View RHFL4913A12_5847027.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

this is information on a product in full production. august 2012 doc id 10005 rev 15 1/20 20 rhfl4913a rad-hard adjustable posi tive voltage regulator datasheet ? production data features 3 a low dropout voltage embedded overtemperature and overcurrent protection adjustable overcu rrent limitation output overload m onitoring/signalling adjustable output voltage inhibit (on/off) ttl-compatible control programmable output short-circuit current remote sensing operation rad-hard: guaranteed up to 300 krad mil std 883e method 1019.6 high dose rate and 0.01 rad/s in eldrs conditions heavy ion, sel immune description the rhfl4913a high-performance adjustable positive voltage regulato r provides exceptional radiation performance. it is tested in accordance with mil std 883e method 1019.6, in eldrs conditions. the device is available in the flat-16 and the new smd5c hermetic ceramic package, and the qml-v die is specifically designed for space and harsh radiation environments. it operates with an input supply of up to 12 volts. the rhfl4913a is qml- v qualified, dscc smd #5962f02524. flat-16 smd5c: 5-connection smd www.st.com
contents rhfl4913a 2/20 doc id 10005 rev 15 contents 1 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.1 adj pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 inhibit on-off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.3 overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.4 overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.5 ocm pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.6 alternatives to the rhfl4913a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 notes on the 16-pin hermetic package . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.2 remote sensing operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.3 fpga power supply lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 die information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7.1 die bonding pad locations and electrical functions . . . . . . . . . . . . . . . . . 13 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 9 packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 11 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
rhfl4913a diagram doc id 10005 rev 15 3/20 1 diagram figure 1. block diagram
pin configuration rhfl4913a 4/20 doc id 10005 rev 15 2 pin configuration figure 2. pin configuration (top view for flat-16, bottom view for smd5c) flat-16 smd5c table 1. pin description pin name flat-16 (1) smd5c (2) v o 1, 2, 6, 7 1 v i 3, 4, 5 4 gnd 13 5 i sc 8 ocm 10 inhibit 14 3 adj 15 2 nc 9, 11, 12, 16 1. the upper metallic package lid and the bottom metallizati on are neither connected to r egulator die nor to package terminals, hence elec trically floating. 2. the upper metallic package lid is neither connected to regulator die nor to pack age terminals, hence electrically floating.
rhfl4913a maximum ratings doc id 10005 rev 15 5/20 3 maximum ratings table 2. recommended maximum operating ratings (1) 1. exceeding maximum ratings may damage the device. symbol parameter value unit v i dc input voltage, v i - v ground 12 v v o dc output voltage range 1.23 to 9 v i o output current, rhfl4913kpa 2 a i o output current, rhfl4913sca 3 p d t c = 25 c power dissipation 15 w t stg storage temperature range -65 to +150 c t op operating junction temperature range -55 to +150 c esd electrostatic discharge capability class 3 table 3. thermal data symbol parameter value unit r thjc thermal resistance junction-case, flat-16 and smd5c 8.3 c/w t sold maximum soldering temperature, 10 sec. 300 c
electrical characteristics rhfl4913a 6/20 doc id 10005 rev 15 4 electrical characteristics t j = 25 c, v i = v o + 2.5 v, c i = c o = 1 f, unless otherwise specified. table 4. electrical characteristics symbol parameter test conditions min. typ. max. unit v i operating input voltage i o = 1 a, t j = -55 to 125c 3 12 v v o operating output voltage i o = 1 a and or 2, v o = 1.23 v 1.19 1.27 v i o = 1 a and or 2, v o = 9 v 8.7 9.3 v i short output current limit (1) adjustable by mask/external resistor 1 4.5 a v o / v i line regulation v i = v o +2.5 v to 12 v, i o = 5 ma, t j = +25 c 0.35 % v i = v o +2.5 v to 12 v, i o = 5 ma, t j = -55 c 0.4 v i = v o +2.5 v to 12 v, i o = 5 ma, t j = +125 c 0.4 v o / v o load regulation v i = v o +2.5 v, i o = 5 to 400 ma, t j = +25 c 0.3 % v i = v o +2.5 v, i o = 5 to 400 ma, t j = -55 c 0.5 v i = v o +2.5 v, i o = 5 to 400 ma, t j = +125 c 0.5 v i = v o +2.5 v, i o = 5 ma to 1 a, t j = +25 c 0.5 v i = v o +2.5 v, i o = 5 ma to 1a, t j = -55c 0.6 v i = v o +2.5 v, i o = 5 ma to 1a, t j = +125c 0.6 z out output impedance i o = 100 ma dc and 20 ma rms 100 m i q quiescent current v i = v o +2.5 v, i o = 5 ma, on mode (+25c) 6 ma v i = v o +2.5 v, i o = 30 ma, on mode (+25c) 8 v i = v o +2.5 v, i o = 300 ma, on mode (+25c) 25 v i = v o +2.5 v, i o = 1 a, on mode (+25c) 60 v i = v o +2 v, v inh = 2.4 v, off mode 1
rhfl4913a electrical characteristics doc id 10005 rev 15 7/20 i q quiescent current on mode v i = v o +2.5 v, i o = 30 ma, (-55c) 14 ma v i = v o +2.5 v, i o = 300 ma, (-55c) 40 v i = v o +2.5 v, i o = 1 a, (-55c) 100 v i = v o +2.5 v, i o = 30 ma, (+125c) 8 v i = v o +2.5 v, i o = 300 ma, (+125c) 20 v i = v o +2.5 v, i o = 1 a, (+125c) 40 v d dropout voltage i o = 400 ma, v o = 2.5 to 9 v, (+25c) 350 450 mv i o = 400 ma, v o = 2.5 to 9 v, (-55c) 300 400 i o = 400 ma, v o = 2.5 to 9 v, (+125c) 450 550 i o = 1 a, v o = 2.5 to 9 v, (+25c) 650 i o = 1 a, v o = 2.5 to 9 v, (-55c) 550 i o = 1 a, v o = 2.5 to 9 v, (+125c) 800 i o = 2 a, v o = 2.5 to 9 v, (+25c) 900 i o = 2 a, v o = 2.5 to 9 v, (+125c) 950 v inh(on) inhibit voltage i o = 5 ma, t j = -55 to +125c 0.8 v v inh(off) inhibit voltage i o = 5 ma, t j = -55 to +125c 2.4 svr supply voltage rejection (1) v i = v o + 2.5 v 0.5 v, v o = 3 v i o = 5 ma f = 120 hz 60 70 db f = 33 khz 30 40 i sh shutdown input current v inh = 5 v 15 a v ocm ocm pin voltage sinked i ocm = 24 ma active low 0.38 v t plh t phl inhibit propagation delay (1) v i = v o + 2.5v, v inh = 2.4 v, i o = 400 ma v o = 3 v on-off 20 s off-on 100 s en output noise voltage (1) b = 10 hz to 100 khz, i o = 5 ma to 2 a 40 vrms 1. these values are guaranteed by design. for each application it is strongly recommended to comply with the maximum current limit of the package used. table 4. electrical characteristics (continued) symbol parameter test conditions min. typ. max. unit
electrical characteristics rhfl4913a 8/20 doc id 10005 rev 15 figure 3. application diagram for remote sensing operation
rhfl4913a device description doc id 10005 rev 15 9/20 5 device description the rhfl4913a adjustable voltage regulator contains a pnp type power element controlled by a signal resulting from an amplified comparison between the internal temperature-compensated band-gap and the fraction of the desired output voltage value obtained from an external resistor divider bridge. the device is protected by several functional blocks. 5.1 adj pin the load output voltage feedback comes from an external resistor divider bridge mid-point connected to the adj pin (allowing all possible output voltage settings as per user requirements) established between load terminals. 5.2 inhibit on-off control by setting the inhibit pin ttl high, the device switches off the output current and voltage. the device is on when the inhibit pin is set low. since the inhibit pin is pulled down internally, it can be left floating in cases where the inhibit function is not used. 5.3 overtemperature protection a temperature detector internally monitors the power element junction temperature. the device turns off when a temperature of approximately 175 c is reached, returning to on mode when back to approximately 135 c. combined with the other protection blocks, the device is protected from destructive junction temperature excursions in all load conditions. it should be noted that when the internal temperature detector reaches 175 c, the active power element can be as high as 225 c. prolonged operation under these conditions far exceeds the maximum operating ratings and device reliability cannot be guaranteed. 5.4 overcurrent protection an internal non fold-back short circuit limitation is set with i short > 3.8 a (v o is 0 v). this value can be decreased via an external resistor connected between the i sc and v i pins, with a typical value range of 10 k to 200 k . to maintain optimal v o regulation, it is necessary to set i short 1.6 times greater than the maximum desired application i o . when i o reaches i short ? 300 ma, the current limiter overrules the regulation, v o starts to drop and the ocm flag is raised. when no current limitation adjustment is required, the i sc pin must be left unbiased (as it is in 3 pin packages). 5.5 ocm pin the ocm pin goes low when the current limit becomes active, otherwise v ocm = v i . it is buffered and can sink 10 ma. the ocm pin is internally pulled up by a 5 k resistor.
application information rhfl4913a 10/20 doc id 10005 rev 15 5.6 alternatives to the rhfl4913a the adjustable rhfl4913a is recommended to replace all industry positive voltage regulators due to its exceptional radiation performance. to replace 3-terminal industry devices, the fixed voltage versions of the rhfl4913a should be used. 6 application information to adjust the output voltage, the r2 resistor must be connected between the v o and adj pins. the r1 resistor must be connected between adj and ground. resistor values can be derived from the following formula: v o = v adj (r1+ r2) / r1 the v adj is 1.23 v, controlled by the internal temperature-compensated band gap block. the minimum output voltage is therefore 1.22 v and minimum input voltage is 3 v. the rhfl4913a adjustable is functional as soon as the v i - v o voltage difference is slightly above the power element saturation voltage. the adjust pin to ground resistor value must not be greater than 10 k , in order to keep the output feedback error below 0.2%. a minimum of 0.5 ma i o must be set to ensure perfect no-load regulation. it is advisable to dissipate this current into the divider bridge resistor. all available v i pins, as well as all available v o pins, should always be externally in terconnected, other wise the stability and reliability of the device cannot be guaranteed. the in hibit function switch es off the output current electronically, and therefore very quickly. according to lenz?s law, external circuitry reacts with ldi/dt terms which can be of high amplitude in case somewhere a serial coil inductance exists. large transient voltage would develop on both device terminals. it is advisable to protect the device with schottky diodes to prevent negative voltage excursions. in the worst case, a 14 v zener diode could protect the device input. the device has been designed for high stability and low dropout operation. therefore, tantalum inpu t and output capacitors with a minimum 1 f are mandat ory. capacitor esr range is from 0.01 to over 20 . this range is useful when esr increases at low temperature. when large transient currents are expected, larger value capacitors are necessary. in the case of high current operation with short circuit events expected, caution must be exercised with regard to capacitors. they must be connected as close as possible to the device terminals. as some tantalum capacito rs may permanently fail when subjected to high charge-up surge currents, it is recommended to decouple them with 470 nf polyester capacitors. since the rhfl4913a adjustable voltage regulator is manufactured with very high speed bipolar technology (6 ghz f t transistors), the pcb layout must be designed with exceptional care, with very low inductance and low mutually coupling lines. otherwise, high frequency parasitic signals may be picked up by the devi ce resulting in syste m self-oscillation. the benefit is an svr performance extended to far higher frequencies. 6.1 notes on the 16-pin hermetic package the bottom section of the 16-pin package is metallized in order to allow the user to directly solder the rhfl4913a onto pcb, no heat sink needed for enhanced heat removal.
rhfl4913a application information doc id 10005 rev 15 11/20 6.2 remote sensing operation a separate kelvin voltage sensing line provides the adj pin with exact load "high potential" information (see figure 3 ). but variable remote load current consumption induces variable iq current (iq is roughly the i o current divided by the h fe of the internal pnp series power element) routed through the parasitic series line resistor rw2. to compensate for this parasitic voltage, resistor rw1can be introduced to provide the necessary compensating voltage signal to the adjust pin. 6.3 fpga power supply lines because these devices are very sensitive to v dd transients beyond a few % of their nominal supply voltage (usually 1.5 v), special attention must be given by supply lines designers to mitigate possible heavy ion l4913 disturbances. the worst case heavy ion effect can be summarized as: the l4913 internal control loop being cut (made open) or short-circuited for a sub-microsecond duration. during such an event, the l4913 die power element can either provide excessive current or current supply stoppage to the output (v out ) for a duration of about one microsecond, after which time the l4913 smoothly recovers to nominal operation. to mitigate these "transients", it is recommended to implement the l4913 pcb layout as follows: minimizing series/parallel parasitic inductances of the pc path using a low esr 47 f tantalum v out filtering capacitor with a 470 nf ceramic capacitor in parallel with the former (to reduce dynamic esr) inserting a 100-200 nh ferrite core on the v out -to-tantalum capacitor wire with this implementation, the eldo simulated worst transient case shows no more than 90 mv deviation from the nominal line voltage value.
die information rhfl4913a 12/20 doc id 10005 rev 15 7 die information note: pad numbers reflect terminal numbers when placed in case flat-16. figure 4. die map gnd 0 ; 1002 1 3 inbh -1542 ; 868 adj -1545 ; 574 sense -1545 ; 287 v o -890 ; -974 v i 0 ; -974 v o 970 ; -974 ocm 1517 ; 5 short 1517 ; 2 14 15 16 1-2 3 -4-5 6-7 10 8
rhfl4913a die information doc id 10005 rev 15 13/20 7.1 die bonding pad locations and electrical functions die physical dimensions: ? die size: 150 mils x 110 mils (3.81 mm by 2.79 mm) ? die thickness: 375 m 25 m (14.8 mils 1 mil) pad size: v in , v out pads: 450 m x 330 m (17.7 mils by 13 mils) ? control pads: 184 m x 184 m (7.25 mils square) interface materials: ? top metallization: al/si/cu, 1.05 m 0.15 m ? backside metallization: none passivation: ? type: p. vapox + nitride ? thickness: 0.6 m 0.1 m + 0.6 m 0.08 m substrate: bare silicon assembly related information: ? substrate potential: floating recommended to be tied to ground ? special assembly instructions: "sense" pad not used; not internally connected to any part of the ic. can be connected to ground when space anti-static electricity rules apply.
package mechanical data rhfl4913a 14/20 doc id 10005 rev 15 8 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark.
rhfl4913a package mechanical data doc id 10005 rev 15 15/20 dim. mm. inch. min. typ. max. min. typ. max. a 2.16 2.72 0.0 8 5 0.107 b 0.4 3 0.017 c0.1 3 0.005 d 9 . 9 10. 39 0 e6. 9 1 0.272 e2 4. 3 2 0.170 e 3 0.76 0.0 3 0 e 1.27 0.050 l 6.72 0.265 q 0.66 1.14 0.026 0.045 s 1 0.1 3 0.005 flat-16 (mil- s td-1 83 5) mechanical data 7450 9 01a 1 8 16 e b c l e d s 1 q a e2 e 3 l e 3 9
package mechanical data rhfl4913a 16/20 doc id 10005 rev 15 dim. mm. inch. min. typ. max. min. typ. max. a2. 8 4 3 .00 3 .15 0.112 0.11 8 0.124 a1 0.25 0. 38 0.51 0.010 0.015 0.020 b 7.1 3 7.26 7. 39 0.2 8 1 0.2 8 6 0.2 9 1 b 14. 9 5 5.0 8 5.21 0.1 9 5 0.200 0.205 b 2 2.2 8 2.41 2.54 0.0 9 0 0.0 9 5 0.100 b3 2. 9 2 3 .05 3 .1 8 0.115 0.120 0.125 d1 3 .71 1 3 . 8 41 3 . 9 7 0.540 0.545 0.550 d1 0.76 0.0 3 0 e7. 39 7.52 7.65 0.2 9 1 0.2 9 60. 3 01 e1. 9 1 0.075 s md5c mechanical data 7 9 242 9 6b
rhfl4913a packaging doc id 10005 rev 15 17/20 9 packaging the rhfl4913a adjustable voltage regulator is available in a high thermal dissipation 16- pin hermetic flat package, the bo ttom flange of which is metalliz ed to allow direct soldering to a heat sink (efficient thermal conductivity) . the device is also available in the smd5c hermetic ceramic package.
ordering information rhfl4913a 18/20 doc id 10005 rev 15 10 ordering information table 5. order codes die flat-16 smd5c terminal finish output voltage quality level rhfl4913kpa-01v rhfl4913sca-07v gold adj qml-v rhfl4913kpa-02v solder adj qml-v rhfl4913kpa1 rhfl4913sca1 gold adj em1 rhfl4913kpa2 rhfl4913sca2 gold adj em2=em1+48hours b.i. l4913adie2v adj qml-v die l4913adies adj em1 die table 6. part numbers - smd equivalent st part number smd part number rhfl4913kpa-01v 5962f0252401vxc rhfl4913kpa-02v 5962f0252401vxa rhfl4913sca-07v 5962f0252403vuc l4913adie2v 5962f0252401v9a table 7. environmental characteristics parameter conditions value unit output voltage thermal drift -55c to +125c 40 ppm/c output voltage radiation drift from 0 kr ad to 300 krad at 0.55 rad/s 8 ppm/krad output voltage radiation drift from 0 krad to 300 krad, mil std 883e method 1019.6 6 ppm/krad
rhfl4913a revision history doc id 10005 rev 15 19/20 11 revision history table 8. document revision history date revision changes 29-oct-2004 3 new order codes added - tables 4 and 5. 27-may-2005 4 features, tables 4, 5 and the figure 1 has been updated. add the mechanical data soc-16. 08-jun-2005 5 mistake on table 4 (q.ty level), table 7 has been updated and add die information. 30-jan-2006 6 added new package smd5c and removed old package soc-16. 26-jan-2007 7 die information and die pad has been updated par. 6, pages 9 and 10. 23-nov-2007 8 pin information for the smd5c package updated in ta bl e 1 ; added section 6.3: fpga power supply lines on page 11 . minor text changes. 22-sep-2008 9 modified application information on page 10 . 17-nov-2008 10 modified table 6 on page 18 . 21-jan-2010 11 modified table 5 on page 18 . 18-oct-2010 12 modified section 6.1 on page 10 . 07-feb-2011 13 added: note table 1 on page 4 . 07-dec-2011 14 removed the note under table 1 on page 4 and added footnotes 1 and 2. 20-aug-2012 15 order code updated in table 5 on page 18 about the smd5c package.
rhfl4913a 20/20 doc id 10005 rev 15 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2012 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

▲Up To Search▲

Price & Availability of RHFL4913A12

	To Download RHFL4913A12 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .