FEATURES Efficiency up to 83% Industry standard form factor and pinout Case size: 32.3 x14.8 x10.2mm (1.27" x0.58" x0.40") Input: 12V, 24V, 48V (2:1) Output: 3.3, 5, 12, 15, 5, 12, 15V Low ripple and noise Short circuit protection 1500V isolation Mositure Sensitity Level (MSL) 2 UL 94V-0 Package Material ISO 9001 and ISO14001 certified manufacturing facility CSA 60950-1 Recognized Delphi DSIW1000 Series DC/DC Power Modules: 12, 24, 48Vin, 3W SMD The Delphi DSIW1000, 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 DSIW1000 series operate from 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. This series provides up to 3W of output power with 1500V isolation and a typical full-load efficiency up to 83%. 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. DATASHEET DS_DSIW1000_12032008 OPTIONS APPLICATIONS Industrial Transportation Process/ Automation Telecom Data Networking TECHNICAL SPECIFICATIONS TA = 25C, airflow rate = 0 LFM, nominal Vin, nominal Vout, resistive load unless otherwise noted. PARAMETER NOTES and CONDITIONS DSIW1000 (Standard) Min. ABSOLUTE MAXIMUM RATINGS Input Voltage Transient Transient Transient Internal Power Dissipation Operating Temperature Storage Temperature Humidity Lead Temperature in Assembly Input/Output Isolation Voltage INPUT CHARACTERISTICS Operating Input Voltage Turn-On Voltage Threshold Turn-Off Voltage Threshold Maximum Input Current No-Load Input Current Input Reflected Ripple Current Short Circuit Input Power Reverse Polarity Input Current OUTPUT CHARACTERISTICS Output Voltage Set Point Accuracy Output Voltage Balance Output Voltage Regulation Over Load Over Line Over Temperature Output Voltage Ripple and Noise Peak-to-Peak Peak-to-Peak, over line, load, temperature RMS Output Over Current/Power Protection Output Short Circuit Output Voltage Current Transient Step Change in Output Current Settling Time (within 1% Vout nominal) Maximum Output Capacitance EFFICIENCY 100% Load ISOLATION CHARACTERISTICS Isolation Voltage Isolation Voltage Test Isolation Resistance Isolation Capacitance FEATURE CHARACTERISTICS Switching Frequency GENERAL SPECIFICATIONS MTBF Weight Case Material Flammability Input Fuse 12V input model, 1000ms 24V input model, 1000ms 48V input model, 1000ms -0.7 -0.7 -0.7 Ambient Case -40 -40 -40 Typ. Max. Units 25 50 100 2500 85 100 125 95 260 Vdc Vdc Vdc mW C C C % C Vdc 18 36 75 8 18 36 8 16 32 Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc 1.5 0.5 mA mA mA mA mA mA W A 0.5 0.5 1.0 2.0 % % 0.3 0.1 0.01 1.0 0.3 0.02 % % %/C 50 75 100 10 mV mV mV % 2 200 6 500 4700 180 % uS F F 100 Vdc Vdc M pF 1.5mm from case for 10 seconds 1500 12V model 24V model 48V model 12V model 24V model 48V model 12V model 24V model 48V model Please see Model List table on page 6 12V model 24V model 48V model 12V model 24V model 48V model All models 9 18 36 4.5 8 16 ------- 20 5 3 25 15 10 Dual output models Io=10% to 100% Vin= min to max Tc=-40C to 100C 5Hz to 20MHz bandwidth Full Load, 0.47F ceramic Full Load, 0.47F ceramic Full Load, 0.47F ceramic Auto restart Continuous 12 24 48 6 12 24 ------- 120 25% step change Single output models Dual output models, each output Please see Model List table on page 6 Input to output, 60 Seconds Flash Test for 1 seconds 500VDC 100KHz, 1V MIL-HDBK-217F; Ta=25C, Ground Benign 1500 1650 1000 65 300 kHz 8.8 M hours grams 1 Non-conductive black plastic UL94V-0 12V model, 750mA slow blown typ 24V model, 350mA slow blown type 48V model, 200mA slow blown type 2 100 100 90 90 Efficiency (%) Efficiency (%) ELECTRICAL CHARACTERISTICS CURVES 80 70 60 50 80 70 60 Low Nom 50 High Low Nom Input Voltage (V) Figure 2: Efficiency vs. Input Voltages (Dual Output) 90 90 80 80 70 70 Efficiency (%) Efficiency (%) Figure 1: Efficiency vs. Input Voltage (Single Output) 60 50 60 50 40 40 30 30 20 10 20 40 60 High Input Voltage (V) 80 Load Current (%) Figure 3: Efficiency vs. Output Load (Single Output) 100 20 10 20 40 60 80 100 Load Current (%) Figure 4: Efficiency vs. Output Load (Dual Output) 3 Test Configurations Design & Feature Considerations Input Reflected-Ripple Current Test Setup The DSIW1000 circuit block diagrams are shown in Figures 5 and 6. To Oscilloscope + + Battery +Vin Lin DC / DC Converter Current Probe Cin +Out -Vin Load +Vin +Vo LC Filter -Out Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0 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. -Vo PFM -Vin Isolation Ref.Amp Figure 5: Block diagram of DSIW1000 single output modules. +Vin +Vo LC Filter Com. -Vo +Vin +Out Single Output DC / DC Converter -Vin Copper Strip Cout Resistive Scope Load PFM -Vin Isolation Ref.Amp -Out Figure 6: Block diagram of DSIW1000 dual output modules +Vin +Out Dual Output DC / DC Converter Com. -Vin -Out Copper Strip Cout Scope Cout Scope Input Source Impedance Resistive Load The power module should be connected to a low acimpedance input source. Highly inductive source impedances can affect the stability of the power module. + DC Power Source - +Vin + +Out DC / DC Converter Load Cin -Vin -Out 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 < 1.0 at 100 KHz) capacitor of a 3.3uF for the 12V input devices, and a 1.5uF for the 24V and 48V devices. 4 Design & Feature Considerations Maximum Capacitive Load Soldering and Cleaning Considerations 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. 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. 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. + +Vin +Out Single Output DC / DC Converter DC Power Source -Vin -Out + +Vin +Out Dual Output DC / DC Com. Converter DC Power Source - -Vin -Out 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. Cout - Notes: Load Cout Load 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. 5 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. THERMAL CURVES DSIW1000series Output Current vs. Ambient Temperature and Air Velocity (Either Orientation) 120% Output Power (%) 100% 80% Natural Convection 60% 40% 20% 0% 25 35 45 55 65 75 85 Ambient Temperature () Figure 8: Derating Curve 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. 6 MODEL LIST INPUT OUTPUT Full Load Efficiency MODEL NAME Vdc (V) Max (mA) Vdc (V) Max (mA) Min (mA) % DSIW1021 257 3.3 700 70 75 DSIW1022 316 5 600 60 79 305 12 250 25 82 305 15 200 20 82 DSIW1023 DSIW1024 12 (9 ~ 18) 321 5 300 30 78 DSIW1026 309 12 125 12.5 81 DSIW1027 309 DSIW1031 127 15 3.3 100 700 10 70 76 DSIW1032 156 5 600 60 80 DSIW1033 151 12 250 25 83 151 15 200 20 83 158 5 300 30 79 DSIW1036 152 12 125 12.5 82 DSIW1037 152 100 700 10 70 82 76 DSIW1025 DSIW1034 DSIW1035 24 (18 ~ 36) 81 DSIW1041 63 15 3.3 DSIW1042 78 5 600 60 80 75 12 250 25 83 75 15 200 20 83 DSIW1043 DSIW1044 48 (36 ~ 72) 79 5 300 30 79 DSIW1046 76 12 125 12.5 82 DSIW1047 76 15 100 10 82 DSIW1045 7 PACKAGE: TAPE & REEL 8 MECHANICAL DRAWING 1 10 11 12 2 3 2.54 [0.10"] 0.5 [0.02"] TOP VIEW 10.2 [0.40"] 0.5 [0.02"] 32.3 [1.27"] 18.8 [0.74"] 15 14 13 16.1 [0.63"] 24 23 22 14.8 [0.58"] 17.82 [0.70"] Pin 1 2 3 10 11 12 13 14 15 22 23 24 Single Output -Vin -Vin NC NC NC NC +Vout NC -Vout NC +Vin +Vin Dual Output -Vin -Vin NC Common NC -Vout +Vout NC Common NC +Vin +Vin 2.2 [0.09"] SIDE VIEW CONTACT: www.delta.com.tw/dcdc USA: Europe: Asia & the rest of world: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Phone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: DCDC@delta-es.com 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. 9