TPIC1021 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Pin-for-pin with same functionality to the compared device.
TLIN1021-Q1 ACTIVE Automotive local interconnect network (LIN) transceiver with WAKE and INH This product provides a wider operating voltage range and higher bus fault protection.
Top

Product details

Parameters

We are not able to display this information. Please refer to the product data sheet.

Features

  • 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
open-in-new Find other CAN & LIN transceivers & SBCs

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 applications. Master applications require an external pullup resistor (1 Ω) plus a series diode.

The LIN Protocol output data stream on the TXD pin is converted by the TPIC1021 into the LIN bus signal through a current limited, wave-shaping low-side driver with control as outlined by the LIN Physical Layer Specification Revision 2.0. The receiver converts the data stream from the LIN bus and outputs the data stream via the RXD pin.

In Low Power mode, the TPIC1021 requires very low quiescent current even though the wake-up circuits remain active allowing for remote wake up via the LIN bus or local wake ups via NWake or EN pins.

The TPIC1021 has been designed for operation in the harsh automotive environment. The device can handle LIN bus voltage swing from 40 V down to ground and survive –40 V. The device also prevents back feed current through the LIN pin to the supply input in case of a ground shift or supply voltage disconnection. It also features under-voltage, over temperature, and loss of ground protection. In the event of a fault condition the output is immediately switched off and remains off until the fault condition is removed.

open-in-new Find other CAN & LIN transceivers & SBCs
Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet TPIC1021 LIN Physical Interface datasheet (Rev. D) Jun. 06, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
Multiple Channels of High Density LED Control for Automotive Headlight Applications
TIDM-AUTO-DC-LED-LIGHTING This design, featuring the TMS320F2803x Piccolo microcontroller, implements a high efficiency multi-channel DC-DC LED control system for typically automotive lighting systems. The design support up to 6 channels of LED controls each with maximum of 1.2A current driving capabilities. With a  two (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos