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1 16.5kv esd protected, 1.8v, micro power, +125c, 1/8 unit load, rs-485/rs-422 differential receivers isl32610e, isl32611e, isl32612e the isl32610e, isl32611e, isl32612e are 16.5kv iec61000 esd protected, fractional unit load (ul), 1.8v powered, single differential receivers (rx) for balanced (e.g., rs-485) data communication. with their 85a supply currents, these receivers are optimized for low power applications, and deliver the lowest supply currents of any available single rx ic (see figure 1). to improve performance in low data rate applications with slow signal transitions, these rx feature symmetrical switching points (200mv) and increased hysteresis. the symmetrical switching points eliminate the du ty cycle distortion introduced by ?full-failsafe? type receivers (see figure 2), while the larger hysteresis increases noise immunity. receivers present a 1/8 ?unit load? to the data bus, which allows up to 256 devices on the network for large node count systems (e.g., process automa tion, remote meter reading systems). the isl32611e/isl32612e rx output is tri-statable via the re /re input. receiver inputs feature a ?fa ilsafe-if-open? design, which ensures a logic high rx output if rx inputs are floating. data rates up to 256kbps are achievable with this device at v cc =1.8v. see table 1 for a summary of each device?s features. for a companion 1.8v differential transmitter in a sot-23 package, reference the isl32613e data sheet. features ? wide supply voltage range . . . . . . . . . . . . . . . . . 1.8v to 3.6v ? ultra low quiescent supply current . . . . . . . . . 110a (max.) ? iec61000 esd protection on rs-485 bus pins . . . . 16.5kv - class 3 esd level on all other pins. . . . . . . . . . >8kv hbm ? symmetrical switching thre sholds for less duty cycle distortion (see figure 2) ? larger hysteresis for improved noise immunity . . . . . 70mv ? data rates up to 256kbps (1.8v) or 500kbps (3.3v) ? 1/8 unit load allows up to 256 devices on the rs-485 bus ? specified for +125c operation ? three state rx output available ?5v tolerant logic inputs ? pb-free (rohs compliant) applications ? industrial/process control networks, factory automation ? high node count networks ? space constrained systems ? building environmental control systems figure 1. isl3261xe reduces operating i cc by a factor of 4 from previous generation receiver ics, and operates with supply voltages as low as 1.8v figure 2. compared with a full-failsafe receiver, the symmetrical rx thresholds of the isl3261xe deliver less output duty cycle distortion when driven with slow input signals v cc (v) i cc (a) 50 500 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 isl3261xe isl3282e dynamic (256kbps) static dynamic (256kbps) static 100 150 200 250 300 350 400 450 time (4s/div) receiver input (v) receiver output (v) 0 4 -1 0 1 0 4 v cc = 3.3v, data rate = 125kbps isl3261xe isl3282e a-b october 21, 2011 fn7869.0 caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | copyright intersil americas inc. 2011. all rights reserved intersil (and design) is a trademark owned by intersil corporation or one of its subsidiaries. all other trademarks mentioned are the property of their respective owners.
isl32610e, isl32611e, isl32612e 2 fn7869.0 october 21, 2011 table 1. summary of features part number configuration no. of devices allowed on bus 1.8v, 3.3v data rate (kbps) rx enable? quiescent i cc (a) low power shutdown? pin count isl32610e rx only 256 256, 500 no 85 no 5 isl32611e rx only 256 256, 500 yes, active low 85 yes 6 isl32612e rx only 256 256, 500 yes, active high 85 yes 6 ordering information part number (notes 1, 2, 3, 4) part marking temp. range (c) package tape & reel (pb-free) pkg. dwg. # ISL32610EFHZ-T 610f -40 to +125 5 ld sot-23 p5.064 ISL32610EFHZ-T7a 610f -40 to +125 5 ld sot-23 p5.064 isl32611efhz-t 611f -40 to +125 6 ld sot-23 p6.064 isl32611efhz-t7a 611f -40 to +125 6 ld sot-23 p6.064 isl32612efhz-t 612f -40 to +125 6 ld sot-23 p6.064 isl32612efhz-t7a 612f -40 to +125 6 ld sot-23 p6.064 notes: 1. please refer to tb347 for details on reel specifications. 2. these intersil pb-free plastic packaged products employ spec ial pb-free material sets, molding compounds/die attach materials , and 100% matte tin plate plus anneal (e3 termination finish , which is rohs compliant and compatible wi th both snpb and pb-free soldering opera tions). intersil pb-free products are msl classified at pb-fr ee peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jed ec j std-020. 3. for moisture sensitivity level (msl), please see device information page for isl32610e , isl32611e , isl32612e . for more information on msl, please see tech brief tb363 . 4. the part marking is located on the bottom of the part. pin configurations isl32610e (5 ld sot-23) top view isl32612e (6 ld sot-23) top view isl32611e (6 ld sot-23) top view v cc gnd ro 1 2 3 5 4 a b r v cc gnd ro 1 2 3 6 5 4 a re b r v cc gnd ro 1 2 3 6 5 4 a re b r truth table receiving inputs output re / re (note 12) a-b ro 0 / 1 +0.2v 1 0 / 1 -0.2v 0 0 / 1 inputs open 1 1 / 0 x high-z (note 5) note: 5. low power shutdown mode (note 10, except for the isl32610e)
isl32610e, isl32611e, isl32612e 3 fn7869.0 october 21, 2011 pin descriptions pin name pin number function isl32610e isl32611e isl32612e v cc 1 1 1 system power supply input (1.8v to 3.6v). gnd 2 2 2 ground connection. ro 3 3 3 receiver output: if a > b by at least 0.2v, ro is high; if a < b by 0.2v or more, ro is low; ro = high if a and b are unconnected (floating). b 4 4 4 16.5kv iec61000 esd protected, inverting differential receiver input. re - 5 - receiver output enable. ro is enabled when re is low; ro is high impedance when re is high. if the enable function isn?t needed, connect re to gnd. re is internally pulled low. re - - 5 receiver output enable. ro is enabled when re is high; ro is high impedance when re is low. if the enable function isn?t needed, connect re to v cc through a 1k ? or greater resistor. re is internally pulled high. a 5 6 6 16.5kv iec61000 esd protected, noninverting differential receiver input. typical operating circuit 0.1f + r 4 6 1 3 5 2 v cc gnd ro re a b +1.8v 0.1f + d 6 4 2 3 1 5 v cc gnd de di y z +1.8v isl32611e isl32613e
isl32610e, isl32611e, isl32612e 4 fn7869.0 october 21, 2011 ( absolute maximum rating s thermal information v cc to ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7v input voltages re , re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3v to 7v a, b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8v to +12.5v output voltages ro. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3v to (v cc +0.3v) esd rating . . . . . . . . . . . . . . see ?electrical specifications? table page 5 latch-up (per jesd78, level 2, class a) . . . . . . . . . . . . . . . . . . . . . +125c thermal resistance (typical) ja (c/w) jc (c/w) 5 ld sot-23 package (note 6, 7) . . . . . . . 190 120 6 ld sot-23 package (note 6, 7) . . . . . . . 177 120 maximum junction temperature (plastic package) . . . . . . . . . . . +150c storage temperature range. . . . . . . . . . . . . . . . . . . . . . . -65c to +150c pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/ pbfree/pb-freereflow.asp recommended operating conditions temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40c to +125c supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8v to 3.3v common mode input voltage v cc = 1.8v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2v to +2v v cc = 3.3v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7v to +12v caution: do not operate at or near the maximum ratings listed for extended periods of time. exposure to such conditions may adv ersely impact product reliability and result in failures not covered by warranty. notes: 6. ja is measured with the component mounted on a high effective thermal conductivity test board in free air. see tech brief tb379 for details. 7. for jc , the ?case temp? location is taken at the package top center. electrical specifications test conditions: v cc = 1.8v; unless otherwise specified. typicals are at v cc = 1.8v, t a = +25c. boldface limits apply over the operating temperature range, -40c to +125c. (note 9) parameter symbol test conditions temp (c) min (note 8) typ max (note 8) units dc characteristics logic input high voltage (note 12) v ih re , re v cc = 1.8v full 1.2 --v 3v v cc 3.6v full 2 --v logic input low voltage (note 12) v il re , re v cc = 1.8v full - - 0.45 v 3v v cc 3.6v full - - 0.8 v logic input current (note 12) i in1 re , re v cc = 1.8v full -6 - 6 a v cc 3.6v full -12 - 12 a input current (a, b) (note 11) i in2 v cc = 0v or 1.8v v in = 2v full - - 60 a v in = -2v full -60 --a v cc = 0v or 3.6v v in = 12v full - - 125 a v in = -7v full -100 --a receiver differential threshold voltage v th -2v v cm 2v v cc = 1.8v full -0.2 - 0.2 v -7v v cm 12v 3v v cc 3.6v full -0.2 - 0.2 v receiver input hysteresis v th v cm = 0v v cc = 1.8v full - 70 - mv 3v v cc 3.6v full - 70 - mv receiver output high voltage v oh i o = -1ma, v id = 200mv full v cc - 0.4 --v receiver output low voltage v ol i o = 2ma, v id = -200mv full - - 0.4 v three-state (high impedance) receiver output current (note 12) i ozr 0v v o v cc full -1 - 1 a receiver short-circuit current i osr 0v v o v cc full - - 30 ma no-load supply current i cc re = 0v or re = v cc v cc = 1.8v full - 85 110 a 3v v cc 3.6v full - - 135 a shutdown supply current (notes 10, 12) i shdn isl32611, re = v cc , v cc 1.8v full - - 2 a isl32612, re = 0v v cc = 1.8v full - - 7 a v cc 3.6v full - - 14 a
isl32610e, isl32611e, isl32612e 5 fn7869.0 october 21, 2011 switching characteristics maximum data rate f max v id = 1v, v cm = 0v, (figure 3) v cc = 1.8v full 256 --kbps 3v v cc 3.6v full 500 --kbps receiver input to output delay t plh , t phl (figure 3) v cc = 1.8v full - 210 1000 ns v cc = 3.3v 25 - 200 - ns receiver skew | t plh - t phl |t skd (figure 3) v cc = 1.8v full - 3 125 ns v cc = 3.3v 25 - 6 - ns receiver enable to output high t zh c l = 15pf, sw = gnd, (figure 4, note 12) v cc = 1.8v full - 1100 4000 ns v cc = 3.3v 25 - 1500 - ns receiver enable to output low t zl c l = 15pf, sw = v cc , (figure 4, note 12) v cc = 1.8v full - 1100 4000 ns v cc = 3.3v 25 - 1500 - ns receiver disable from output high t hz c l = 15pf, sw = gnd, (figure 4, note 12) v cc = 1.8v full - 15 75 ns v cc = 3.3v 25 - 6 - ns receiver disable from output low t lz c l = 15pf, sw = v cc , (figure 4, note 12) v cc = 1.8v full - 15 75 ns v cc = 3.3v 25 - 6 - ns esd performance rs-485 pins (a, b) iec61000-4-2, air-gap discharge method 25 - 16.5 - kv iec61000-4-2, contact discharge method 25 - 9 - kv human body model, from bus pins to gnd 25 - 16.5 - kv all pins human body model (tested per jesd22-a114e) 25 - 8 - kv machine model (tested per jesd22-a115-a) 25 - 400 - v notes: 8. compliance to data sheet limits is as sured by one or more method s: production test, characterization and/or design. 9. currents into device pins are positive; cu rrents out of device pins are negative. voltages are referenced to ground unless ot herwise specified. 10. the isl32611e enters shdn whenever re switches high, and the isl32612e enters shdn whenever re switches low. 11. devices meeting these limits are denoted as ?1/8 unit load (1/8 ul)? transceivers. the rs-485 standard allows up to 32 unit loads on the bus, so there can be 256 1/8 ul devices on a bus. 12. not applicable to the isl32610e. test circuits and waveforms figure 3a. test circuit figure 3b. measurement points figure 3. receiver propagation delay and data rate electrical specifications test conditions: v cc = 1.8v; unless otherwise specified. typicals are at v cc = 1.8v, t a = +25c. boldface limits apply over the operating temperature range, -40c to +125c. (note 9) (continued) parameter symbol test conditions temp (c) min (note 8) typ max (note 8) units signal generators r ro re / re a b gnd / v cc 15pf ro +0.5v -0.5v t plh 0v 0v v oh v ol 50% 50% t phl a b
isl32610e, isl32611e, isl32612e 6 fn7869.0 october 21, 2011 figure 4a. test circuit figure 4b. measurement points figure 4. receiver enable and disable times (excluding isl32610e) test circuits and waveforms (continued) 1k ? vcc gnd sw parameter a sw t hz +1v gnd t lz -1v v cc t zh +1v gnd t zl -1v v cc signal generator r ro a b 15pf re / re ro v cc 0v 50% 50% v oh 0v 50% v oh - 0.25v t hz ro v cc v ol 50% v ol + 0.25v t lz re output high output low t zl t zh v cc 0v 50% 50% re
isl32610e, isl32611e, isl32612e 7 fn7869.0 october 21, 2011 application information features these devices utilize a differential input receiver for maximum noise immunity and common mode rejection. input sensitivity is 200mv, as required by the rs-422 and rs-485 standards. these receivers? symmetrical 200mv switching thresholds deliver less duty cycle distortion than similar receivers with a full-failsafe design (i.e., skewed low/high input thresholds, (such as -200mv/-20mv) which increase the high bit width). this distortion is especially noticeable when the rx is driven by slow input transitions (see figure 2). the symmetrical input thresholds also allow more room for increased input hysteresis, thereby increasing the rx noise immunity. the 70mv hysteresis of this rx is twice the amount specified for most full-failsafe devices. receiver input resistance of 96k ? surpasses the rs-422 specification of 4k ? , and is eight times the rs-485 ?unit load (ul)? requirement of 12k ? minimum. thus, these products are known as ?one-eighth ul? receiver s, and there can be up to 256 of these devices on a network while still complying with the rs-485 loading specification. receiver inputs function with common mode voltages (cmv) of 2v with v cc = 1.8v, and with cmvs of -7v to +12v for v cc 2.7v. all the receivers include a ?fa ilsafe-if-open? function that guarantees a high level receiver output if the receiver inputs are unconnected (floating). as mentio ned previously, the full-failsafe function is not implemented in order to deliver output duty cycles that better match the input. receivers support data rates up to 256kbps (v cc = 1.8v) or 500kbps (v cc 3v), and receiver outputs of the isl32611e and isl32612e are three-statab le via the active low re or active high re input. data rate recommendations when coupled with the isl32613e or isl32614e 1.8v transmitter ics, these receivers are useful for networks up to 4000? (1220m) long, or for data rates up to 500kbps. for 4000? distances with v cc = 1.8v, the isl32613e can be used with any of these receivers at data rates 50kbps. with v cc =3.3v, any transmitter / receiver combinatio n operates over 4000? at rates up to 128kbps. shorter networks allow data rates up to 500kbps, as shown in figures 9, 10, 11 and 12. network termination resistors are only recommended for networks operating at v cc 2.7v, and using termination resistors may allow for higher data rates. low power shutdown mode (isl32611e and isl32612e) these devices use a fraction of the power required by most differential receivers (see figure 1 on page 1), but they also include a shutdown feature that reduces the already low quiescent i cc even further. the isl32611e and isl32612e enter shutdown whenever the receiver is disabled (re = gnd or re =v cc ). esd protection all pins on these devices include class 3 (>6kv) human body model (hbm) esd protection structures, but the bus pins (rx inputs) incorporate advanced structures allowing them to survive esd events in excess of 16.5kv hbm and 16.5kv iec61000. the bus pins are particularly vulnerable to esd damage because they typically connect to an exposed port on the exterior of the finished product. simply touching the port pins, or connecting a cable, can cause an esd event that might destroy unprotected ics. these new esd structures protect the device whether or not it is powered up, and without degrading the common mode range. this built-in esd protection eliminates the need for board-level protection structur es (e.g., transient suppression diodes), and the associated, unde sirable capacitive load they present. iec61000-4-2 testing the iec61000 test method applies to finished equipment, rather than to an individual ic. therefore, the pins most likely to suffer an esd event are those that are ex posed to the outside world (the bus pins in this case), and the ic is tested in its typical application configuration (power applied) rath er than testing each pin-to-pin combination. the smaller value current limiting resistor coupled with the larger charge storage capa citor yields a test that is much more severe than the hbm test. the extra esd protection built into this device?s bus pins allows the design of equipment meeting level 4 criteria without the need for additional board-level protection on the i/o port. air-gap discharge test method for the air-gap discharge test method, a charged probe tip moves toward the ic pin until the voltage arcs to it. the current waveform delivered to the ic pin depends on approach speed, humidity, temperature, etc., so it is difficult to obtain repeatable results. the a and b pins withstand 16.5kv air-gap discharges. contact discharge test method during the contact discharge test , the probe contacts the tested pin before the probe tip is energized, thereby eliminating the variables associated with the air- gap discharge. the result is a more repeatable and predictable test, but equipment limits prevent testing devices at volt ages higher than 9kv. the isl32610e, isl32611e, isl32612e survive 9kv contact discharges on the bus pins.
isl32610e, isl32611e, isl32612e 8 fn7869.0 october 21, 2011 typical performance curves t a = +25c; unless otherwise specified figure 5. receiver output cu rrent vs receiver output voltage (v cc = 1.8v) figure 6. receiver output cu rrent vs receiver output voltage (v cc = 3.3v) figure 7. static supply current vs temperature figure 8. dynamic supply current vs supply voltage at different data rates figure 9. isl32613e and isl32611e performance with v cc = 1.8v, 128kbps, 2000? (610m) cat 5 cable figure 10. isl32613e and isl32611e performance with v cc = 3.3v, 256kbps, 3000? (915m) cat 5 cable receiver output voltage (v) receiver output current (ma) -6 -4 -2 0 2 4 6 8 10 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 +125c +25c +25c +85c +125c v cc = 1.8v ro low ro high receiver output voltage (v) receiver output current (ma) -30 -20 -10 0 10 20 30 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 +125c +25c +25c +85c +125c +85c v cc = 3.3v ro low ro high temperature (c) i cc (a) -40 -15 10 35 60 85 110 125 50 60 70 80 90 100 110 120 v cc = 1.8v v cc = 3.3v re = 0v, re = v cc v cc (v) i cc (a) 70 75 80 85 90 95 100 105 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 128kbps 9.6kbps 500kbps 256kbps time (10s/div) receiver inputs (v) receiver output (v) -1 0 1 2 2 0 2 -2 1 0 rd = a-b di driver input (v) time (10s/div) receiver inputs (v) receiver output (v) -2 0 1 2 5 0 4 -3 2 0 driver input (v) rd = a-b di -1 3
isl32610e, isl32611e, isl32612e 9 fn7869.0 october 21, 2011 figure 11. isl32614e and isl32611e performance with v cc = 1.8v, 256kbps, 1000? (305m) cat 5 cable figure 12. isl32614e and isl32611e performance with v cc = 3.3v, 500kbps, 2000? (610m) cat 5 cable die characteristics substrate potential (powered up) : gnd process: si gate bicmos typical performance curves t a = +25c; unless otherwise specified (continued) time (10s/div) receiver inputs (v) receiver output (v) -1 0 1 2 2 0 2 -2 1 0 rd = a-b di driver input (v) time (4s/div) receiver inputs (v) receiver output (v) -3 0 1 2 5 0 4 -4 2 0 driver input (v) -1 3 a-b di 4 -2 rd =
isl32610e, isl32611e, isl32612e 10 intersil products are manufactured, assembled and tested utilizing iso9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality intersil products are sold by description only. intersil corporat ion reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnished by intersil is believed to be accurate and reliable. however, no responsi bility is assumed by intersil or its subsid iaries for its use; nor for any infringem ents of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of i ntersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com fn7869.0 october 21, 2011 for additional products, see www.intersil.com/product_tree products intersil corporation is a leader in the design and manufacture of high-performance analog semico nductors. the company's product s address some of the industry's fastest growing markets, such as , flat panel displays, cell phones, handheld products, and noteb ooks. intersil's product families address power management and analog sign al processing functions. go to www.intersil.com/products for a complete list of intersil product families. for a complete listing of applications, rela ted documentation and related parts, please see the respective device information p age on intersil.com: isl32610e, isl32611e, isl32612e to report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff fits are available from our website at: http://rel.intersil.co m/reports/search.php revision history the revision history provided is for informational purposes only and is believed to be accurate, but not warranted. please go t o web to make sure you have the latest revision. date revision change 10/21/2011 fn7869.0 initial release
isl32610e, isl32611e, isl32612e 11 fn7869.0 october 21, 2011 package outline drawing p5.064 5 lead small outline tran sistor plastic package rev 3, 4/11 notes: detail "x" side view typical recommended land pattern top view 5x (1.2) 5x (0.60) (2x 0.95) (2.4) see detail x 8 3 3 (1.90) 0.10 (0.004) c 5 2 4 end view 0.55 0.35 3.00 2.80 (1.90) 0.50 0.30 3.00 2.60 (0.95) 0.20 (0.008) c m 1.70 1.50 0 0.22 0.08 5 gauge plane seating c plane (0.60) 4 0.25 0.10 0.10 min 8 0 (0.25) 1.30 0.90 1.45 0.90 0.15 0.00 c seating plane 5 3 4 1. dimensioning and tolerance per asme y14.5m-1994. 2. package conforms to eiaj sc-74 and jedec mo178aa. 3. package length and width are exclusive of mold flash, protrusions, or gate burrs. 4. footlength measured at reference to gauge plane. 5. lead thickness applies to the flat section of the lead between 6. controlling dimension: millimeter. 0.08mm and 0.15mm from the lead tip. dimensions in ( ) for reference only.
isl32610e, isl32611e, isl32612e 12 fn7869.0 october 21, 2011 package outline drawing p6.064 6 lead small outline transistor plastic package rev 4, 2/10 dimension is exclusive of mold flash, protrusions or gate burrs. package conforms to jedec mo-178ab. foot length is measured at reference to guage plane. dimensions in ( ) for reference only. dimensioning and tolerancing conform to asme y14.5m-1994. 5. 3. 4. 2. dimensions are in millimeters. 1. notes: detail "x" side view typical recommended land pattern top view end view index area pin 1 seating plane gauge 0.450.1 (2 plcs) 10 typ 4 1.90 0.40 0.10 2.90 0.10 0.95 1.60 +0.15/-0.10 2.80 0.00-0.15 1.15 +0.15/-0.25 0.20 c a-b d m (1.20) (0.60) (0.95) (2.40) 0.10 c 0.08-0.22 see detail x (0.25) 1.45 max (0.60) 0-8 c b a d 3 3 3 3 0.20 c 2x 123 654 plane

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