DCM12S0A0S12NFA DELTA | Alldatasheet
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DATASHEET E-mail: DCDC@delta.com.tw DS_ DCM12S0A0S12NFA _10022013 http://www.deltaww.com/dcdc
FEATURES
High efficiency: 95.4% @ 12Vin, 5.0V/12A out 93.3% @ 12Vin, 3.3V/12A out 91.6% @ 12Vin, 2.5V/12A out 89.2% @ 12Vin, 1.8V/12A out 85.6% @ 12Vin, 1.2V/12A out 80.2% @ 10Vin, 0.69V/12A out Small size and low profile: Surface mount packaging Standard footprint Voltage and resistor-based trim Pre-bias startup Output voltage tracking No minimum load required Output voltage programmable from 0.69Vdc to 5.0Vdc 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) CE mark meets 73/23/EEC and 93/68/EEC directives Delphi DCM, Non-Isolated Point of Load DC/DC Power Modules: 4.5~14Vin, 0.69-5.0V/12Aout The Delphi Series DCM, 4.5-14V input, single output, 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 D CM series provides a programmable output voltage from 0. 69 V to 5.0V 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 standard footprint. 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 OPTIONS Negative/Positive on/off logic Tracking feature Sequence feature
APPLICATIONS
Telecom / DataCom Distributed power architectures Servers and workstations LAN / WAN applications Data processing applications
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P2 TECHNICAL SPECIFICATIONS PARAMETER NOTES and CONDITIONS DCM12S0A0S12P(N)FA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) -0.3 15 V Sequencing Voltage -0.3 Vin max V Operating Ambient Temperature -40 85 ℃ Storage Temperature -55 125 ℃ INPUT CHARACTERISTICS Operating Input Voltage Vo ≦ Vin –0.6 4.5 14.0 V Input Under-Voltage Lockout Turn-On Voltage Threshold 4.45 V Turn-Off Voltage Threshold 4.2 V Lockout Hysteresis Voltage 0.25 V Maximum Input Current Vin=4.5V to14V, Io=Io,max 11.5 A No-Load Input Current (VIN = 12.0Vdc, I o = 0, module enabled) Vo,set = 0.69 Vdc 26 mA Vo,set = 3.3 Vdc 50 mA Off Converter Input Current (VIN = 12.0Vdc, module disabled) 1.2 mA Inrush Transient 1 A2S Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; Vin =0 to 14V, Io= Iomax ; 12.5 mAp-p Input Ripple Rejection(120Hz) 45 dB OUTPUT CHARACTERISTICS Output Voltage Set Point with 0.5% tolerance for external resistor used to set output voltage) -1.5 Vo,set +1.5 %Vo,set Output Voltage Adjustable Range (selected by an external resistor) 0.69 5.0 V Output Voltage Regulation Line(VIN=VIN, min to VIN, max) For Vo>=2.5V 0.4 %Vo,set Vo,set For Vo<2.5V 10 mV Load(Io=Io, min to Io, max) For Vo>=2.5V 10 mV For Vo<2.5V 5 mV Temperature(Tref=TA, min to TA, max) For Vo>=2.5V 0.5 %Vo,set Vo,set For Vo<2.5V 5 mV Total Output Voltage Range Over sample load, line and temperature -2.5 +2.5 %Vo,set Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF+10uF+47uF ceramic 65 80 mV RMS Full Load, 1µF+10uF+47uF ceramic 23 28 mV Output Current Range 0 12 A Output Voltage Over-shoot at Start-up 5 % Vo,set Output DC Current-Limit Inception 150 % Io Output Short-Circuit Current (Hiccup Mode) Io,s/c 2 Adc DYNAMIC CHARACTERISTICS Dynamic Load Response 10µF Tan & 1µF Ceramic load cap, 1A/µs Positive Step Change in Output Current 0% Io, max to 50% Io, max 360 mV Negative Step Change in Output Current 50% Io, max to 0% Io, max 400 mV Settling Time to 10% of Peak Deviation 50 µs Turn-On Transient Io=Io.max Delay Time, From On/Off Control Time for Von/off to Vo=10% of Vo,set 4 ms Delay Time, From Input Time for Vin=Vin,min to Vo=10% of Vo,set 3.5 ms Output Voltage Rise Time Time for Vo to rise from 10% to 90% of Vo,set 5 ms Output Capacitive Load Full load; ESR ≧0.15mΩ 47 800 µF EFFICIENCY Vo=5.0V Vin=12V, 100% Load 95.4 % Vo=3.3V Vin=12V, 100% Load 93.3 % Vo=2.5V Vin=12V, 100% Load 91.6 % Vo=1.8V Vin=12V, 100% Load 89.2 % Vo=1.2V Vin=12V, 100% Load 85.6 % Vo=0.69V Vin=10V, 100% Load 80.2 % FEATURE CHARACTERISTICS Switching Frequency 500 kHz Synchronization Frequency Range 520 600 kHz ON/OFF Control, (Negative logic) Logic Low Voltage Module On, Von/off 0 1 V Logic High Voltage Module Off, Von/off 2.0 Vin,max V Logic Low Current Module On, Ion/off 10 µA Logic High Current Module Off, Ion/off 1 mA ON/OFF Control, (Positive Logic) Logic High Voltage Module On, Von/off Vin-1 Vin,max V Logic Low Voltage Module Off, Von/off 3.5 V Logic Low Current Module On, Ion/off 3 mA Logic High Current Module Off, Ion/off 25 µA Tracking Slew Rate Capability 0.5 V/msec Tracking Delay Time Delay from Vin.min to application of tracking voltage 10 ms Tracking Accuracy Power-up 0.5V/mS 100 mV Power-down 0.5V/mS 150 mV GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C 22 M hours Weight 3.8 grams (TA = 25°C, airflow rate = 300 LFM, Vin = 4.5Vdc and 14.0Vdc, nominal Vout unless otherwise noted.)
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P13 FEATURE DESCRIPTIONS (CON.) 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, Rmargin-down, from the Trim pin to the output pin for margining-down. Figure 45 shows the 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. Vo On/Off Vin GND Trim Rmargin-up Rmargin-down Rtrim Figure 45: 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 output voltage tracks this voltage until the output reaches the set-point voltage. The final value of the SEQ voltage 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. For proper voltage sequencing, first, input voltage is 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 47) according to the following equation 05.0
249501 VinR
Figure 46: Sequential Start-up The voltage at the sequencing pin will be 50mV when the sequencing signal is at zero.
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P14 FEATURE DESCRIPTIONS (CON.) After the 10msec delay, an analog voltage is applied to the SEQ pin and the output voltage of the module will track this voltage on a one-to-one volt bases until the output reaches the set-point voltage. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. The output voltage of the modules tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential. When using the EZ-SEQUENCETM feature to control start-up of the module, pre-bias immunity during startup is disabled. The pre-bias immunity feature of the module relies on the module being in the diode-mode during start-up. When using the EZ-SEQUENCETM feature, modules goes through an internal set-up time of 10msec, and will be in synchronous rectification mode when the voltage at the SEQ pin is applied. This will result in the module sinking current if a pre-bias voltage is present at the output of the module. Figure 47: Circuit showing connection of the sequencing signal to the SEQ pin. Simultaneous Simultaneous tracking (Figure 41) is implemented by using the TRACK pin. The objective is to minimize the voltage difference between the power supply outputs during power up and down. Power Good The DCM modules provide a Power Good (PGOOD) signal that is implemented with an open-drain output to indicate that the output voltage is within the regulation limits of the power module. The PGOOD signal will be de-asserted to a low state if any condition such as over temperature, over current or loss of regulation occurs that would result in the output voltage going ±10% outside the set point value. The PGOOD terminal should be connected through a pull up resistor (suggested value 100KΩ) to a source of 5VDC or lower. 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. Synchronization The DCM 12A modules can be synchronized using an external signal. Details of the SYNC signal are provided in below table. If the synchronization function is not being used, leave the SYNC pin floating.
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P17 PICK AND PLACE LOCATION RECOMMENDED PAD LAYOUT SURFACE-MOUNT TAPE & REEL
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P18 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 Note: The temperature refers to the pin of DCM, measured on the pin Vout joint. Temp. Time 150℃ 200℃ 90~120 sec. Time Limited 75 sec. above 220℃ 220℃ Preheat time Ramp up max. 3 ℃/sec. Ramp down max. 4 ℃/sec. Peak Temp. 240 ~ 245 ℃ 25℃
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P19 MECHANICAL DRAWING
DS_DCM12S0A0S12NFA_10022013 E-mail: DCDC@delta.com.tw http://www.deltaww.com/dcdc P20 PART NUMBERING SYSTEM DCM 12 S 0A0 S 12 N F A Product Series Input Voltage Numbers of Outputs Output Voltage Package Type Output Current On/Off logic Option Code DCT - 3A DCS - 6A DCM - 12A DCL - 20A 04 - 2.4~5.5V 12 – 4.5~14V S - Single 0A0 - Programmable S - SMD 03 - 3A 06 - 6A 12 - 12A 20 - 20A N- negative P- positive F- RoHS 6/6 (Lead Free) A - Standard Function MODEL LIST Model Name Packaging Input Voltage Output Voltage Output Current Efficiency 12Vin, 5Vdc @ 12A DCM12S0A0S12NFA SMD 4.5V ~ 14Vdc 0.69V~ 5.0Vdc 12A 95.4% CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Telephone: +31-20-655-0967 Fax: +31-20-655-0999 Email: DCDC@delta-es.com Asia & the rest of world: Telephone: +886 3 4526107 x6220~6224 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 fro m 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.