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DDR12 Series
DC-DC CONVERTERS Tracking Dual Output
Dual output
1 NEW Product
* High current dual-output power module for DDR memory * Single compact module provides 25 A @ 2.5 V for Vddq supply and 8 A @ 1.25 V for Vtt termination * Tracking dual output voltages (1.25 V @ 8 A, 2.5 V @ 25 A) * Output voltage remote sense (only on Vddq) * 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 specially 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 Vddq and remote ON/OFF facilities are included as standard, and the converter is protected against over-current and overvoltage conditions. All specifications are typical at nominal input, full load at 25 C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS - Vddq Voltage adjustability Output setpoint accuracy Using 1% trim resistors Line regulation Load regulation Cross regulation Temperature Co-efficient Ripple and noise (See Note 1) Transient response (See Note 2) Overshoot Undershoot OUTPUT SPECIFICATIONS - Vtt Tracking Accuracy Ripple and noise (See Note 1) Transient response (See Note 2) INPUT SPECIFICATIONS Input voltage range Input current Input current (max.) Nominal 12 V Minimum load Remote OFF (See Note 3) 10.8-13.2 Vdc 400 mA 20 mA 9 A max. @ Io max. and Vin = 10.8 Vdc Measured at Converter Pins (=Vddq/2 - Vtt) 5 Hz to 20 MHz 8 A/1 s 12 mV 5 Hz to 20 MHz 4 A/100 s Low line to high line Minimum load to full load 2.32-2.75 Vdc 2.5% 0.1% +0%/-1.0% 0.4% 0.2 mV/C 50 mV pk-pk 3.0% deviation 2.0% max. 150 mV max.
INPUT SPECIFICATIONS - Contd. Input reflected ripple Remote ON/OFF Logic compatibility ON OFF Start-up time (See Note 5) (See Note 4) 100 mA (pk-pk) Open collector ref to -input >2.0 Vdc <0.8 Vdc Power up Remote ON/OFF <20 ms <20 ms
EMC CHARACTERISTICS Electrostatic discharge Conducted immunity EN61000-4-2, IEC801-2 EN61000-4-2
GENERAL SPECIFICATIONS Nominal output at turn-on Efficiency Switching frequency (Fixed) Approvals and standards Material flammability Weight MTBF Telcordia SR-332 Vddq = 2.5 V Vtt = 1.25 V Vddq Vtt (See Note 7) 84% @ full load 300 kHz typ. 300 kHz typ. IEC60950/EN60950 UL/cUL 1950/60950 UL94V-0 34 g (1.3 oz) TBD hours
30 mV pk-pk 3.0% deviation
ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating ambient, temperature Non-operating 0 C to +80 C -40 C to +125 C
File Name: ddr12.pdf Rev: 04 Sept 2006
DDR12 Series
DC-DC CONVERTERS Tracking Dual Output
OUTPUT POWER (MAX.) 69 W 11 W 10.8-13.2 Vdc INPUT VOLTAGE OVP 3.6 Vdc 1.8 Vdc OUTPUT VOLTAGE 2.32-2.75 Vdc 1.16-1.375 Vdc
Dual output
2 NEW Product
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OUTPUT CURRENT (MIN.) 1.5 A 0A OUTPUT CURRENT (MAX) 25 A 8A 84%
EFFICIENCY (TYP.)
LOAD REGULATION 1.0% See Tracking Spec.
MODEL NUMBER (10,11) DDR12-25D08-AJ
Notes
Measured as per recommended set-up. Cin = 270 F (20 m ESR max, Cout = 3 x 560 F (5 m ESR max). 2 Vin = 12 Vdc, Tc = 25 C, bounded by min/max load specification with recommended system caps. 3 External input fusing is recommended. 4 Measured with external filter. 5 Start-up into resistive load. 6 Meets levels A and B conducted emissions with external components. 7 This product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 8 Large value ceramic capacitor located close to the input pins is recommended (TDK p/N C4532X7R1E106M). 9 Use of additional high quality ceramic output capacitors is recommended in the end system. 10 TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please contact your local sales representative for details. 11 NOTICE: Some models do not support all options. Please contact your local Artesyn representative or use the on-line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. 1
PIN CONNECTIONS PIN NO. J1-1 J1-2 J1-3 J1-4 J1-5 J1-6 J1-7 J2-1 J2-2 J2-3 J2-4 FUNCTION Power Good Output Enable Ground Ground 12 V Input 12 V Input 12 V Input Vtt Ref Vtt Vtt Ground PIN NO. J2-5 J2-6 J2-7 J2-8 J2-9 J2-10 J2-11 J2-12 J2-13 J2-14 J2-15 FUNCTION Ground Ground Ground Ground Vddq Sense Vddq Sense + Vddq Vddq Vddq Vddq Vddq
PROTECTION Short-circuit Overvoltage Overcurrent Vddq Vtt Vddq Vtt Vddq Vtt Latching Latching Latching Latching Latching Fold-back
CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible.
RECOMMENDED SYSTEM CAPACITANCE Input capacitance Output capacitance (See Note 9) (See Note 8) Vddq Vtt 10 F/3 m ESR max. 1680 F/5 m ESR max. 1680 F/5 m ESR max.
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 UL 60950 File No. E139421 TUV Product Service (EN60950) Certificate No. B 02 12 19870 206 CB report and certificate to IEC60950
File Name: ddr12.pdf Rev: 04 Sept 2006
DDR12 Series
DC-DC CONVERTERS Tracking Dual Output
Dual output
3 NEW Product
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
0.500 (12.67) Ref
0.260 (6.71)
3.000 (76.20)
0.062 (1.57) PCB
0.025 (0.64) TYP.
0.170 (4.39)
1.200 (30.48)
0.150 (3.81) Typ
0.050 (1.30) TYP.
J1
J2
PIN 1
PIN 7 PIN 1
0.025 (0.64) Typ 0.100 (2.54) Typ
PIN 15
0.250 (6.35)
1.100 (27.94)
Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places 0.02 (0.51) 3 Places 0.010 (0.25)
Datasheet (c) Artesyn Technologies(R) 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.
Please consult our website for the following items: Application Note Longform Data Sheet
www.artesyn.com
File Name: ddr12.pdf Rev: 04 Sept 2006

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