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TH8055
Single Wire CAN Transceiver acc. to GMW3089 V1.26
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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 V1.26 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.
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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)
- Undervoltage lock out
- Bus dominant timeout feature
Product Applications
Single Wire CAN (GMW 3089)
Assets
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