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| 1/16 www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. power management switch ics for pcs and digital consumer product 2ch high current output usb high side switch ics bd2062fj,BD2066FJ description high side switch for usb is a high side switch having over-c urrent protection used in power supply line of universal serial bus (usb). its switch unit has two channels of n-channel po wer mosfet. and, over-current detection circuit, thermal shutdown circuit, under-voltage lockout and soft-start circuit are built in. features 1) dual n-mos high side switch 2) current limit threshold 2.4a 3) control input logic active-low : bd2062fj active-high : BD2066FJ 4) soft-start circuit 5) over-current detection 6) thermal shutdown 7) under-voltage lockout 8) open-drain error flag output 9) reverse current protection when switch off 10) flag output delay filter built in 11) power supply voltage range 2.7v~5.5v 12) ttl enable input 13) 0.8ms typical rise time 14) 1 a max standby current applications pc, pc peripheral usb hub in consumer appliances, car accessory, and so forth line up matrix parameter bd2062fj BD2066FJ current limit threshold (a) 2.4 2.4 control input logic low high number of channels 2ch 2ch package sop-j8 sop-j8 no.10029eat15
technical note 2/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. absolute maximum ratings (ta=25 ) parameter symbol ratings unit supply voltage v in -0.3 ~ 6.0 v enable input voltage v en -0.3 ~ 6.0 v /oc voltage v /oc -0.3 ~ 6.0 v /oc sink current is /oc ~ 5 ma out voltage v out -0.3 ~ 6.0 v storage temperature t stg -55 ~ 150 power dissipation pd 675 *1 mw *1 mounted on 70mm * 70mm * 1.6mm glass-epoxy pcb. derating : 5.4mw/ o c above ta=25 o c * this product is not designed for protection against radioactive rays. operating conditions parameter symbol ratings unit min. typ. max. operating voltage v in 2.7 - 5.5 v operating temperature t opr -40 - 85 technical note 3/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. electrical characteristics bd2062fj (unless otherwise specified v in = 5.0v, ta = 25 ) parameter symbol limits unit conditions min. typ. max. operating current i dd - 130 180 a v /en = 0v , out=open standby current i stb - 0.01 1 a v /en = 5v , out=open /en input voltage v /en 2.0 - - v high input v /en - - 0.8 v low input /en input current i /en -1.0 0.01 1.0 a v /en = 0v or v /en = 5v /oc output low voltage v /ocl - - 0.5 v i /oc = 1ma /oc output leak current il /oc - 0.01 1 a v /oc = 5v /oc delay time t /oc 10 15 20 ms on-resistance r on - 80 125 m? i out = 500ma switch leak current il sw - - 1.0 a v /en = 5v, v out = 0v reverse leak current il rev - - 1.0 a v out = 5.5v, v in = 0v current limit threshold i th 1.5 2.4 3.0 a short circuit current i sc 1.1 1.5 2.1 a v out = 0v c l = 47 f (rms) output rise time t on1 - 0.8 10 ms r l = 10 ? output turn-on time t on2 - 1.1 20 ms r l = 10 ? output fall time t off1 - 5 20 s r l = 10 ? output turn-off time t off2 - 10 40 s r l = 10 ? uvlo threshold v tuvh 2.1 2.3 2.5 v increasing v in v tuvl 2.0 2.2 2.4 v decreasing v in technical note 4/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD2066FJ (unless otherwise specified vin = 5.0v, ta = 25 ) parameter symbol limits unit condition min. typ. max. operating current i dd - 130 180 a v en = 5v , out=open standby current i stb - 0.01 1 a v en = 0v , out=open en input voltage v en 2.0 - - v high input v en - - 0.8 v low input en input current i en -1.0 0.01 1.0 a v en = 0v or v en = 5v /oc output low voltage v /ocl - - 0.5 v i /oc = 1ma /oc output leak current il /oc - 0.01 1 a v /oc = 5v /oc delay time t /oc 10 15 20 ms on-resistance r on - 80 125 m ? i out = 500ma switch leak current il sw - - 1.0 a v en = 0v, v out = 0v reverse leak current il rev - - 1.0 a v out = 5.5v, v in = 0v current limit threshold i th 1.5 2.4 3.0 a short circuit current i sc 1.1 1.5 2.1 a v out = 0v c l = 47 f (rms) output rise time t on1 - 0.8 10 ms r l = 10 ? output turn-on time t on2 - 1.1 20 ms r l = 10 ? output fall time t off1 - 5 20 s r l = 10 ? output turn-off time t off2 - 10 40 s r l = 10 ? uvlo threshold v tuvh 2.1 2.3 2.5 v increasing v in v tuvl 2.0 2.2 2.4 v decreasing v in technical note 5/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. measurement circuit gnd in en1 en2 /oc1 out1 out2 /oc2 v in v en a 1f v en gnd in en1 en2 /oc1 out1 out2 /oc2 v in v en 1f v en r l c l r l c l operating current en, /en input voltage, output rise, fall time inrush current gnd in en1 en2 /oc1 out1 out2 /oc2 v in v en 1f v en i out i out v dd gnd in en1 en2 /oc1 out1 out2 /oc2 v in v en 1f v en i out 10k 10k i out on-resistance, over-current detection /oc output low voltage fig.1 measurement circuit timing diagram bd2062fj BD2066FJ t on2 50% t on1 10% 90% 50% 90% 10% t off1 v out v/ en t off2 t on2 50% t on1 10% 90% 50% 90% 10% t off1 v out v en t off2 fig.2 timing diagram fig.3 timing diagram technical note 6/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. electrical characteristic curves (reference data) 1.5 2 2.5 3 -50 0 50 100 ambient temperature: t a ( ) current limit threshold: i th (a) 1.5 2 2.5 3 23456 supply voltage: v in (v) current limt threshold: i th (a) 0 20 40 60 80 100 120 -50 0 50 100 ambient temperature: t a ( ) on resistance: r on (m ) 0 20 40 60 80 100 120 23456 supply voltage: v in (v) on resistance: r on (m ) 0 20 40 60 80 100 -50 0 50 100 ambient temperature: t a ( ) /oc output voltage: v /oc (mv) 0 20 40 60 80 100 23456 supply voltage: v in (v) /oc output voltage: v /oc (mv) 0 0.5 1 1.5 2 - 50 0 50 100 ambient temperature: t a ( ) en input voltage: v en (v) 0 0.5 1 1.5 2 23456 supply voltage: v in (v) en input voltage: v en (v) 0 0.2 0.4 0.6 0.8 1 -50 0 50 100 ambient temperature: t a ( ) standby current: i dd (ua) 0 0.2 0.4 0.6 0.8 1 23456 supply voltage: v in (v) standby current: i dd (ua) 0 20 40 60 80 100 120 140 160 180 -50 0 50 100 ambient temperature: t a ( ) operating current: i dd (ua) 0 20 40 60 80 100 120 140 160 180 23456 supply voltage: v in (v) operating current: i dd (ua) fig.14 current limit threshold fig.4 operating current en, /en enable fig.5 operating current en, /en enable fig.6 standby current en, /en disable fig.7 standby current en, /en disable fig.8 en, /en input voltage fig.9 en, /en input voltage fig.10 /oc output low voltage fig.11 /oc output low voltage fig.12 on-resistance fig.13 on-resistance t a =25 t a =25 v in =5v v in =5v t a =25 t a =25 t a =25 t a =25 v in =5v v in =5v v in =5v v in =5v low to high high to low high to low low to high fig.15 current limit threshold technical note 7/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. 0 5 10 15 20 -50 0 50 100 ambient temperature: t a ( ) /oc delay time: t /oc (ms) 0 5 10 15 20 23 456 supply voltage: v in (v) /oc delay time: t /oc (ms) 0 2 4 6 8 10 -50 0 50 100 ambient temperature: t a () turn off time: t off2 (us) 0 2 4 6 8 10 23456 supply voltage: v in (v) turn off time: t off2 (us) 0 1 2 3 4 5 -50 0 50 100 ambient temperature: t a ( ) fall time: t off1 (us) 0 1 2 3 4 5 23456 supply voltage: v in (v) fall time: t off1 (us) 0 0.2 0.4 0.6 0.8 1 -50 0 50 100 ambient temperature: t a ( ) turn on time: t on2 (ms) 0 0.2 0.4 0.6 0.8 1 23456 supply voltage: v in (v) turn on time: t on2 (ms) 0 0.2 0.4 0.6 0.8 1 -50 0 50 100 ambient temperature: t a ( ) rise time: t on1 (ms) 0 0.2 0.4 0.6 0.8 1 23456 supply voltage: v in (v) rise time: t on1 (ms) 0 0.5 1 1.5 2 -50 0 50 100 ambient temperature: t a ( ) short circuit current:i sc (a) 0 0.2 0.4 0.6 0.8 1 23456 supply voltage: v in (v) output rise time: t on1 (ms) fig.16 short circuit current fig.17 short ci rcuit current fig.18 output rise time fig.19 output rise time fig.20 output tu rn-on time fig.21 output turn-on time fig.22 output fall time fig.23 output fa ll time fig.24 output turn-off time fig.25 output turn-off time fig.26 /oc delay time fig.27 /oc delay time v in =5v t a =25 v in =5v t a =25 t a =25 v in =5v t a =25 v in =5v t a =25 v in =5v t a =25 v in =5v technical note 8/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. waveform data(bd2062fj) 0 0.05 0.1 0.15 0.2 - 50 0 50 100 ambient temperature: t a ( ) uvlo hysteresis: v hys (v) 2 2.1 2.2 2.3 2.4 2.5 -50 0 50 100 ambient temperature: t a ( ) uvlo threshold: v uvlo (v) fig.28 uvlo threshold voltage fi g.29 uvlo hysteresis voltage fig.30 output rise characteristics fig.31 output fall characteristics fig.32 inrush current cl=47uf, 100uf, 147uf, 220uf fig.33 inrush current fig.34 over-current response ramped load fig.35 over-current response 1 load connected at enable fig.36 over-current response enable to short circuit fig.37 thermal shutdown res p onse vin=5v cl=100uf rl=5 /en 1v/div vout 1v/div v/oc 1v/div iin 0.5a/div time 200us/div /en 1v/div vout 1v/div v/oc 1v/div iin 0.5a/div /en 1v/div vout 1v/div v/oc 1v/div iin 0.5a/div vout1 1v/div vout2 1v/div v/oc1 1v/div iout1 1.0a/div vout2 1v/div vout1 1v/div v/oc1 1v/div iout1 0.5a/div vout1 1v/div v/oc1 1v/div vout2 1v/div iout1 1.0a/div /en 1v/div vout 1v/div voc 1v/div iout1 0.5a/div v/oc2 1v/div vout1 1v/div v/oc1 1v/div iout1 0.5a/div time 1ms/div time 200us/div time 200us/div time 5ms/div time 2ms/div time 2m s/div time 100ms/div vin=5v cl=100uf rl=5 vin=5v rl=5 cl=47uf cl=220uf cl=47uf cl=220uf vin=5v cl=220uf c=10uf rl=5 vin=5v cl=47uf vin=5v cl=47uf vin=5v cl=47uf rl=1 vin=5v cl=47uf v uvloh v uvlol technical note 9/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. block diagram gate logic1 ocd1 charge pump1 tsd1 uvlo charge pump2 ocd2 gate logic2 tsd2 /en1 en1 in /en2 en2 gnd /oc1 out1 out2 /oc2 delay delay 1 2 8 7 gnd in /oc1 out1 3 / en1 (en1) 4 6 5 out2 /oc2 top view / en2 (en2) fig.38 block diagram fig.39 pin configuration pin description bd2062fj pin no. symbol i / o pin function 1 gnd - ground. 2 in - power supply input. input terminal to the switch and po wer supply input terminal of the internal circuit. 3, 4 /en i enable input. switch on at low level. high level input > 2.0v, low level input < 0.8v. 5, 8 /oc o error flag output. low at over-current, thermal shutdown. open drain output. 6, 7 out o switch output. BD2066FJ pin no. symbol i / o pin function 1 gnd - ground. 2 in - power supply input. input terminal to the switch and po wer supply input terminal of the internal circuit. 3, 4 en i enable input. switch on at high level. high level input > 2.0v, low level input < 0.8v 5, 8 /oc o error flag output. low at over-current, thermal shutdown. open drain output. 6, 7 out o switch output. technical note 10/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. i/o circuit symbol pin no equivalent circuit en1(/en1) en2(/en2) 3, 4 /en1(en1) /en2(en2) /oc1 /oc2 5, 8 / oc1 / oc2 out1 out2 6, 7 out1 out2 technical note 11/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. functional description 1. switch operation in terminal and out terminal are connected to the drain and the source of switch mosfet respectively. and the in terminal is used also as power source input to internal control circuit. when the switch is turned on from en/en control input, in terminal and out terminal are connected by a 100m ? switch. in on status, the switch is bidirectional. therefore, when t he potential of out terminal is hi gher than that of in terminal, current flows from out te rminal to in terminal. since a parasitic diode between the drain and t he source of switch mosfet is canceled , in the off status, it is possible to prevent current from flowing reversely from out to in. 2. thermal shutdown circuit (tsd) thermal shut down circuit have dual thermal shutdown threshold. since thermal shutdown works at a lower junction temperature when an over-current occurs, only the switch of an over-current state becom e off and error flag is output. thermal shut down action has hysteresis. therefore, when the junction temperature goes down, switch on and error flag output automatically recover. however, until cause of junction temperature increa se such as output shortcircuit is removed or the switch is turned off, thermal shut down det ection and recovery are repeated. the thermal shut down circuit works when the switch of either out1 or out2 is on (en,/en signal is active). 3. over-current detection (ocd) the over-current detection circuit limits current (isc) and outputs error flag (/oc) when current flowing in each switch mosfet exceeds a specified value. there are three types of response against over-current. the over-current detection circuit works when the switch is on (en,/en signal is active). 3-1. when the switch is turned on while the output is in short-circuit status when the switch is turned on while the output is in short-circuit status or so, t he switch gets in current limit status soon. 3-2. when the output short-circui ts while the switch is on when the output short-circuits or large capacity is connected while the switch is on, very large current flows until the over-current limit circuit reacts. when the current detecti on, limit circuit works, current limitation is carried out. 3-3. when the output curre nt increases gradually when the output current increases gradually, current limitat ion does not work until the output current exceeds the over-current detection value. when it exceeds the detection value, current limitation is carried out. 4. under-voltage lockout (uvlo) uvlo circuit prevents the switch from turning on until the vin exceeds 2.3v(typ .). if the vin drops below 2.2v(typ.) while the switch turns on, then uvlo shuts off t he switch. uvlo has hysteresis of a 100mv(typ). under-voltage lockout circuit works when the switch of either out1 or out2 is on (en,/en signal is active). technical note 12/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. 5. error flag (/oc) output error flag output is n-mos open drain output. at detection of over-current, thermal shutdown, low level is output. over-current detection has delay filter. th is delay filter prevents instantaneous cu rrent detection such as inrush current at switch on, hot plug from being informed to outside. v /en v out i out v /oc out p ut shortcircuit thermal shut down delay fig.40 over-current detection, thermal shutdown timing (bd2062fj) v en v out i out v /oc out p ut shortcircuit thermal shut down delay fig.41 over-current detection, thermal shutdown timing (BD2066FJ) technical note 13/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. typical application circuit on/off oc oc on/off gnd in /en1 (en1) /oc1 out1 out2 /oc2 10k~100k 5v(typ.) out in vbus d+ d- gnd data regulator usb controller bd2062fj/66fj c l ferrite beads data /en2 (en2) 10k~100k c in data c l fig.42 typical application circuit application information when excessive current flows owing to output shortcircuit or so, ringing occurs by inductance of power source line to ic, and may cause bad influences upon ic actions. in order to avoid this case, connect a bypath capacitor by in terminal and gnd terminal of ic. 1uf or higher is recommended. pull up /oc output by resistance 10k ? ~ 100k ? . set up value which satisfies the application as c l and ferrite beads. this system connection diagram doesn?t guar antee operating as the application. the external circuit constant and so on is changed and it uses, in which there are adequate margins by taking into account external parts or dispersion of ic including not only stat ic characteristics but also transient characteristics. this system connection diagram doesn?t guar antee operating as the application. the external circuit constant and so on is changed and it uses, in which there are adequate margins by taking into account external parts or dispersion of ic including not only stat ic characteristics but also transient characteristics. technical note 14/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. 0 100 200 300 400 500 600 0 25 50 75 100 125 150 ambient temperature: ta [ ] power dissipation: pd[mw] power dissipation character (sop-j8) fig.43 power dissipation curve (pd-ta curve) notes for use (1) absolute maximum ratings an excess in the absolute maximum ratings, such as supply vo ltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. if any special mode exceeding the absolute maximum ratings is assum ed, consideration should be given to take physical safety measures including the use of fuses, etc. (2) operating conditions these conditions represent a range within which characteri stics can be provided approximately as expected. the electrical characteristics are guaranteed under the conditions of each parameter. (3) reverse connection of power supply connector the reverse connection of power supply connector can br eak down ics. take protective measures against the breakdown due to the reverse connection, such as mounti ng an external diode between the power supply and the ic?s power supply terminal. (4) power supply line design pcb pattern to provide low impedance for the wiring between the power supply and t he gnd lines. in this regard, for the digital block power supply and the analog block powe r supply, even though these po wer supplies has the same level of potential, separate the power supply pattern for the di gital block from that for the analog block, thus suppressing the diffraction of digital noises to the analog block power supply resulting from impedance common to the wiring patterns. for the gnd line, give consideration to design the patterns in a similar manner. furthermore, for all power supply terminals to ics, mount a capacitor between the power supply and the gnd terminal. at the same time, in order to use an electrol ytic capacitor, thoroughly check to be sure the characteristics of the capacitor to be used present no problem including the occurrence of capaci ty dropout at a low temperature, thus determining the constant. (5) gnd voltage make setting of the potential of the gnd terminal so that it will be maintained at the minimum in any operating state. furthermore, check to be sure no terminals are at a potential lower than the gnd voltage including an actual electric transient. (6) short circuit between terminals and erroneous mounting in order to mount ics on a set pcb, pay thorough attention to the direction and offset of the ics. erroneous mounting can break down the ics. furthermore, if a short circuit occurs due to foreign matters entering between terminals or between the terminal and the power supply or t he gnd terminal, the ics can break down. technical note 15/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. (7) operation in strong electromagnetic field be noted that using ics in the strong elec tromagnetic field can malfunction them. (8) inspection with set pcb on the inspection with the set pcb, if a capacitor is connec ted to a low-impedance ic terminal, the ic can suffer stress. therefore, be sure to discharge from the set pcb by each proc ess. furthermore, in order to mount or dismount the set pcb to/from the jig for the inspection process, be sure to turn off the power supply and then mount the set pcb to the jig. after the completion of the inspection, be sure to turn off the power supply and then di smount it from the jig. in addition, for protection against static electricity, establis h a ground for the assembly process and pay thorough attention to the transportation and t he storage of the set pcb. (9) input terminals in terms of the construction of ic, para sitic elements are inevitably formed in relation to potential. the operation of the parasitic element can cause interference with circuit operation, thus resulting in a malfunct ion and then breakdown of the input terminal. therefore, pay thorough attention not to handle the input terminals, such as to apply to the input terminals a voltage lower than the gnd respectively, so that any parasitic element will operate. furthermore, do not apply a voltage to the input terminals when no power supply voltage is applie d to the ic. in addition, even if the power supply voltage is applied, apply to the input terminals a volt age lower than the power supply voltag e or within the guaranteed value of electrical characteristics. (10) ground wiring pattern if small-signal gnd and large-current gnd are provided, it will be recommended to separate the large-current gnd pattern from the small-signal gnd pattern and establish a si ngle ground at the reference poi nt of the set pcb so that resistance to the wiring pattern and voltage fluctuations due to a large current will cause no fluc tuations in voltages of the small-signal gnd. pay attention not to cause fluctuations in the gnd wiring pattern of external parts as well. (11) external capacitor in order to use a ceramic capacitor as the external capaci tor, determine the constant wi th consideration given to a degradation in the nominal capacitance due to dc bias and c hanges in the capacitance due to temperature, etc. (12) thermal shutdown circuit (tsd) when junction temperatures become detecte d temperatures or higher, the thermal shutdown circuit operates and turns a switch off. the thermal shutdown circuit is aimed at isolati ng the lsi from thermal runaway as much as possible. do not continuously use the lsi with this circuit ope rating or use the lsi assuming its operation. (13) thermal design perform thermal design in which there are adequate margins by taking into account the power dissipation (pd) in actual states of use. technical note 16/16 bd2062fj,BD2066FJ www.rohm.com 2010.05 - rev.a ? 2010 rohm co., ltd. all rights reserved. ordering part number b d 2 0 6 2 f j - e 2 part no. part no. 2062 2066 package fj: sop-j8 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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