FEATURES Efficiency up to 83% Industry standard form factor and pinout Body Size: 32.3 x14.8 x10.2mm (1.27" x0.58" x0.40") Input: 24V, 48V (4:1) Output: 3.3, 5, 12, 15, 5, 12, 15V Low ripple and noise 1500V isolation UL 94V-0 Package Material ISO 9001 and ISO14001 certified manufacturing facility Delphi DSIW200 Series DC/DC Power Modules: 24, 48Vin, 2~3W SMD The Delphi DSIW2000, 24V and 48V 4:1 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 DSIW2000 series operate from 24V or 48V (4:1) and provides 3.3V, 5V, 12V, or 15V of single output and 5V, 12V or 15V of dual output in an industrial standard, plastic case encapsulated SMD. 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_DSIW2000_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 DSIW2000 (Standard) Min. ABSOLUTE MAXIMUM RATINGS Input Voltage 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 ON/OFF Control Logic Low (module is off) Logic High (module is on) ON/OFF Current Leakage Current GENERAL SPECIFICATIONS MTBF Weight Case Material Flammability Input Fuse 24V input model, 1000ms 48V input model, 1000ms -0.7 -0.7 Ambient Case -40 -40 -40 Typ. 1.5mm from case for 10 seconds Max. Units 50 100 2500 85 100 125 95 260 Vdc Vdc mW C C C % C Vdc 1500 24V model 48V model 24V model 48V model 24V model 48V model Please see Model List table on page 6 24V model 48V model 24V model 48V model All models 18 36 4.5 8.5 ----- 36 75 8.5 17 8 16 Vdc Vdc Vdc Vdc Vdc 2 1 mA mA % % W A 0.5 0.5 1.0 2.0 % % 0.3 0.2 0.01 1 0.5 0.02 % % %/C 50 75 100 15 mV mV mV % 2 150 6 500 3000 180 % uS F F 500 Vdc Vdc M pF 20 10 10 5 Dual output models Io= min to max 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 24 48 6 12 ----- 120 25% step change single output model dual output model, each output Please see Model List table on page 6 Input to output, 60 Seconds Flash Test for 1 seconds 500VDC 100KHz, 1V 1500 1650 1000 350 300 Von/off at Ion/off=1.0mA Von/off at Ion/off=0.0 A Logic High, Von/off=max Ion/off at Von/off=0.0V MIL-HDBK-217F; Ta=25C, Ground Benign -0.7 2.5 kHz 0.8 5.5 5 -400 1 8.8 V V mA uA M hours grams Non-conductive black plastic UL94V-0 24V model, 1000mA slow blown type 48V model, 500mA slow blown type 2 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. Input Voltage (Single Output) Figure 3: Efficiency vs. Output Load (Single Output) Figure 2: Efficiency vs. Input Voltages (Dual Output) Figure 4: Efficiency vs. Output Load (Dual Output) 3 Design & Feature Considerations Test Configurations To Oscilloscope + + Battery +Vin Lin DC / DC Converter Current Probe Cin -Vin The DSIW2000 circuit block diagrams are shown in Figures 5 and 6. +Out Load -Out +Vin +Vo LC Filter -Vo Input Reflected-Ripple Current Test Setup 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. PFM -Vin Isolation Ref.Amp Figure 5: Block diagram of DSIW2000 single output modules. 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. +Vin +Vo LC Filter Com. -Vo PFM -Vin +Vin +Out Single Output DC / DC Converter -Vin Isolation Ref.Amp Copper Strip Cout Scope Resistive Load -Out Figure 6: Block diagram of DSIW2000 dual output modules Input Source Impedance +Vin +Out Dual Output DC / DC Converter Com. -Vin -Out Copper Strip Cout Scope Cout Scope 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 4.7uF for the 24V input devices, and a 2.2uF for the 48V devices. 4 Design & Feature Considerations Maximum Capacitive Load Overcurrent Protection The DSIW2000 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. 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. 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 DC Power Source - +Out Single Output DC / DC Converter -Vin Cout Load -Out 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: + +Vin Dual Output DC / DC Com. Converter DC Power Source - +Out -Vin -Out Cout Load 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. Remote On/Off The DSIW200 has positive remote on/off logic. Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low. Remote on/off can be controlled by an external switch between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent. ON/OFF Vo(-) Vi(-) Vi(+) Vo(+) 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 DSIW2000series 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 MODEL NAME Vdc (V) OUTPUT Full Load Efficiency Max (mA) Vdc (V) Max (mA) Min (mA) % DSIW2021 138 3.3 750 75 75 DSIW2022 158 5 600 60 79 154 12 250 25 81 154 15 200 20 81 DSIW2023 DSIW2024 24 (9 ~ 36) 160 5 300 30 78 DSIW2026 154 12 125 12.5 81 DSIW2027 154 DSIW2031 68 15 3.3 100 750 10 75 76 DSIW2032 78 5 600 60 80 DSIW2033 75 12 250 25 83 DSIW2025 DSIW2034 48 (18 ~ 75) 81 75 15 200 20 83 DSIW2035 78 5 300 30 80 DSIW2036 75 12 125 12.5 83 DSIW2037 75 15 100 10 83 7 PACKAGE: TAPE & REEL 8 MECHANICAL DRAWING 1 10 11 12 2 3 1.0 [0.04"] 18.8 [0.74"] 15 14 13 16.1 [0.63"] 24 23 22 14.8 [0.58"] 17.82 [0.70"] 2.54 [0.10"] TOP VIEW 10.2 [0.40"] 0.5 [0.02"] 32.3 [1.27"] Pin Single Output Dual Output 1 -Vin -Vin 2 3 10 11 12 13 14 15 22 23 24 -Vin On/Off NC NC NC +Vout NC -Vout NC +Vin +Vin -Vin On/Off Common NC -Vout +Vout NC Common NC +Vin +Vin 2.16 [0.085"] 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