TH8050 TH8050 high speed can transceiver preliminary datasheet rev. 0. 9 1 june 1999 description this high-speed can-transceiver connects a can protocol controller and the physical bus lines and is intended for high speed applications up to 1 mbaud, acco r - ding to iso 11898. features q pin- and parameter compatible to philips pca82c250 q fully compatible to iso/dis 11898 standard q high speed connection, up to 1 mbaud q protection of bus outputs against automot i - ve transients q short-circuit proof to battery and ground q standby mode with very low power co n - sumption q low current consumption also in active mode q low radio frequency interferences q supply voltage: 5 v 10 % q operating temperature range: -40 .. +125 c applications high speed can-applications up to 1 mbaud block diagram mode detection slew rate control high speed control high speed comparator input divider current control current limiter high-side driver current control current limiter low-side driver rs tx0 rx0 canl canh ref figure. 1 - block di a gram
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 2 june 1999 functional descri p tion the TH8050 conforms to the iso/dis 11898 standard. it is suitable for use in high-speed can applic a tions up to a maximum of 1 mbaud. power consumption is kept to an absolute min i - mum both in active operation, in the standby mode and in the event of an error by a current- limiting circuit. the outputs are short circuit- proof and equipped with an integral reverse voltage protection. in case of thermal overloa d - ing, the output drivers cut out at 165 with a hysteresis of 25c, after which the drivers are reconnected. during thermal cut-out, only the output drivers are switched off while all other functions are retained. the can bus pins canh and canl are pr o - tected against schaffner pulses 1, 2, 3a and 3b. the voltage drop at the pi n r s causes analogous output driver slope co n trol. two different operating statuses can be set: 1. slope control: the signal rise and fall times are controlled with the aid of a resistor (0k w to 50k w ) between the pi n r s and gnd. the rise time is proportional to the output current at the pin r s . 2. standby, co n nection of r s to v dd : connecting v dd to the pin r s activates the standby mode. in this mode, the transmitter is switched off and the current consumption of the receiver markedly reduced. if a dominant bus signal is received, this is relayed to the pin rx0. the microcontroller is able to respond to this and return the TH8050 to the normal ope r- ating mode via the pin rs. as the receiver responds very slowly in the standby mode, the first me s sage is lost. for emc reasons, slope should always be kept to a minimum, as steeper edges always result in higher electr o magnetic emissions. in high-speed operation (1 mbaud), shielded cable should always be used due to the i n - creased flank steepness and consequent high em emissions. for transmission at 1 mbaud, a resistor with a range of 10 k w to 25 k w should be used at pin r s . for lower transmission rates or in case of short bus cables, twisted-pair or parallel conductors can be used. in this case, electromagnetic emi s - sions ar e minimized by limiting the rise and fall times of the bus signal. electrical characte r istics all voltages are refered to ground (gnd). pos i - tive currents flow into the ic. the absolute maximum ratings given in the table below are limiting values that do not lead to a permanent damage of the device but exceeding any of these limits may do so. long term exposure to limiting values may affect the reliability of the device. reliable operation of the TH8050 is only specifed within the limits shown in "reco m - mended operating cond i tions". absolute maximum ra t ings parameter symbol min max unit dc supply voltage v dd -0.3 7.0 v input voltage, pin 1,4,5 and 8 v in -0.3 vdd+0.3 v input voltage, pin 6 and 7 v in -8.0 18 v input current i in -200 200 ma storage temperature range t stg -55 1 5 0 c power dissipation p d 250 mw
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 3 june 1999 electrical characte r istics (continued) operating cond i tions parameter symbol min max unit dc supply voltage v dd 4.5 5.5 v operating temperature ra n ge t a -40 125 c junction temperature t j -40 150 c static charakte r istics vdd=4.5 ... 5.5 v, ta=-40 ... 125c, rl=60 w parameter sy m - bol condition min typ max unit dominant bus level 60 ma recessive bus level 2.5 6 ma supply current i s standby m o de 40 100 a transmitter voltage input low, pin tx0 v il output dominant 0,3*v dd v voltage input high, pin tx0 v ich output recessive 0,7*vdd v input current low, pin tx0 i inl v tx0 =1v 100 600 a input current high, pin tx0 i inh v tx0 =4v -100 10 a recessive bus volt a - ge v bus v tx0 =4v, no load 2 3 v -2v < v 6,7 < 7v -1 1 ma off-state output le a - kage current i lo -2v < v 6,7 < 18v -1 10 ma canh output voltage v canh dominant bus level 2.5 4.5 v canl output voltage v canl recessive bus level 0.5 2.0 v dominant 1.3 3.0 v dominant, r l = 45 w 1.2 v difference voltage between v canl and v canh d v bus recessive -500 +50 mv v canh =-7v v dd <5v 105 ma short circuit canh cu r rent i canhsc v canh =-7v v dd =5,5v 120 ma short circuit canl cu r rent i canls c v canl =18v 140 ma
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 4 june 1999 static charakte r istics (continued) parameter sy m - bol condition min typ max unit receiver differential input voltage, recessive v diffr v tx0 =4v -2v < v 6,7 < 12v -1 0,5 v differential input voltage, dominant v diffd v tx0 =4v -2v < v 6,7 < 12v 0,9 5 v differential input hyster e se v diffhy 150 mv output voltage high, pin rx0 v oh i rx0 =-2ma v dd -1 v dd v output voltage low, pin rx0 v ol i rx0 =2ma 0 1 v canh, canl input res i stance r i 5 25 k w differential input rersistance r diff 20 100 k w canh, canl input cap a citance c i 20 pf differential input capac i tance c diff 10 pf reference v rs = 1v | i ref | < 50a 0,45*v dd 0,55*v dd v reference output voltage v ref v rs = 4v | i ref | < 5a 0,4*v dd 0,6*v dd v high speed 0,3*v dd v slope control 0,4*v dd 0,6*v dd v input voltage, pin rs v rs standby mode 0,75*v dd v high speed v rs = 1v -500 a input current, pin rs i rs slope control -10 -200 a dynamic characteri s tics vdd=4.5 ... 5.5 v, ta=-40 ... 125c, rl=60 w par a meter sy m - bol cond i tion min typ max unit minimum bit time t bit v rs = 1v 1 0,2 s delay tx0 to bus aktiv t ontx0 v rs = 1v 50 ns delay tx0 to bus inaktiv t offtx0 v rs = 1v 80 ns v rs = 1v 120 ns r rs = 24k w 100 320 ns delay tx0 to rx0 aktiv t onrx0 r rs = 47k w 140 520 ns
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 5 june 1999 dynamic characteri s tics ( continued) par a meter sy m - bol cond i tion min typ max unit v rs = 1v 140 ns r rs = 24k w 100 320 ns delay tx0 to rx0 inaktiv t onrx0 r rs = 47k w 140 450 ns differential output voltage slew rate |sr| r rs = 47k w 10 24 v/s wake-up time from standby, via pin rs t w a ke 20 s bus dominant to rx0 low, stan d by t drx0l v rs = 4v 3 s timing diagram t ontx0 0.9v t onrx0 0.3*v dd 0.5v t offtx0 t onrx0 0.7*v dd tx0 4v 1v rx0 bus differential voltage figure. 2 - delay timing diagram rs 4v 1v rx0 v0h v0l t wake v tx0 = 1v figure. 3 - wake-up from standby
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 6 june 1999 timing diagram ( continued) bus differential voltage 1.5v 0v rx0 v0h v0l t drx0lake v tx0 = 4v, v rs = 4v figure. 4 - bus dominant to rx0 low at standby pin description TH8050 1 2 3 4 8 7 6 5 tx0 vref rx0 vdd gnd rs canh canl pin name i/o function 1 tx0 i data to transmitting ( from can controller) 2 gnd g ground 3 vdd p supply voltage 4 rx0 o data received from bus (to can controller) 5 vref o reference voltage output 6 canl i/o low level can bus connection 7 canh i/o high level can bus connection 8 rs i slope/ standby control via external resistor application ci r cuitry TH8050 can controller v dd 100nf 124 w 124 w rs ext = 10k...250k vref (ca. 0,5* v dd ) rx0 tx0 canh canl can-bus line TH8050 vref (ca. 0,5* v dd ) rs ext = 10k...250k canl canh can controller v dd 100nf rx0 tx0 figure. 5 - applic a tion circuitry
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 7 june 1999 package i nform a tion small outline package (sop) dimension : mm sop 8 150 mil d e h a a1 e b l copl a min max 4.80 5.00 3.80 4.00 5.80 6.20 1.35 1.75 0.10 0.25 1.27 0.33 0.51 0.40 1.27 0.10 0 8
TH8050 high speed can transceiver preliminary datasheet rev. 0.9 8 june 1999 important notice devices sold by thesys are covered by the warranty and patent indemnification provisions appearing in its term of sale. thesys makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. thesys reserves the right to change specifications and prices at any time and without notice. therefore, prior to designing this product into a system, it is necessary to check with thesys for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recomme n ded without additional processing by thesys for each application. the information furnished by thesys is believed to be correct and accurate. however, thesys shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to recipient or any third party shall arise or flow out of th e - sys? rendering of technical or other se r vices. ? 1995 thesys gesel l schaft fr mikroelektronik mbh. all rights reserved. 1 0 l t . 2 4 6 e thesys headquarter & joint ventures thesys sales offices thesys gesellschaft fr mikroelektronik mbh haarbergstrasse 67 d-99097 erfurt germany tel.: +49 (361) 427 6000 f: +49 (361) 427 6111 ax haarbergstrasse 67 d-99097 erfurt germany tel.: +49 (361) 427 8141 f: +49 (361) 427 6196 ax am seestern 8 d-40547 dsseldorf tel.: +49 (211) 536 02-0 f: +49 (211) 536 02-50 ax thesys-mikropribor ul. polytechnitscheskaja 33 ua-252 056 kiev ukraine tel.: +38 (044) 241 70 31 f: +38 (044) 241 70 32 telex: 131 489 elvia su ax thesys-intechna ul. plechanowskaja 8 rus-394 089 woronesh russia tel.: +7 (0732) 55 36 97 f: +7 (0732) 55 36 97 telex: 153 221 makvo su ax karl-hammerschmidt-str. 45 d-85609 aschheim-dornach tel.: +49 (89) 99 35 58-0 f: +49 (89) 99 35 58-66 ax otto-hahn-strasse 15 d-65520 bad camberg tel.: +49 (6434) 50 41 f: +49 (6434) 42 77 ax n germany e-mail: info@thesys.de http:// www.thesys.de n united kingdom 41 pavenhill, purton wiltshire, sn5 9bz uk tel.: +44 (1793) 772 474 f: +44 (1793) 772 474 ax
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