Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsInterface ICsInterface IC - transceivers LIN 1/1 SOIC 8

FEATURES

RXD

TXD

NWake

INH

LIN

GND

Receiver

Filter

TPIC1021A

SUP

Wake Up, State,

and INH Control

Fault

Detection

and Protection

Driver

With Slope

Control

Dominant

State

Timeout

SUP

Filter

TPIC1021A-Q1

www.ti.com

.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009

LIN PHYSICAL INTERFACE

• 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 (INH Pin)

• LIN Bus Speed up to 20-kbps LIN Specified

• Integrated Pullup Resistor and Series Diode

Maximum

for LIN Slave Applications

• Sleep Mode: Ultralow Current Consumption,

• Low Electromagnetic Emission (EME), High

Allows Wake-Up Events From LIN Bus,

Electromagnetic Immunity (EMI)

Wake-Up Input (External Switch), or Host MCU

• Bus Terminal Short Circuit Protected for

• High-Speed Receive Capable

Short to Battery or Short to Ground

• ESD Protection to ± 12 kV (Human-Body Model)

• Thermally Protected

on LIN Pin

• Ground Disconnection Fail Safe at System

• LIN Pin Handles Voltage From – 40 V to 40 V

Level

• Survives Transient Damage in Automotive

• Ground Shift Operation at System Level

Environment (ISO 7637)

• Unpowered Node Does Not Disturb the

• Extended Operation With Supply From 7 V to

Network

27 V DC (LIN Specification 7 V to 18 V)

• Supports ISO9141 (K-Line)-Like Functions

• Interfaces to MCU With 5-V or 3.3-V I/O Pins

FUNCTIONAL BLOCK DIAGRAM

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (22 pages)

PAGE 1
TPIC1021A-Q1 www.ti.com.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009 LIN PHYSICAL INTERFACE FEATURES 1 • • • • • • • • • LIN Physical Layer Specification Revision 2.
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com DESCRIPTION The TPIC1021A is the Local Interconnect Network (LIN) physical interface, which integrates the serial transceiver with wake-up and protection features. The LIN bus is a single-wire bidirectional bus typically used for low-speed in-vehicle networks using data rates between 2.
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TPIC1021A-Q1 www.ti.com.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009 Local Interconnect Network (LIN) Bus This I/O pin is the single-wire LIN bus transmitter and receiver. Transmitter Characteristics The driver is a low-side transistor with internal current limitation and thermal shutdown.
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com Ground (GND) GND is the TPIC1021A device ground connection. The TPIC1021A can operate with a ground shift as long as the ground shift does not reduce VSUP below the minimum operating voltage.
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TPIC1021A-Q1 www.ti.com..........................................................................................................................................................
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com While the device is in sleep mode, the following conditions exist: • The LIN bus driver is disabled and the internal LIN bus termination is switched off (to minimize power loss if LIN is short circuited to ground).
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TPIC1021A-Q1 www.ti.com.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009 LIN 0.6 × VSUP 0.4 × VSUP 0.6 × VSUP Vsup 0.4 × VSUP t < tLINBUS tLINBUS Vsup INH High Impedance TXD t > tgo_to_operate EN RXD MODE Floating Sleep Standby Normal Figure 3.
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com NWake VIL NWake VIH NWake VIL NWake Vsup t < tNWake INH tNWake Vsup High Impedance TXD t > tgo_to_operate EN RXD Floating Vsup LIN MODE Sleep Standby Normal Figure 4.
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TPIC1021A-Q1 www.ti.com..........................................................................................................................................................
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS VSUP = 7 V to 27 V, TA = –40°C to 125°C (unless otherwise noted) MIN TYP (1) MAX Device is operational beyond the LIN 2.
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TPIC1021A-Q1 www.ti.com..........................................................................................................................................................
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) VSUP = 7 V to 27 V, TA = –40°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT AC CHARACTERISTICS Duty cycle 1 (4) THREC(max) = 0.744 × VSUP, THDOM(max) = 0.
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TPIC1021A-Q1 www.ti.com.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009 TIMING DIAGRAMS tBit tBit RECESSIVE D = 0.
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com TIMING DIAGRAMS (continued) LIN Bus 0.6 VSUP VSUP 0.4 VSUP trx_pdf trx_pdr RXD 50% 50% Figure 6. Propagation Delay VCC TPIC1021A RRXD RXD INH CRXD VSUP 100 nF EN RLIN NWake LIN CLIN TXD GND Figure 7.
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TPIC1021A-Q1 www.ti.com..........................................................................................................................................................
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TPIC1021A-Q1 SLIS117A – AUGUST 2007 – REVISED JUNE 2009.......................................................................................................................................................... www.ti.com Device Comparison: TPIC1021 vs TPIC1021A The TPIC1021A is pin-to-pin compatible to the TPIC1021 device. The TPIC1021A is an enhanced LIN transceiver, including enhanced immunity to RF disturbances. Table 2 is a summary of the differences between the two devices. Table 2.
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PACKAGE OPTION ADDENDUM www.ti.com 24-Jan-2013 PACKAGING INFORMATION Orderable Device Status (1) TPIC1021AQDRQ1 ACTIVE Package Type Package Pins Package Qty Drawing SOIC D 8 2500 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) CU NIPDAU Level-1-260C-UNLIM (4) -40 to 125 T1021A (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Mar-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPIC1021AQDRQ1 Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPIC1021AQDRQ1 SOIC D 8 2500 367.0 367.0 35.
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