NCV7321 Datasheet, PDF (1/12 Pages) ON Semiconductor – Stand Alone LIN Transceiver

NCV7321
Stand Alone LIN
Transceiver
Description
The NCV7321 is a fully featured local interconnect network (LIN)
transceiver designed to interface between a LIN protocol controller
and the physical bus. The transceiver is implemented in I3T
technology enabling both high−voltage analog circuitry and digital
functionality to co−exist on the same chip.
The NCV7321 LIN device is a member of the in−vehicle
networking (IVN) transceiver family. It is designed to work in harsh
automotive environment and is qualified following the TS16949 flow.
The LIN bus is designed to communicate low rate data from control
devices such as door locks, mirrors, car seats, and sunroofs at the
lowest possible cost. The bus is designed to eliminate as much wiring
as possible and is implemented using a single wire in each node. Each
node has a slave MCU−state machine that recognizes and translates
the instructions specific to that function. The main attraction of the
LIN bus is that all the functions are not time critical and usually relate
to passenger comfort.
http://onsemi.com
8
SOIC−8
CASE 751
1
PIN ASSIGNMENT
RxD 1
EN 2
WAKE 3
8 INH
7 V_BB
6 _LIN
Features
• General
♦ SOIC−8 Green package (Pb−Free)
• LIN−Bus Transceiver
TxD ₄
5 GNI
(Top View) PC20040918.3
♦ LIN Compliant to Specification Revision 2.0 and 2.1 (Backwards
Compatible to Version 1.3) and J2602
ORDERING INFORMATION
♦ Bus Voltage $45 V
♦ Transmission Rate 1 kbps to 20 kbps
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
• Protection
♦ Sleep Mode: LIN Transceiver Disabled, the
♦ Thermal Shutdown
Consumption from V_BB is Minimized, INH Switch
♦ Indefinite Short−Circuit Protection on Pins LIN and
is Off
WAKE Towards Supply and Ground
♦ Standby Mode: transition mode reached either after
♦ Load Dump Protection (45 V)
power−up or after a wakeup event, INH switch is on
♦ Bus Pins Protected Against Transients in an
♦ Wake−up Bringing the Component from Sleep
Automotive Environment
Mode into Standby Mode is Possible either by LIN
• EMI Compatibility
♦ Integrated Slope Control
• Modes
Command or a Digital Signal on WAKE Pin (e.g.
External Switch)
• These are Pb−Free Devices
♦ Normal Mode: LIN Transceiver Enabled,
Communication via the LIN Bus is Possible, INH
Switch is On
© Semiconductor Components Industries, LLC, 2010
1
June, 2010 − Rev. 8
Publication Order Number:
NCV7321/D