NXI110 Series Single output, 5 Bit Selectable (Non-Isolated) DC/DC CONVERTERS • • • • • • • • • • • • • 110W Non-isolated DC/DC Converters 1 Meets VRM9.0 specification High efficiency: 84% typical @ Vin = 12V, Vout = 1.7V, Iout = 60A Multi-phase power conversion Microprocessor voltage identification input - 5 Bit VID input - 1.10V to 1.85V in 25mV steps Remote enable pin Power good signal True double ended differential remote sense Democratic current sharing, no need for master/slave configuration Up to 50A/µsec load transient no load to full load, recovery within 50µsec Overcurrent and short circuit protection Overvoltage protection with on board fuse Vertical plug-in to standard motherboard connector No minimum load requirement The NXI110 non-isolated DC/DC converters are designed to meet the exceptionally fast transient response requirements of today’s microprocessors and fast switching logic in a compact size at a very affordable price. Advanced Circuit techniques, component selection and placement optimization, state-of-the-art thermal packaging, and Surface Mount Technologies provide a high power density, highly reliable, and very precise voltage regulation system for advanced microprocessors. Multi-phase power conversion techniques allow the NXI converters to lead the industry with regard to conversion efficiency without adding unneccesary complexity. VRM9.0 specification compliant without the need for expensive external components. On board active current sharing circuit guarantees the current sharing specification is met both during both static and dynamic load conditions. SPECIFICATIONS All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS Voltage adjustability GENERAL SPECIFICATIONS See table Set point accuracy Vout Ripple and noise (See Note 1) 20MHz bandwidth Transient response peak dev. settling time (See Note 2) Short circuit protection Efficiency 1V7, 1V85 output @ 60A 1V10 output @ 60A Switching frequency Fixed (See Note 3) Standards 94V-0 Flammability rating ±0.8% 15mV pk-pk 125mV 50µs Continuous automatic recovery INPUT SPECIFICATIONS Weight MTBF 84% 76% 900kHz 75g (2.64 oz) Bellcore TR-332 Mating connector 2,000,000 hours (See Note 4) ENVIRONMENTAL SPECIFICATIONS Input voltage range 12Vin nominal Input current No load Remote OFF UVLO turn ON voltage UVLO turn OFF voltage Start-up time 2 YEAR WARRANTY 11.0 to 13.2VDC 300mA 40mA max. 10.8V typ. 9.5V typ. Nominal line Active high remote ON/OFF Logic compatibility ON Open circuit voltage OFF Maximum temperature shock Operating Temperature shock Operating Non-operating Humidity Operating Storage 85% RH 95% RH Altitude Operating Storage 10,000 feet max. 50,000 feet max. Shock Operational and non-operational 50G 11ms half sine wave Vibration (See Note 5) Operational and non-operational 0.02G2/Hz max. Electrostatic discharge Operating (See Note 6) Non-operating Thermal performance (See Note 7) Operating ambient temperature 10ms Ref. to -input 5.0VDC 0.8VDC max. 5˚C/10 min. 10˚C/hour 20˚C/hour ESD 15kV ESD 25kV 0 to +60ºC File Name: NXI110.PDF Rev: 02 May 2002 NXI110 Series Single output, 5 Bit Selectable (Non-isolated) DC/DC CONVERTERS 110W Non-isolated DC/DC Converters 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm INPUT VOLTAGE NOMINAL OUTPUT VOLTAGE NOMINAL OUTPUT CURRENT TYPICAL EFFICIENCY MODEL NUMBER 12VDC See Table 2 60A 84% NXI110-12P1V8C Notes 1 2 3 15mV pk-pk ripple with no external output filtering. Vin = 12V, Vout = 1.6V, Iout = 60A. 125mV peak deviation when slewing load from no load to full load at 50A/µsec. Oscon type low impedance caps required across output. Each phase operates at a fixed 225kHz. Effective fundamental output frequency is 900kHz / 4 phases each at 225kHz interleaved. 4 5 6 7 Recommended mating connector is AMP 1364125-1 or equivalent. From 5Hz to 20Hz, maintaining 0.02G2/Hz from 20Hz to 500Hz, all axes. Initilization level; ESD event shall cause no out-of-regulation conditions. Requires 400LFM forced air over the converter. Ensure the thermal reference point (see figure 2) is kept below 95ºC to maintain the reliability of the converter. TABLE 2 : VOLTAGE IDENTIFICATION (VID) CODES TABLE 1 : PIN CONNECTIONS PIN NO. FUNCTION PIN NO. FUNCTION VID4 VID3 VID2 VID1 VID0 VDAC 1 Vin+ 32 Vo- 1 1 1 1 1 Off 2 Vin+ 33 Vo+ 1 1 1 1 0 1.100 3 Vin+ 34 Vo- 1 1 1 0 1 1.125 4 Vin+ 35 Vo+ 1 1 1 0 0 1.150 5 Reserved 36 Vo- 1 1 0 1 1 1.175 6 Key 37 Vo+ 1 1 0 1 0 1.200 7 VID3 38 Vo- 1 1 0 0 1 1.225 8 VID1 39 Vo+ 1 1 0 0 0 1.250 9 Reserved 40 Vo- 1 0 1 1 1 1.275 10 PWRGD 41 Vo+ 1 0 1 1 0 1.300 11 Vo sen- 42 Vo- 1 0 1 0 1 1.325 12 Reserved 43 Vo+ 1 0 1 0 0 1.350 13 Vo- 44 Vo- 1 0 0 1 1 1.375 14 Vo+ 45 Vo+ 1 0 0 1 0 1.400 15 Vo- 46 Vo- 1 0 0 0 1 1.425 16 Vo+ 47 Vo+ 1 0 0 0 0 1.450 17 Vo- 48 Vo- 0 1 1 1 1 1.475 18 Vo+ 49 Vo+ 0 1 1 1 0 1.500 19 Vo- 50 Vo+ 0 1 1 0 1 1.525 20 Vo+ 51 Reserved 0 1 1 0 0 1.550 21 Vo- 52 Vo sen+ 0 1 0 1 1 1.575 22 Vo+ 53 OUTEN 0 1 0 1 0 1.600 23 Vo- 54 Ishare 0 1 0 0 1 1.625 24 Vo+ 55 VID0 0 1 0 0 0 1.650 25 Vo- 56 VID2 0 0 1 1 1 1.675 26 Vo+ 57 VID4 0 0 1 1 0 1.700 27 Vo- 58 VRM-pres 0 0 1 0 1 1.725 28 Vo+ 59 Vin- 0 0 1 0 0 1.750 29 Vo- 60 Vin- 0 0 0 1 1 1.775 30 Vo+ 61 Vin- 0 0 0 1 0 1.800 31 Vo- 62 Vin- 0 0 0 0 1 1.825 0 0 0 0 0 1.850 www.artesyn.com File Name: NXI110.PDF Rev: 02 May 2002 NXI110 Series Single output, 5 Bit Selectable (Non-isolated) DC/DC CONVERTERS 110W Non-isolated DC/DC Converters 3 For the most current data and application support visit www.artesyn.com/powergroup/products.htm Mechanical Notes All dimensions in INCHES (mm). 3.800 (96.520) 3.600 (91.440) 0.563 (14.300) MAX 0.425 (10.795) 0.425 (10.795) 0.100 (2.540) TYP COMP CLEAR 0.54 (13.72) 0.425 (10.795) 2.300 (58.420) 1.075 (27.305) 2.615 (66.421) REF 1 62 6 No Contact 1 KEEP OUT AREA 0.310 (7.874) 11 12 31 32 32-62 1-31 0.300 (7.620) 0.610 (15.494) 1.122 (28.499) REF 0.042 (1.067) KEY 0.093 (2.362) 3.000 (76.200) 0.307 (7.798) 3.186 (80.924) 0.250 (6.350) MAX 0.063 (1.600) THK FR-4 DBL-SIDED CIRCUIT BOARD W/GOLD-PLATED (30u") CONNECTOR FINGERS DIMENSIONS IN INCHES (MM) Figure 1: Mechanical Drawing TRP Figure 2: Thermal Reference Point (TRP) Monitor Tab Indicated Data Sheet © Artesyn Technologies® 2002 The information and specifications contained in this data sheet 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. www.artesyn.com File Name: NXI110.PDF Rev: 02 May 2002