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| il41050 isoloop ? is a registered trademark of nve corporation. *u.s. patent number 5,831, 426; 6,300,617 and others. rev. j nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation isolated high-speed can transceiver functional diagram txd rxd canh canl il41050 s v dd2 (v) txd ( 1 ) s canh canl bus state rxd 4.75 to 5.25 low ( 2 ) high low dominant low 4.75 to 5.25 x high v dd2 /2 v dd2 /2 recessive high 4.75 to 5.25 x v dd2 /2 v dd2 /2 recessive high <2v (no pwr) x x 0 il41050 2 nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation absolute maximum ratings (1) (2) parameters symbol min. typ. max. units test conditions storage temperature t s ? 55 150 c ambient operating temperature t a ? 55 135 c dc voltage at canh and canl pins v canh v canl ? 27 40 v 0 v< v dd2 < 5.25 v; indefinite duration supply voltage v dd 1 , v dd 2 ? 0.5 6 v digital input voltage v txd , v s ? 0.3 v dd + 0.3 v digital output voltage v rxd ? 0.3 v dd + 0.3 v dc voltage at v ref v ref ? 0.3 v dd + 0.3 v transient voltage at canh or canl v trt ( can ) ? 200 200 v electrostatic discharge at all pins v esd ? 4,000 4,000 v human body model electrostatic discharge at all pins v esd ? 200 200 v machine model recommended operating conditions parameters symbol min. typ. max. units test conditions supply voltage v dd 1 v dd 2 3.0 4.75 5.5 5.25 v input voltage at any bus terminal (separately or common mode) v canh v canl ? 12 12 v high-level digital input voltage (3) (4) v ih 2.0 2.4 2.0 v dd 1 v dd 1 v dd 2 v v dd 1 = 3.3 v v dd 1 = 5.0 v v dd 2 = 5.0 v low-level digital input voltage (3) (4) v il 0 0.8 v digital output current (rxd) i oh ? 8 8 ma v dd1 = 3.3v to 5v ambient operating temperature t a ? 55 125 c digital input signal rise and fall times t ir , t if 1 s insulation specifications parameters symbol min. typ. max. units test conditions creepage distance (external) 8.08 mm barrier impedance > 10 14 || 7 ? || pf leakage current 0.2 a rms 240 v rms , 60 hz safety and approvals iec61010-2001 tuv certificate numbers: n1502812 (pending) classification: reinforced insulation model package pollution degree mate rial group max. working voltage il41050 soic (0.15" and 0.3") ii iii 300 v rms ul 1577 component recognition program file number: e207481 rated 2,500v rms for 1 minute soldering profile per jedec j-std-020c moisture sensitivity level: msl=2 notes: 1. absolute maximum specifications mean the device will not be damaged if operated under these conditions. it does not guarante e performance. 2. all voltages are with resp ect to network ground except differential i/o bus voltages. 3. the txd input is edge sensitive. voltage magnitude of the i nput signal is specified, but edge rate specifications must also be met. 4. the maximum time allowed for a logic transition at the txd input is 1 s. il41050 3 nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation il41050-3 pin connections (0.15" soic package) 1 v dd1 v dd1 power supply input 2 gnd 1 v dd1 power supply ground return 3 t d transmit data input 4 rxd receive data output 5 nc no internal connection 6 nc no internal connection 7 nc no internal connection 8 nc no internal connection 9 isorxd isolated rxd output. no connection should be made to this pin. 10 canl low level canbus line 11 v dd2 v dd2 can i/o bus circuitry power supply input* 12 canh high level canbus line 13 s mode select input. leave open or set low for normal operation; set high for silent mode. 14 isotxd isolated txd output. no connection should be made to this pin. 15 gnd 2 v dd2 power supply ground return 16 v dd2 v dd2 isolation power supply input* v dd1 v dd2 gnd 1 nc gnd 2 txd isotxd rxd s nc canh nc v dd2 canl nc isorxd il41050 pin connections (0.3" soic package) 1 v dd1 v dd1 power supply input 2 gnd 1 v dd1 power supply ground return (pin 2 is internally connected to pin 8) 3 txd transmit data input 4 nc no internal connection 5 rxd receive data output 6 nc no internal connection 7 nc no internal connection 8 gnd 1 v dd1 power supply ground return (pin 8 is internally connected to pin 2) 9 gnd 2 v dd2 power supply ground return (pin 9 is internally connected to pin 15) 10 v ref reference voltage output (nominally 50% of v dd2 ) 11 v dd2 v dd2 can i/o bus circuitry power supply input* 12 canl low level canbus line 13 canh high level canbus line 14 s mode select input. leave open or set low for normal operation; set high for silent mode. 15 gnd 2 v dd2 power supply ground return (pin 15 is internally connected to pin 9) 16 v dd2 v dd2 isolation power supply input* nc v dd2 gnd 1 nc gnd 2 s canh rxd canl v ref gnd 1 v dd1 gnd 2 txd nc v dd2 *note: pin 11 is not internally connected to pi n 16; both should be connected to the v dd2 power supply for normal operation. il41050 4 nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation specifications electrical specifications are t min to t max and v dd1 , v dd2 = 4.75 v to 5.25 v unless otherwise stated. parameters symbol min. typ. max. units test conditions power supply current quiescent supply current (recessive) iq vdd1 1 0.7 1.75 1.4 3.0 2.0 ma dr = 0 bps; v dd 1 = 5 v dr = 0 bps; v dd 1 = 3.3 v dynamic supply current (dominant) i vdd1 1.2 0.9 2.0 1.6 3.2 2.2 ma dr = 1 mbps, r l = 60 ; v dd 1 = 5 v dr = 1 mbps, r l = 60 ; v dd 1 = 3.3 v quiescent supply current (recessive) dynamic supply current (dominant) iq vdd2 i vdd2 3.5 26 6.75 52 13 78 ma 0 bps 1 mbps, r l = 60 transmitter data input (txd) (1) high level input voltage v ih 2.4 5.25 v v dd 1 = 5 v; recessive high level input voltage v ih 2.0 3.6 v v dd 1 = 3.3 v; recessive low level input voltage v il ? 0.3 0.8 v output dominant txd input rise and fall time (2) tr 1 s 10% to 90% high level input current i ih ? 10 10 a v txd = v dd 1 low level input current i il 10 10 a v txd = 0 v mode select input (s) high level input voltage v ih 2.0 v dd 2 + 0.3 v silent mode low level input voltage v il ? 0.3 0.8 v high-speed mode high level input current i ih 20 30 45 a v s = 2 v low level input current i il 15 30 10 a v s = 0 v receiver data output (rxd) high level output current i oh ? 2 ? 8.5 ? 20 ma v rxd = 0.8 v dd1 low level output current i ol 2 8.5 20 ma v rxd = 0.45 v failsafe supply voltage ( 4 ) v dd2 3.6 3.9 v reference voltage output (v ref ) reference voltage output v ref 0.45 v dd2 0.5 v dd2 0.55 v dd2 v ? 50 a il41050 5 nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation specifications (...cont.) electrical specifications are t min to t max and v dd1 , v dd2 = 4.5 v to 5.5 v unless otherwise stated. differential inpu t capacitance c i ( dif ) 3.75 10 pf v txd = v dd1 input leakage current at canh i li ( canh ) 100 170 250 a v canh = 5 v, v dd2 = 0 v input leakage current at canl i li ( canl ) 100 170 250 a v canl = 5 v, v dd2 = 0 v thermal shutdown shutdown junction temperature t j( sd ) 155 165 180 c timing characteristics txd to bus active delay t d(txd-buson) 29 32 63 66 125 128 ns v s = 0 v; v dd1 = 5 v v s = 0 v; v dd1 = 3.3 v txd to bus inactive delay t d(txd-busoff) 29 32 68 71 110 113 ns v s = 0 v; v dd1 = 5 v v s = 0 v; v dd1 = 3.3 v bus active to rxd delay t d(buson-rxd) 24 27 58 61 125 128 ns v s = 0 v; v dd1 = 5 v v s = 0 v; v dd1 = 3.3 v bus inactive to rxd delay t d(busoff-rxd) 49 52 103 106 170 173 ns v s = 0 v; v dd1 = 5 v v s = 0 v; v dd1 = 3.3 v loop delay low-to-high or high-to-low t loop 53 180 210 ns v s = 0 v txd dominant time for timeout t dom(txd) 250 457 765 s v txd = 0 v 3.0 v > v dd1 < 5.5 v magnetic field immunity (3) v dd1 = 5 v, v dd2 = 5 v power frequency magnetic immunity h pf 2,500 3,000 a/m 50 hz/60 hz pulse magnetic field immunity h pm 3,000 3,500 a/m t p = 8 s cross-axis immunity multiplier k x 1.8 figure 1 v dd1 = 3.3 v, v dd2 = 5 v power frequency magnetic immunity h pf 1,000 1,500 a/m 50 hz/60 hz pulse magnetic field immunity h pm 1,800 2,000 a/m t p = 8 s cross-axis immunity multiplier k x 1.5 figure 1 notes: 1. the txd input is edge sensitive. voltage magnitude of the i nput signal is specified, but edge rate specifications must also be met. 2. the maximum time allowed for a logic transition at the txd input is 1 s. 3. uniform magnetic field applied across the pins of the device . cross-axis multiplier effective when field is applied perpendi cular to the pins. 4. if v dd2 falls below the specified failsafe supply voltage, rxd will go high. electrostatic discharge sensitivity this product has been tested for electros tatic sensitivity to the limits stated in the specifications. however, nve recommends that all integrated circuits be handled with appropriate care to avoid damage. damage caused by inappropriate handling or storage could range from performance degradation to complete failure. electromagnetic compatibility the il41050 is fully compliant with generic emc standards en50081, en50082-1 and the umbrella line-voltage standard for informa tion technology equipment (ite) en61000. the isol oop isolator?s wheatstone bridge configur ation and differential magnetic field sign aling ensure excellent emc performance agai nst all relevant standards. nve conducted compliance test s in the categories below: en50081-1 residential, commercia l & light industrial methods en55022, en55014 en50082-2: industrial environment methods en61000-4-2 (esd), en61000-4-3 (ele ctromagnetic field immuni ty), en61000-4-4 (electrical transient immunity), en61000-4-6 (rfi immunity), en61000-4-8 (power frequency magnetic field immunity), en61000-4-9 (pulsed magnetic field), en61000-4-10 (damped oscillatory magnetic field) env50204 radiated field from digita l telephones (immunity test) immunity to external magnetic fields is higher if the field dire ction is ?end-to-end? (rather than to ?pin-to-pin?) as shown in the diagram at right. fig. 1 il41050 6 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com application information v dd2 power supply pins both v dd2 power supply inputs (pins 11 and 16) must be connected to the bus-side power supply. pin 11 powers the bus side of the can i/o circuitry, while pin 16 powers the bus-side isolation circuitry. for testing purposes, they are not internal ly connected, but t he part will not operate without both pins powered, and operation w ithout both pins powered can cause damage. power supply decoupling both v dd1 and v dd2 must be bypassed with 100 nf ceramic ca pacitors. these supply the dynamic current required for the isolator switching and should be placed as cl ose as possible to v dd and their respective ground return pins. input configurations the txd input should not be left open as th e state will be indeterminat e. if connected to an open-drain or open collector outpu t, a pull-up resistor (typically 16 k ) should be connected from the input to v dd 1 . the mode select (?s?) input has a nominal 150 k internal pull-down resistor. it can be left open or set low for normal operation. dominant mode time-out and failsafe receiver functions can bus latch up is prevented by an integrated dominant mode tim eout function. if the txd pin is forced permanently low by hard ware or software application failure, the ti me-out returns the rxd output to the high state no more than 765 s after txd is asserted dominant. the timer is triggered by a negative edge on txd. if the duration of the low is longer than the internal timer value, the transmitter is disabled, driving the bus to the recessive state. the timer is reset by a positive edge on pin txd. if power is lost on vdd2, the il41050 asserts the rxd output high when the supply voltage falls below 3.8 v. rxd will return to normal operation as soon as vdd2 rises above approximately 4.2 v. programmable power-up a unique non-volatile progra mmable power-up feature prevents unstable nodes. a state that needs to be present at node power up can be programmed at the last power down. for example if a can node is required to ?pulse? dominant at pow er up, txd can be sent low b y the controller immediately prior to power down. when power is re sumed, the node will immediately go dominant allowing self-check co de in the microcontroller to verify node operation. if desired, the node can also power up silently by presetting the txd line high at po wer down. at the next power on, the il41050 will remain silent, awaiting a dominant state from the bus. the microcontroller can check that the can node powered down correctly before applying power at th e next ?power on? request. if the node powered down as intended, rxd will be set high and stored in il41050?s non-volatile memory. the level stored in the rxd bit can be read before isolated node power is en abled, avoiding possible can bus disruption due to an unstable node. replacing non-isolated transceivers the il41050 is designed to replace common non-isolated can transceivers such as the ph ilips/nxp tja1050 with minimal circuit ch anges. some notable differences: ? some non-isolated can transceive rs have internal txd pull-up resistors, but th e il41050 txd input should not be left open. if connected to an open-drain or open collector output, a pull-up resistor (typically 16 k ) should be connected from the input to v dd 1 . ? initialization behavior varies between can transceivers. to ensure the desired power-up state, the il41050 should be initialize d with a txd pulse (low-to-high for recessive initiali zation), or shut down the transceiver in the desired power-up state (the ?programm able power-up feature?). ? many non-isolated can tr ansceivers have a v ref output. such a reference is availa ble on the il41050 wide-body version. the vref output v ref is a reference voltage output used to drive bus threshold co mparators in some legacy system s and is provided on the il41050 wi de-body version. the output is half of the bus supply 10% ( i.e., 0.45 v dd 2 < v ref < 0.55 v dd 2 ), and can drive up to 50 a. isorxd / isotxd outputs the isorxd and isotxd outputs are isolated versions of the rxd and txd signals. these outputs are provided on the narrow-body version for troubleshooting, but normally no connecti ons should be made to the pins. il41050 7 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com the isolation advantage battery fire caused by over or under charging of individual lithium ion cells is a major concern in multi-cell high voltage ele ctric and hybrid vehicle batteries. to combat this, each cell is monitored for current flow, cell voltage, and in some advanced batteries, magne tic susceptibility. the il41050 allows seamless connection of the monitoring electronics of every cell to a common can bus by el ectrically isolatin g inputs from outputs, effectively isolat ing each cell from all other cells. cell status is then monitored via the can controller in the batt ery management system (bms). another major advantage of isola tion is the tremendous increase in noise immunity it affords the can node, even if the power so urce is a battery. inductive drives and inverters can produce transient swings in excess of 20 kv/ s. the traditional, non-isolated can node provides some protection due to differential signaling and symmetrical driver/r eceiver pairs, but the il41050 typically provides more than tw ice the dv/dt protection of a traditional can node. txd rxd canl tx0 rx0 adr 0...7, cs xtal1 xtal2 sja1000 canh il41050 fig. 2. isolated can node using the il41050 and an sja1000 mcu. il41050 8 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com package drawings, dimensions and specifications 0.15" 16-pin soic package 0.054 (1.4) 0.072 (1.8) 0.040 (1.0) 0.060 (1.5) 0.016 (0.4) 0.050 (1.3) 0.386 (9.8) 0.394 (10.0) pin 1 identified by either an indent or a marked dot nom 0.228 (5.8) 0.244 (6.2) 0.152 (3.86) 0.157 (3.99) dimensions in inches (mm) 0.007 (0.2) 0.013 (0.3) 0.004 (0.1) 0.012 (0.3) 0.040 (1.02) 0.050 (1.27) 0.013 (0.3) 0.020 (0.5) pin spacing is a basic dimension; tolerances do not accumulate note: 0.3" 16-pin soic package nom pin 1 identified by either an indent or a marked dot 0.287 (7.29) 0.300 (7.62) dimensions in inches (mm) 0.08 (2.0) 0.10 (2.5) 0.092 (2.34) 0.105 (2.67) 0.397 (10.1) 0.413 (10.5) 0.013 (0.3) 0.020 (0.5) 0.394 (10.00) 0.419 (10.64) 0.040 (1.0) 0.060 (1.5) 0.004 (0.1) 0.012 (0.3) 0.007 (0.2) 0.013 (0.3) 0.016 (0.4) 0.050 (1.3) pin spacing is a basic dimension; tolerances do not accumulate note: il41050 9 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com ordering information and valid part numbers il 4 1050 t -3 e tr13 bulk packaging blank = tube (50 pcs) tr7 = 7'' tape and reel (800 pcs; 0.15'' soic only) tr13 = 13'' tape and reel (3,000 pcs 0.15'' soic or 1,500 pcs 0.3'' soic) package e = rohs compliant package type blank = 0.3'' soic -3 = 0.15'' soic temperature range t = extended (-55?c to +125?c) channel configuration 1050 = can transceiver base part number 4 = isolated transceiver product family il = isolators valid part numbers IL41050TE IL41050TE tr13 il41050t-3e il41050t-3e tr7 il41050t-3e tr13 rohs compliant il41050 10 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com revision history isb-ds-001-il41050-j february 2012 changes ? update terms and conditions. isb-ds-001-il41050-i june 2011 changes ? added loop delay specifications (p. 5). isb-ds-001-il41050-h june 2011 changes ? ul approval no longer ?pending? (p. 2). ? clarified v dd2 power supply connections with note on pinouts page (p. 3) and new explanatory ?application information? paragraph (p. 6). isb-ds-001-il41050-g february 2011 changes ? added ?input configurations,? ?replacing non-isolated transcei vers,? ?the vref output,? and ?isorxd/isotxd outputs? application information (p. 6). isb-ds-001-il41050-f april 2010 changes ? added 7-inch tape-and-reel bulk packaging option (tr7) for narrow-body parts (p. 8). isb-ds-001-il41050-e march 2010 changes ? changed narrow-body pinouts for pins 9, 10, 12, 13, and 14 (p. 3). isb-ds-001-il41050-d march 2010 changes ? added 0.15" narrow-body soic package. ? added failsafe supply voltage specification and related note 4. isb-ds-001-il41050-c february 2010 changes ? extended min. operating temperature to ? 55c. ? misc. changes and clarifica tions for final release. isb-ds-001-il41050-b january 2010 change ? clarified txd edge trigger mode. added information to applications section. ? tightened timing specifications based on qualification data. isb-ds-001-il41050-a january 2010 change ? initial release. il41050 11 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com datasheet limitations the information and data provided in datasheets shall define the specification of the product as agreed between nve and its cus tomer, unless nve and customer have explicitly agreed otherwise in writing. all specifica tions are based on nve test protocols. in no event however, shall an agreement be valid in which the nve product is deemed to offer func tions and qualities beyond those described in the datasheet. limited warranty and liability information in this document is believed to be accurate and reliable. however, nve do es not give any representations or warrant ies, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. in no event shall nve be liable for any indirect, incidental, pu nitive, special or consequential damages (including, without li mitation, lost profits, lost savings, business interruption, costs related to the removal or repl acement of any products or rewo rk charges) whether or not s uch damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. right to make changes nve reserves the right to make changes to information publishe d in this document including, without limitation, specifications and product descriptions at any time and without notice. this document supersedes an d replaces all information supplied prior to its publication. use in life-critical or safety-critical applications unless nve and a customer explicitly agree otherwise in writing, nve products are not designed, aut horized or warranted to be suitable for use in life support, life-critical or safety-critical devices or equipment. nve accepts no liability for inclusion or use of nve products i n such applications and such inclusion or use is at the customer?s own risk. should the customer use nve products for such application whether authorized by nve or not, the customer shall indemnify and hold nve harmless against all claims and damages. applications applications described in this datasheet are illustrative only. nve makes no representation or wa rranty that such applications will be suitable for the specified use without furthe r testing or modification. customers are responsible for the design and operation of their a pplications and products using nve products, and nve accepts n o liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nve prod uct is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party cust omers. customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nve does not accept any liability related to an y default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer s. the customer is responsible for all ne cessary testing for the customer?s applications and products using nve products in order to avoid a default of the applications and the products or of the application or use by customer?s third party customers. nve accepts no liability in this respect. limiting values stress above one or more limiting values (as defined in the abso lute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the recommended operating conditions of the datasheet is not warranted. constant or repeated exposure to limiting values will permanently and i rreversibly affect the quality and reliability of the device. terms and conditions of sale in case an individual agreement is concl uded only the terms and conditions of the respective agreement shall apply. nve hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nve products by customer. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, con veyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. export control this document as well as the items described herein may be s ubject to export control regulati ons. export might require a prior authorization from national authorities. automotive qualified products unless the datasheet expressly states that a specific nve product is automotive qualified, the product is not suitable for auto motive use. it is neither qualified nor tested in accordance with automotive testing or application requirements. nve accepts no liability for inclusion or use of non-automotive qualified products in automotive equipment or applications. in the event that customer uses the product for design-in and us e in automotive applications to automotive specifications and s tandards, customer (a) shall use the product without nve?s warranty of the product for such automotive applicati ons, use and specifications, and (b) wheneve r customer uses the product for automotive applications beyond nve?s specifications such use shall be solely at customer?s own risk, and (c) custom er fully indemnifies nve for any liability, damages or failed product claims resulting from customer design and use of the product for automotive ap plications beyond nve?s standard warranty and nve?s product specifications. il41050 12 nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax (952) 829- 9189 internet: www.isoloop.com an iso 9001 certified company nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax: (952) 829-9189 www.nve.com e-mail: iso-info@nve.com ?nve corporation all rights are reserved. reproduction in whole or in part is prohibited without the prior writte n consent of the copyright owne r. isb-ds-001-il41050-j february 2012 |
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