Delphi DIW1000 Series DC/DC Power
Modules: 5, 12, 24, 48Vin, 2~3W DIP
The Delphi DIW1000, 5V, 12V, 24V, and 48V 2:1 wide input, single or
dual output, DIP form factor, isolated DC/DC converter is the latest
offering from a world leader in power systems technology and
manufacturing ― Delta Electronics, Inc. The DIW1000 series operate
from 5V, 12V, 24V, or 48V (2:1) and provides 3.3V, 5V, 12V, or 15V
of single output or ±5V, ±12V, or ±15V of dual output in an industrial
standard, plastic case encapsulated DIP package (body size: 1.25"x
0.80”x0.40”). This series provides up to 3W of output power with
1500V isolation and a typical full-load efficiency up to 84%. 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.
APPLICATIONS
Industrial
Transportation
Process/ Automation
Telecom
Data Networking
DATASHEET
DS_DIW1000_12162008
FEATURES
Efficiency up to 84%
Industry standard form factor and pinout
Size:
31.8 x20.3 x10.2mm (1.25” x0.80” x0.40”)
Input: 5V, 12V, 24V, 48V (2:1)
Output: 3.3, 5, 12, 15, ±5, ±12, ±15
Low ripple and noise
1500V isolation
UL 94V-0 Package Material
ISO 9001 and ISO14001 certified
manufacturing facility
UL 60950-1 Recognized
OPTIONS
2
TECHNICAL SPECIFICATIONS
TA = 25°C, airflow rate = 0 LFM, nominal Vin, nominal Vout, resistive load unless otherwise noted.
PARAMETER NOTES and CONDITIONS DIW1000 (Standard)
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Transient 5V input model, 1000ms -0.7 11 Vdc
Transient 12V input model, 1000ms -0.7 25 Vdc
Transient 24V input model, 1000ms -0.7 50 Vdc
Transient 48V input model, 1000ms -0.7 100 Vdc
Internal Power Dissipation 2500 mW
Operating Temperature Ambient -40 85 °C
Case -40 100 °C
Storage Temperature -40 125 °C
Humidity 95 %
Lead Temperature in Assembly 1.5mm from case for 10 seconds 260 °C
Input/Output Isolation Voltage 1500 Vdc
INPUT CHARACTERISTICS
Operating Input Voltage 5V model 4.5 5 9 Vdc
12V model 9 12 18 Vdc
24V model 18 24 36
48V model 36 48 75 Vdc
Turn-On Voltage Threshold 5V model 3.5 4 4.5 Vdc
12V model 4.5 7 9 Vdc
24V model 8 12 18 Vdc
48V model 16 24 36 Vdc
Turn-Off Voltage Threshold 5V model --- 3.5 4 Vdc
12V model --- 6.5 8.5 Vdc
24V model --- 11 17 Vdc
48V model --- 22 34 Vdc
Maximum Input Current Please see Model List table on page 6
No-Load Input Current 5V model 30 mA
12V model 12 mA
24V model 11 mA
48V model 7 mA
Input Reflected Ripple Current 5V model 100 %
12V model 25 %
24V model 15 %
48V model 10 %
Short Circuit Input Power All models 1 2 W
Reverse Polarity Input Current 1 A
OUTPUT CHARACTERISTICS
Output Voltage Set Point Accuracy ±0.5 ±1.0 %
Output Voltage Balance Dual output models ±0.5 ±2.0 %
Output Voltage Regulation
Over Load Io=10% to 100% ±0.2 ±0.5 %
Over Line Vin= min to max ±0.2 ±0.5 %
Over Temperature Tc=-40°C to 100°C ±0.01 ±0.02 %/C
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 0.47µF ceramic 45 60 mV
Peak-to-Peak, over line, load, temperature Full Load, 0.47µF ceramic 100 mV
RMS Full Load, 0.47µF ceramic 15 mV
Output Over Current/Power Protection Auto restart 120 %
Output Short Circuit Continuous
Output Voltage Current Transient
Step Change in Output Current 50% to 100% step change ±3 ±5 %
Settling Time (within 1% Vout nominal) 300 500 uS
Maximum Output Capacitance Single output models 4000 µF
Dual output models, each output 1000 µF
EFFICIENCY
100% Load Please see Model List table on page 6
ISOLAT ION CHARACTERISTICS
Isolation Voltage Input to output, 60 Seconds 1500 Vdc
Isolation Voltage Test Flash Test for 1 seconds 1650 Vdc
Isolation Resistance 500VDC 1000 MΩ
Isolation Capacitance 100KHz, 1V 65 100 pF
FEATURE CHARACTERISTICS
Switching Frequency 300 kHz
GENERAL SPECIFICATIONS
MTBF MIL-HDBK-217F; Ta=25°C, Ground Benign 1 M hours
Weight 12.4 grams
Case Material Non-conductive black plastic
Flammability UL94V-0
Input Fuse 5V model, 1500mA slow blown type
12V model, 700mA slow blown type
24V model, 350mA slow blown type
48V model, 135mA slow blown type
3
ELECTRICAL CHARACTERISTICS CURVES
Input Voltage (V)
50
60
70
80
90
100
Efficiency (%)
NomLow High
50
60
70
80
90
100
Efficiency (%)
Input Voltage (V)
NomLow High
Figure 1: Efficiency vs. Input Voltage (Single Output) Figure 2: Efficiency vs. Input Voltages (Dual Output)
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60402010 80
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60402010 80
Figure 3: Efficiency vs. Output Load (Single Output) Figure 4: Efficiency vs. Output Load (Dual Output)
4
Test Configurations
+Out
-Out
+Vin
-Vin
DC / DC
Converter Load
Battery
+ Lin+
Cin
To Oscilloscope
Current
Probe
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0Ω at 100 KHz) to
simulate source impedance. Capacitor Cin is to offset
possible battery impedance. Current ripple is measured at
the input terminals of the module and measurement
bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement
Scope measurement should be made by using a BNC
socket, measurement bandwidth is 0-20 MHz. Position the
load between 50 mm and 75 mm from the DC/DC
Converter. A Cout of 0.47uF ceramic capacitor is placed
between the terminals shown below.
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
Design & Feature Considerations
The DIW1000 circuit block diagrams are shown in
Figures 5 and 6.
PFM Isolation Ref.Amp
LC
Filter
+Vin
-Vin
-Vo
+Vo
Figure 5: Block diagram of DIW10 00 single output
modules.
+Vo
PFM Isolation Ref.Amp
LC
Filter
+Vin
-Vin
Com.
-Vo
Figure 6: Block diagram of DIW1000 dual output
modules
Input Source Impedance
The power module should be connected to a low ac-
impedance input source. Highly inductive source
impedances can affect the stability of the power module.
+
+Out
-Out
+Vin
-Vin
DC / DC
Converter Load
DC Power
Source
+
-
Cin
In applications where power is supplied over long lines
and output loading is high, it may be necessary to use a
capacitor at the input to ensure startup.
Capacitor mounted close to the input of the power
module helps ensure stability of the unit, it is
recommended to use a good quality low Equivalent
Series Resistance (ESR < 1.0Ω at 100 KHz) capacitor of
a 8.2uF for the 5V input devices, a 3.3uF for the 12V
input devices, and a 1.5uF for the 24V and 48V devices.
5
Design & Feature Considerations
Maximum Capacitive Load
The DIW1000 series has limitation of maximum
connected capacitance at the output. The power
module may be operated in current limiting mode
during start-up, affecting the ramp-up and the startup
time. For optimum performance we recommend
1000uF maximum capacitive load for dual outputs and
4000uF capacitive load for single outputs.
Output Ripple Reduction
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and
noise performance.
To reduce output ripple, it is recommended to use
3.3uF capacitors at the output.
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Single Output
DC / DC
Converter
+Out
-Out
+Vin
-Vin Load
DC Power
Source
+
-
Cout
Com.
Dual Output
DC / DC
Converter
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal current
limiting circuitry and can endure current limiting for an
unlimited duration. At the point of current-limit
inception, the unit shifts from voltage control to current
control. The unit operates normally once the output
current is brought back into its specified range.
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.
Notes:
1. These power converters require a minimum output load
to maintain specified regulation (please see page 6 for
the suggested minimum load). Operation under no-load
conditions will not damage these modules; however,
they may not meet all specifications listed above.
2. These DC/DC converters should be externally fused at
the front end for protection.
6
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 facing PWB and
PWB is constantly kept at 25.4mm (1’’).
Figure 7: 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
DIW1000series Output Current vs. Ambient Temperature and Air Velocity
(Either Orientation)
0%
20%
40%
60%
80%
100%
120%
25 35 45 55 65 75 85
Ambient Temperature (℃)
Output Power (%)
Natural
Convection
Figure 8: Derating Curve
7
MODEL LIST
INPUT OUTPUT Full Load
Efficiency
Vdc (V) Max (mA) Vdc (V) Max (mA) Min (mA) %
DIW1011 566 3.3 600 60 70
DIW1012 685 5 500 50 73
DIW1013 779 12 250 25 77
DIW1014 779 15 200 20 77
DIW1015 694
±5 ±250 ±25 72
DIW1016 800
±12 ±125 ±12.5 75
DIW1017 800
±15 ±100 ±10 75
DIW1021 223 3.3 600 60 74
DIW1022 267 5 500 50 78
DIW1023 305 12 250 25 82
DIW1024 305 15 200 20 82
DIW1025 271
±5 ±250 ±25 77
DIW1026 313
±12 ±125 ±12.5 80
DIW1027 313
±15 ±100 ±10 80
DIW1031 109 3.3 600 60 76
DIW1032 132 5 500 50 79
DIW1033 149 12 250 25 84
DIW1034 149 15 200 20 84
DIW1035 132
±5 ±250 ±25 79
DIW1036 152
±12 ±125 ±12.5 82
DIW1037 152
±15 ±100 ±10 82
DIW1041 55 3.3 600 60 76
DIW1042 66 5 500 50 79
DIW1043 75 12 250 25 84
DIW1044 75 15 200 20 84
DIW1045 65
±5 ±250 ±25 80
DIW1046 75
±12 ±125 ±12.5 84
DIW1047 75
±15 ±100 ±10 84
5
(4.5 ~ 9)
12
(9 ~ 18)
24
(18 ~ 36)
48
(36 ~ 72)
8
MECHANICAL DRAWING
31.8 [1.25"]
10.2 [0.40"]15.22 [0.60"]
20.3 [0.80"]
4.5 [0.18"]
3.8 [0.15"]
SIDE VIEW
23 9 11
23 22 16 14
BOTTOM VIEW
2.5 [0.10"]
0.5 [0.02"]
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 6220~6224
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.
Pin Single Output Dual Output
2 -Vin -Vin
3 -Vin -Vin
9 No Pin Common
11 NC -Vout
14 +Vout +Vout
16 -Vout Common
22 +Vin +Vin
23 +Vin +Vin
