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? semiconductor components industries, llc, 2010 june, 2010 ? rev. 8 1 publication order number: amis ? 41682/d amis-41682, AMIS-41683 fault tolerant can transceiver description the new amis ? 41682 and amis ? 41683 are interfaces between the protocol controller and the physical wires of the bus lines in a control area network (can). amis ? 41683 is identical to the amis ? 41682 but has a true 3.3 v digital interface to the can controller. the device provides differential transmit capability but will switch in error conditions to a single ? wire transmitter and/or receiver. initially it will be used for low speed applications, up to 125 kb, in passenger cars. both amis ? 41682 and amis ? 41683 are implemented in i2t100 technology enabling both high ? voltage analog circuitry and digital functionality to co ? exist on the same chip. these products consolidate the expertise of on semiconductor for in ? car multiplex transceivers and support together with 0remx ? 002 ? xtp (van), amis ? 30660 and amis ? 30663 (can high speed) and amis ? 30600 (lin) another widely used physical layer. features ? fully compatible with iso11898 ? 3 standard ? optimized for in ? car low ? speed communication ? baud rate up to 125 kb ? up to 32 nodes can be connected ? due to built ? in slope control function and a very good matching of the canl and canh bus outputs, this device realizes a very low electromagnetic emission (eme) ? fully integrated receiver filters ? permanent dominant monitoring of transmit data input ? differential receiver with wide common ? mode range for high electromagnetic susceptibility (ems) in normal ? and low ? power modes ? true 3.3 v digital i/o interface to can controller for amis ? 41683 only ? management in case of bus failure ? in the event of bus failures, automatic switching to single ? wire mode, even when the canh bus wire is short ? circuited to v cc ? the device will automatically reset to differential mode if the bus failure is removed ? during failure modes there is full wake ? up capability ? unpowered nodes do not disturb bus lines ? bus errors and thermal shutdown activation is flagged on err pin ? protection issues ? short circuit proof to battery and ground ? thermal protection ? the bus lines are protected against transients in an automotive environment ? an unpowered node does not disturb the bus lines ? support for low power modes ? low current sleep and standby mode with wake ? up via the bus lines ? power ? on flag on the output ? two ? edge sensitive wake ? up input signal via pin wake ? i/os ? the unpowered chip cannot be parasitically supplied either from digital inputs or from digital outputs ? these are pb ? free devices* *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. http://onsemi.com pin assignment (top view) see detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. ordering information 8 9 10 11 12 13 14 1 2 3 4 5 6 7 inh txd rxd en vbat rtl rth gnd canl canh vcc amis ? 4168x pc20041029.1 err stb wake
amis ? 41682, amis ? 41683 http://onsemi.com 2 table 1. technical characteristics symbol parameter condition max max unit v canh dc voltage at pin canh, canl 0 < v cc < 5.25 v; no time limit ? 40 +40 v v bat voltage at pin v bat load ? dump +40 v figure 1. block diagram canh canl rth driver control thermal shutdown por mode & wake-up control filter timer receiver failure handling amis ? 4168x rtl inh wake stb en txd err rxd vbat vcc 1 2 3 4 5 6 7 8 9 10 11 12 14 gnd 13 v cc ( * ) ( * ) for amis-41682 pull up to v cc . for AMIS-41683 pull up to v cc /2 vcc vcc amis ? 41682 err rxd 3 4 failure handling amis ? 41683 failure handling rxd 3 err 4
amis ? 41682, amis ? 41683 http://onsemi.com 3 table 2. pin description pin name description 1 inh inhibit output for external voltage regulator 2 txd transmit data input; internal pullup current 3 rxd receive data output 4 err error; wake ? up and power ? on flag; active low 5 stb standby digital control input; active low; pulldown resistor 6 en standby digital control input; active high; pulldown resistor 7 wake enable digital control input; falling and rising edges are both detected 8 rth pin for external termination resistor at canh 9 rtl pin for external termination resistor at canl 10 v cc 5 v supply input 11 canh bus line; high in dominant state 12 canl bus line; low in dominant state 13 gnd ground 14 v bat battery supply table 3. absolute maximum ratings symbol parameter min max unit v cc supply voltage on pin v cc ? 0.3 +6 v v bat battery voltage on pin v bat ? 0.3 +40 v v dig dc voltage on pins en, stb , err , txd, rxd ? 0.3 v cc + 0.3 v v canh ? l dc voltage on pin canh, canl ? 40 +40 v v tran ? can transient voltage on pins canh and canl (figure 10) (note 1) ? 350 +350 v v wake dc input voltage on pin wake ? 40 +40 v v inh dc output voltage on pin inh ? 0.3 v bat + 0.3 v v rth ? l dc voltage on pin rth, rtl ? 40 40 v r rth termination resistance on pin rth 500 16000 r rtl termination resistance on pin rtl 500 16000 t j maximum junction temperature ? 40 +150 c v esd electrostatic discharge voltage (canh ? and canl pin) human body model (note 2) ? 6 +6 kv electrostatic discharge voltage (other pins) human body model (note 2) ? 2.0 +2.0 kv electrostatic discharge voltage; cdm (note 3) ? 500 +500 v stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. the applied transients shall be in accordance with iso 7637 part 1, test pulses 1, 2, 3a, and 3b. class c operation 2. human body model according mil ? std ? 883c ? meth ? 3015.7 3. charged device model according esd ? stm5.3.1 ? 1999 table 4. thermal characteristics symbol parameter conditions value unit r th(vj ? a) thermal resistance from junction ? to ? ambient in ssop ? 14 package (two layer pcb) in free air 140 k/w r th(vj ? s) thermal resistance from junction ? to ? substrate of bare die in free air 30 k/w
amis ? 41682, amis ? 41683 http://onsemi.com 4 typical application schematic amis ? 41682 rtl rth canh canl gnd vcc vbat wake 5v ? reg vbat en err stb rxd txd vcc inh 2 1 3 4 5 6 7 8 9 10 11 12 13 14 in out can controller gnd can bus line pc20050610.1 * * optional figure 2. application diagram amis ? 41682 amis ? 41683 rtl rth canh canl gnd vcc vbat wake 5v ? reg vbat en err stb rxd txd vcc inh 2 1 3 4 5 6 7 8 9 10 11 12 13 14 in out 3.3v can controller gnd can bus line pc20050610.2 3.3v ? reg in out 4.7 k * optional * 4.7 k figure 3. application diagram amis ? 41683 the functional description and characteristics are made for amis ? 41682 but are also valid for amis ? 41683. differences between the two devices will be explicitly mentioned in the text.
amis ? 41682, amis ? 41683 http://onsemi.com 5 functional description description amis ? 41682 is a fault tolerant can transceiver which works as an interface between the can protocol controller and the physical wires of the can bus (see figure 2). it is primarily intended for low speed applications, up to 125 kb, in passenger cars. the device provides differential transmit capability to the can bus and dif ferential receive capability to the can controller. the amis ? 41683 has open ? drain outputs (rxd and err pins), which allow the user to use external pullup resistors to the required supply voltage; this can be 5 v or 3.3 v. to reduce eme, the rise and fall slope are limited. together with matched canl and canh output stages, this allows the use of an unshielded twisted pair or a parallel pair of wires for the bus lines. the failure detection logic automatically selects a suitable transmission mode, dif ferential or single ? wire transmission. together with the transmission mode, the failure detector will configure the output stages in such a way that excessive currents are avoided and the circuit returns to normal operation when the error is removed. a high common ? mode range for the differential receiver guarantees reception under worst case conditions and together with the integrated filter the circuit realizes an excellent immunity against ems. the receivers connected to pins canh and canl have threshold voltages that ensure a maximum noise margin in single ? wire mode. a timer has been integrated at pin txd. this timer prevents the amis ? 41682 from driving the bus lines to a permanent dominant state. failure detector the failure detector is fully active in the normal operating mode. after the detection of a single bus failure the detector switches to the appropriate mode. the different wiring failures are depicted in figure 4. the figure also indicates the effect of the different wiring failures on the transmitter and the receiver. the detection circuit itself is not depicted. the differential receiver threshold voltage is typically set at 3 v (v cc = 5 v). this ensures correct reception with a noise margin as high as possible in the normal operating mode and in the event of failures 1, 2, 4, and 6a. these failures, or recovery from them, do not destroy ongoing transmissions. during the failure, reception is still done by the differential receiver and the transmitter stays fully active. to avoid false triggering by external rf influences the single ? wire modes are activated after a certain delay time. when the bus failure disappears for another time delay, the transceiver switches back to the differential mode. when one of the bus failures 3, 5, 6, 6a, and 7 is detected, the defective bus wire is disabled by switching off the affected bus termination and the respective output stage. a wake ? up from sleep mode via the bus is possible either by way of a dominant canh or canl line. this ensures that a wake ? up is possible even if one of the failures 1 to 7 occurs. if any of the wiring failure occurs, the output signal on pin err will become low. on error recovery, the output signal on pin err will become high again. during all single ? wire transmissions, the emc performance (both immunity and emission) is worse than in the differential mode. the integrated receiver filters suppress any hf noise induced into the bus wires. the cut ? off frequency of these filters is a compromise between propagation delay and hf suppression. in the single ? wire mode, lf noise cannot be distinguished from the required signal.
amis ? 41682, amis ? 41683 http://onsemi.com 6 rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 7 : canh shorted to canl txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: dominant longer then tnd_f7 rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 1 : canh wire interrupted txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: cl= ch more then 4 pulses rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 2 : canl wire interrupted txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: cl= ch more then 4 pulses rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 5 : canh shorted to gnd gnd txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: cl= ch more then 4 pulses rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 3 : canh shorted to vbat vbat txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: canh > 2v longer then tnd_f3 vcc rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 3a : canh shorted to vcc vcc txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: canh >2v longer then tnd_f3 rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 4 : canl shorted to gnd gnd txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: dominant longer then tnd_f4 rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 6 : canl wire shorted to vbat vbat txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: canl>7v rth canh canl rtl rth canh canl rtl txd rxd err vcc vbat failure 6a : canl shorted to vcc vcc txd rxd err 0.6vcc 0.4vcc cl ch cd error ? detection: cl= ch more then 4 pulses figure 4. different types of wiring failure low power modes the transceiver provides three low power modes, which can be entered and exited via pins stbb and en (see figure 5). (go ? to ? sleep mode is only a transition mode.) the sleep mode is the mode with the lowest power consumption. pin inh is switched to high ? impedance for deactivation of the external voltage regulator. pin canl is biased to the battery voltage via pin rtl. if the supply voltage is provided, pins rxd and err will signal the wake ? up interrupt signal. the standby mode will react the same as the sleep mode but with a high ? level on pin inh. the power ? on standby mode is the same as the standby mode with the battery power ? on flag instead of the wake ? up interrupt signal on pin err . the output on pin rxd will show the wake ? up interrupt. this mode is only for reading out the power ? on flag. wake ? up request is detected by the following events:
amis ? 41682, amis ? 41683 http://onsemi.com 7 ? local wake ? up: rising or falling edge on input wake (levels maintained for a certain period). ? remote wake ? up from can bus: a message with five consecutive dominant bits. on a wake ? up request the transceiver will set the output on pin inh high which can be used to activate the external supply voltage regulator. note: pin inh is also set similarly as an after wake up event by v bat voltage being below the battery power on flag level. (see flag_vbat in figure 5) if v cc is provided, the wake ? up request can be read on the err or rxd outputs so the external microcontroller can wake ? up the transceiver (switch to normal operating mode) via pins stb and en. in the low power modes the failure detection circuit remains partly active to prevent increased power consumption in the event of failures 3, 3a, 4, and 7. the go ? to ? sleep ? mode is only a transition mode. the pin inh stays active for a limited time. during this time the circuit can still go to another low ? power mode. after this time the circuit goes to the sleep ? mode. in case of a wake up request (from bus or wake pin) during this transition time, the wake ? up request has higher priority than go ? to ? sleep and inh will not be deactivated. behavior in case of missing supplies if v cc is below the threshold level flag_v cc , the signals on pins stb and en will internally be set to low-level to provide fail safe functionality. in this way, a low-power mode will be forced in case of missing/failing v cc supply. similarly, missing/failing v bat supply ? i.e. v bat being below flag_v bat level - will lead to a fail-safe behavior of the transceiver by forcing a low-power mode. a forced low-power in case of missing supplies guarantees that the transceiver will in no way disturb the other can nodes when the local electronic unit looses ground or battery connection. stb change state power ? on stand ? by high low act en change state stb change state 1) only when vcc > por_vcc 2) inh active for a time = t_gotosleep 3) local wake ? up through pin wake which change state for a time > t_wake_min remote wake ? up through pin canl or canh when dominant for a time >tcanh_min or tcanl_min 4) mode change through pins stb and en is only possible if vcc > por_vcc stb err rxd inh en rtl por ? flag wu ? int vbat normal mode high high act stb err rxd inh en rtl err ? flag rec. out vcc standby mode low low act stb err rxd inh en rtl vbat goto sleep mode low high act 2) stb err rxd inh en rtl vbat sleep mode low low hz stb err rxd inh en rtl vbat wu ? int wu ? int wu ? int wu ? int wu ? int 1) wu ? int 1) en change state en, stb change state en, stb change state time ? out gotosleep mode local or remote wake ? up 3) power ? on mode change 4) figure 5. low power modes power ? on after power ? on (v bat switched on) the signal on pin inh will become high and an internal power ? on flag will be set. this flag can be read in the power ? on standby mode via pin err (stb = 1; en = 0) and will be reset by entering the normal operating mode. protections a current limiting circuit protects the transmitter output stages against short circuit to positive and negative battery voltage. if the junction temperature exceeds a maximum value, the transmitter output stages are disabled and flagged on the err pin. because the transmitter is responsible for the major part of the power dissipation, this will result in reduced power dissipation and hence a lower chip temperature. all other parts of the ic will remain operating. the pins canh and canl are protected against electrical transients that may occur in an automotive environment.
amis ? 41682, amis ? 41683 http://onsemi.com 8 electrical characteristics definitions all voltages are referenced to gnd (pin 13). positive currents flow into the ic. sinking current means that the current is flowing into the pin. sourcing current means that the current is flowing out of the pin. table 5. characteristics amis ? 4168x v cc = 4.75 v to 5.25 v, v bat = 5 v to 36 v, t j = ? 40 c to +150 c; unless otherwise specified. symbol parameter conditions min typ max unit supplies v cc v bat i cc supply current normal operating mode; vtxd = v cc (recessive) 1 3.7 6.3 ma normal operating mode; vtxd = 0 v (dominant); no load 1 8 12 ma flag_v cc forced low power mode v cc rising v cc falling 2.45 4.5 v i bat battery current on pin bat in all modes of operation; 500 v between rtl ? canl 500 v between rth ? canh v bat = wake = inh = 5 v to 36 v 10 110 230 a in sleepmode v cc = 0 v, v bat = 12.5 v t a = 70 c 35 42 a i cc + i bat supply current plus battery current low power modes; v cc = 5 v; t a = ? 40 c to 100 c v bat = wake = inh = 5 to 36v 30 60 a i cc + i bat supply current plus battery current low power modes; v cc = 5 v; t a = 100 c to 150 c v bat = wake = inh = 5 v to 36 v 80 a flag_v bat power ? on flag ? level for pin v bat for setting power ? on flag for not setting power ? on flag 3.5 2.1 2.4 1 v pins stb , en and txd r pd pulldown resistor at pin en and stb 1 v 190 360 600 k t distxd dominant time ? out for txd normal mode; vtxd = 0 v 0.75 4 ms t gotosleep minimum hold ? time for go ? to ? sleep mode 5 50 s pin wake i il low ? level input current v wake = 0 v; v bat = 27v ? 10 ? 1 a v th(wake) wake ? up threshold voltage v stb = 0 v 2.5 3.2 3.9 v t wakemin minimum time on pin wake (de- bounce time) v bat = 12 v; low power mode; for rising and falling edge 7 38 s pin inh v h high ? level voltage drop iinh = 0.18 ma 0.8 v i leak leakage current sleep mode; vinh = 0 v 1 a
amis ? 41682, amis ? 41683 http://onsemi.com 9 table 6. characteristics amis ? 41682 (5 v version) v cc = 4.75 v to 5.25 v, v bat = 5 v to 36 v, t j = ? 40 c to +150 c; unless otherwise specified. symbol parameter conditions min typ max unit pins stb , en and txd v ih high ? level input voltage 0.7 x v cc 6.0 v v il low ? level input voltage ? 0.3 0.3 x v cc v i ? pu ? h high ? level input current pin txd txd = 0.7 * v cc ? 10 ? 200 a i ? pu ? l low ? level input current pin txd txd = 0.3 * v cc ? 80 ? 800 a pins rxd and err v oh high ? level output voltage lsource = ? 1 ma v cc ? 0.9 v cc v v ol low ? level output voltage isink = 1.6 ma 0 0.4 v isink = 7.5 ma 0 1.5 v table 7. characteristics amis ? 41683 (3.3 version) v cc = 4.75 v to 5.25 v, v bat = 5 v to 36 v, t j = ? 40 c to +150 c; unless otherwise specified. symbol parameter conditions min typ max unit pins stb , en and txd v ih high ? level input voltage 2 6.0 v v il low ? level input voltage ? 0.3 0.8 v i ? pu ? h high ? level input current pin txd txd = 2 v ? 10 a pins rxd and err v ol low ? level output voltage open drain lsink = 3.2 ma 0.4 v i leak leakage when driver is off verr = vrxd = 5 v 1 a table 8. characteristics amis ? 4168x v cc = 4.75 v to 5.25 v, v bat = 5 v to 36 v, t j = ? 40 c to +150 c; unless otherwise specified. symbol parameter conditions min typ max unit pins canh and canl (receiver) v diff differential receiver threshold voltage no failures and bus failures 1, 2, 4, and 6a (see figure 4) v cc = 5 v v cc = 4.75 v to 5.25 v ? 3.25 0.65 x v cc ? 3 0.6 x v cc ? 2.75 0.55 x v cc v vsecanh single ? ended receiver threshold voltage on pin canh normal operating mode and failures 4, 6 and 7 v cc = 5 v v cc = 4.75 v to 5.25 v 1.6 0.32 x v cc 1.775 0.355 x v cc 1.95 0.39 x v cc v vsecanl single ? ended receiver threshold voltage on pin canl normal operating mode and failures 3 and 3a v cc = 5 v v cc = 4.75 v to 5.25 v 3 0.61 x v cc 3.2 0.645 x v cc 3.4 0.68 x v cc v v v det(canl) detection threshold voltage for short circuit to battery voltage on pin canl normal operating mode 6.5 7.3 8 v v th(wake) wake ? up threshold voltage on pin canl on pin canh low power modes 2.5 1.1 3.2 1.8 3. 9 2.25 v
amis ? 41682, amis ? 41683 http://onsemi.com 10 table 8. characteristics amis ? 4168x v cc = 4.75 v to 5.25 v, v bat = 5 v to 36 v, t j = ? 40 c to +150 c; unless otherwise specified. symbol unit max typ min conditions parameter pins canh and canl (receiver) dv th(wake) difference of wake ? up threshold voltages low power modes 0.8 1.4 v pins canh and canl (transmitter) v o(reces) recessive output voltage on pin canh on pin canl v txd = v cc r rth < 4 k r rtl < 4 k v cc ? 0.2 0.2 v v o(dom) dominant output voltage on pin canh on pin canl v txd = 0v; v en = v cc 0 ma i canh ? 40 ma 0 ma i canl 40 ma v cc ? 1.4 1.4 v i o(canh) output current on pin canh normal operating mode; v canh = 0v; vtxd = 0 v ? 11 0 ? 80 ? 45 ma low power modes; v canh = 0v; v cc = 5 v ? 1.6 0.5 1.6 a i o(canl) output current on pin canl normal operating mode; v canl = 14 v; v txd = 0 v 45 80 110 ma low power modes; v canl = 12 v; v bat = 12 v ? 1 0.5 1 a pins rth and rtl r sw(rtl) switch ? on resistance between pin rtl and v cc normal operating mode; i(rtl) > ? 10 ma 100 r sw(rth) switch ? on resistance between pin rth and ground normal operating mode; i(rth) < 10 ma 100 vo(rth) output voltage on pin rth low power modes; i o = 1 ma 1.0 v io(rtl) output current on pin rtl low power modes; v rtl = 0 v ? 1.25 ? 0.3 ma ipu(rtl) pullup current on pin rtl normal operating mode and failures 4, 6 and 7; v rtl = 0 v ? 75 a ipd(rth) pulldown current on pin rth normal operating mode and failures 3 and 3a ? 75 a thermal shutdown t j junction temperature for shutdown 150 180 c
amis ? 41682, amis ? 41683 http://onsemi.com 11 table 9. timing characteristics amis ? 4168x v cc = 4.75 v to 5.25 v, v bat = 5 v to 27 v, v stb = v cc , t j = ? 40 c to +150 c; unless otherwise specified. symbol parameter conditions min typ max unit t t(r ? d) canl and canh output transition time for recessive ? to ? dominant 10 to 90%; c1 = 10 nf; c2 = 0; r1 = 125 (see figure 6) 0.35 0.60 1.4 s t t(d ? r) canl and canh output transition time for dominant ? to ? recessive 10 to 90%; c1 = 1 nf; c2 = 0; r1 = 125 (see figure 6) 0.2 0.3 0.7 s t pd(l) propagation delay txd to rxd (low) no failures c1 = 1 nf; c2 = 0; r1 = 125 c1 = c2 = 3.3 nf; r1 = 125 0.75 1.4 1.5 2.1 s failures 1, 2, 5, and 6a (see figures 4 and 6) 1.2 1.4 1.9 2.1 s failures 3, 3a, 4, 6, and 7 (see figures 4 and 6) c1 = 1 nf; c2 = 0; r1 = 125 c1 = c2 = 3.3 nf; r1 = 125 c1 = 1 nf; c2 = 0; r1 = 125 c1 = c2 = 3.3nf; r1 = 125 1.2 1.5 1.9 2.2 s t pd(h) propagation delay txd to rxd (high) no failures c1 = 1 nf; c2 = 0; r1 = 125 c1 = c2 = 3.3nf; r1 = 125 0.75 2.5 1.5 3.0 s failures 1, 2, 5, and 6a (see figures 4 and 6) c1 = 1nf; c2 = 0; r1 = 125 c1 = c2 = 3.3nf; r1 = 125 1.2 2.5 1.9 3.0 s failures 3, 3a, 4, 6, and 7 (see figures 4 and 6) c1 = 1 nf; c2 = 0; r1 = 125 c1 = c2 = 3.3 nf; r1 = 125 1.2 1.5 1.9 2.2 s t canh(min) minimum dominant time for wake ? up on pin canh low power modes; v bat = 12 v 7 38 s t canl(min) minimum dominant time for wake ? up on pin canl low power modes; v bat = 12 v 7 38 s t det failure detection time normal mode failure 3 and 3a failure 4, 6 and 7 1.6 0.3 8.0 1.6 ms low power modes; v bat = 12 v failure 3 and 3a failure 4 and 7 1.6 0.1 8.0 1.6 ms t rec failure recovery time normal mode failure 3 and 3a failure 4 and 7 failure 6 0.3 7 125 1.6 38 750 ms s s low power modes; v bat = 12 v failures 3, 3a, 4, and 7 0.3 1.6 ms d pc pulse ? count difference between canh and canl normal mode and failures 1, 2, 4, and 6a failure detection (pin err becomes low) failure recovery (pin err becomes high) 4 4 ?
amis ? 41682, amis ? 41683 http://onsemi.com 12 amis ? 4168x rtl rth canh canl gnd battery wake vbat en err stb rxd txd vcc inh 2 1 3 4 5 6 7 8 9 10 11 12 13 14 +5v 20 pf r 1 r 1 c 1 c c 2 pc20080724.1 500 500 figure 6. test circuit for dynamic 1 0.3vcc recessive 50% rxd vcanh 50% txd vcanl 10% 90% 0v 5v 10% 90% 0.7vcc 3.6v 1.4v recessive dominant pc20050511.3 figure 7. timing diagram for ac characteristics t pd(l) t pd(h) t t(d ? r) t t(r ? d)
amis ? 41682, amis ? 41683 http://onsemi.com 13 amis ? 4168x rtl rth canh canl gnd battery wake vbat en err stb rxd txd vcc inh 2 1 3 4 5 6 7 8 9 10 11 12 13 14 +5v 20 pf 4.7 nf 120 560 560 pc20050511.5 generator 120 4.7 nf 10 k 33 k 100 nf 100 nf active probe spectrum anayzer figure 8. test set ? up eme measurements figure 9. eme measurements (see figure 8)
amis ? 41682, amis ? 41683 http://onsemi.com 14 amis ? 4168x rtl rth canh canl gnd battery wake vbat en err stb rxd txd vcc inh 2 1 3 4 5 6 7 8 9 10 11 12 13 14 +5v 20 pf 1 nf 1 nf 1 nf 1 nf 125 511 511 pc20041029.5 transient generator figure 10. test circuit for schaffner tests (iso 7637 part) device ordering information part number voltage temperature range package type shipping ? amis41682canm1g 5 v ? 40 c ? 125 c soic ? 14 (pb ? free) 55 tube / tray amis41682canm1rg 5 v ? 40 c ? 125 c soic ? 14 (pb ? free) 3000 / tape & reel amis41683cann1g 3.3 v ? 40 c ? 125 c soic ? 14 (pb ? free) 55 tube / tray amis41683cann1rg 3.3 v ? 40 c ? 125 c soic ? 14 (pb ? free) 3000 / tape & reel ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d.
amis ? 41682, amis ? 41683 http://onsemi.com 15 package dimensions soic 14 case 751ap ? 01 issue a
amis ? 41682, amis ? 41683 http://onsemi.com 16 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5773 ? 3850 amis ? 41682/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative

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