Physical Interface. TPIC1021 Datasheet

TPIC1021 Interface. Datasheet pdf. Equivalent

Part TPIC1021
Description LIN Physical Interface
Feature Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPIC1021 S.
Manufacture etcTI
Total Page 24 Pages
Datasheet
Download TPIC1021 Datasheet



TPIC1021
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 k) and
series diode, so no external pullup components are
required for slave applications. Master applications
require an external pullup resistor (1 k) plus a series
diode.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPIC1021
SOIC (8)
4.90 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Functional Block Diagram
1
RXD
2
EN
3
NWake
Filter
4
TXD
Dominant
State
Timeout
Receiver
VSUP/2
Wake−Up
and
Vreg Control
Filter
Fault
Detection and
Protection
Driver
with Slope
Control
8
INH
7
VSUP
6
LIN
5
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



TPIC1021
TPIC1021
SLIS113D – OCTOBER 2004 – REVISED JUNE 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics........................................... 5
7.6 Timing Requirements ................................................ 6
7.7 Typical Characteristics .............................................. 7
8 Detailed Description .............................................. 8
8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 8
8.3 Feature Description................................................... 8
8.4 Device Functional Modes........................................ 10
9 Application and Implementation ........................ 13
9.1 Application Information............................................ 13
9.2 Typical Application .................................................. 13
10 Power Supply Recommendations ..................... 14
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 15
12 Device and Documentation Support ................. 16
12.1 Community Resources.......................................... 16
12.2 Trademarks ........................................................... 16
12.3 Electrostatic Discharge Caution ............................ 16
12.4 Glossary ................................................................ 16
13 Mechanical, Packaging, and Orderable
Information ........................................................... 16
4 Revision History
Changes from Revision C (July 2005) to Revision D
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
2 Submit Documentation Feedback
Product Folder Links: TPIC1021
Copyright © 2004–2015, Texas Instruments Incorporated





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