DDR12 Series Dual output DC-DC CONVERTERS Tracking 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. 2 YEAR WARRANTY SPECIFICATIONS All specifications are typical at nominal input, full load at 25 °C unless otherwise stated OUTPUT SPECIFICATIONS - Vddq INPUT SPECIFICATIONS - Contd. Voltage adjustability 2.32-2.75 Vdc Output setpoint accuracy Using 1% trim resistors ±2.5% Line regulation Low line to high line ±0.1% Load regulation Minimum load to full load +0%/-1.0% Cross regulation ±0.4% Temperature Co-efficient Input reflected ripple (See Note 4) Remote ON/OFF Logic compatibility ON OFF Start-up time (See Note 5) 100 mA (pk-pk) Open collector ref to -input >2.0 Vdc <0.8 Vdc Power up Remote ON/OFF <20 ms <20 ms 0.2 mV/ºC Ripple and noise (See Note 1) 5 Hz to 20 MHz 50 mV pk-pk Transient response (See Note 2) 4 A/100 µs Overshoot Nominal output at turn-on ±3.0% deviation EMC CHARACTERISTICS Electrostatic discharge Conducted immunity EN61000-4-2, IEC801-2 EN61000-4-2 GENERAL SPECIFICATIONS Undershoot 2.0% max. Efficiency Vddq = 2.5 V Vtt = 1.25 V Switching frequency (Fixed) Vddq Vtt Approvals and standards (See Note 7) 150 mV max. OUTPUT SPECIFICATIONS - Vtt Tracking Accuracy Measured at Converter Pins (=Vddq/2 - Vtt) Ripple and noise (See Note 1) 5 Hz to 20 MHz Transient response (See Note 2) 8 A/1 µs 12 mV 30 mV pk-pk ±3.0% deviation INPUT SPECIFICATIONS 300 kHz typ. 300 kHz typ. IEC60950/EN60950 UL/cUL 1950/60950 UL94V-0 Material flammability Weight MTBF 84% @ full load 34 g (1.3 oz) Telcordia SR-332 TBD hours ENVIRONMENTAL SPECIFICATIONS Input voltage range Nominal 12 V Input current Minimum load Remote OFF Input current (max.) (See Note 3) 10.8-13.2 Vdc 400 mA 20 mA Thermal performance Operating ambient, temperature Non-operating 0 °C to +80 °C -40 °C to +125 °C 9 A max. @ Io max. and Vin = 10.8 Vdc File Name: ddr12.pdf Rev: 04 Sept 2006 DDR12 Series Dual output DC-DC CONVERTERS Tracking Dual Output 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm OUTPUT POWER (MAX.) INPUT VOLTAGE OVP 69 W 11 W 3.6 Vdc 10.8-13.2 Vdc 1.8 Vdc OUTPUT VOLTAGE OUTPUT CURRENT (MIN.) OUTPUT CURRENT (MAX) 2.32-2.75 Vdc 1.5 A 25 A 1.16-1.375 Vdc 0A 8A Notes EFFICIENCY (TYP.) NEW Product LOAD REGULATION MODEL NUMBER (10,11) ±1.0% 84% See Tracking Spec. DDR12-25D08-AJ PIN CONNECTIONS Measured as per recommended set-up. Cin = 270 µF (20 mΩ ESR max, Cout = 3 x 560 µF (5 mΩ 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 PROTECTION Short-circuit Vddq Vtt Latching Latching Overvoltage Vddq Vtt Latching Latching Overcurrent Vddq Vtt Latching Fold-back 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 12 V Input J2-9 Vddq Sense - J1-6 12 V Input J2-10 Vddq Sense + J1-7 12 V Input J2-11 Vddq J2-1 Vtt Ref J2-12 Vddq J2-2 Vtt J2-13 Vddq J2-3 Vtt J2-14 Vddq J2-4 Ground J2-15 Vddq CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. RECOMMENDED SYSTEM CAPACITANCE Input capacitance (See Note 8) Output capacitance (See Note 9) Vddq Vtt 10 µF/3 mΩ ESR max. 1680 µF/5 mΩ ESR max. 1680 µF/5 mΩ ESR max. International Safety Standard Approvals UL/cUL CAN/CSA 22.2 UL 60950 File No. E139421 TÜV 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 Dual output DC-DC CONVERTERS Tracking Dual Output 3 0.062 (1.57) PCB NEW Product 0.260 (6.71) 0.170 (4.39) 0.500 (12.67) Ref For the most current data and application support visit www.artesyn.com/powergroup/products.htm 3.000 (76.20) 1.200 (30.48) 0.150 (3.81) Typ 0.025 (0.64) TYP. J2 J1 PIN 1 0.050 (1.30) TYP. PIN 7 PIN 1 0.025 (0.64) Typ PIN 15 0.100 (2.54) Typ 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 © 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. Please consult our website for the following items: 4 Application Note 4 Longform Data Sheet www.artesyn.com File Name: ddr12.pdf Rev: 04 Sept 2006