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The TJA1085HN is a FlexRay active star coupler that connects up to 4 branches of a FlexRay network.The TJA1085 is compliant with the FlexRay Electrical Physical Layer Specification V3.0.1/ISO17458-4.

Multiple TJA1085 devices can be connected via its TRXD0/1 interface to increase the number of branches in the network. A dedicated Communication Controller (CC) interface allows integration into the ECU. the TJA1085 provides Wake-on-Bus functionality as well as battery power and voltage regulator control to support low-power management. the TJA1085 complies with industry standards targeting EMC/ESD performance, providing enhanced bus error detection, low power consumption, and unrivalled asymmetric delay performance.

The TJA1085 is also compliant with the JASPAR requirements set by the Japanese automotive industry.

Specification

Type: Transceiver  

Protocol: FlexRay  

Number of Drivers/Receivers: 4/4  

Operating Temperature: -40°C ~ 125°C  

Mounting Type: Surface Mount  

Package/Housing: 44-VQFN Exposed Pad  

Supplier Device Package: 44-HVQFN (9x9)

Features

Meets JASPAR requirements

AEC-Q100 compliant automotive electronics

2.5 Mbit/s to 10 Mbit/s data transfer rate

Supports a minimum bit time of 60 ns at a differential voltage of 400 mV

Low-power management suitable for battery-powered ECUs

Extremely low current consumption in AS_Sleep mode

Pinless HVQFN44 package with enhanced automatic optical inspection (AOI) capability

Supports host-independent autonomous active star operation, ensuring that the TJA1085 remains active even when the host fails or shuts down

Branches are independently configurable

Branch expansion via TRXD0/1 internal star interface

Up to 2 Mbit/s 16-bit bi-directional SPI interface for host communication

Full host control of branch status

Enhanced wake-up functionality:

Remote wake-up via wake-up mode and dedicated FlexRay data frame

Local wake-up via LWU pin

Wake-up source identification

Configurable per branch

Enhanced supply voltage monitoring on VIO, VCC, VBUF and VBAT

I/O levels automatically adapt to host controller supply voltage VIO

Available in 14 V, 24 V and 48 V supply systems

Enhanced bus error detection - detects bus shorts

Instant transmitter shutdown interface (BGE pin)

Selective branch shutdown (local networking)

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.