TH8055

Single Wire CAN Transceiver

390108055

Page 1 of 15

Rev. 1.1a

Jan 2002

Features and Benefits

Fully compatible with J2411 Single Wire CAN specification for Class B in vehicle

communications

30 µA typical power consumption in sleep mode independent from CAN voltage range

Operating voltage range 5…18V

Up to 100 kbps high-speed transmission mode

Up to 40 kbps bus speed

Selective BUS wakeup

Low RFI due to output wave shaping

Fully integrated receiver filter

Bus terminals proof against short-circuits and transients in automotive environment

Loss of ground protection

Protection against load dump, jump start

Thermal overload and short circuit protection

ESD protection of 4 kV on CAN pin (2kV on any other pin)

Under- and over voltage lock out

Bus dominant timeout feature

Ordering Information

Part No.

Temperature Suffix

Package

TH8055

J (-40 ….125 °C)

DC (SOIC 150mil)

General Description

The TH8055 is a physical layer device for a single wire

data link capable of operating with various CSMA/CR

protocols such as the Bosch Controller Area Network

(CAN) version 2.0.

This serial data link network is

intended for use in applications where high data rate is

not required and a lower data rate can achieve cost

reductions in both the physical media components and

in the microprocessor and/or dedicated logic devices

which use the network.

The network shall be able to operate in either the

normal data rate mode or a high speed data download

mode for assembly line and service data transfer

operations. The high speed mode is only intended to be

operational when the bus is attached to an off-board service

node. This node shall provide temporary bus electrical loads

which facilitate higher speed operation.

Such temporary

loads shall be removed when not performing download

operations.

The bit rate for normal communications is typically 33 kbit/s,

for high speed transmissions like described above a typical

bit rate of 83 kbit/s is recommended. The TH8055 is

designed in accordance to the Single Wire CAN Physical

Layer Specification GMW3089 V1.4 and supports many

additional features like undervoltage lockout , timeout for

faulty blocked input signals, output blanking time in case of

bus ringing and a very low sleep mode current.