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TPIC1021

Texas Instruments
Part Number TPIC1021
Manufacturer Texas Instruments
Description LIN Physical Interface
Published Sep 21, 2019
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPIC1021 SLIS113D – OCTOBER 20...
Datasheet PDF File TPIC1021 PDF File

TPIC1021
TPIC1021


Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPIC1021 SLIS113D – OCTOBER 2004 – REVISED JUNE 2015 TPIC1021 LIN Physical Interface 1 Features •1 LIN Physical Layer Specification Revision 2.
0 compliant.
Conforms to SAEJ2602 Recommended Practice for LIN • LIN Bus Speed up to 20 kbps • ESD Protection to 12 kV (Human Body Model) on LIN Pin • LIN Pin Handles Voltage from –40 V to 40 V • Survives Transient Damage in Automotive Environment (ISO 7637) • Operation with Supply from 7-V to 27-V DC • Two Operation Modes: Normal and Low-Power (Sleep) Mode • Low Current Consumption in Low Power Mode • Wake-Up Available from LIN Bus, Wake-Up Input (External Switch) or Host MCU • Interfaces to MCU with 5-V or 3.
3-V I/O Pins • Dominant State Timeout Protection on TXD Pin • Wake-Up Request on RXD Pin • Control of External Voltage Regulator (INH Pin) • Integrated Pull-Up Resistor and Series Diode for LIN Slave Applications • Low EME (Electromagnetic Emissions), High EMI (Electromagnetic Immunity) • Bus Terminal Short-Circuit Protected for Short to Battery or Short to Ground • Thermally Protected • Ground Disconnection Fail-Safe at System Level • Ground Shift Operation at System Level • Unpowered Node Does Not Disturb the Network 2 Applications • Industrial Sensing • White Goods Distributed Control 3 Description The TPIC1021 is the LIN (Local Interconnect Network) physical interface, which integrates the serial transceiver with wake up and protection features.
The LIN bus is a single wire, bi-directional bus typically used for low-speed in-vehicle networks using baud rates between 2.
4 kbps and 20 kbps.
The LIN bus has two logical values: the dominant state (voltage near ground) represents a logic 0 and the recessive state (voltage near battery) and represents logic 1.
In the recessive state the LIN bus is pulled high by the TPIC1021’s internal pull-up resistor (30 kΩ) and series diode, so no external pullup components are required for slave...


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