tja1081 NXP Semiconductors, tja1081 Datasheet

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tja1081

Manufacturer Part Number
tja1081
Description
Flexray Node Transceiver
Manufacturer
NXP Semiconductors
Datasheet

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1. General description
2. Features
2.1 Optimized for time triggered communication systems
2.2 Low power management
The TJA1081 is a FlexRay node transceiver that is fully compliant with the FlexRay
electrical physical layer specification V2.1 Rev. A (see
versions V2.1 Rev. B. In addition, the TJA1081 already incorporates features and
parameters anticipated to be included in V3.0, currently being finalized. It is primarily
intended for communication systems from 1 Mbit/s to 10 Mbit/s, and provides an
advanced interface between the protocol controller and the physical bus in a FlexRay
network.
The TJA1081 features enhanced low-power modes, optimized for ECUs that are
permanently connected to the battery.
The TJA1081 provides differential transmit capability to the network and differential
receive capability to the FlexRay controller. It offers excellent EMC performance as well as
high ESD protection.
The TJA1081 actively monitors system performance using dedicated error and status
information (that can be read by any microcontroller), along with internal voltage and
temperature monitoring.
The TJA1081 supports mode control as used in the TJA1080A (see
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TJA1081
FlexRay node transceiver
Rev. 01 — 15 April 2009
Compliant with FlexRay electrical physical layer specification V2.1 Rev. A (see
Automotive product qualification in accordance with AEC-Q100
Data transfer up to 10 Mbit/s
Support of 60 ns minimum bit time
Very low ElectroMagnetic Emission (EME) to support unshielded cable
Differential receiver with wide common-mode range for high ElectroMagnetic Immunity
(EMI)
Auto I/O level adaptation to host controller supply voltage V
Can be used in 14 V and 42 V powered systems
Bus guardian interface
Independent power supply ramp-up for V
Low power management including inhibit switch
Very low current in Sleep and Standby modes
BAT
, V
CC
and V
Ref.
1) and partly complies with
IO
IO
Preliminary data sheet
Ref.
2).
Ref.
1)

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tja1081 Summary of contents

Page 1

... FlexRay node transceiver Rev. 01 — 15 April 2009 1. General description The TJA1081 is a FlexRay node transceiver that is fully compliant with the FlexRay electrical physical layer specification V2.1 Rev. A (see versions V2.1 Rev addition, the TJA1081 already incorporates features and parameters anticipated to be included in V3.0, currently being finalized primarily ...

Page 2

... SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm TJA1081_1 Preliminary data sheet power-on flag (first battery connection and cold start) BAT Ref. 1) Rev. 01 — 15 April 2009 FlexRay node transceiver , V and BAT TJA1081 Version SOT338-1 © NXP B.V. 2009. All rights reserved ...

Page 3

... TJA1081 SIGNAL ROUTER INPUT VOLTAGE ADAPTATION RXDINT OUTPUT VOLTAGE STATE ADAPTATION MACHINE WAKE-UP DETECTION OSCILLATOR UNDERVOLTAGE DETECTION 13 GND Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver V BAT 11 1 INH 15 BP TRANS- 14 MITTER BM BUS FAILURE DETECTION NORMAL RXDINT RECEIVER OVER- TEMPERATURE DETECTION ...

Page 4

... I/O bus line minus 15 I/O bus line plus 16 P supply voltage (+5 V) Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver GND TJA1081 12 WAKE 11 V BAT 10 ERRN 9 RXEN 015aaa067 voltage level adaptation IO © NXP B.V. 2009. All rights reserved ...

Page 5

... NXP Semiconductors 6. Functional description The block diagram of the transceiver is shown in 6.1 Operating modes The TJA1081 supports the following operating modes: • Normal (normal-power mode) • Receive-only (normal-power mode) • Standby (low-power mode) • Go-to-sleep (low-power mode) • Sleep (low-power mode) 6.1.1 Bus activity and idle detection The following mechanisms for activity and idle detection are valid in normal-power modes: • ...

Page 6

... Preliminary data sheet receive normal 0.7V STBN t det(EN) t d(STBN-stb) t d(STBN-RXD) 0. ERRN Timing diagram of control pins EN and STBN Figure 5. Rev. 01 — 15 April 2009 FlexRay node transceiver receive only standby only normal IO 0. det(EN) 0.3V IO 015aaa068 TJA1081 001aae439 © NXP B.V. 2009. All rights reserved ...

Page 7

... EN = LOW 9, 18 36, 37 13, 34, 35 26, 44 SLEEP STBN = LOW Table 4 to Table 7. Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver NORMAL STBN = HIGH EN = HIGH 10 14, 24, 40, 41 GO-TO-SLEEP STBN = LOW HIGH 27, 45 © NXP B.V. 2009. All rights reserved. 28, 29 ...

Page 8

Table 4. State transitions forced by EN and STBN indicates the action that initiates a transaction; 1 Transition Direction to Transition Pin from mode mode number STBN Normal Receive-only 1 H Go-to-sleep 2 L Standby 3 L Receive-only Normal 4 ...

Page 9

Table 5. State transitions forced by a wake-up indicates the action that initiates a transaction; 1 Transition Direction to Transition Pin from mode mode number STBN Standby Normal 16 H Receive-only 17 H Go-to-sleep 18 L Standby 19 L Go-to-sleep ...

Page 10

Table 6. State transitions forced by an undervoltage condition indicates the action that initiates a transaction; 1 Transition from Direction to Transition mode mode number Normal Sleep 28 Sleep 29 Standby 30 Receive-only Sleep 31 Sleep 32 Standby 33 Go-to-sleep ...

Page 11

Table 7. State transitions forced by an undervoltage recovery indicates the action that initiates a transaction; Transition Direction to Transition Pin from mode mode number STBN Standby Normal 38 H Receive-only 39 H Sleep Normal 40 H Normal 41 H ...

Page 12

... V ) and the wake flag has been h(gotosleep) flag or the UV flag is set (see VIO VBAT or V while V is present, the wake flag is set BAT IO and ( are present BAT TJA1081 Table 8. CC Table 6). © NXP B.V. 2009. All rights reserved ...

Page 13

... The reception of a dedicated data frame, emulating a valid wake-up pattern, as shown in Figure 7, sets the wake-up flag of the TJA1081. Due to the Byte Start Sequence (BSS), preceding each byte, the DATA_0 and DATA_1 phases for the wake-up symbol are interrupted every 1 s. For 10 Mbit/s the maximum interruption time is 130 ns ...

Page 14

... Each interruption is 130 ns. The transition time from Data_0 to Data_1 and from Data_1 to Data_0 is about 20 ns. The TJA1081 wake-up flag will be set with the following pattern: FFh, FFh, FFh, FFh, FFh, 00h, 00h, 00h, 00h, 00h, FFh, FFh, FFh, FFh, FFh, 00h, 00h, 00h, 00h, 00h, ...

Page 15

... CC IO BAT , depending on which voltage BAT ) breaks down, a reset signal will be given BAT (even if the UV flag is reset) pins EN, uvd(VIO) VIO 6.3.2), the local wake-up source flag is set. TJA1081 remains BAT © NXP B.V. 2009. All rights reserved ...

Page 16

... No action will be taken if this BAT is within its operating range. BAT j(dis)(high) . The TXEN_BGE clamped flag is reset if pin TXEN is HIGH or pin Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver is present IO j(warn)(medium normal-power j(warn)(medium) j(dis)(high normal-power mode with pin V © ...

Page 17

... Table 9. Figure 9. is between 4.75 V and 5. between 2.2 V and 4. flag has been set previously VBAT flag has been set previously VCC TJA1081 . The UV flag VBAT for longer than for longer uvd(VCC) for longer than or the wake uvd(VIO) , det(EN) © NXP B.V. 2009. All rights reserved. ...

Page 18

... UV flag has been set previously VIO not used; always reset not used; always reset normal 0. d(EN-ERRN) 0. 0.3V IO Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver receive only 0. det(EN 001aag896 © NXP B.V. 2009. All rights reserved ...

Page 19

... C = 100 pF. bus bus Figure 13 100 pF. bus bus = 100 pF. bus = 100 pF bus bus BAT + where fixed value to be used for the amb th(j-a) th(j-a) TJA1081 Max Unit + +5.5 V 5.25 V +5 0.3 V BAT - 0.3 V BAT ...

Page 20

... TXEN TXEN - - ; TXEN 2. TXD TJA1081 Unit K +150 C; Max Unit 4 4.5 V +10 A 1000 2.2 V 200 mV 5 5 © ...

Page 21

... IO 0 300 [ 0 0.4 V; 1500 IO 300 700 0 0.4V 0. TXEN IO 0.1 0 TJA1081 = +150 C; Max Unit 5 5 0.3 0. 650 ...

Page 22

... 0.4V 0.5V CC 0. TJA1081 = +150 C; Max Unit 0. +0.1 V +7.5 mA +7.5 mA +25 mV 1500 mV 800 600 mV 300 mV 225 150 mV 225 125 300 ...

Page 23

... Min Typ [ 100 mV BAT 0 155 165 180 190 3.0 - 3.1 - 100 - TJA1081 = +150 C; Max Unit BAT BAT 0 4 175 C 200 C 3.4 V 3.5 V 200 mV © NXP B.V. 2009. All rights reserved ...

Page 24

... + 100 - 1 - 100 - - - 400 mV 100 - 0 mV 100 - - - TJA1081 = +150 C; Max Unit 100 115 s 670 ms 5 ...

Page 25

... Rev. 01 — 15 April 2009 FlexRay node transceiver = 2 5. Min Typ - - [ BAT 2600 - TJA1081 = +150 C; Max Unit 100 s 175 s 10400 s © NXP B.V. 2009. All rights reserved ...

Page 26

IO TXD 0.3V IO 0.7V IO TXEN 0.3V IO 0.7V IO BGE 0.3V IO +300 mV BP and 300 mV 0.7V IO RXEN 0.3V IO 0.7V IO RXD 0. ...

Page 27

... RXD V dif (mV) 22.5 ns 400 300 300 400 t d(bus-RXD) RXD V is the receiver test signal. dif Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver 22 d(bus-RXD) 22 d(bus-RXD) 015aaa044 © NXP B.V. 2009. All rights reserved ...

Page 28

... Rev. 01 — 15 April 2009 FlexRay node transceiver + BAT bus C bus RXD 15 pF 015aaa070 ISO 7637 ISO 7637 R bus C bus 015aaa071 TJA1081 G © NXP B.V. 2009. All rights reserved ...

Page 29

... JEDEC JEITA MO-150 Rev. 01 — 15 April 2009 FlexRay node transceiver detail 1.03 0.9 1.25 0.2 0.13 0.63 0.7 EUROPEAN PROJECTION TJA1081 SOT338 ( 1.00 8 0.1 o 0.55 0 ISSUE DATE 99-12-27 03-02-19 © NXP B.V. 2009. All rights reserved ...

Page 30

... Solder bath specifications, including temperature and impurities TJA1081_1 Preliminary data sheet Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver © NXP B.V. 2009. All rights reserved ...

Page 31

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 15. Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver Figure 15) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 245 245 245 © ...

Page 32

... Electronic Control Unit ElectroMagnetic Compatibility ElectroMagnetic Emission ElectroMagnetic Immunity ElectroStatic Discharge Frame End Sequence Human Body Model Machine Model Power-on Transmission Start Sequence Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver peak temperature time 001aac844 © NXP B.V. 2009. All rights reserved ...

Page 33

... NXP Semiconductors 16. Revision history Table 17. Revision history Document ID Release date TJA1081_1 20090415 TJA1081_1 Preliminary data sheet Data sheet status Change notice Preliminary data sheet - Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver Supersedes - © NXP B.V. 2009. All rights reserved ...

Page 34

... The FlexRay consortium can be contacted at request@flexray.com. 17.5 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver © NXP B.V. 2009. All rights reserved ...

Page 35

... NXP Semiconductors 18. Contact information For more information, please visit: For sales office addresses, please send an email to: TJA1081_1 Preliminary data sheet http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 15 April 2009 TJA1081 FlexRay node transceiver © NXP B.V. 2009. All rights reserved ...

Page 36

... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com TJA1081 All rights reserved. Date of release: 15 April 2009 Document identifier: TJA1081_1 ...

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