S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
FEATURES
Efficiency up to 89%
Wide input range, 9V-36V
Package with Industry Standard Pinout
Package Dimension:
25.4 x25.4 x10.2mm (1.0” x1.0” x0.40”)(No HSK)
Over voltage protection, hiccup mode
Over current protection, hiccup mode
Positive or Negative Remote ON/OFF
Without tantalum capacitor inside module
Operating Temperature range - 40°C to +85°C
Input to Output Isolation: 1600VDC
RoHS Compliant
2 Years Product Warranty
Heat-sink is option
UL60950, 2nd Edition, 2011-12-19 Recognized
EN50155 compliance for Week 1618 datecode
afterwards
The S24SE/S24DE family, the highest power density (30W), supplies industrial 1”X1” isolated power converter whose pinout follows
industry standard. The S24SE/S24DE series comes with a host of industry-standard features, such as over current protection, over voltage
protection, over temperature protection and remote on/off.
An optional heatsink is available for more extreme thermal requirements. All
models have an ultra-wide 4:1 input voltage range (9V to 36V). With operating temperature of -40°C to +85°C, it is suitable for customers’
critical applications, such as process control and automation, transportation, data communication and telecom equipment, test equipment,
medical device and everywhere where space on the PCB is critical.
Model List
Model
Input
Output
Number
Voltage
Voltage
(Range)
S24SE3R307
S24SE05006
S24SE12003
S24SE15002
S24DE12001
S24DE15001
Output Current
Max.
Min.
Input Current
Load
Maxcapacitive
(typ input voltage)
Regulation
Load
@Max. Load @No Load
Efficiency
(typ.)
@Max. Load
VDC
VDC
mA
mA
mA(typ.)
mA(typ.)
mV
uF
%
24
(9 ~ 36)
3.3V
5.0V
12V
15V
±12V
±15V
7500
6000
2500
2000
1250
1000
0
0
0
0
0
0
1170
1450
1450
1450
1450
1450
55
55
20
20
25
25
±10
±10
±12
±15
±120
±150
10000
10000
1000
1000
±1000
±680
88%
89%
88%
88%
88%
88%
Input Characteristics
Item
Input Surge Voltage (100 msec)
Input Turn-On Voltage Threshold
Input Turn-Off Voltage Threshold
Input Under-Voltage Lockout Hysteresis
Off-Converter Input Current
Input reflected ripple current
Reverse Polarity Input Current
ON/OFF Control, Logic High
ON/OFF Control, Logic Low
Input Filter
DS_S24SE/S24DE 30W_07152020
Model
All Models
All Models
All Models
All Models
All Models
All Models, with 12uH, 20MHz
All Models
All Models
All Models
All Models
Min.
Typ.
8
7
0.4
8.5
7.5
1
6
5
---
--2.4
-0.7
Max.
50
9
8
1.7
20
0.3
10
0.8
Internal PI Filter
Unit
VDC
VDC
VDC
VDC
mA
mA
A
VDC
VDC
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P1
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
Output Characteristics
Item
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Cross Regulation
Total Output Voltage Range
Ripple & Noise
Ripple & Noise
Dynamic load response
Output Over Current Protection
Short Output Protection
Output Over-Voltage Protection
Output Trim Range
Conditions
Dual Output, Balanced Loads
Single output
Dual output
Dual output, Asymmetrical Load
25%-100% Full Load
Over Load, Line and Temperature
12V, 15V, ±12V, ±15V
3.3V, 5.0V
50%-75% full load, 0.1A/uS
Output Voltage 10% Low, Hiccup
Long Term, Auto-recovery
Hiccup, Auto-recovery
Single Output
Min.
-----
-----
Typ.
±1.0
±1.0
±0.1
±0.1
Max.
±2.0
±2.0
±0.2
±0.5
Unit
%Vo
%Vo
%Vo
%Vo
±2
±3
%Vo
--50
50
3
±3
-----
110
160
%Vo
mV P-P
mV P-P
%Vo
%Io,max
115
-10
150
+10
%Vo
%Vo
General Characteristics
Item
Conditions
Min.
Typ.
Max.
Unit
I/O Isolation Voltage (rated)
---
---
1600
VDC
I/O Isolation Resistance
10
---
---
MΩ
I/O Isolation Capacitance
1100
pF
Switching Frequency
550
KHz
Environmental Specifications
Parameter
Conditions
Min.
Max.
Unit
Ambient
-40
+85
℃
Case Temperature(9Vin/24Vin/36Vin)
---
95/105/105
℃
Storage Temperature Range
-55
+125
℃
Humidity (non condensing)
---
95
% rel. H
Operating Temperature Range (with Derating)
NTC Shutdown temperature
Cooling
DS_S24SE/S24DE 30W_07152020
125
℃
Natural Convection
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P2
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
Thermal Derating Curves (No Heat Sink and With Heat Sink)
Notes
1
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
2
Ripple & Noise measurement bandwidth is 0-20MHz, with 10µF, tantalum capacitor and 1µF ceramic capacitor.
3
All DC/DC converters should be externally fused at the front end for protection.
4
Specifications are subject to change without notice.
DS_S24SE/S24DE 30W_07152020
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P3
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24SE3R307, 9-36VIN, 3.3V/7.5A
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (10ms/div).
Top Trace: Vout; 1V/div; Bottom Trace: ON/OFF input: 5V/div.
Power dissipation vs. load current at 25°C .
Turn-on transient at full load current (10 ms/div).
Top Trace: Vout; 1V/div; Bottom Trace: input voltage: 20V/div.
Output voltage ripple at nominal input voltage and max load
current (5 mV/div, 2us/div)
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P4
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24SE05006, 9-36VIN, 5.0V/6A
5.5
87
5.0
POWER DISSIPATION(W)
90
EFFICIENCY(%)
84
81
36Vin
78
24Vin
75
9Vin
72
69
66
9Vin
4.5
24Vin
4.0
3.5
36Vin
3.0
2.5
2.0
1.5
63
1.0
60
0.5
0.6
1.2
1.8
2.4
3
3.6
4.2
4.8
5.4
6
OUTPUT CURRENT(A)
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (10ms/div).
Top Trace: Vout; 2V/div; Bottom Trace: ON/OFF input: 5V/div.
0.6
1.2
1.8
2.4
3
3.6
4.2
4.8
5.4
6
OUTPUT CURRENT(A)
Power dissipation vs. load current at 25°C .
Turn-on transient at full load current (10 ms/div).
Top Trace: Vout; 2V/div; Bottom Trace: input voltage: 8V/div.
Output voltage ripple at nominal input voltage and max load
current (20 mV/div, 2us/div)
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P5
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24SE12003, 9-36VIN, 12V/2.5A
90
5.5
5.1
POWER DISSIPATION(W)
88
EFFICIENCY(%)
86
84
36Vin
24Vin
82
9Vin
80
78
4.7
36Vin
4.3
3.9
24Vin
3.5
3.1
9Vin
2.7
2.3
1.9
1.5
76
1.1
74
0.7
0.25
0.5
0.75
1
1.25 1.5 1.75
OUTPUT CURRENT(A)
2
2.25
2.5
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (4ms/div).
Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF input: 5V/div.
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
OUTPUT CURRENT(A)
Power dissipation vs. load current at 25°C .
Turn-on transient at full load current (4 ms/div).
Top Trace: Vout; 5V/div; Bottom Trace: input voltage: 8V/div.
Output voltage ripple at nominal input voltage and max load
current 10 mV/div, 2us/div)
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P6
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24SE15002, 9-36VIN, 15V/2A
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (4ms/div).
Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF input: 5V/div.
Power dissipation vs. load current at 25°C .
Turn-on transient at full load current (4 ms/div).
Top Trace: Vout; 5V/div; Bottom Trace: input voltage: 8V/div.
Output voltage ripple at nominal input voltage and max load
current 10 mV/div, 2us/div)
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P7
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24DE12001, 9-36VIN, ± 12V/1.25A
5.5
89
36Vin
5.0
POWER DISSIPATION(W)
87
EFFICIENCY(%)
85
83
36Vin
81
79
24Vin
9Vin
77
4.5
24Vin
4.0
3.5
3.0
9Vin
2.5
2.0
1.5
75
1.0
73
0.125 0.25 0.375
0.5
0.5
0.625 0.75 0.875
1
1.125 1.25
OUTPUT CURRENT(A)
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (4ms/div).
Top two Traces: Vout; 6V/div; Bottom Trace: ON/OFF input:
5V/div.
0.125 0.25 0.375
0.5
0.625 0.75 0.875
1
1.125 1.25
OUTPUT CURRENT(A)
Power dissipation vs. load current at 25°C.
Turn-on transient at full load current (4 ms/div).
Top two Traces: Vout; 6V/div; Bottom Trace: input voltage: 15V/div.
Output voltage ripple at nominal input voltage and max load
current Top trace +12V, 10 mV/div, Bottom trace -12V, 20mV/div,
2us/div.
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P8
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
ELECTRICAL CHARACTERISTICS CURVES - S24DE15001, 9-36VIN, ± 15V/1.0A
90
5.2
88
4.8
86
4.4
POWER DISSIPATION(W)
EFFICIENCY(%)
36Vin
84
82
36Vin
80
24Vin
78
9Vin
76
24Vin
4.0
3.6
3.2
9Vin
2.8
2.4
2.0
74
1.6
72
1.2
70
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
OUTPUT CURRENT(A)
Efficiency vs. load current for various input voltage at 25°C.
Turn-on transient at full load current (4ms/div).
Top two traces: Vout; 8V/div; Bottom Trace: ON/OFF input: 5V/div.
0.8
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
OUTPUT CURRENT(A)
Power dissipation vs. load current at 25°C.
Turn-on transient at full load current (4ms/div).
Top two traces: Vout; 8V/div; Bottom Trace: input voltage: 15V/div.
Output voltage ripple at nominal input voltage and max load
current Top trace +15V, 10 mV/div, Bottom trace -15V, 20mV/div,
2us/div.
Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor.
Bandwidth: 20 MHz.
DS_S24SE/S24DE 30W_07152020
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P9
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
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 a 47μF electrolytic capacitor
mounted close to the input of the module to improve the
stability.
Input Reflected Ripple Current
is
ic
Vin+
+
+
Input reflected ripple current, is, through a 12µH source
inductor at nominal input voltage and rated load current
(5 mA/div, 2us/div)
VinCs: 220uF
100uF,
ESR=0.2 ohm @
25oC 100KHz
Output Ripple Noise
Test set-up diagram showing measurement points for
Input Terminal Ripple Current and Input Reflected
Ripple Current.
Measured input reflected-ripple current with a simulated
source Inductance (LTEST) of 12 μH. Capacitor Cs
offset possible battery impedance.
Output voltage ripple test setup.
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.
Input Terminal Ripple Current, ic, at full rated output
current and nominal input voltage with 12µH source
impedance and 100µF electrolytic capacitor (100
mA/div, 2us/div).
DS_S24SE/S24DE 30W_07152020
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P10
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
DESIGN CONSIDERATIONS
Layout and EMI considerations
FEATURES DESCRIPTIONS
Over-Current Protection
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 reference
design for an input filter to pass EN55022 (VDE0878)
class A (both q. peak and average).
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 shut down (hiccup mode).
The modules 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.
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 modules will shut down,
and then restart after a hiccup-time (hiccup mode).
L1=1uH
C1=47uF/50V, electrolytic capacitor
dBμV
80.0
If latch mode is needed, please contact with Delta.
Limits
55022MAV
55022MQP
70.0
Over-Temperature Protection
60.0
50.0
40.0
Transducer
8130
Traces
PK+
AV
30.0
20.0
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.The module will
restart after the temperature is within specification.
10.0
Remote On/Off
0.0
150 kHz
1 MHz
10 MHz
30 MHz
Test Result:
At T = +25C, Typical input voltage and full load.
Green is quasi peak mode; Blue is average mode.
The remote on/off feature on the module can be
either negative or positive logic depend on the part
number options on the last page.
Recommended PCB Layout
For Negative logic version, turns the module on
during a external logic low and off during a logic
high. If the remote on/off feature is not used,
please short the on/off pin to Vi (-).
For Postive logic version, turns the modules on
during a external logic high and off during a logic
low. If the remote on/off feature is not used,
please leave the on/off pin to floating.
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.
It is suggested to use multiple layers PCB and large
size copper on system board which connects to pins of
module, that can achieve better thermal performance.
DS_S24SE/S24DE 30W_07152020
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P11
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
For 12V signle output (Kohm):
Remote on/off implementation
For 15V single output (Kohm):
Output Voltage Adjustment (TRIM)
Only single output modules have output adjust
function.
To increase the output voltage set point, connect an
external resistor between the TRIM pin and the
Vout(-).
To decrease the output voltage set point, connect an
external resistor between the TRIM pin and the
Vout(+).
The maximum adjust range is ±10%, the TRIM pin
should be left open if this feature is not used.
For 3.3V single output (Kohm):
For example:
When need trim up to 3.4V, then the external resistor
should be 100Kohm between trim pin and Vout- pin.
When need trim down to 3.1V, then the external resistor
should be 40Kohm between trim pin and Vout+ pin.
THERMAL CONSIDERATIONS
For 5V single output (Kohm):
DS_S24SE/S24DE 30W_07152020
Thermal de-rating curve is a standard for customer to
make thermal evaluation and make sure the module’s
components are operated under allowed temperature.
The module’s cooling condition is natural convection. In
thermal de-rating curve, if we know the module’s input
voltage and output power we can find the allowed
maximum ambient temperature.
The module’s case temperature is a reference to
make thermal evaluation. If the case temperature
exceed the allowed maximum value, the moldule may
probably have thermal issue.
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P12
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
Mechanical Drawing
Mechanical Dimensions
Pin Connections
Single Output
Pin
Function
Dual Output
Function
1
Vin+
Vin+
2
Vin-
Vin-
3
On/off
On/off
4
Vout-
Vout-
5
Trim
Common
6
Vout+
Vout+
Physical outline
Case Size: 25.4*25.4*9.5(1.0”*1.0”*0.38”)
Case material: Al alloy, anodize black
Baseplate material: Non-conductive FR-4
Pin material: Brass; finish: Matte Tin plating and
Nickel under plating
Pin length: refer part numbering system
Weight: 18.0 grams
All dimensions in mm (inches)
Tolerance: X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.010)
Pins Diameter : ±0.10(±0.004)
Mechanical Drawing with heat sink(optional)
Mechanical Dimensions
Physical Outline
1
Heat sink
Material: Al-6063
Finish: anodize black
Weight: 4.0grams
2
Model weight: 22.2 grams
All dimensions in mm (inches)
Tolerance: X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.010)
Note:
1.
add heat sink to help heat dissipation and increase reliability of convert operating at high ambient temperature
2.
please refer derating curve while upgrate the operating temperature of converter
DS_S24SE/S24DE 30W_07152020
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P13
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
Application notice:
For modules with through-hole pins, they are intended for wave soldering assembly onto system boards;
please do not subject such modules through reflow temperature profile.
Recommended layout refer below
DS_S24SE/S24DE 30W_07152020
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P14
S24SE/S24DE series
30W Single/Dual Output DC/DC Converter
Part Numbering System
S
24
S
E
050
06
N
Form
Input
Number
Product
Output
Output
On/off
factor
voltage
of output
series
voltage
current
logic
S
24 - 9~36V
S - Single
E - Series
050 - 5.0V
06 - 6A
D - Dual
No.
N-
D
F
Pin length
D - 0.24”
Negative
P - Positive
T - 0.22”
R - 0.17”
A
Option Code
F - RoHS 6/6
A - Standard.
(Lead Free)
(with metal
case)
H - With heat
sink
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:
Phone: +31-20-655-0967
Fax: +31-20-655-0999
Asia & the rest of world:
Telephone: +886 3 4526107
ext 6220~6226
Fax: +886 3 4513485
WARRANTY
Delta offers a two (2) years 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_S24SE/S24DE 30W_07152020
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P15