DDR12 ARTESYN | Alldatasheet
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DDR12 Series | Tracking Dual Output DC-DC Converters [ 2 YEAR WARRANTY ] High current dual-output power module for DDR memory Single compact module provides 25 A @ 2.5 V for V ddq supply and 8 A @ 1.25 V for V tt termination Tracking dual output voltages (1.25 V @ 8 A, 2.5 V @ 25 A) Output voltage remote sense Sink capability for logic terminations Power good output signal Overvoltage protection Overcurrent protection Remote ON/OFF Available RoHS compliant The dual output DDR12-25D08-AJ is specifically designed to meet the power needs of double data rate memory DIMMS and associated memory control logic. The Vtt output tracks the Vddq output, while the Vtt output can sink current as required by logic terminations.This converter offers typical efficiencies greater than 84% when operated at 50% load or greater. This model features a wide input range as well as trimmable output voltages. Remote sense on V ddq and remote ON/OFF facilities are included as standard, and the converter is protected against over- current and over-voltage conditions. File Name: lf_ddr12.pdf Rev: 29 Nov 2005
SXA10 Series | 15W DC/DCDDR12 Series | Tracking Dual Output DC-DC Converters Characteristic Symbol Min Typ Max Units Notes and Conditions Input voltage - turn on V in (on) 10 10.2 10.4 Vdc Input voltage - turn off V in (off) 9.7 9.9 10.1 Vdc Turn on delay - enabled, T delay 5 ms With the enable signal asserted, then power applied (power) this is the time from when the input voltage reaches the minimum specified operating voltage until the POWER GOOD is asserted high Turn on delay - power T delay 5m s V in = Vin (nom), then enabled. applied, then enabled (enable) This is the time taken until the POWER GOOD is asserted high Output to POWER GOOD T delay 3 ms Output voltage in full regulation delay to POWER GOOD asserted high Rise time T rise 2m s Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect devi ce reliability. All specifications are typical at V in(nom), Vddq = 2.5 V, Vtt = 1.25 V and full load. Tests were performed at 25 ˚C unless otherwise stated. Characteristic Symbol Min Typ Max Units Notes and Conditions Input voltage - continuous V in (cont) -0.3 13.2 Vdc V in(+) - Vin(-) Input voltage - nominal V in (nom) 12 Operating temperature T op 0 80 ºC Refer to derating guidelines and Note 1 Storage temperature T storage -40 125 ºC Output current I ddq (max) 25 A Itt (max) 8 A Characteristic Symbol Min Typ Max Units Notes and Conditions Input voltage - operating V in (oper) 10.8 12 13.2 Vdc Input current - min. load l in 400 mAdc V in (min) - Vin (max), enabled Input current - Quiescent l in (off) 20 mAdc Converter disabled Absolute Maximum Ratings Input Characteristics Turn On/Off File Name: lf_ddr12.pdf Rev: 29 Nov 2005
DDR12 Series | Tracking Dual Output DC-DC Converters 3 www.artesyn.com Characteristic - Signal Name Symbol Min Typ Max Units Notes and Conditions At remote/control ON/OFF pin See Notes 2 and 3 Open collector or equivalent See Application Note 133 for compatible Remote ON/OFF details High level input voltage V ih 2.0 V Converter guaranteed on when OUTEN pin is greater than Vih (max) Low level input voltage V iI 0.80 V Converter guaranteed off when OUTEN pin is less than Vil (max) Low level input current I il (max) 1 mA V iI = 0.0 V Characteristic Symbol Min Typ Max Units Notes and Conditions Mean time between failure MTBF TBD Hours Telcordia SR-332 Signal Electrical Interface Reliability and Service Life File Name: lf_ddr12.pdf Rev: 29 Nov 2005
SXA10 Series | 15W DC/DCDDR12 Series | Tracking Dual Output DC-DC Converters Other Specifications EMC Electromagnetic Compatibility Referenced ETSI standards: ETS 300 019: Environmental conditions and environmental tests for telecommunications equipment ETS 300 019: Part 1-3 (1997) Classification of environmental conditions stationary use at weather protected locations ETS 300 019: Part 2-3 (1997) Specification of environmental tests stationary use at weather protected locations Material Ratings Characteristic - Signal Name Notes and Conditions Flammability rating UL94V-0 Material type FR4 PCB Performance criteria: NP: Normal Performance: EUT shall withstand applied test and operate within relevant limits as specified without damage. RP: Reduced Performance: EUT shall withstand applied test. Reduced performance is permitted within specified limits, resumptio n to normal performance shall occur at the cessation of the test. LFS: Loss of Function (self recovery): EUT shall withstand applied test without damage, temporary loss of function permitted du ring test. Unit will self recover to normal performance after test. Referenced ETSI standards: ETS 300 386-1 table 5 (1997): Public telecommunication network equipment, EMC requirements ETS 300 132-2 (1996): Power supply interface at the input to telecommunication equipment: Part 2 operated by direct current (dc ) ETR 283 (1997): Transient voltages at interface A on telecommunication direct current (dc) power distributions Characteristic Symbol Min Typ Max Units Notes and Conditions Switching frequency F sw 300 kHz Fixed frequency Weight 34 g Phenomenon Port Standard Test level Criteria Notes and conditions Immunity: ESD Enclosure EN61000-4-2 6 kV contact As per ETS 300 386-1 table 5 8 kV air Model Numbers File Name: lf_ddr12.pdf Rev: 29 Nov 2005 Model Input Output Output Current Typical Load Number Voltage Voltage (Max.) Efficiency Regulation 1.16-1.375 Vdc 8 A See Tracking Spec.
DDR12 Series | Tracking Dual Output DC-DC Converters 5 www.artesyn.com File Name: lf_ddr12.pdf Rev: 29 Nov 2005 Input Characteristics Electrical Charact. - Vddq O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage V ddq (nom) 2.316 Vdc With no external trim resistor Output voltage range V ddq 2.316 2.750 Vdc For details on trimming the output voltage see Application Note 133 Output set-point accuracy ±1.5 ±2.5 % Using 1% trim resistors measured at minimum load Load regulation +0/-1 +1/-2 % Vary load with line held constant (Voltage typically drops with load) Line regulation ±0.1 ±0.2 % Vary line with load held constant Cross regulation ±0.4 ±0.6 Vary load on V tt with load on Vddq held constant Temperature co-efficient 0.2 mV/ºC Ripple and noise 50 mV pk-pk With recommended external load capacitance and
5 Hz to 20 MHz bandwidth
Load transient response - 3 % Peak deviation for 75% to 100% peak deviation step load, di/dt = 0.04 A/µs Load transient response - 200 µs Settling time to within 1% of recovery output setpoint voltage for 75% to 100% step load External load capacitance C ext (Vddq) 1000 1680 3000 µF Recommended 3 x 560 µF with total ESR of 5 mΩ and additional high-quality ceramic capacitors. Consult factory for other capacitance Overshoot 2.0 % Nominal output at turn-on Undershoot 150 mVdc Output current - continuous I ddq 1.5 25 Adc Output current - short circuit I sc-ddq 0 A rms Latching short circuit protection power or enable needs to be cycled Characteristic Symbol Min Typ Max Units Notes and Conditions Input current - operating I in 7.2 Adc Reflected ripple current I in (ripple) 35 mA rms measured with external filter. 50 mA pk-pk See Application Note 133 for details Input capacitance - internal C input 420 µF filter Input capacitance - external C bypass 10 µF Use large value ceramic filter
SXA10 Series | 15W DC/DCDDR12 Series | Tracking Dual Output DC-DC Converters Efficiency Characteristic Symbol Min Typ Max Units Notes and Conditions Efficiency η 84 % Full load Electrical Charact. - Vtt O/P Protection and Control Features Characteristic Symbol Min Typ Max Units Notes and Conditions Overcurrent limit inception I ddq 36 Adc Itt 14 Adc File Name: lf_ddr12.pdf Rev: 29 Nov 2005 Characteristic Symbol Min Typ Max Units Notes and Conditions Tracking accuracy 12 25 mV Measured at converter pins (=Vddq/2 - Vtt) Ripple and noise 30 mV pk-pk With recommended external load capacitance and Load transient response - 3 % Peak deviation for 75% to 100% peak deviation step load, di/dt = 8 A/µs Load transient response - 200 µs Settling time to within 1% of recovery output setpoint voltage for 75% to 100% step load External load capacitance C ext (Vtt) 1000 1680 3000 µF Recommended 3 x 560 µF with total ESR of 5 mΩ and additional high-quality ceramic capacitors. Consult factory for other capacitance Output current - continuous I tt 0 8 Adc Output current - short circuit I sc-tt 0 A rms Latching short circuit protection power or enable needs to be cycled
DDR12 Series | Tracking Dual Output DC-DC Converters 9 www.artesyn.com File Name: lf_ddr12.pdf Rev: 29 Nov 2005 0.500 (12.67) Ref 0.062 (1.57) PCB 3.000 (76.20) 1.200 (30.48) PIN 1 PIN 7 PIN 8 PIN 220.025 (0.64) Typ 0.100 (2.54) Typ 0.150 (3.81) Typ 0.250 (6.35) 1.100 (27.94) 0.050 (1.30) TYP. 0.025 (0.64) TYP. 0.260 (6.71) 0.170 (4.39) Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places ±0.02 (±0.51) 3 Places ±0.010 (±0.25) Figure 10: Mechanical Drawing and Pinout Table Pin Connections Pin No. Function Pin No. Function J1-1 Power Good J2-5 Ground J1-2 Output Enable J2-6 Ground J1-3 Ground J2-7 Ground J1-4 Ground J2-8 Ground J1-5 12V Input J2-9 V ddq Sense - J1-6 12V Input J2-10 V ddq Sense + J1-7 12V Input J2-11 V ddq J2-1 V tt Ref. J2-12 V ddq J2-2 V tt J2-13 V ddq J2-3 V tt J2-14 V ddq J2-4 Ground J2-15 V ddq
SXA10 Series | 15W DC/DCDDR12 Series | Tracking Dual Output DC-DC Converters 10 File Name: lf_ddr12.pdf Rev: 29 Nov 2005 Note 1 For maximum reliability temperature at the Thermal Reference Point, shown in Figure 11, should not exceed 100 ºC. Note 2 The control pin is referenced to Vin- Note 3 The DDR12 is supplied as standard with active High logic. Control input pulled low: Unit Disabled Control input left open: Unit Enabled Note 4 Thermal reference set up: Unit mounted on an edge card test board 215 mm x 115 mm. Test board mounted vertically. For test details and recommended set-up see Application Note 133. CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is accessible only to trained personnel. The user must provide the recommended fusing in order to comply with safety approvals. Thermal Reference Point Figure 11: Thermal Reference Points
DDR12 Series | Tracking Dual Output File Name: lf_ddr12.pdf Rev: 29 Nov 2005 Longform Datasheet © Artesyn Technologies® 2005 The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. NORTH AMERICA e-mail: sales.us@artesyn.com 800 769 7274 +508 628 5600 EUROPEAN LOCATIONS e-mail: sales.europe@artesyn.com IRELAND +353 24 93130 AUSTRIA +43 1 80150 FAR EAST LOCATIONS e-mail: sales.asia@artesyn.com HONG KONG +852 2699 2868 DC-DC Converters 11 www.artesyn.com