Texas Instruments TPIC1021A-Q1 Data Handbook/Manual
Summary
This TI TPIC1021A-Q1 is a robust LIN physical layer interface designed for automotive applications. It integrates a transceiver, wake-up circuitry, and protection features to support LIN bus speeds up to 20 kbps. The device ensures reliable communication in harsh environments with high ESD immunity and fault protection, making it ideal for master and slave nodes using 5V or 3.3V I/O.
Page 1 Text Content
TPIC1021A-Q1
LIN PHYSICAL INTERFACE
www.ti.com
SLIS117–AUGUST
FEATURES
LIN Physical Layer Specification Revision 2.0 Dominant State Timeout Protection
Compliant and Conforms to SAEJ2602
Wake-Up Request on RXD Pin
Recommended Practice for LIN
Control of External Voltage Regulator
LIN Bus Speed up to 20-kbps LIN Specified
(INH Pin)
Maximum
Integrated Pullup Resistor and Series Diode
Sleep Mode: Ultralow Current Consumption,
for LIN Slave Applications
Allows Wake-Up Events From LIN Bus,
Low Electromagnetic Emission (EME), High
Wake-Up Input (External Switch), or Host MCU
Electromagnetic Immunity (EMI)
High-Speed Receive Capable
Bus Terminal Short Circuit Protected for
ESD Protection to ±12 k V (Human-Body
Short to Battery or Short to Ground
Model) on LIN Pin
Thermally Protected
LIN Pin Handles Voltage From –40 to
Ground Disconnection Fail Safe at System
Survives Transient Damage in Automotive
Level
Environment (ISO 7637)
Ground Shift Operation at System Level
Extended Operation With Supply From to
Unpowered Node Does Not Disturb the
DC (LIN Specification to V)
Network
Interfaces to MCU With 5-V or 3.3-V I/O Pins
Supports ISO9141 (K-Line)-Like Functions
FUNCTIONAL BLOCK DIAGRAM
TPIC1021A
VSUP/2
Receiver
Filter
Wake Up, State, and INH Control
NWake Filter
Fault Detection
and Protection
Driver GND
Dominant
TXD With Slope
State
Control
Timeout
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright 2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Page Summary Contents For Texas Instruments TPIC1021A-Q1 Data Handbook/Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 18 |
| File Size | 278.21 KB |
| Published | June 15, 2026 |
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Frequently Asked Questions
What is the maximum LIN bus speed supported?
The LIN bus speed is up to 20 kbps, as specified.
How does wake-up from sleep mode work?
Wake-up can be triggered remotely via the LIN bus or locally via the NWake or EN pins.
Do slave applications require an external pullup resistor?
No, slave applications use the internal 30 kΩ pullup resistor and series diode; no external components are needed.
What is the supply voltage operating range?
It operates with a supply from 7 V to 27 V DC, extending beyond the LIN specification of 7 V to 18 V.
What fault protections are integrated?
The device has undervoltage, overtemperature, loss-of-ground, short-circuit, and ESD protection to ±12 kV.