star coupler. TJA1086 Datasheet

TJA1086 coupler. Datasheet pdf. Equivalent

Part TJA1086
Description FlexRay active star coupler
Feature TJA1086 FlexRay active star coupler Rev. 1 — 18 April 2013 Product data sheet 1. General descriptio.
Manufacture NXP Semiconductors
Datasheet
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TJA1086
TJA1086
FlexRay active star coupler
Rev. 2 — 8 March 2016
Product data sheet
1. General description
The TJA1086 is a FlexRay active star coupler that connects two branches of a FlexRay
network. The TJA1086 is compliant with the FlexRay electrical physical layer specification
V3.0.1/ISO17458-4 (see Ref. 1 and Ref. 2).
Several TJA1085 and TJA1086 devices can be connected via their TRXD0/1 interfaces to
increase the number of branches in the network. A dedicated Communication Controller
(CC) interface allows for integration into an ECU. The TJA1086 supports low-power
management by offering bus wake-up capability along with battery supply and voltage
regulator control. The TJA1086 meets industry standards for EMC/ESD performance and
provides enhanced bus error detection, low current consumption and unmatched
asymmetric delay performance.
The TJA1086 also fulfills the JASPAR requirements as defined by the Japanese car
industry.
2. Features and benefits
2.1 General
Compliant with FlexRay Electrical Physical Layer specification V3.0.1/ISO17458-4
Fulfills JASPAR requirements
Automotive product qualification in accordance with AEC-Q100
Data transfer rates from 2.5 Mbit/s to 10 Mbit/s
Supports 60 ns minimum bit time at 400 mV differential voltage
Low-power management for battery-supplied ECUs
Very low current consumption in AS_Sleep mode
Leadless HVQFN44 package with improved Automated Optical Inspection (AOI)
capability
2.2 Functional
Supports autonomous active star operation independent of the host ensuring the
TJA1086 remains active even if the host fails or is switched off
Branches can be independently configured
Branch extension via TRXD0/1 inner star interface
16-bit bidirectional SPI interface up to 2 Mbit/s for host communication
Full host control over branch status
Enhanced wake-up capability:
Remote wake-up via wake-up pattern and dedicated FlexRay data frames



TJA1086
NXP Semiconductors
TJA1086
FlexRay active star coupler)
Local wake-up via pin LWU
Wake-up source recognition
configurable per branch
Enhanced supply voltage monitoring on VIO, VCC, VBUF and VBAT
Auto I/O level adaptation to host controller supply voltage VIO
Can be used in 14 V, 24 V and 48 V powered systems
Enhanced bus error detection - detects short-circuit conditions on the bus
Instant transmitter shut-down interface (BGE pin)
Selective branch shut-down (partial networking)
2.3 Robustness
Bus pins protected against 8 kV ESD pulses according to HBM and 6 kV ESD
pulses according to IEC61000-4-2
All pins protected against 1000 V ESD according to CDM
All pins protected against 200 V ESD according to MM
No reverse currents from the digital input pins to VIO or VCC when the TJA1086 is not
powered up
Bus pins short-circuit proof to battery voltage (14 V, 24 V or 48 V) and ground
Overtemperature detection and protection
Bus pins protected against transients in automotive environment (according to ISO
7637 class C)
2.4 Active star functional classes
Active star - communication controller interface
Active star - bus guardian interface
Active star - voltage regulator control
Active star - logic level adaptation
Active star - host interface
Active star - increased voltage amplitude transmitter
3. Ordering information
Table 1. Ordering information
Type number Package
Name
Description
Version
TJA1086HN
HVQFN44 plastic thermal enhanced very thin quad flat package; no leads; 44 terminals; SOT1113-1
body 9 9 0.85 mm
TJA1086
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 8 March 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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