VCN60/70 Series www.murata-ps.com High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters DESCRIPTION ESCRIPTIO ON Designed signed to su support upport DDR1 DDR1, 1, DDR2 and DDR3 SDRA SDRAM AM memoryy power requ requirements, uirements, th the he VCN60/70 Series point-of-load, non-isolated DC/DC converters performance N60/70 Ser ries point-of-load, non-is solated DC/D DC converte ers have the high perform mance andd flexibility required by a wide variety varieety of applications applicaations including includding computing computting and office ce equipequ ment, automation ent, telecommunications telecom mmunicationss hardware, industrial au utomation aand nd test equipment. OBSOLETE PRODUCT Last time buy: 04 January 2013 These ese high effificiency (88% % typ.), high current SIP’s SIP’’s feature a programmable programmaable wide output outtput range FPGAs, nge which iss suitable for powering AASICs, SICs, FPGAs s, DSPs andd other typess of ICs. The use of integrated devices VCN60/70 grated ddrivers rivers and sswitching witching de evices allowss the VCN60 0/70 Series ttoo switch at hhigh i frequency, providing high bandwidth and high current density (50A/in3) in a 1U form factor without sacrificing efficiency. SELECTION GUIDE VCN60BADJTU-1C VCN70BADJTU-1C FEATURES Supports Double Data Rate SDRAM specifications DDR1, 2, 3 and similar requirements Programmable output voltage Soft start circuit Over-voltage protection Over-current protection Order Code Nominal Input Voltage (V) Output Current (A) Output Voltage Mounting Type Form Factor VCN60BADJTU-1C 12 60 Adjustable Thru-hole 1U VCN70BADJTU-1C 12 70 Adjustable Thru-hole 1U TYP. 12 9.7 8.7 12 Units INPUT CHARACTERISTICS Parameter Input voltage operating range Turn ON threshold Turn OFF threshold Maximum input current No-load input current Disabled input current Conditions MIN. 10.2 VIN rising VIN falling 1.80VOUT @ 70A/12VIN 1.80VOUT MAX. 13.2 Vdc A 330 50 Input reflected ripple current 1.80VOUT @ 70A/13.2Vin Recommended External Input Capacitance1 OSCON type or equivalent 100 mA mA RMS Over-temperature protection Differential remote sense 270 μF Power good signal Output enable OUTPUT CHARACTERISTICS Parameter Voltage set point Line regulation Load regulation Initial setpoint accuracy Ripple & noise Current operating range Efficiency @ 60Amp Load Turn-on time High efficiency “1U” height Pre-bias turn on Fused input Conditions Programmable 1.2VOUT 1.2VOUT 0.1% trim resistor @ 1.2V 20MHz bandwidth 140W max output 100% load 12VIN, 1.8VOUT MIN. 0.6 0.5 25 0 For full details go to www.murata-ps.com/rohs MAX. 3.5 +/– 0.1 +/– 0.2 +/– 1.0 70 88 10 Remote sense compensation TYP. 10 Required External Output Capacitance2 Setpoint dependent Transient Response3 1A / μS 0.5A / μS 560 Units V % mV p-p A % mS %Vo nom μF +/– 3 +/– 2 % 1. No capacitor needed for Input Ripple Current capability. The voltage rating on the external caps should be twice the expected maximum working voltage. 2. Characterized with low ESR output capacitors, such as United Chemi-Con 4PS560MH11, Fujitsu FP4R0RE561M-S1R, Sanyo OSCON 4SP560M. Setpoints of 1V and lower require three capacitors, with a maximum of 4000μF. Setpoints of 1.2V and 1.5V require two capacitors, with a maximum of 4000μF. Setpoints of 1.8V and higher require one capacitor, with the maximum allowed capacitance of 4000μF up to 2V and 2300μF maximum at above 2V. The voltage rating on the external caps should be twice the expected maximum working voltage. 3. Load steps from 30-60A for 1.8V and lower set points. 20–40A for 2.5V and 3.3V setpoints. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 1 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters GENERAL CHARACTERISTICS Parameter Enable input Power good input Storage temperature Operating temperature Material flammability MTBF Switching frequency Dimensions5 4 5 Conditions LOW = disable HIGH = enable LOW = fault (Imax = 4mA) MIN. TYP. MAX. 0.8 6.0 0.4 1.7 HIGH = good (open drain with ESD clamp) Units Vdc 5.3 –40 0 70 70 ºC UL 94V-0 Calculated (RAC PRISM4 @ 40ºC 1.8V @ 50A) x106 Hrs 4.3 Per phase 450 VCN60 2.4"L x 0.375"W x 1.25"H (60.96 mm x 9.525 mm x 31.75 mm) VCN70 2.4"L x 0.660"W x 1.25"H (60.96 mm x 16.764 mm x 31.75 mm) KHz PRISM is a standard for MTBF prediction and system reliability analysis, originally developed by the Reliability Analysis Center (RAC). Width is a maximum dimension. PROTECTION CHARACTERISTICS Parameter Conditions Output current limit Hiccup mode Overvoltage shutdown Latching Input fusing MIN. TYP. 95 116 20 MAX. Units A %VNOM A NOTES VIN = 12Vdc, TA = 25°C, Airflow = 400LFM unless otherwise noted. Specifications subject to change without notice. OUTPUT VOLTAGE SETPOINT ADJUSTMENT The following relationship establishes the calculation of external resistors: RADJ (kΩ) = 1.2 (VOUT − 0.6) For VOUT setting an external resistor is connected between the RTRIM pin and – Sense pin. Typical Efficiency Curve (12VIN, 25˚C) 95 Efficiency (%) 90 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.6V 85 80 75 70 5 15 25 35 45 55 65 75 Load Current (Amps) www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 2 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters Thermal Derating Curves for the 60 Amp rated VCN60BADJTU-1C Maximum Current Thermal Derating, VOUT = 2.5V* Maximum Current Thermal Derating, VOUT = 1.2V 65 70 Airflow 65 200 LFM 300 LFM 60 400 LFM 55 500 LFM Output Current (Amps) Output Current (Amps) 75 50 60 Airflow 200 LFM 55 300 LFM 400 LFM 50 500 LFM 45 40 45 25 30 35 40 45 50 55 60 25 65 30 40 45 50 55 60 65 Ambient Temperature (ºC) Ambient Temperature (ºC) Maximum Current Thermal Derating, VOUT = 3.3V* Maximum Current Thermal Derating, VOUT = 1.5V 50 70 Airflow 65 200 LFM 60 300 LFM 400 LFM 55 500 LFM 50 Output Current (Amps) 75 Output Current (Amps) 35 47.5 Airflow 45 200 LFM 300 LFM 42.5 400 LFM 40 500 LFM 37.5 35 45 25 30 35 40 45 50 55 60 25 65 30 35 40 45 50 55 Ambient Temperature (ºC) 60 65 Ambient Temperature (ºC) Maximum Current Thermal Derating, VOUT = 1.8V The table shows the appropriate derated output current for running the unit at 70°C ambient temberature and respective airflows. Output Current (Amps) 75 70 Airflow 65 VCN60BADJTU-1C DERATED OUTPUT CURRENT (AMPS) AT 70°C AMBIENT 200 LFM 1.2V 1.5V 1.8V 2.5V* 3.3V* 300LFM 49.6 47.3 46.0 40.5 37.5 400LFM 52.0 50.3 49.0 43.5 40.5 500LFM 55.0 53.0 51.3 47.0 43.3 300 LFM 60 400 LFM 55 500 LFM 50 45 25 30 35 40 45 50 55 60 65 Ambient Temperature (ºC) * IOutput loads in excess of ~140W are possible at higher VOUT settings (>2V), if proper Thermal Derating is maintained, and if VIN is high enough to limit input current to below 15A in the 20A rated on board input fuse. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 3 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters Thermal Derating Curves for the 70 Amp rated VCN70BADJTU-1C Maximum Current Thermal Derating, VOUT = 2.5V* Maximum Current Thermal Derating, VOUT = 1.2V 65 Airflow 75 200 LFM 300 LFM 400 LFM 70 500 LFM Output Current (Amps) Output Current (Amps) 80 Airflow 60 200 LFM 300 LFM 400 LFM 55 500 LFM 50 65 25 30 35 40 45 50 55 60 25 65 30 Ambient Temperature (ºC) 40 45 50 55 60 65 Maximum Current Thermal Derating, VOUT = 3.3V* Maximum Current Thermal Derating, VOUT = 1.5V 50 75 Airflow 200 LFM 70 300 LFM 400 LFM 500 LFM 65 Output Current (Amps) 80 Output Current (Amps) 35 Ambient Temperature (ºC) Airflow 45 300 LFM 400 LFM 40 35 25 60 25 30 35 40 45 50 55 60 200 LFM 500 LFM 30 35 65 Ambient Temperature (ºC) 40 45 50 55 Ambient Temperature (ºC) 60 65 Note: For the 3.3V model, the maximum output current at 3.3V is 45A due to input current limitations. Maximum Current Thermal Derating, VOUT = 1.8V Output Current (Amps) 80 Airflow 75 200 LFM 300 LFM 70 400 LFM The table shows the appropriate derated output current for running the unit at 70°C ambient temberature and respective airflows. VCN70BADJTU-1C DERATED OUTPUT CURRENT (AMPS) AT 70°C AMBIENT 500 LFM 1.2V 1.5V 1.8V 2.5V* 3.3V* 300LFM 59.6 57.6 57.0 53.6 45.0 400LFM 63.6 62.1 61.1 57.6 45.0 500LFM 67.9 65.6 64.6 61.6 45.0 65 60 25 30 35 40 45 50 55 Ambient Temperature (ºC) 60 65 * IOutput loads in excess of ~140W are possible at higher VOUT settings (>2V), if proper Thermal Derating is maintained, and if VIN is high enough to limit input current to below 15A in the 20A rated on board input fuse. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 4 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters PART NUMBER STRUCTURE VCN 60 B ADJ T Family Name C RoHS-6 compliant Output Current 60 = 60A 70 = 70A Version Input Voltage B = 12VIN Output Voltage ADJ = adustable (0.6V – 3.5V) Pin 1 2 3 4 5 6 7 8 9 10 11 12 U – 1 PIN ASSIGNMENT* Function Pin Trim 13 KEY 14 VSS 15 PWRGD 16 Reserved 17 Reserved 18 Vss 19 Vss 20 OUTEN 21 –SENSE 22 +SENSE 23 12V input 24 Form Factor U = 1U Mounting Type T = Thru-hole Function 12V input 12V input VOUT VOUT Vss Vout Vss VOUT Vss VOUT Vss VOUT * Because of the high currents, connect all identical signals in parallel with adequate PC board etch.Connect the +Sense pin to the VOUT connection at the load. Connect the –Sense pin to the Vss pin at the load. If the Sense pins are not used, connect them to their respective +VOUT and Vss pins at the converter. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 5 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters MECHANICAL SPECIFICATIONS FOR THE VCN60BADJTU-1C 2.40 (60.96) .375 (9.525) Max .100 (2.54) Max .205 (5.207) Max Tolerances are: .x ± .1 .xx ± .03 .xxx ± .010 1.25 (31.75) Pin 1 .05 (1.27) .200 (5.08) Pin 24 .025 (0.63) Sq. Pins .100 (2.54) TYP .200 (5.08) .140 (3.556) .031 (.7874) 23 X Ø .045 .10 (2.54) .237 (6.02)± .030 (.762) 0.475± .030 .100 (2.54) TYP 2.50 (58.42) ISO view for reference only ISO view for reference only Recommended area to be free of components All dimensions are in inches (mm). RoHS COMPLIANCY The VCN60BADJTU-1C and VCN70BADJTU-1C are in compliance with the European Union Directive 2002/95/EC (RoHS) with respect to the following substances: • lead (Pb) • hexavalent chromium • cadmium (Cd) • polybrominated biphenyls (PBB) • mercury (Hg) • polybrominated diphenyl ethers (PBDE) RoHS PROCESS NOTE These products are not intended to go through a reflow solder process. Use wave solder, selective solder or hand solder process with a peak temperature of 260°C for 10 seconds. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 6 of 7 VCN60/70 Series High Efficiency, High Current Density, 60 or 70 Amp Single Inline Package DC/DC Converters MECHANICAL SPECIFICATIONS FOR THE VCN70BADJTU-1C 2.40 (60.96) .660 (16.764) Max .100 (2.54) Max .490 (12.446) Max Tolerances are: .x ± .1 .xx ± .03 .xxx ± .010 1.25 (31.75) Pin 1 .05 (1.27) .200 (5.08) Pin 24 .025 (0.63) Sq. Pins .100 (2.54) TYP .200 (5.08) .10 (2.54) .140 (3.556) .031 (.7874) 23 X Ø .045 .237 (6.02)± .030 (.762) 0.730 (18.542) .100 (2.54) TYP 2.50 (58.42) ISO view for reference only ISO view for reference only Recommended area to be free of components All dimensions are in inches (mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED 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. © 2011 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_VCN60/70 Series.B09 Page 7 of 7