DCM04S0A0S12PFA FEATURES High efficiency: 95% @ 5.0Vin, 3.3V/12A out Small size and low profile: 20.3x 11.4x 8.5mm (0.8”x 0.45”x 0.33”) Surface mount packaging Standard footprint Voltage and resistor-based trim Pre-bias startup Output voltage tracking No minimum load required Output voltage programmable from 0.6Vdc to 3.3Vdc via external resistor Fixed frequency operation Input UVLO, output OCP Remote on/off ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada) Delphi DCM, Non-Isolated Point of Load DC/DC Power Modules: 2.4-5.5Vin, 0.6-3.3V/12Aout The Delphi Series DCM, 2.4-5.5V input, single output, OPTIONS Negative on/off logic Tracking feature non-isolated Point of Load DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing -- Delta Electronics, Inc. The DCM series provides a programmable output voltage from 0.6V to 3.3V using an external resistor and has flexible and programmable tracking features to enable a variety of startup voltages as well as tracking between power modules. This product family is available in surface mount and provides up to 12A of output current in an industry APPLICATIONS standard footprint. With creative design technology and Telecom / DataCom optimization of component placement, these converters Distributed power architectures possess outstanding electrical and thermal performance, as Servers and workstations well as extremely high reliability under highly stressful LAN / WAN applications operating conditions. Data processing applications DS_ DCM04S0A0S12PFA _10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P1 TECHNICAL SPECIFICATIONS PARAMETER NOTES and CONDITIONS DCM04S0A0S12PFA Min. ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Tracking Voltage Operating Ambient Temperature Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Maximum Input Current No-Load Input Current Off Converter Input Current Inrush Transient Input Reflected Ripple Current, peak-to-peak Input Ripple Rejection (120Hz) OUTPUT CHARACTERISTICS Output Voltage Set Point Vo ≦ Vin –0.6 Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Output Current Range Output Voltage Over-shoot at Start-up Output DC Current-Limit Inception Output Short-Circuit Current (Hiccup Mode) DYNAMIC CHARACTERISTICS Dynamic Load Response Positive Step Change in Output Current Negative Step Change in Output Current Time to 10% of Peak Deviation Settling Turn-On Transient Start-Up Time, From On/Off Control Start-Up Time, From Input Output Voltage Rise Time Output Capacitive Load EFFICIENCY Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V Vo=1.2V Vo=0.6V FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control, (Negative logic) Logic Low Voltage Logic High Voltage Logic Low Current Logic High Current ON/OFF Control, (Positive Logic) Logic High Voltage Logic Low Voltage Logic Low Current Logic High Current Tracking Slew Rate Capability Tracking Delay Time Tracking Accuracy GENERAL SPECIFICATIONS MTBF Weight Max. Units -0.3 -0.3 -40 -55 6 Vin,max 85 125 Vdc Vdc ℃ °C 2.4 5.5 V 2.2 2.0 Vin=2.4V to 5.5V, Io=Io,max Vin=5V Vin=5V V V A mA mA A2S 11 50 5 1 (5Hz to 20MHz, 1μH source impedance; VIN =0 to 5.5V, Io= Iomax ; with 0.5% tolerance for external resistor used to set output voltage) Output Voltage Adjustable Range Output Voltage Regulation Over Line Typ. For Vo>=2.5V For Vo<2.5V For Vo>=2.5V For Vo<2.5V Ta=-40℃ to 85℃ Over sample load, line and temperature 5Hz to 20MHz bandwidth Full Load, 0.1µF ceramic, 10µF ceramic Full Load, 0.1µF ceramic, 10µF ceramic -1.5 49 mAp-p -30 dB +1.5 % Vo,set 0.6 Vo,set 3.3 V -3.0 0.4 10 15 10 0.4 +3.0 % Vo,set mV mV mV % Vo,set % Vo,set 35 15 12 3 250 2.4 mV mV A % Vo,set % Iomax Adc 200 200 20 mV mV µs 3 3 3 ms ms ms µF 25 10 0 Vout=3.3V Hiccup mode Io,s/c 10µF Ceramic & 0.1µF Ceramic load cap, 2.5A/µs,Co=47u,Vin=5V,Vo=1.8V 0-50% Iomax 50% Iomax-0 Io=Io.max Von/off, Vo=10% of Vo,set Vin=Vin,min, Vo=10% of Vo,set Time for Vo to rise from 10% to 90% of Vo,set Full load; ESR ≧0.15mΩ 47 Vin=5V, 100% Load Vin=5V, 100% Load Vin=5V, 100% Load Vin=5V, 100% Load Vin=5V, 100% Load Vin=5V, 100% Load 5 800 95.0 94.0 91.5 90.0 89.0 81.0 % % % % % % 600 kHz Module On, Von/off Module Off, Von/off Module On, Ion/off Module Off, Ion/off -0.2 Vin-0.8 Vin-1.6 Vin,max 200 1 V V µA mA Module On, Von/off Module Off, Von/off Module On, Ion/off Module Off, Ion/off 1.6 -0.3 Vin,max 0.3 1 10 2 V V mA µA V/msec ms mV mV Delay from Vin.min to application of tracking voltage Power-up 2V/mS Power-down 1V/mS Io=80% of Io, max; Ta=25°C 0.1 10 100 100 1 4.8 M hours grams (TA = 25°C, airflow rate = 300 LFM, Vin =2.4Vdc to 5.5Vdc, nominal Vout unless otherwise noted.) DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P2 ELECTRICAL CHARACTERISTICS CURVES Figure 1: Converter efficiency vs. output current (0.6V out) Figure 2: Converter efficiency vs. output current (1.0V out) Figure 3: Converter efficiency vs. output current (1.2V out) Figure 4: Converter efficiency vs. output current (1.8V out) Figure 5: Converter efficiency vs. output current (2.5V out) Figure 6: Converter efficiency vs. output current (3.3V out) DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P3 ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: Output ripple & noise at 5Vin, 0.6V/12A out. Figure 8: Output ripple & noise at 5Vin, 1.2V/12A out. (2us/div and 2mV/div) (2us/div and 2mV/div) Figure 9: Output ripple & noise at 5Vin, 1.8V/12A out. Figure 10: Output ripple & noise at 5Vin, 3.3V/12A out. (2us/div and 2mV/div) (2us/div and 2mV/div) Figure 11: Turn on delay time at 5Vin, 0.6V/12A out(2mS/div),Top Figure 12: Turn on delay time at 5Vin, 1.2V/12A out(2mS/div),Top trace:Vout 0.2V/div; bottom trace:Vin,5V/div trace:Vout 0.5V/div; bottom trace:Vin,5V/div DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P4 ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 13: Turn on delay time at 5Vin, 1.8V/12A out(2mS/div),Top Figure 14: Turn on delay time at 5Vin, 3.3V/12A out(2mS/div),Top trace:Vout 1V/div; bottom trace:Vin,5V/div trace:Vout 2V/div; bottom trace:Vin,5V/div Figure 15: Turn on delay time at remote on/off, 0.6V/12A Figure 16: Turn on delay time at remote on/off, 3.3V/12A out(1mS/div),Top trace:Vout 0.2V/div; bottom trace: on/off,2V/div out(1mS/div),Top trace:Vout 2V/div; bottom trace: on/off,2V/div Figure 17: Turn on delay time at remote turn on with external Figure 18: Turn on delay time at remote turn on with external capacitors (Co= 800 µF) 5Vin, 0.6V/12A out(4mS/div) ， Top capacitors (Co=800 µF) 5Vin, 3.3V/12A out(2mS/div) ， Top trace:Vout 0.2V/div; bottom trace:Vin,5V/div trace:Vout 2V/div; bottom trace:Vin,5V/div DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P5 ELECTRICAL CHARACTERISTICS CURVES Figure 19: Typical transient response to step load change at Figure 20: Typical transient response to step load change at 2.5A/μS from 0% to 50% to 0% of Io, max at 5Vin, 0.6Vout 2.5A/μS from 0% to 50% to 0% of Io, max at 5Vin, 1.2Vout (100uS/div) (Cout = 47uF ceramic).top trace:Vout,0.2V/div;bottom (100uS/div) (Cout = 47uF ceramic).top trace:Iout:5A/div. trace:Vout,0.2V/div;bottom trace:Iout:5A/div. Figure 21: Typical transient response to step load change at Figure 22: Typical transient response to step load change at 2.5A/μS from 0% to 50% to 0% of Io, max at 5Vin, 1.8Vout 2.5A/μS from 0% to 50% to 0% of Io, max at 5Vin, 3.3Vout (100uS/div) (Cout = 47uF ceramic).top trace:Vout,0.2V/div;bottom (100uS/div) (Cout = 47uF ceramic).top trace:Iout:5A/div. trace:Vout,0.2V/div;bottom trace:Iout:5A/div. Figure 23: Output short circuit current 5Vin, 3.3Vout（10mS/div）Top Figure 24:Tracking at 5Vin, 3.3V/0A out(1mS/div), tracking trace:Vout,0.5V/div;Bottom trace:Iout,20A/div voltage=5V,top trace:Vseq,1V/div;bottom trace:Vout,1V/div DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P6 TEST CONFIGURATIONS DESIGN CONSIDERATIONS Input Source Impedance To maintain low noise and ripple at the input voltage, it is critical to use low ESR capacitors at the input to the module. A highly inductive source can affect the stability of the module. An input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module. Safety Considerations Figure 25: Input reflected-ripple test setup For safety-agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards. COPPER STRIP Vo 0.1uF SCOPE 10uF ceramic ceramic Resistive Load GND Note: Use a 10μF tantalum and 1μF capacitor. Scope measurement should be made using a BNC connector. Figure 26: Peak-peak output noise and startup transient measurement test setup. CONTACT AND DISTRIBUTION LOSSES VI Vo II Io LOAD SUPPLY For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with a maximum 20A fuse in the ungrounded lead. Input Under voltage Lockout At input voltages below the input under voltage lockout limit, the module operation is disabled. The module will begin to operate at an input voltage above the under voltage lockout turn-on threshold. GND Over-Current Protection CONTACT RESISTANCE Figure 27: Output voltage and efficiency measurement test setup To provide protection in an output over load fault condition, the unit is equipped with internal over-current protection. When the over-current protection is triggered, the unit enters hiccup mode. The units operate normally once the fault condition is removed. Note: All measurements are taken at the module terminals. When the module is not soldered (via socket), place Kelvin connections at module terminals to avoid measurement errors due to contact resistance. ( Vo Io ) 100 % Vi Ii DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P7 FEATURES DESCRIPTIONS Remote Sense Remote On/Off The DCM series power modules have an On/Off pin for remote On/Off operation. Both positive and negative On/Off logic options are available in the DCM series power modules. For negative logic module, connect an open collector (NPN) transistor or open drain (N channel) MOSFET between the On/Off pin and the GND pin (see figure 28). Negative logic On/Off signal turns the module ON during the logic low and turns the module OFF during the logic high. When the negative On/Off function is not used, tie the pin to GND (module will be On). For positive logic module, the On/Off pin is pulled high with an external pull-up 5kΩ resistor (see figure 29). Positive logic On/Off signal turns the module ON during logic high and turns the module OFF during logic low. If the Positive On/Off function is not used, tie the pin to Vin. (module will be On) Distribution Losses Distribution Losses Vo Vin Sense RL GND Distribution Losses Distribution Losses Figure 30: Effective circuit configuration for remote sense operation Output Voltage Programming Vo V in I O N /O F F O n/O ff RL Q1 GND Figure 28: Negaitive remote On/Off implementation O n/O ff The output voltage of the DCM can be programmed to any voltage between 0.6Vdc and 3.3Vdc by connecting one resistor (shown as Rtrim in Figure 31) between the TRIM and GND pins of the module. Without this external resistor, the output voltage of the module is 0.6 Vdc. To calculate the value of the resistor Rtrim for a particular output voltage Vo, please use the following equation: 1.2 Rtrim k Vo 0.6 For example, to program the output voltage of the DCM module to 1.8Vdc, Rtrim is calculated as follows: Vo V in R pullup I O N /O FF The DCM provide Vo remote sensing to achieve proper regulation at the load points and reduce effects of distribution losses on output line. In the event of an open remote sense line, the module shall maintain local sense regulation through an internal resistor. The module shall correct for a total of 0.5V of loss. The remote sense line impedance shall be < 10. RL 1.2 Rtrim k 1K 1.8 0.6 Q1 GND Vo RLoad TRIM Figure 29: Positive remote On/Off implementation Rtrim GND Figure 31: Circuit configuration for programming output voltage using an external resistor DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P8 FEATURES DESCRIPTIONS (CON.) Table 1 provides Rtrim values required for some common output voltages, By using a 0.5% tolerance trim resistor, set point tolerance of ±1.5% can be achieved as specified in the electrical specification. Voltage Margining Output voltage margining can be implemented in the DCM modules by connecting a resistor, R margin-up , from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, R margin-down, from the Trim pin Table 1 to the output pin for margining-down. Figure 33 shows the 0.6V Open 1V 3K 1.2V 2K 1.5V 1.8V 1.333K 1K 2.5V 0.632K 3.3V 0.444K circuit configuration for output voltage margining. If unused, leave the trim pin unconnected. A calculation tool is available from the evaluation procedure which computes the values of Rmargin-up and Rmargin-down for a specific output voltage and margin percentage. Vin Vo Rmargin-down Certain restrictions apply on the output voltage set point Q1 depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in On/Off Trim Rmargin-up Figure 32. The Upper Limit curve shows that for output voltages of 3.3V and lower, the input voltage must be Rtrim Q2 GND lower than the maximum of 5.5V. The Lower Limit curve shows that for output voltages of 1.8V and higher, the input voltage needs to be larger than the minimum of 2.4V. Figure 33: Circuit configuration for output voltage margining Output Voltage Sequencing The DCM 12V 12A modules include a sequencing feature, EZ-SEQUENCE that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either tie the SEQ pin to VIN or leave it unconnected. When an analog voltage is applied to the SEQ pin, the Figure 32: Output Voltage vs. Input Voltage Set Point Area plot output voltage tracks this voltage until the output reaches showing limits where the output voltage can be set for different the set-point voltage. The final value of the SEQ voltage input voltages. must be set higher than the set-point voltage of the module. The output voltage follows the voltage on the SEQ pin on a one-to-one basis. By connecting multiple modules together, multiple modules can track their output voltages to the voltage applied on the SEQ pin. DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P9 FEATURE DESCRIPTIONS (CON.) This will result in the module sinking current if a pre-bias For proper voltage sequencing, first, input voltage is voltage is present at the output of the module. applied to the module. The On/Off pin of the module is left unconnected (or tied to GND for negative logic modules or tied to VIN for positive logic modules) so that the module is ON by default. After applying input voltage to the module, a minimum 10msec delay is required before applying voltage on the SEQ pin. This delay gives the module enough time to complete its internal power-up soft-start cycle. During the delay time, the SEQ pin should be held close to ground (nominally 50mV ± 20 mV). This is required to keep the internal op-amp out of saturation thus preventing output overshoot during the start of the sequencing ramp. By selecting resistor R1 (see Figure. 34) according to the following equation 24950 R1 Vin 0.05 The voltage at the sequencing pin will be 50mV when the Figure 34: Circuit showing connection of the sequencing signal to the SEQ pin. sequencing signal is at zero. After the 10msec delay, an analog voltage is applied to the Simultaneous SEQ pin and the output voltage of the module will track this voltage on a one-to-one volt bases until the output Simultaneous tracking (Figure 35) is implemented by reaches the set-point voltage. To initiate simultaneous using the TRACK pin. The objective is to minimize the shutdown of the modules, the SEQ pin voltage is lowered voltage difference between the power supply outputs in a controlled manner. The output voltage of the modules during power up and down. tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained The simultaneous tracking can be accomplished by until the tracking and output voltages reach ground connecting VoPS1 to the TRACK pin of PS2. Please note potential. the voltage apply to TRACK pin needs to always higher When using the EZ-SEQUENCETM feature to control than the VoPS2 set point voltage. start-up of the module, pre-bias immunity during startup is PS2 PS1 Vin Vin disabled. The pre-bias immunity feature of the module VoPS1 VoPS2 relies on the module being in the diode-mode during TRACK start-up. When using the EZ-SEQUENCETM feature, modules goes through an internal set-up time of 10msec, On/Off On/Off and will be in synchronous rectification mode when the voltage at the SEQ pin is applied. Figure 35 Monotonic Start-up and Shutdown The DCM 12A modules have monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P10 THERMAL CONSIDERATIONS THERMAL CURVES 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. Figure 37: Temperature measurement location The allowed maximum hot spot temperature is defined at 107℃ Output Current(A) DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity @Vin = 5.0V, Vo=3.3V (Airflow From Pin8 To Pin10) 12 Natural Convection 9 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. 6 3 Thermal Derating 0 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. 25 30 35 40 45 50 55 60 65 75 80 85 Ambient Temperature (℃) Figure 38: Output current vs. ambient temperature and air velocity@Vin=5V, Vout=3.3V(Either Orientation) Output Current(A) DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity @Vin = 3.3V, Vo=2.5V (Airflow From Pin8 To Pin10) 12 Natural Convection PWB FANCING PWB 70 9 100LFM MODULE 6 AIR VELOCITY AND AMBIENT TEMPERATURE SURED BELOW THE MODULE 50.8(2.00") 3 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) AIR FLOW Figure 39: Output current vs. ambient temperature and air velocity@ Vin=3.3V, Vout=2.5V(Either Orientation) Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) Figure 36: Wind tunnel test setup DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P11 THERMAL CURVES Output Current(A) DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity @Vin = 3.3V, Vo=1.8V (Airflow From Pin8 To Pin10) 12 Natural Convection 9 6 3 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 40: Output current vs. ambient temperature and air velocity@Vin=3.3V, Vout=1.8V(Either Orientation) Output Current(A) DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity @Vin = 3.3V, Vo=1.2V (Airflow From Pin8 To Pin10) 12 Natural Convection 9 6 3 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 41: Output current vs. ambient temperature and air velocity@Vin=3.3V, Vout=1.2V(Either Orientation) Output Current(A) DCM04S0A0S12 Output Current vs. Ambient Temperature and Air Velocity @Vin = 3.3V, Vo=0.6V (Airflow From Pin8 To Pin10) 12 Natural Convection 9 6 3 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 42: Output current vs. ambient temperature and air velocity@Vin=3.3V, Vout=0.6V(Either Orientation) DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P12 PICK AND PLACE LOCATION RECOMMENDED PAD LAYOUT SURFACE-MOUNT TAPE & REEL DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P13 LEAD (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Note: The temperature refers to the pin of DCM, measured on the pin Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp. Peak Temp. 240 ~ 245 ℃ 220℃ Ramp down max. 4℃ /sec. 200℃ 150℃ Preheat time 90~120 sec. Time Limited 75 sec. above 220℃ Ramp up max. 3℃ /sec. 25℃ Time Note: The temperature refers to the pin of DCM, measured on the pin Vout joint. DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P14 MECHANICAL DRAWING DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P15 Part Numbering System DCS 04 S 0A0 S 12 P Product Series Input Voltage Numbers of Outputs Output Voltage Package Type Output Current On/Off logic DCS -3 , 6A DCM - 12A DCL - 20A 04 2.4~5.5V 12 – 4.5~14V S - Single 0A0 S - SMD Programmable 03.-3A 06 - 6A 12 - 12A 20 - 20A N- negative P- positive F A Option Code F- RoHS 6/6 (Lead Free) A - Standard Function MODEL LIST Model Name Packaging Input Voltage Output Voltage Output Current Efficiency 5.0Vin, 3.3Vdc @ 6A DCS04S0A0S12PFA SMD 2.4 ~ 5.5Vdc 0.6V~ 3.3Vdc 12A 95.0% CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: [email protected] Europe: Telephone: +31-20-655-0967 Fax: +31-20-655-0999 Email: [email protected] Asia & the rest of world: Telephone: +886 3 4526107 x6220~6224 Fax: +886 3 4513485 Email: [email protected] 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 . DS_ DCM04S0A0S12PFA_10022013 E-mail: [email protected] http://www.deltaww.com/dcdc P16