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data sheet january 14, 2011 naos raptor 40a non-isolated power modules 5 ? 13.8vdc input; 0.6vdc to 5.0 vdc output; 40a output current * ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. ? vde is a trademark of verband deutscher elektrotechniker e.v. ** iso is a registered trademark of the international organization of standards document no: ds06-128 ver. 1.14 pdf name: nsr040a0x_ds.pdf features ? compliant to rohs eu directive 2002/95/ec (z versions) ? compatible in a pb-free or snpb wave-soldering environment (z versions) ? wide input voltage range (5vdc-13.8vdc) ? output voltage programmable from 0.6vdc to 5.0vdc via external resistor ? tunable loop tm to optimize dynamic output voltage response ? fixed switching frequency ? output overcurrent protection (non-latching) ? over temperature protection ? remote on/off ? remote sense ? power good signal ? over voltage protection ? hiccup mode ? small size: 36.8 mm x 27.9 mm x 10.7 mm (1.45 in. x 1.10 in. x 0.42 in) ? wide operating temperature range (0c to 70c) ? ul * 60950 recognized, csa ? c22.2 no. 60950-00 certified, and vde ? 0805 (en60950-1 3 rd edition) licensed ? iso** 9001 and iso 14001 certified manufacturing facilitiesiso** 9001 and iso 14001 certified manufacturing facilities applications ? distributed power architectures ? intermediate bus voltage applications ? telecommunications equipment ? servers and storage applications ? networking equipment description the naos raptor 40a sip power modules are non-isolated dc-dc converters in an industry standard package that can deliver up to 40a of output current with a full load efficiency of 92% at 3.3vdc output voltage (v in = 12vdc). these modules operate over a wide range of input voltage (v in = 5vdc-13.8vdc) and provide a precisely regulated output voltage from 0.6dc to 5.0vdc, programmable via an external resistor. features include remote on/off, adjustable output voltage, over current and over temperature protection. a new feature, the tunable loop tm , allows the user to optimize the dynamic response of the converter to match the load. rohs compliant
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. parameter device symbol min max unit input voltage continuous all v in -0.3 15 vdc operating ambient temperature all t a 0 70 c (see thermal considerations section) storage temperature all t stg -55 125 c electrical specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. parameter device symbol min typ max unit operating input voltage all v in 5 13.8 vdc maximum input current all i in,max 30 adc (v in = v in, min to v in, max , i o =i o, max v o,set = 3.3vdc) input no load current v o,set = 0.6 vdc i in,no load 165 ma (v in = 12vdc, i o = 0, module on) v o,set = 5.0vdc i in,no load 360 ma input stand-by current all i in,stand-by 23 ma (v in = 12vdc, module disabled) inrush transient all i 2 t 1 a 2 s input reflected ripple current, peak-to-peak (5hz to 20mhz, 1 h source impedance; v in, min to v in, max, i o = i omax ; see test configuration section) all 130 map-p input ripple rejection (120hz) all 50 db caution: this power module is not internally fused. an input line fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. to preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. the safety agencies require a fast- acting fuse with a maximum rating of 30a (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. refer to the fuse manufacturer?s data sheet for further information.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 3 electrical specifications (continued) parameter device symbol min typ max unit output voltage set-point (v in = in, min , i o =i o, max , t a =25c) v o, set 1.2vdc all v o, set ?0.8 ? +0.8 % v o, set v o, set < 1.2vdc all v o, set ?10 ? +10 mv output voltage all v o, set ?1.1% ? +1.1% % v o, set (over all operating input voltage, resistive load, and temperature conditions until end of life) adjustment range all v o 0.6 5.0 vdc selected by an external resistor output regulation (for v o 2.5v) input range1 (5v ? 9v); range2 (9v ? 13.8v) line (range1, range2) all ? 0.3 % v o, set load (i o =i o, min to i o, max ) all ? 0.6 % v o, set line & load all ? 0.8 % v o, set output regulation (for v o < 2.5v) input range1 (5v ? 9v); range2 (9v ? 13.8v) line (range1, range2) all ? 9 mv load (i o =i o, min to i o, max ) all ? 12 mv line & load all ? 15 mv output ripple and noise on nominal output (v in =v in, nom and i o =i o, min to i o, max , cout = 0 f) peak-to-peak (5hz to 20mhz bandwidth) v o = 0.6v ? 30 mv pk-pk peak-to-peak (5hz to 20mhz bandwidth) v o = 1v ? 30 mv pk-pk peak-to-peak (5hz to 20mhz bandwidth) v o = 1.5v ? 40 mv pk-pk peak-to-peak (5hz to 20mhz bandwidth) v o = 2.5v ? 40 mv pk-pk peak-to-peak (5hz to 20mhz bandwidth) v o = 3.3v ? 60 mv pk-pk peak-to-peak (5hz to 20mhz bandwidth) v o = 5.0v ? 60 mv pk-pk external capacitance 1` without the tunable loop tm esr 1 m ? all c o, max ? 1000 f with the tunable loop tm esr 0.15 m ? all c o, max ? 1500 f esr 10 m ? all c o, max ? 10000 f output current all i o 0 ? 40 adc output current limit inception (hiccup mode ) all i o, lim 103 130 180 % i o output short-circuit current all i o, s/c ? 5.7 ? arms (v o 250mv) ( hiccup mode ) efficiency v o,set = 0.6vdc 70.9 % v in = v in, nom , t a =25c v o,set = 1.2vdc 82.3 % i o =i o, max , v o = v o,set v o,set = 1.8vdc 86.8 % v o,set = 2.5vdc 89.5 % v o,set = 3.3vdc 91.4 % v o,set = 5.0vdc 93.7 % switching frequency all f sw ? 500 ? khz 1 external capacitors may require using the new tunable loop tm feature to ensure that the module is stable as well as getting the best transient response. see the tunable loop tm section for details.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0v dc output; 40a output current lineage power 4 general specifications parameter min typ max unit calculated mtbf (v in =12v, v o =5vdc, i o =0.8i o, max , t a =40c) per telcordia issue 2 method 1 case 3 4,107,921 hours weight ? 17.5 (0.617) ? g (oz.) feature specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. see feature descriptions for additional information. parameter device symbol min typ max unit on/off signal interface (v in =v in, min to v in, max ; open collector or equivalent, signal referenced to gnd) logic high (on/off pin open ? module on) input high current all i ih 0.5 ? 3.3 ma input high voltage all v ih 1.0 ? 5.5 v logic low (module off) input low current all i il ? ? 200 a input low voltage all v il -0.3 ? 0.4 v pwgood (power good) signal interface open collector/drain pwgood = high = power good pwgood = low = power not good logic level low voltage 0 0.4 v logic level high voltage 2.4 5.25 v sink current, pwgood = low 4 ma turn-on delay and rise times (v in =v in, nom , i o =i o, max , v o to within 1% of steady state) case 1: on/off input is enabled and then input power is applied (delay from instant at which v in = v in, min until v o = 10% of v o, set ) all tdelay 3 msec case 2: input power is applied for at least one second and then the on/off input is enabled (delay from instant at which on/off is enabled until v o = 10% of v o, set ) all tdelay 1.2 msec output voltage rise time (time for v o to rise from 10% of vo, set to 90% of vo, set) all trise 3 msec output voltage overshoot i o = i o, max ; v in, min ? v in, max , t a = 25 o c 0.5 % v o, set remote sense range all ? ? 0.5 v over temperature protection all t ref 127 oc (see thermal considerations section) input undervoltage lockout turn-on threshold all 4.4 4.8 vdc turn-off threshold all 4.2 vdc overvoltage protection (hiccup mode) all 120 125 130 v o, set, %
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 5 characteristic curves the following figures provide typical characteristics for the naos raptor 40a modules at 0.6vout and 25oc. efficiency, (%) 60 65 70 75 80 85 010203040 vin = 5v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 1. converter efficiency versus output current. figure 2. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 3. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 4. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (200mv/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (200mv/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 5. typical start-up using on/off voltage (i o = i o,max ). figure 6. typical start-up using input voltage (v in = 9v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5. 0vdc output; 40a output current lineage power 6 characteristic curves (continued) the following figures provide typical characteristics for the naos raptor 40a modules at 1.2vout and 25oc. efficiency, (%) 65 70 75 80 85 90 95 0 10203040 vin = 5v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 7. converter efficiency versus output current. figure 8. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 9. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 10. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (500mv/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (500mv/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 11. typical start-up using on/off voltage (i o = i o,max ). figure 12. typical start-up using input voltage (v in = 12v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 7 characteristic curves (continued) the following figures provide typical characteristics for the naos raptor 40a modules at 1.8vout and at 25oc. efficiency, (%) 70 75 80 85 90 95 0 10203040 vin = 5v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 ` nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 13. converter efficiency versus output current. figure 14. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 15. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 16. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (1v/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (1v/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 17. typical start-up using on/off voltage (i o = i o,max ). figure 18. typical start-up using input voltage (v in = 12v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5. 0vdc output; 40a output current lineage power 8 characteristic curves (continued) the following figures provide thermal derating curves for naos raptor 40a modules at 2.5vout and 25oc. efficiency, (%) 70 75 80 85 90 95 100 0 10203040 vin = 5v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 19. converter efficiency versus output current. figure 20. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 21. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 22. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (1v/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (1v/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 23. typical start-up using on/off voltage (i o = i o,max ). figure 24. typical start-up using input voltage (v in = 12v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 9 characteristic curves (continued) the following figures provide thermal derating curves for naos raptor 40a modules at 3.3vout and 25oc. efficiency, (%) 70 75 80 85 90 95 100 010203040 vin = 7v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 25. converter efficiency versus output current. figure 26. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 27. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 28. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (1v/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (1v/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 29. typical start-up using on/off voltage (i o = i o,max ). figure 30. typical start-up using input voltage (v in = 12v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0v dc output; 40a output current lineage power 10 characteristic curves (continued) the following figures provide thermal derating curves for naos raptor 40a modules at 5vout and 25oc. efficiency, (%) 70 75 80 85 90 95 100 010203040 vin = 9v vin = 12v vin = 14v output current, io (a) 10 15 20 25 30 35 40 45 25 30 35 40 45 50 55 60 65 70 nc 0.5m/s (100lfm) 1m/s (200lfm) 1.5m/s (300lfm) 2m/s (400lfm) output current, i o (a) ambient temperature, t a o c figure 31. converter efficiency versus output current. figure 32. derating output current versus ambient temperature and airflow. output voltage v o (v) (20mv/div) output current , output voltage i o (a) (10adiv) v o (v) (200mv/div) time, t (1 s/div) time, t (40 s /div) figure 33. typical output ripple and noise (v in = 12v, i o = i o,max ). figure 34. transient response to dynamic load change from 0% to 50% to 0% with v in =12v. output voltage on/off voltage v o (v) (2v/div) v on/off (v) (2v/div) output voltage input voltage v o (v) (2v/div) v in (v) (5v/div) time, t (1ms/div) time, t (1ms/div) figure 35. typical start-up using on/off voltage (i o = i o,max ). figure 36. typical start-up using input voltage (v in = 12v, i o = i o,max ).
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 11 test configurations to oscilloscope current probe l test 1 h battery c s 1000 f electrolytic e.s.r.<0.1 @ 20c 100khz 2x100 f tantalum v in (+) com note: measure input reflected ripple current with a simulated source inductance (l test ) of 1 h. capacitor c s offsets possible battery impedance. measure current as shown above. c in figure 37. input reflected ripple current test setup. note: all voltage measurements to be taken at the module terminals, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. v o (+) com 1uf . resistive load scope copper strip ground plane 10uf figure 38. output ripple and noise test setup. v o com v in (+) com r load r contact r distribution r contact r distribution r contact r contact r distribution r distribution v in v o note: all voltage measurements to be taken at the module terminals, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. figure 39. output voltage and efficiency test setup. = v o . i o v in . i in x 100 % efficiency design considerations input filtering the naos raptor 40a module should be connected to a low-impedance source. a highly inductive source can affect the stability of the module. an input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. to minimize input voltage ripple, low-esr ceramic capacitors are recommended at the input of the module. figure 40 shows the input ripple voltage for various output voltages at 40a of load current with 1x22 f or 2x22 f ceramic capacitors and an input of 12v. input ripple voltage (mvp-p) 0 50 100 150 200 250 300 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 1x22uf 2x22uf output voltage (vdc) figure 40. input ripple voltage for various output voltages with 1x22 f or 2x22 f ceramic capacitors at the input (40a load). input voltage is 12v. output filtering the naos raptor 40a modules are designed for low output ripple voltage and will meet the maximum output ripple specification with no external capacitors. however, additional output filtering may be required by the system designer for a number of reasons. first, there may be a need to further reduce the output ripple and noise of the module. second, the dynamic response characteristics may need to be customized to a particular load step change. to reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. low esr ceramic and polymer are recommended to improve the dynamic response of the module. for stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. optimal performance of the module can be achieved by using the tunable loop tm feature described later in this data sheet.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 12 safety considerations for safety agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards, i.e., ul 60950-1, csa c22.2 no. 60950-1- 03, and vde 0850:2001-12 (en60950-1) licensed. for the converter output to be considered meeting the requirements of safety extra-low voltage (selv), the input must meet selv requirements. the power module has extra-low voltage (elv) outputs when all inputs are elv. the input to these units is to be provided with a fast- acting fuse with a maximum rating of 30a in the positive input lead . feature descriptions remote on/off the naos raptor 40a power modules feature a remote on/off capability with positive logic. if not using the on/off pin, leave the pin open (the module will be on. the on/off signal (v on/off ) is referenced to ground. during a logic high on the on/off pin, the module remains on. during logic-lo w, the module is turned off. 100k gnd enable on/off 5v mod u l e 2k 47k 2.2k 47k 2k 2.2k figure 41. remote on/off implementation. overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. at the point of current-limit inception, the unit enters hiccup mode. the unit operates normally once the output current is brought back into its specified range. the typical average output current during hiccup is 10% of i o,max . over temperature protection to provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. the unit will shut down if the overtemperature threshold of 127oc is exceeded at the thermal reference point t red . the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. once the unit goes into thermal shutdown, it will then wait to cool before attempting to restart. input undervoltage lockout at input voltages below the input undervoltage lockout limit, module operation is disabled. the module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 13 power good the naos raptor 40a power modules provide a power good status signal that indicates whether or not the power module is functioning properly. pwgood is a power good signal implemented with an open-collector output to indicate that the output voltage is within the regulation limits of the power module. the pwgood signal will be de-asserted to a low state if any condition such as over-current, or over-voltage occurs which would result in the output voltage going out of range. output voltage programming the output voltage of the naos raptor 40a module can be programmed to any voltage from 0.6vdc to 5.0vdc by connecting a resistor between the trim + and trim - pins of the module. certain restrictions apply on the output voltage set point depending on the input voltage. these are shown in the output voltage vs. input voltage set point area plot in fig. 43. the lower limit curve shows that for output voltages of 2.75v and higher, the input needs to be larger than the minimum of 4.5v. v o (+) trim+ gnd r trim load v in (+) on/off vout trim ? figure 42. circuit configuration for programming output voltage using an external resistor. 0 2 4 6 8 10 12 14 16 0.511.522.533.544.55 output voltage (v) input voltage (v) fig. 43. output voltage vs. input voltage set point area plot showing limits where the output voltage can be set for different input voltages. without an external resistor between trim + and trim - pins, the output of the module will be 0.6vdc. to calculate the value of the trim resistor, rtrim for a desired output voltage, use the following equation: ? = k vo rtrim ) 6 . 0 ( 2 . 1 rtrim is the external resistor in k ? vo is the desired output voltage table 1 provides rtrim values required for some common output voltages. by using a 0.1% tolerance trim resistor with a tc of 25ppm, a set point tolerance of 0.8% can be achieved as specified in the electrical specification. the pol programming tool available at www.lineagepower.com under the design tools section, helps determine the required trim resistor needed for a specific output voltage. note: vin 180% of vout at the module output pin. table 1 v o, set (v) rtrim ( ? ) 0.6 open 1.0 3000 1.2 2000 1.5 1333 1.8 1000 2.5 632 3.3 444 5.0 273 monotonic start-up and shutdown the naos raptor 40a modules have monotonic start- up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 14 feature descriptions (continued) tunable loop tm the naos raptor 40a modules have a new feature that optimizes transient response of the module called tunable loop tm . external capacitors are usually added to improve output voltage transient response due to load current changes. sensitive loads may also require additional output capacitance to reduce output ripple and noise. adding external capacitance however affects the voltage control loop of the module, typically causing the loop to slow down with sluggish response. larger values of external capacitance could also cause the module to become unstable. to use the additional external capacitors in an optimal manner, the tunable loop tm feature allows the loop to be tuned externally by connecting a series r-c between the sense and trim pins of the module, as shown in fig. 44. this r-c allows the user to externally adjust the voltage loop feedback compensation of the module to match the filter network connected to the output of the module. recommended values of r tune and c tune are given in tables 2 and 3. table 2 lists recommended values of r tune and c tune in order to meet 2% output voltage deviation limits for some common output voltages in the presence of a 20a to 40a step change (50% of full load), with an input voltage of 12v. table 3 shows the recommended values of r tune and c tune for different values of ceramic output capacitors up to 1500uf, again for an input voltage of 12v. the value of r tune should never be lower than the values shown in tables 2 and 3. please contact your lineage power technical representative to obtain more details of this feature as well as for guidelines on how to select the right value of external r-c to tune the module for best transient performance and stable operation for other output capacitance values. sense+ module trim+ vout rtune trim- ctune rtrim figure. 44. circuit diagram showing connection of r tume and c tune to tune the control loop of the module. table 2. recommended values of r tune and c tune to obtain transient deviation of 2% of vout for a 20a step load with vin=12v. vout 5v 3.3v 2.5v 1.8v 1.2v 0.69v cext 6x47 f + 330 f polymer 2x47 f + 3x330 f polymer 4x47 f + 4x330 f polymer 3x47 f + 6x330 f polymer 2x47 f + 10x330 f polymer 2x47 f + 22x330 f polymer r tune 75 62 62 39 39 30 c tune 10nf 18nf 27nf 47nf 68nf 180nf v 100mv 64mv 50mv 36mv 24mv 12mv table 3. general recommended values of of r tune and c tune for vin=12v and various external ceramic capacitor combinations. cext 2x47 f 4x47 f 10x47 f 20x47 f 30x47 f r tune 75 75 39 33 30 c tune 3300pf 4700pf 8.2nf 12nf 18nf
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 15 thermal considerations power modules operate in a variety of thermal environments; however sufficient cooling should always be provided to help ensure reliable operation. considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. a reduction in the operating temperature of the module will result in an increase in reliability. the thermal data presented here is based on physical measurements taken in a wind tunnel. the test set- up is shown in figure 45. the derating data applies to airflow in either direction of the module?s axis. the thermal reference point, t ref used in the specifications are shown in figure 46. for reliable operation this temperature should not exceed 122 o c. the output power of the module should not exceed the rated power of the module (vo,set x io,max). please refer to the application note ?thermal characterization process for open-frame board- mounted power modules? for a detailed discussion of thermal aspects including maximum device temperatures. heat transfer via convection increased airflow over the module enhances the heat transfer via convection. thermal derating curves showing the maximum output current that can be delivered at different local ambient temperatures (t a ) for airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the characteristics curves section. figure 46. temperature measurement location t ref . post solder cleaning and drying considerations post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. the result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. for guidance on appropriate soldering, cleaning and drying procedures, refer to the board mounted power modules: soldering and cleaning application note. through-hole lead-free soldering information the rohs-compliant through-hole products use the sac (sn/ag/cu) pb-free solder and rohs-compliant components. they are designed to be processed through single or dual wave soldering machines. the pins have an rohs-compliant finish that is compatible with both pb and pb-free wave soldering processes. a maximum preheat rate of 3 c/s is suggested. the wave preheat process should be such that the temperature of the power module board is kept below 210 c. for pb solder, the recommended pot temperature is 260 c, while the pb-free solder pot is 270 c max. not all rohs-compliant through-hole products can be processed with paste-through-hole pb or pb-free reflow process. if additional information is needed, please consult with your lineage power technical representative for more detail. air flow power module wind tunnel pwbs 7.2 4 [0.285] 76. 2 [3.0] probe location for measuring airflow and ambient tem p erature 50. 8 [2.00] figure 45. thermal test set-up.
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 16 mechanical outline dimensions are in inches and (millimeters). tolerances: x.xx in. 0.02 in. (x.x mm 0.5 mm) [unless otherwise indicated] x.xxx in 0.010 in. (x.xx mm 0.25 mm) pin function pin function 1 vout 8 trim + 2 vout 9 pwgood 3 vout 10 sense - 4 gnd 11 sense + 5 gnd 12 vin 6 on/off 13 vin 7 trim - 14 gnd 15 gnd pin out front view side view l = 3.3 0.5mm ( 0.13 0.02 in. )
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 17 recommended pad layout dimensions are in millimeters and (inches). tolerances: x.x mm 0.2 mm (x.xx in. 0.01 in.) [unless otherwise indicated] x.xx mm 0.12 mm (x.xxx in 0.005 in.)
data sheet january 14, 2011 naos raptor 40a non isolated power module: 5 ? 13.8vdc input; 0.6vdc to 5.0vdc output; 40a output current lineage power 18 document no: ds06-128 ver. 1.14 pdf name: nsr040a0x_ds.pdf ordering information please contact your lineage power sales representative for pricing, availability and optional features. table 4. device codes device code input voltage range output voltage output current on/off logic connector type comcode NSR040A0X43Z 5 ? 13.8vdc 0.6 ? 5.0vdc 40 a positive sip cc109130928 world wide headquarters lineage power corporation 601 shiloh road, plano, tx 75074, usa +1-888-lineage(546-3243) (outside u.s.a.: +1-972-244-watt(9288) ) www.lineagepower.com e-mail: techsupport1@lineagepower.com asia-pacific headquarters tel: +86.021.54279977*808 europe, middle-east and africa headquarters tel: +49.89.878067-280 india headquarters tel: +91.80.28411633 lineage power reserves the right to make changes to the product(s) or information contained herein without notice. no liability is assumed as a result of their use or a pplication. no rights under any patent accompany the sale of any such product(s) or information. lineage power dc-dc products are protected under various patents. information on these patents is available at www.lineagepower.com/patents . ? 2011 lineage power corporation, (plano, texas) all international rights reserved.

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