View APXS002A0X-SRDZ_7072473.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ge data sheet february 26, 2013 ?2013 general electric company. all rights reserved. 2a picotlynx tm : non-isolated dc-dc power modules 3vdc ?14vdc input; 0.6vdc to 5.5vdc output; 2a output current . features ? compliant to rohs ii eu ?directive 2011/65/eu? ? compatible in a pb-free or snpb reflow environment (z versions) ? wide input voltage range (3vdc-14vdc) ? output voltage programmable from 0.6vdc to 5.5vdc via external resistor ? tunable loop tm to optimize dynamic output voltage response ? remote sense ? power good signal ? fixed switching frequency ? output overcurrent protection (non-latching) ? overtemperature protection ? remote on/off ? ability to sink and source current ? cost efficient open frame design ? small size: 12.2 mm x 12.2 mm x 6.25mm (0.48 in x 0.48 in x 0.246in) ? wide operating temperature range (-40c to 85c) ? ul * 60950-1recognized, csa ? c22.2 no. 60950-1-03 certified, and vde ? 0805:2001-12 (en60950-1) licensed ? iso** 9001 and iso 14001 certified manufacturing facilities applications ? distributed power architectures ? intermediate bus voltage applications ? telecommunications equipment ? servers and storage applications ? networking equipment ? industrial equipment description the 12v picotlynx tm 2a power modules are non-isolated dc-dc converters that can deliver up to 2a of output current. these modules operate over a wide range of input voltage (v in = 3vdc-14vdc) and provide a precisely regulated output voltage from 0.6vdc to 5.5vdc, programmable via an external resistor. features include remote on/off, adjustable output voltage, over curre nt 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 with reduced amount of output capacitance leading to savings on cost and pwb area. * ul is a registered trademark of underwriters la boratories, 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 # the pmbus name and logo are registered trademarks of the system manage ment interface forum (smif) trim vout sense gnd ctune rtune rtrim vin co cin vin+ vout+ on/off q1 pgood module rohs com p liant
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 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 operat ions sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliabili ty. parameter device symbol min max unit input voltage all v in -0.3 15 vdc continuous operating ambient temperature all t a -40 85 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 3.0 ? 14.0 vdc maximum input current all i in,max 1.8a adc (v in =3v to 14v, i o =i o, max ) input no load current (v in = 12.0vdc, i o = 0, module enabled) v o,set = 0.6 vdc i in,no load 20 ma v o,set = 5.5vdc i in,no load 48 ma input stand-by current (v in = 12.0vdc, module disabled) all i in,stand-by 8 ma 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 = 0 to 14v , i o = i omax ; see test configurations) all 20 map-p input ripple rejection (120hz) all -65 db caution: this power module is no t internally fused. an input li ne fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated 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 rati ng of 4a (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.
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electr ic company. all rights reserved. page 3 electrical specifications (continued) parameter device symbol min typ max unit output voltage set-point (with 0.5% tolerance for external resistor used to set output voltage) all v o, set -1.5 +1.5 % v o, set output voltage (over all operating input voltage, resistive load, and temperature conditions until end of life) all v o, set -2.5 ? +2.5 % v o, set adjustment range (selected by an external resistor) (some output voltages may not be possible depending on the input voltage ? see feature descriptions section) all v o 0.6 5.5 vdc remote sense range all 0.5 vdc output regulation (for v o 2.5vdc) line (v in =v in, min to v in, max ) all ? +0.4 % v o, set load (i o =i o, min to i o, max ) all ? 10 mv output regulation (for v o < 2.5vdc) line (v in =v in, min to v in, max ) all ? 10 mv load (i o =i o, min to i o, max ) all ? 5 mv temperature (t ref =t a, min to t a, max ) all ? 0.4 % v o, set output ripple and noise on nominal output (v in =v in, nom and i o =i o, min to i o, max co = 0.1 f // 10 f ceramic ca p acitors) peak-to-peak (5hz to 20mhz bandwidth) all ? 50 100 mv pk-pk rms (5hz to 20mhz bandwidth) all 20 38 mv rms external capacitance 1 without the tunable loop tm esr 1 m ? all c o 22 ? 47 f with the tunable loop tm esr 0.15 m ? all c o, max 0 ? 1000 f esr 10 m ? all c o, max 0 ? 3000 f output current (in either sink or source mode) all i o 0 2 adc output current limit inception (hiccup mode) (current limit does not operate in sink mode) all i o, lim 180 % i o,max output short-circuit current all i o, s/c 140 ma (v o 250mv) ( hiccup mode ) efficiency v o,set = 0.6vdc 68.7 % v in = 12vdc, t a =25c v o, set = 1.2vdc 80.7 % i o =i o, max , v o = v o,set v o,set = 1.8vdc 85.9 % v o,set = 2.5vdc 89 % v o,set = 3.3vdc 91.1 % v o,set = 5.0vdc 93.6 % switching frequency all f sw ? 600 ? khz 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.
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 4 general specifications parameter device min typ max unit calculated mtbf (i o =0.8i o, max , t a =40c) telecordia issue 2 method 1 case 3 apxs 26,121,938 hours weight ? 0.9(0.0317) ? 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) device code with no suffix ? negative logic (see ordering information) (on/off pin is open collector/drain logic input with external pull-up resistor; signal referenced to gnd) logic high (module off) input high current all i ih ? ? 1 ma input high voltage all v ih 3 ? v in, max vdc logic low (module on) input low current all i il ? ? 10 a input low voltage all v il -0.2 ? 0.3 vdc 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 ? 5 ? 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 von/off is enabled until v o = 10% of v o, set ) all tdelay ? 5.2 ? msec output voltage rise time (time for v o to rise from 10% of vo, set to 90% of vo, set) all trise ? 1.4 ? msec output voltage overshoot (t a = 25 o c 3.0 % v o, set v in = v in, min to v in, max ,i o = i o, min to i o, max ) with or without maximum external capacitance over temperature protection all t ref 140 c (see thermal considerations section)
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electr ic company. all rights reserved. page 5 feature specifications (cont.) parameter device symbol min typ max units input undervoltage lockout turn-on threshold all 2.95 vdc turn-off threshold all 2.8 vdc hysteresis all 0.2 vdc pgood (power good) signal interface open drain, v supply 5vdc overvoltage threshold for pgood 112.5 %v o, set undervoltage threshold for pgood 87.5 %v o, set pulldown resistance of pgood pin all 30 70
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 6 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (0.6v, 2a) at 25 o c. efficiency, (%) 55 60 65 70 75 80 85 0 0.4 0.8 1.2 1.6 2 vin=14v vin=12v vin=3v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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% . output voltage on/off voltage v o (v) (200mv/div) v on/off (v) (5v/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, v in= 12v,cext= 22uf). figure 6. typical start-up using input voltage (v in = 12v, i o = i o,max ).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 7 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (1.2v, 2a) at 25 o c. efficiency, (%) 65 70 75 80 85 90 95 0 0.4 0.8 1.2 1.6 2 vin=14v vin=3v vin=12v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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%. output voltage on/off voltage v o (v) (500mv/div) v on/off (v) (5v/div) output voltage input voltage v o (v) (500mv/div) v in (v) (5v/div) time, t (2ms/div) time, t (2ms/div) figure 11. typical start-up using on/off voltage (i o = i o,max, v in= 12v,cext= 22uf). figure 12. typical start-up using input voltage (v in = 12v, cext= 22uf, i o = i o,max ).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 8 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (1.8v, 2a) at 25 o c. efficiency, (%) 70 75 80 85 90 95 0 0.4 0.8 1.2 1.6 2 vin=14v vin=12v vin=3v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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%. output voltage on/off voltage v o (v) (500mv/div) v on/off (v) (5v/div) output voltage input voltage v o (v) (500mv/div) v in (v) (5v/div) time, t (2ms/div) time, t (2ms/div) figure 17. typical start-up using on/off voltage (i o = i o,max, v in= 12v,cext= 22uf , ). figure 18. typical start-up using input voltage (v in = 12v, cext= 22uf, i o = i o,max ).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 9 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (2.5v, 2a) at 25 o c. efficiency, (%) 70 75 80 85 90 95 100 0 0.4 0.8 1.2 1.6 2 vin=14v vin=12v vin=3.3v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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%. output voltage on/off voltage v o (v) (1v/div) v on/pff (v) (5v/div) output voltage input voltage v o (v) (1v/div) v in (v) (5v/div) time, t (2ms/div) time, t (2ms/div) figure 23. typical start-up using on/off voltage (i o = i o,max, v in= 12v,cext= 22uf ). figure 24. typical start-up using input voltage (v in = 12v, cext= 22 uf, i o = i o,max ).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 10 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (3.3v, 2a) at 25 o c. efficiency, (%) 70 75 80 85 90 95 100 0 0.4 0.8 1.2 1.6 2 vin=14v vin=12v vin=4.5v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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%. output voltage on/off voltage v o (v) (1v/div) v on?off (v) (5v/div) output voltage input voltage v o (v) (1v/div) v in (v) (5v/div) time, t (2ms/div) time, t (2ms/div) figure 29. typical start-up using on/off voltage (i o = i o,max, v in= 12v,cext= 22uf) figure 30. typical start-up using input voltage (v in = 12v, cext= 22 uf, i o = i o,max ).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 11 characteristic curves the following figures provide typical characteristics for the apxs002a0x-srz (5v, 2a) at 25 o c. efficiency, (%) 70 75 80 85 90 95 100 0 0.4 0.8 1.2 1.6 2 vin=14v vin=12v vin=6.5v output current, io (a) 0.0 0.5 1.0 1.5 2.0 2.5 45 55 65 75 85 95 105 nc standard test extended test 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) (10mv/div) output current, output voltage i o (a) (1adiv) v o (v) (100mv/div) time, t (1 s/div) time, t (20 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%. output voltag e on/off voltage v o (v) (2v/div) v on/off (v) (5v/div) output voltage input voltage vo (v) (2v/div) v in (v) (5v/div) time, t (2ms/div) time, t (2ms/div) figure 35. typical start-up using on/off voltage (i o = i o,max, v in= 12v,cext= 22uf). figure 36. typical start-up using input voltage (v in = 12v, i o = i o,max, cext= 22uf).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 12 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. vo+ com 0.1uf resistive load scope u sing bnc socket 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 12v picotlynx tm 2a module should be connected to a low ac-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, ceramic capacitors are recommended at the input of the module. figure 40 shows the input ripple voltage for various output voltages at 2a of load current with 1x10 f or 1x22 f ceramic capacitors and an input of 5v. figure 41 shows the input ripple voltage for an input of 12v input ripple voltage (mvp-p) 20 30 40 50 60 70 80 90 0.5 1 1.5 2 2.5 3 3.5 1x10uf 1x22uf output voltage (vdc) figure 40. input ripple voltage for various output voltages with 1x10 f or 1x22 f ceramic capacitors at the input (2a load). input voltage is 5v. input ripple voltage (mvp-p) 20 30 40 50 60 70 80 90 100 110 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 1x10uf 1x22uf output voltage (vdc) figure 41. input ripple voltage for various output voltages with 1x10 f or 1x22 f ceramic capacitors at the input (2a load). input voltage is 12v. output filtering the 12v picotlynx tm 2a modules are designed for low output ripple voltage and will meet the maximum output ripple specification with 0.1 f ceramic and 22f ceramic capacitors at the output of the module. however,
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 13 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 polymer and ceramic capacitors are recommended to improve the dynamic response of the module. a minimum 22uf external cap must be used. figure 52 provides output ripple information for different external capacitance values at various vo and for a load current of 2a. 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. 0 2 4 6 8 10 12 14 0.5 1.5 2.5 3.5 4.5 output voltage(volts) ripple(mvp-p) 1x22uf external cap 1x47uf external cap 2x47uf external cap figure 52. output ripple voltage for various output voltages with external 1x22 f, 1x47 f or 2x47 f ceramic capacitors at the output (2a load). input voltage is 12v. 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, and din en 60950-1 (vde 0805 teil 1):2006- 11 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 4a in the positive input lead. feature descriptions remote enable the 12v picotlynx tm 2a power modules feature an on/off pin for remote on/off operation. two on/off logic options are available. in the positive logic on/off option, (device code suffix ?4? ? see ordering information), the module turns on during a logic high on the on/off pin and turns off during a logic low. with the negative logic on/off option, (no device code suffix, see ordering information), the module turns off during logic high and on during logic low. the on/off signal is always referenced to ground. for either on/off logic option, leaving the on/off pin disconnected will turn the module on when input voltage is present. for positive logic modules, the circuit configuration for using the on/off pin is shown in figure 53. q1 vin+ gnd + pwm enable on/off v on/off _ mod u l e i rpullup on/off 10k q2 10k 50k 50k q3 10k 10k figure 53. circuit configuration for using positive on/off logic. for negative logic on/off modules, the circuit configuration is shown in fig. 54. q1 on/off vin+ gnd + pwm enable v on/off _ module i rpullup on/off 10k q2 10k figure 54. circuit configuration for using negative on/off logic. 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
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 14 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. overtemperature protection to provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. the unit will shutdown if the overtemperature threshold of 140 o c is exceeded at the thermal reference point t ref . 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, the module operation is disabled. the module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. output voltage programming the output voltage of the 12v picotlynx tm 2a modules can be programmed to any voltage from 0.6dc to 5.5vdc by connecting a resistor between the trim and gnd 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. 55. the lower limit curve shows that for output voltages of 2.4v and higher, the input voltage needs to be larger than the minimum of 3v. 0 2 4 6 8 10 12 14 16 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 output voltage (v) input voltage (v) figure 55. 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 gnd 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 0 . 6 rtrim is the external resistor in k ? vo is the desired output voltage. table 1 provides rtrim values required for some common output voltages. table 1 v o, set (v) rtrim ( k ? ) 1.0 15 1.2 10 1.5 6.67 1.8 5 2.5 3.16 3.3 2.22 5.0 1.36 by using a 0.5% tolerance trim resistor with a tc of 100ppm, a set point tolerance of 1.5% can be achieved as specified in the electrical specification. remote sense the 12v picotlynx tm 2a power modules have a remote sense feature to minimize the effects of distribution losses by regulating the voltage at the sense pin. the voltage between the sense pin and vout pin must not exceed 0.5v. note that the output voltage of the module cannot exceed the specified maximum value. this includes the voltage drop between the sense and vout pins. when the remote sense feature is not being used, connect the sense pin to the vout pin . v o (+) trim gnd r tr i m load v in (+) on/off sense figure 56. circuit configuration for programming output voltage using an external resistor. voltage margining output voltage margining can be implemented in the 12v picotlynx tm 2a modules by connecting a resistor, r margin-up , from the trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, r margin-down , from the trim pin to output pin for margining-down. figure 10 shows the circuit configuration for output voltage margining. the pol programming tool, available at www.lineagepower.com under the design tools section, also calculates the values of r margin-up and r margin-down for a specific output voltage and % margin. please consult your local ge critical power technical representative for additional details.
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 15 vo module gnd trim q1 rtrim rmargin-up q2 rmargin-down figure 57. circuit configuration for margining output voltage. monotonic start- up and shutdown the 12v picotlynx tm 2a modules have monotonic start- up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. startup into pre-biased output the 12v picotlynx tm 2a modules can start into a prebiased output as long as the prebias voltage is 0.5v less than the set output voltage. power good the 12v picotlynx tm 2a modules provide a power good (pgood) signal that is implemented with an open-drain output to indicate that the output voltage is within the regulation limits of the power module. the pgood signal will be de-asserted to a low state if any condition such as overtemperature, overcurrent or loss of regulation occurs that would result in the output voltage going 12.5% outside the setpoint value. the pgood terminal should be connected through a pullup resistor (suggested value 100k ) to a source of 5vdc or lower. tunable loop tm the 12v picotlynx tm 2a modules have a new feature that optimizes transient response of the module called tunable loop tm . external capacitors are usually added to the output of the module for two reasons: to reduce output ripple and noise (see fig. 52) and to reduce output voltage deviations from the steady-state value in the presence of dynamic load current changes. 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. the tunable loop tm allows the user to externally adjust the voltage control loop to match the filter network connected to the output of the module. the tunable loop tm is implemented by connecting a series r-c between the sense and trim pins of the module, as shown in fig. 11. this r-c allows the user to externally adjust the voltage loop feedback compensation of the module.
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 16 module vout sense trim gnd rtune ctune rtrim c o figure. 58. circuit diagram showing connection of r tume and c tune to tune the control loop of the module. recommended values of r tune and c tune for different output capacitor combinations are given in tables 2 and 3. table 2 shows the recommended values of r tune and c tune for different values of ceramic output capacitors up to 470uf that might be needed for an application to meet output ripple and noise requirements. selecting r tune and c tune according to table 2 will ensure stable operation of the module. in applications with tight output voltage limits in the presence of dynamic current loading, additional output capacitance will be required. tables 3,4 and 5 list 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 1a to 2a step change (50% of full load), for input voltages of 12v, 5v and 3.3v respectively. please contact your ge critical 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 or input voltages other than 12v. table 2. general recommended values of of r tune and c tune for vin=12v/5v/3.3v and various external ceramic capacitor combinations. co 1x47 f 2x47 f 3x47 f 4x47 f 10x47 f r tune 220 150 100 100 100 c tune 3900pf 10nf 18nf 18nf 22nf table 3. recommended values of r tune and c tune to obtain transient deviation of 2% of vout for a 1a step load with vin=12v vo 5v 3.3v 2.5v 1.8v 1.2v 0.6v co 1 x22 f 1x47 f 2x47 f 2x47 f 3 x47 f 330 f polymer r tune 220 220 150 150 100 100 c tune 2 200pf 3 900pf 10nf 10nf 18nf 68nf v 81mv 61mv 35mv 34mv 23mv 12mv table 4. recommended values of r tune and c tune to obtain transient deviation of 2% of vout for a 1a step load with vin=5v vo 3.3v 2.5v 1.8v 1.2v 0.6v co 1x47 f 2x47 f 2x47 f 3 x47 f 330 f polymer r tune 220 150 150 100 100 c tune 3900pf 10nf 10nf 18nf 68nf v 62mv 35mv 34mv 23mv 12mv table 5. recommended values of r tune and c tune to obtain transient deviation of 2% of vout for a 1a step load with vin=3.3v vo 2.5v 1.8v 1.2v 0.6v co 3x47 f 2x47 f 3x47 f 330 f polymer r tune 100 150 100 100 c tune 18nf 10nf 18nf 68nf v 48mv 34mv 23mv 12mv
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 17 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 59. the preferred airflow direction for the module is in figure 60. a i r flow x power module w ind tunnel pwbs 12.7_ (0.50) 76.2_ (3.0) probe location for measuring airflow and ambient temperature 25.4_ (1.0) figure 59. thermal test setup. the thermal reference points, t ref used in the specifications are also shown in figure 13. for reliable operation the temperatures at these points should not exceed 140 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. figure 60. preferred airflow direction and location of hot-spot of the module (tref).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 18 shock and vibration the ruggedized (-d version) of the modules are designed to withstand elevated levels of shock and vibration to be able to opera te in harsh environments. the ruggedized modules have been successfully tested to the following conditions: non operating random vibration: random vibration tests conducted at 25c, 10 to 2000hz, for 30 minutes each level, starting from 30grms (z axis) and up to 50grm s (z axis). the units were then subjected to two more tests of 50grms at 30 minutes each for a total of 90 minutes. operating shock to 40g per mil std. 810f, method 516.4 procedure i: the modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock impulse characteristics as follows: all shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes. units were tested to the functional shock test of mil-std-810, method 516.4, procedure i - figure 516.4-4. a shock magnitude of 40g was utilized. the operational units were subjected to three shocks in each direction along three axes for a total of eighte en shocks. operating vibration per mil std 810f, method 514.5 procedure i: the ruggedized (-d version) modules are designed and tested to vibration levels as outlined in mil-std-810f, method 514.5, and procedure 1, using the power spectral density (psd) profiles as shown in table 6 and table 7 for all axes. full compliance with performance specifications was required during the performance test. no damage was allowed to the module and full compliance to performance specifications was required when the endurance environment was removed. the module was tested per mil-std- 810, method 514.5, procedure i, for functional (performance) and endurance random vibration using the performance and endurance levels shown in table 6 and table 7 for all axes. the performance test has been split, with one half accomplished bef ore the endurance test and one half after the endurance test (in each axis). the duration of the performance test was at least 16 minutes total per axis and at least 120 minutes total per axis for the endurance test. the endurance test period was 2 hours minimum per axis. table 6: performance vibration qualification - all axes frequency (hz) psd level (g2/hz) frequency (hz) psd level (g2/hz) frequency (hz) psd level (g2/hz) 10 1.14e-03 170 2.54e-03 690 1.03e-03 30 5.96e-03 230 3.70e-03 800 7.29e-03 40 9.53e-04 290 7.99e-04 890 1.00e-03 50 2.08e-03 340 1.12e-02 1070 2.67e-03 90 2.08e-03 370 1.12e-02 1240 1.08e-03 110 7.05e-04 430 8.84e-04 1550 2.54e-03 130 5.00e-03 490 1.54e-03 1780 2.88e-03 140 8.20e-04 560 5.62e-04 2000 5.62e-04 table 7: endurance vibratio n qualification - all axes frequency (hz) psd level (g2/hz) frequency (hz) psd level (g2/hz) frequency (hz) psd level (g2/hz) 10 0.00803 170 0.01795 690 0.00727 30 0.04216 230 0.02616 800 0.05155 40 0.00674 290 0.00565 890 0.00709 50 0.01468 340 0.07901 1070 0.01887 90 0.01468 370 0.07901 1240 0.00764 110 0.00498 430 0.00625 1550 0.01795 130 0.03536 490 0.01086 1780 0.02035 140 0.0058 560 0.00398 2000 0.00398
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 19 example application circuit requirements: vin: 12v vout: 1.8v iout: 1a max., worst case load transient is from 1a to 1.5a vout: 1.5% of vout (27mv) for worst case load transient vin, ripple 1.5% of vin (180mv, p-p) module vout sense gnd trim rtune ctune rtrim vin co1 + ci2 ci1 vin+ vout+ on/off q3 ci1 1x10 f/16v ceramic capacitor (e.g. tdk c series) ci2 100 f/16v bulk electrolytic co1 2x47 f/6.3v ceramic capacitor (e.g. tdk c series, murata grm32er60j476me20) ctune 5600pf ceramic capacitor (can be 1206, 0805 or 0603 size) rtune 150 ohms smt resistor (can be 1206, 0805 or 0603 size) rtrim 5k smt resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 20 mechanical outline dimensions are in millimeters and (inches). tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) pin function 1 on/off 2 vin 3 gnd 4 vout 5 sense 6 trim 7 gnd 8 nc 9 nc 10 pgood nc pin 7 pin 8
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 21 recommended pad layout dimensions are in millimeters and (inches). tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) pin function 1 on/off 2 vin 3 gnd 4 vout 5 sense 6 trim 7 gnd 8 nc 9 nc 10 pgood
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 22 packaging details the 12v picotlynx tm 2a modules are supplied in tape & reel as standard. modules are shipped in quantities of 400 modules per reel. all dimensions are in millimeters and (in inches). reel dimensions: outside dimensions: 330.2 mm (13.00) inside dimensions: 177.8 mm (7.00?) tape width: 24.00 mm (0.945?)
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current february 26, 2013 ?2013 general electric company. all rights reserved. page 23 surface mount information pick and place the 12v picotlynx tm 2a modules use an open frame construction and are designed for a fully automated assembly process. the modules are fitted with a label designed to provide a large surface area for pick and place operations. the label meets all the requirements for surface mount processing, as well as safety standards, and is able to withstand reflow temperatures of up to 300 o c. the label also carries product information such as product code, serial number and the location of manufacture. nozzle recommendations the module weight has been kept to a minimum by using open frame construction. variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. the minimum recommended inside nozzle diameter for reliable operation is 3mm. the maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 7 mm. bottom side / first side assembly this module is not recommended for assembly on the bottom side of a customer board. if such an assembly is attempted, components may fall off the module during the second reflow process. if assembly on the bottom side is planned, please contact ge critical power for special manufacturing process instructions. only ruggedized (-d version) modules with additional epoxy will work with a customer?s first si de assembly. for other versions, first side assembly should be avoided lead free soldering the 12v picotlynx tm 2a modules are lead-free (pb-free) and rohs compliant and fully compatible in a pb-free soldering process. failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. pb-free reflow profile power systems will comply with j-std-020 rev. c (moisture/reflow sensitivity classification for nonhermetic solid state surfac e mount devices) for both pb-free solder profiles and msl classification procedures. this standard provides a recommended forced-air- convection reflow profile based on the volume and thickness of the package (tab le 4-2). the suggested pb- free solder paste is sn/ag/cu (sac). a 6 mil thick stencil is recommended. for questions regarding land grid array(lga) soldering, solder volume; please contact ge critical power for special manufacturing process instructions. the recommended linear reflow profile using sn/ag/cu solder is shown in fig. 61. soldering outside of the recommended profile requires testing to verify results and performance. msl rating the 12v picotlynx tm 2a modules have a msl rating of 2a. storage and handling the recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in j-std-033 rev. a (handling, packing, shipping and use of moisture/reflow sensitive surface mount devices). moisture barrier bags (mbb) with desiccant are required for msl ratings of 2 or greater. these sealed packages should not be broken until time of use. once the original package is broken, the floor life of the product at conditions of 30c and 60% relative humidity varies according to the msl rating (see j-std-033a). the shelf life for dry packed smt packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40 c, < 90% relative humidity. per j-std-020 rev. c 0 50 100 150 200 250 300 reflow time (seconds) reflow temp (c) heating zone 1c/second peak temp 260c * min. time above 235c 15 seconds *time above 217c 60 seconds cooling zone figure 61. recommended linear reflow profile using sn/ag/cu solder. 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 board mounted power modules: soldering and cleaning application note (an04-001).
ge data sheet 2a picotlynx tm : non-isolated dc -dc power modules 3vdc ?14vdc input; 0.6vdc to 5. 5vdc output; 2a output current contact us for more information, call us at usa/canada: +1 888 546 3243 , or +1 972 244 9288 asia-pacific: +86.021.54279977*808 europe, middle-east and africa: +49.89.74423-206 india: +91.80.28411633 www.ge.com/powerelectronics february 26, 2013 ?2013 general electric company. all rights reserved. version 1.13 ordering information please contact your ge critical power sales representative for pricing, availability and optional features. table 8. device codes device code input voltage range output voltage output current on/off logic sequencing comcodes apxs002a0x-srz 3 ? 14vdc 0.6 ? 5.5vdc 2a negative no cc109150406 APXS002A0X-SRDZ 3 ? 14vdc 0.6 ? 5.5vdc 2a negative no cc109158812 * special codes, consult factory before ordering table 9. coding scheme tlynx family sequencing feature. input voltage range output current output voltage on/off logic options rohs compliance ap x s 002a0 x 4 -sr -d z x = w/o seq. s = 3 - 14v 2.0a x = programmable output 4 = positive no entry = negative s = surface mount r = tape&reel d = 105c operating ambient, 40g operating shock as per mil std 810f z = rohs6

▲Up To Search▲

Price & Availability of APXS002A0X-SRDZ

	To Download APXS002A0X-SRDZ Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .