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| DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Features High output 10A 3.3V 10%, 5V 10% Input Regulation 0.4% line and load Industry standard pin configuration High efficiency to 90% Remote Sense, Trim and Enable Short Circuit protection MTBF 2.9 million hours Can Source and Sink Output Current This product is not fuse protected. User is responsible for providing system protection. Consult factory for application information. Specifications * Input Specifications Input voltage range External input capacitor Output Specifications Standard output voltages 0.8V 0.9V 1.2V 1.5V 1.8V 2.1V 2.5V Output current Load regulation Line regulation External output capacitor Short circuit protection General Specifications Enable *** Efficiency Isolation Switching frequency Approvals and Standards Protection Operating Temperature **** Storage Temperature Weight MTBF ON-open or low / OFF-high (max 15V) 90% typical Non-isolated 300kHz UL 94V-0 Fusing -40C to 70C -40C to 85C 0.3 oz (8.5 gm) 3.8 million hours See efficiency curves on pg 4 Fixed Unit is not fused. 200 LFM at 70C (see also derating curves) Non-condensing Per RAC PRISM at 50C ambient and 200 LFM 10A 1.0V 1.2V 1.5V 1.8V 2.1V 2.5V 3.3V 10A Standard setpoint accuracy varies from 1.5% at the low end of the output voltage range, to 3% at the high end. (see chart on pg 2) Contact factory for tighter tolerances. See note on pg 7 for trimming to different voltages. 200 LFM at 70C (see also derating curves) 0 to 10A load Over specified input voltage range See also note on pg 8 3.3V 10%* 5.0V 10% Minimum 500 F with adequate ripple current rating Measured at +Vin pin See also note on pg 8 and charts on pg 6 S111-03 S111-05 0.5% 0.5% >150F with maxESR = 100m 13A (at 70C) to 20A (at -40C) * All specifications are typical at nominal input, full load at 25C unless otherwise stated. *** Pull below 0.4V and sink greater than 50 A or leave open to enable the SIP; pull above 2V (do not exceed 15V) and source greater than 150 A to disable the SIP. **** The output capacitors must meet the max ESR = 100 m requirement over the operating temperature range. 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 1 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Part Number Designations S111 - 0 5 2 0 X Y Z - B B Model Number Input Voltage 03 = 3.3V 05 = 5V Mechanical Options 2 = Vertical Top Side Pins (Standard) Consult Factory for Other Options Pin Length B = .145 inch (Standard) Consult Factory for Other Options Feature Options* B = Remote Sense, Trim and Enable (Standard) Consult Factory for Other Options Output Voltage XYZ = X.YZ Volts Set Point Tolerance 0 = Factory Standard (See Initial Setpoint Tolerances) * Pin present only on selected features. Initial Setpoint Tolerances Initial setpoint tolerance for 3.3V input SIP's Initial setpoint tolerance for 5V input SIP's Output Voltage (V) Output Voltage (V) Pin Assignments* CONNECTOR PIN 1 2 J1 3* 4 5 FUNCTION VOUT VOUT Remote Sense (Empty Optional) VOUT Ground J2 CONNECTOR PIN 1 2 3 4 5 6 FUNCTION Ground VIN VIN Empty Trim Enable * Pin present only when feature is selected. 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 2 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Outline Drawings 2.55 (64.8) MAX 2.430 .50 (12.7) MAX .540 (13.72) MAX 12345 Topside J1 J2 123 56 Pin Length .155 MIN Option .02 ( .5) NOTE 3 .100 (2.54) TYP 1.800 (45.72) 1.400 (35.56) 1.800 (45.72) .28 (7.1) .025 X .025 (0.64 X 0.64) S111-03 Mechanical Options 2 .435 MAX .255 MAX .110 MAX S111-05 Mechanical Options 2 .390 MAX .245 MAX .072 MAX .03 .03 Mech Option #2 (Standard) .03 .03 Mech Option #2 (Standard) 1. Dimensions are in inches and (millimeters). 2. Tolerances: (unless otherwise noted) Inches .XX .020 .XXX .010 Pin: .002 Millimeters .X 0.5 .XX 0.25 0.05 3. Pin is present only if feature is selected. * Recommended Customer Hole Size 0.046 .003 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 3 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Efficiency Curves at 25C 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 4 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Derating Curves No derating needed at 70C with 200 LFM airflow or higher. * * Extended operation at greater than rated current may degrade reliability. 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 5 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Ripple Current Approximate ripple current ratings required for input bulk capacitor 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 6 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Resistor Trim Equations N O T E: For best results, the trim m ing range should not exceed +/-20% of the initial output voltage set by the factory (Vset). T o trim down to 0.6V, units with an initial output voltage of up to 1.2V can be used. * Trim m ing U P-- raising the output voltage using a resistor from Trim to G round. 3.3Vin 5Vin Rtrim = 1992 (Vout - Vset ) Rtrim = - 500 x (1 + Vset - Vout ) (Vset - Vout ) Vout max = 2.5V * Vout max = Vset + 1 as R trim approaches 0 . Trim m ing D O W N -- lowering the output voltage using a resistor from T rim to an external voltage reference or to the Vout pins. 3.3Vin 5Vin Rtrim = 498 x Vout min = 0.5V ( 4 - 5 x Vref ) (Vout - Vset ) Rtrim = - 500 x (- 1 - Vset + Vout + Vref ) (- Vset + Vout ) Vout min = Vset - (Vref -1) as R trim approaches 0 . W here: Vout is the desired output voltage. Vset is the output voltage setpoint (output voltage without trim ). Vref is the reference voltage for the trim resistor when trim m ing down. If using Vout for this purpose, then Vref = Vout. R trim is the resistance value of the trim resistor (ohm s). 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 7 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A External Capacitance for SIP Products All SIP products require external capacitance to be placed on the system board that the SIP will be designed into. This application note is an attem pt to explain how to translate datasheet inform ation and apply it to a system level board design. Input Capacitance Although input capacitance value is not critical, the input capacitors m ust be capable of storing fairly large am ounts of energy. This m eans, for exam ple, sm all ceram ic capacitors would be inappropriate. The prim ary criteria, though, for choosing the input capacitors is AC ripple current rating. The SIP datasheet contains a chart showing ripple current vs. output current (or output power). The system designer determ ines the m axim um SIP output current required from the SIP. Based on that num ber, the chart will show a corresponding ripple current rating the designer needs to plan for when choosing input capacitors. Exam ple using SIP S111-03 for 1.2 V output: The designer knows the S111 output current will be m axim um 8 A in his application. The ripple current chart (3.3V input) shows a 5 A rating required for the input capacitor. Also known is that the capacitor the designer hopes to use has a ripple current rating of 3A. Therefore, the designer m ust use two of the chosen capacitors in parallel for a total ripple current capability of 6A. This will adequately cover the 5 A need. Output Capacitance The only requirem ent for capacitance value is for basic circuit stability of the SIP. That value is specified on the SIP datasheet-- usually 150F. The other consideration for the output capacitor is the total ESR (Equivalent Series Resistance). As with ripple current, every capacitor has a specified ESR. W hen using m ultiple capacitors in parallel, this ESR is added exactly like parallel resistors. Therefore, m ore capacitors m ean less ESR. The SIP datasheet specifies a m axim um total ESR necessary for optim um SIP perform ance. The designer m ay also choose to add m ore capacitance to reduce output ripple and noise. Exam ple: The datasheet specifies a m axim um ESR of 100m for output capacitance. The system designer wants to use a capacitor with a specified ESR of 130m . Since 130m is m ore than the needed 100m , two capacitors m ust be used in parallel for a total effective ESR of 65m . Generally, good, low ESR bulk capacitors are recom m ended for both input and output capacitance so that fewer capacitors are needed since board real estate is usually an im portant factor in today's designs. 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 8 of 9 DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V - 1.85Vout @ 60A 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A Impact on Output Voltage Ripple and Transient Response If the custom er's application req uires a very low output voltage ripple and / or very low output voltage overshoot / undershoot during transients, then the guidelines previously show n need to be exceeded and good layout practices becom e m andatory. B y using four 330 F O S C O N capacitors, each having E S R = 17 m , the output voltage ripple can be decreased to 50 m V pk-pk on a 1.2V output S IP . A lso during a transient load condition (load current steps from 20% to 100% and back, at 2 A / sec) the output voltage does not overshoot / undershoot m ore than 100m V. W hen fast and deep transient loads are expected, the input capacitor becom es im portant as w ell, especially if the SIP is far from its input voltage source. C apacitors having as m uch as 2000 F and com bined E SR lower than 20 m m ight be needed. P ractical results heavily depend on physical layout and specific load conditions. For critical applications the custom er is encouraged to consult with the m anufacturer. C&D Technologies, Inc. reserves the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. Please check with your supplier or visit our website to ensure that you have the current and complete specification for your product before use. (c) C&D Technologies, Inc. 2004 No part of this publication may be copied, transmitted, or stored in a retrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies, Inc. Instructions for use are available from: www.cdtechno-cps.com 1150 Eglinton Avenue East Toronto, Ontario M3C 1H7 1-866-740-1232 S111_084-S111-00_RevG_Jan18-2005.fm www.cdtechno-cps.com 4607 S.E. International Way Milwaukie, Oregon 97222 1-971-206-2800 9 of 9 |
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