOW
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 19: Wind tunnel test setup
70
75
80
85
Ambient Temperature (℃)
Figure 21: Output current vs. ambient temperature and air
velocity@ Vin=24V (Either Orientation)
3.5
12.7 (0.5”)
65
Output Current(A)
S36SE05003(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation)
3.0
Natural
Convection
2.5
100LFM
2.0
1.5
1.0
0.5
0.0
60
65
70
75
80
85
Ambient Temperature (℃)
Figure 22: Output current vs. ambient temperature and air
velocity@ Vin=48V (Either Orientation)
DS_S36SE05003_07312008
10
PICK AND PLACE LOCATION
SURFACE-MOUNT TAPE & REEL
RECOMMENDED PAD LAYOUT (SMD)
DS_S36SE05003_07312008
11
LEADED (Sn/Pb) PROCESS RECOMMEND TEMPERATURE PROFILE
Temperature (°C )
250
200
150
Ramp-up temp.
0.5~3.0°C /sec.
2nd Ramp-up temp. Peak temp.
1.0~3.0°C /sec. 210~230°C 5sec.
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 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.
DS_S36SE05003_07312008
12
MECHANICAL DRAWING
Surface-mount module
Pin No.
1
2
3
4
5
6
Name
+Vin
-Vin
ON/OFF (Optional)
-Vout
TRIM (Optional)
+Vout
DS_S36SE05003_07312008
Through-hole module
Function
Positive input voltage
Negative input voltage
Remote ON/OFF (Optional)
Negative output voltage
Output voltage trim (Optional)
Positive output voltage
13
PART NUMBERING SYSTEM
S
36
S
E
050
Product
Type
Input Number of Product
Voltage Outputs
Series
S - Small
18V~75V
S - Single
1x1, 17W
03
Output Output
Voltage Current
050 - 5.0V
03 - 3A
N
R
ON/OFF Logic
Pin
Length/Type
N - Negative
Power
R - 0.170”
(Default)
(Default)
P - Positive
N - 0.145”
E - No remote
K - 0.110”
on/off
M - SMD
control
F
A
Option Code
F- RoHS 6/6 A - No trim pin
(Lead Free) B - With trim pin
(Default)
MODEL LIST
MODEL NAME
INPUT
OUTPUT
S36SE3R305NRFB
18V~75V
1.3A
3.3V
S36SE05003NRFB
18V~75V
1.1A
S36SE12001NRFB
18V~75V
1.1A
EFF @ 100% LOAD
5A
86.5%
5.0V
3A
83.5%
12V
1.3A
87.0%
Note:
1.
2.
3.
4.
Default remote on/off logic is negative;
Default pin length is 0.170”;
Default OTP and output OVP, OCP mode is auto-restart
For different options, please refer to part numbering system above or contact your local sales office.
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email: DCDC@delta-corp.com
Europe:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email: DCDC@delta-es.com
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
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_S36SE05003_07312008
14