DSDW1044 - Delta Electronics Inc.

Delphi DSDW1000 Series DC/DC Power

Modules: 5, 12, 24, 48Vin, 2W SMD

The Delphi DSDW1000, 5V, 12V, 24V, and 48V 2:1 wide input, single

or dual output, SMD form factor, isolated DC/DC converter is the

latest offering from a world leader in power systems technology and

manufacturing ― Delta Electronics, Inc. The DSDW1000 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 SMD package (body

size: 0.94"x 0.54”x0.31”). This series provides up to 2W of output

power with 1500V isolation and a typical full-load efficiency up to

81%. 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_DSDW1000_12032008

FEATURES

 Efficiency up to 81%

 Industry standard form factor and pinout

 Body size:

24.0 x13.7 x8mm (0.94” x0.54” x0.31”)

 Input: 5V, 12V, 24V, 48V (2:1)

 Output: 3.3, 5, 12, 15, ±5, ±12, ±15V

 Output OCP, SCP

 Low ripple and noise

 1500V isolation

 UL 94V-0 Package Material

 ISO 9001 and ISO14001 certified

manufacturing facility

 CSA 60950-1 Recognized

OPTIONS

TECHNICAL SPECIFICATIONS

TA = 25°C, airflow rate = 0 LFM, nominal Vin, nominal Vout, resistive load unless otherwise noted.

PARAMETER NOTES and CONDITIONS DSDW1000 (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 1800 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 Vdc

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 Vdc

No-Load Input Current 5V model 40 mA

12V model 20 mA

24V model 10 mA

48V model 8 mA

Input Reflected Ripple Current 5V model 100 %

12V model 25 %

24V model 15 %

48V model 10 %

Short Circuit Input Power All models 1.5 W

Reverse Polarity Input Current All models 1 A

OUTPUT CHARACTERISTICS

Output Voltage Set Point Accuracy ±1.0 ±2.0 %

Output Voltage Balance Dual output models ±1.0 ±2.0 %

Output Voltage Regulation

Over Load Io=25% to 100% ±0.5 ±0.75 %

Over Line Vin= Vin,min to Vin,max ±0.3 ±0.5 %

Over Temperature Tc=-40°C to 71°C ±0.01 ±0.02 %/C

Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 0.47µF ceramic 30 50 mV

Peak-to-Peak, over line, load, temperature Full Load, 0.47µF ceramic 75 mV

RMS Full Load, 0.47µF ceramic 15 mV

Output Short Circuit Continuous

Output Voltage Current Transient

Step Change in Output Current 25% step change ±3 ±5 %

Settling Time (within 1% Vout nominal) 100 300 uS

Maximum Output Capacitance 3.3Vo 2200 µF

5Vo 1000 µF

12Vo 170 µF

15Vo 110 µF

±5Vo, each output 470 µF

±12Vo, each output 100 µF

±15Vo, each output 47 µF

EFFICIENCY

100% Load Please see Model List table on page 6

ISOLATION C HARACTERIS TI CS

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 250 420 pF

FEATURE CHARACTERISTICS

Switching Frequency 300 kHz

GENERAL SPECIFICATIONS

MTBF MIL-HDBK-217F; Ta=25°C, Ground Benign 1 M hours

Weight 5.1 grams

Case Material Non-conductive black plastic

Flammability UL94V-0

Input Fuse 5V model, 1000mA slow blown type

12V model, 500mA slow blown type

24V model, 250mA slow blown type

48V model, 120mA slow blown type

ELECTRICAL CHARACTERISTICS CURVES

100

Efficiency (%)

Input Voltage (V)

NomLow High

100

Efficiency (%)

Input Voltage (V)

NomLow High

Figure 1: Efficiency vs. Input Voltage (Single Output) Figure 2: Efficiency vs. Input Voltage (Dual Output)

Load Current (%)

Efficiency (%)

100

60402010 80

Load Current (%)

Efficiency (%)

100

60402010 80

Figure 3: Efficiency vs. Output Load (Single Output) Figure 4: Efficiency vs. Output Load (Dual Output)

PFM Isolation Ref.Amp

Filter

+Vin

-Vin

-Vo

+Vo

PFM Isolation Ref.Amp

Filter

+Vin

-Vin

-Vo

Figure 5: Block diagram of DSDW1000 single output modules Figure 6: Block diagram of DSDW1000 dual output modules

Design & Feature Considerations

The DSDW1000 circuit block diagrams are shown in

Figures 5 and 6.

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

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.

Maximum Capacitive Load

The DSDW1000 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. The maximum

allowed capacitive load is listed in table on page 2.

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

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.

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

DSDW1000series Output Current vs. Ambient Temperature and Air Velocity

(Either Orientation)

20%

40%

60%

80%

100%

120%

25 35 45 55 65 75 85

Ambient Temperature (℃)

Output Power (%)

Natural

Convection

Figure 8: Derating Curves

MODEL LIST

INPUT OUTPUT Full Load

Efficiency

Vdc (V) Max (mA) Vdc (V) Max (mA) Min (mA) %

DSDW1011 471 3.3 500 125 70

DSDW1012 548 5 400 100 73

DSDW1013 534 12 167 42 75

DSDW1014 582 15 134 33 73

DSDW1015 667

±5 ±200 ±50 64

DSDW1016 615

±12 ±83 ±21 69

DSDW1017 598

±15 ±67 ±17 71

DSDW1021 184 3.3 500 125 73

DSDW1022 217 5 400 100 77

DSDW1023 209 12 167 42 80

DSDW1024 220 15 134 33 80

DSDW1025 242

±5 ±200 ±50 73

DSDW1026 224

±12 ±83 ±21 78

DSDW1027 226

±15 ±67 ±17 78

DSDW1031 96 3.3 500 125 72

DSDW1032 109 5 400 100 77

DSDW1033 109 12 167 42 80

DSDW1034 108 15 134 33 81

DSDW1035 119

±5 ±200 ±50 74

DSDW1036 112

±12 ±83 ±21 78

DSDW1037 110

±15 ±67 ±17 80

DSDW1041 49 3.3 500 125 71

DSDW1042 57 5 400 100 73

DSDW1043 53 12 167 42 79

DSDW1044 55 15 134 33 79

DSDW1045 62

±5 ±200 ±50 71

DSDW1046 57

±12 ±83 ±21 77

DSDW1047 57

±15 ±67 ±17 77

(4.5 ~ 9)

(9 ~ 18)

(18 ~ 36)

(36 ~ 75)

MODEL NAME

PACKAGE: TAPE & REEL

PIN# SINGLE DUAL

1 Vin(-) Vin(-)

7 NC NC

8 NC COMMON

9 Vout(+) Vout(+)

10 Vout(-) Vout(-)

16 Vin(+) Vin(+)

MECHANICAL DRAWING

TOP VIEW

SIDE VIEW

214

12.4 [0.48"]

0.6 [0.023"]

12.4 [0.48"]

2.0 [0.08"] 6.7 [0.26"]

8.7 [0.34"]

0.25 [0.01"]

2.57

[0.101"] 5.08

[0.200"]

9.3 [0.36"]

11.8 [0.46"]

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.