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| Replaced by VRK81B100CS VRK81B080CU Programmable, 80A Single Output DC/DC Converter OBSOLETE PRODUCT Order Code Code Input Voltage (NOM.) M V (NOM.) V Contact Factory for Replacement Model VRK81B080CU VRK81B080CU B 12 0.800-1.55 SELECTION SELECTION GUIDE C E g Output Voltage Voltage Output Current A 80 Efficiency % (TYP.) 85 INPUT CHARACTERISTICS CHARACTERISTICS E Parameter Input voltage operating range Conditions1 Turn-on threshold Turn-off threshold Hysteresis voltage Typical: 80A, 1.4VID, VIN = 12V Max: 80A, 1.55VID, VIN = 12V Enable state, no load Disabled state On state range Off state range MIN. 10.2 6.5 5.4 0.7 TYP. 12.0 6.9 6.0 0.9 11 200 20 MAX. 13.2 7.3 6.6 1.1 13 400 50 5 0.4 Units V FEATURES Meets AMD K8 requirements DAC Programmable output voltage Power good output Differential remote sense Remote enable Supervisory functions Latch off overcurrent Short circuit protection Tri-state output when disabled Dynamic VID capability 1U Form factor (1.200" total mating height) SMBus temperature monitor Under voltage lockout Maximum input current No-load input current Disabled input current Enable - positive logic A mA V 100 10 0.8 -0.3 OUTPUT CHARACTERISTICS Parameter Voltage set point Line regulation Load regulation Voltage total regulation DC Ripple & noise 2 Current operating range Efficiency Turn-on time Recommended bulk output capacitance Conditions1 5-Bit DAC controlled MIN. 0.800 -5 VID-50mV TYP. 0 0.6 MAX. 1.55 5.0 VID+50mV Units V mV m V mVp-p 20MHz bandwidth, using recommended output capacitors IO = 80A, VID = 1.4V VIN present: enable to 90% VOUT 560F, 4V alum poly 10F, 1206 X7R ceramic 0 83 8.4 80 85 50 8 25 DESCRIPTION VRK81B080CU is designed to meet the fast load transients required by AMD 64-bit processors and is fully compliant with the latest AMD64TM processor power specifications. Packaged in a compact design, VRK81B080CU has a height only 1.16" (1.2" total mating height), and is ideal for 1U server applications. High efficiency of 85% at full load for reduced power dissipation to simplify system thermal management. A % mS EA EA GENERAL CHARACTERISTICS Parameter Semiconductor junction temperature Material flammability MTBF Switching frequency Conditions1 Package rated to 150C UL 94V-0 Calculated (RAC PRISM) Per phase MIN. TYP. MAX. 115 Units C 1.303 300 x106 Hrs KHz TEMPERATURE CHARACTERISTICS Parameter Storage temperature range Operating temperature range Conditions1 Non-condensing See derating graph MIN. -40 0 TYP. MAX. 70 60 Units C PROTECTION CHARACTERISTICS Parameter Output overcurrent shutdown Overvoltage Indication, CBOUT Conditions1 Latching VOUT MIN. 85 TYP. MAX. 120 Units A V 2.1 1. VIN = 12VDC, TA = 25C, Airflow = 400LFM unless otherwise noted. 2. Output ripple voltage is specified when measured with recommended capacitance at the output of the converter. www.murata-ps.com Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 1 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter THERMAL DERATING GRAPH VID CODES VID4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VID3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 VID2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 VID1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 VID0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 VOUT 1.550 1.525 1.500 1.475 1.450 1.425 1.400 1.375 1.350 1.325 1.300 1.275 1.250 1.225 1.200 1.175 1.150 1.125 1.100 1.075 1.050 1.025 1.000 0.975 0.950 0.925 0.900 0.875 0.850 0.825 0.800 Shutdown www.murata-ps.com Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 2 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter PART NUMBER CODING PACKAGE SPECIFICATIONS PIN ASSIGNMENT Pin 1 2 3 4 5 6 7 8 9 101 111 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Signal GND GND GND VID4 VID2 VID0 COREFB_H PWRGD ENABLE SmDA SMCL SGND VDD VDD VDD GND GND GND VDD VDD VDD VDD VDD VDD GND GND GND Pin 54 53 52 51 50 49 48 47 461 451 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 Signal +12VIN +12VIN +12VIN VID3 VID1 NC CORERB_L CBOUT ADD 0 ADD 1 VRMPRES_L +5V ALWAYS VDD VDD VDD GND GND GND VDD VDD VDD VDD VDD VDD GND GND GND 1. Optional features. Substitute "NC" if option is not ordered. www.murata-ps.com Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 3 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter PACKAGE SPECIFICATIONS (continued) MECHANICAL DIMENSIONS Recommended Interface Connector Options Typco/Elcon 283-0172-01303 (Solder Tail, Long) 283-0172-02303 (Solder Tail, Short) 284-0202-03003 (Surface Mount) All dimensions in inches 0.03 (mm 0.25mm). Weight: 2.08oz (59g) USA: Canada: UK: France: Germany: Japan: China: Singapore: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 and 14001 REGISTERED 01/19/09 Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc. www.murata-ps.com ODC_VRK81B080CU.1 Page 4 of 4 |
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