NCV7321D12R2G.PDF

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. 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.

Features

• LIN−Bus Transceiver

♦ LIN Compliant to Specification Revision 2.x (Backwards

Compatible to Version 1.3) and J2602

♦ Bus Voltage 45 V

♦ Transmission Rate 1 kbps to 20 kbps

♦ Supports K−Line Bus Architecture

• Protection

♦ Thermal Shutdown

♦ Indefinite Short−Circuit Protection on Pins LIN and WAKE

Towards Supply and Ground

♦ Load Dump Protection (45 V)

♦ Bus Pins Protected Against Transients in an Automotive

Environment

• EMI Compatibility

♦ Integrated Slope Control

• Modes

♦ Normal Mode: LIN Transceiver Enabled, Communication via the

LIN Bus is Possible, INH Switch is On

♦ Sleep Mode: LIN Transceiver Disabled, the Consumption from

VBB is Minimized, INH Switch is Off

♦ Standby Mode: Transition Mode reached either after Power−up or

after a Wake−up Event, INH Switch is on

♦ Wake−up Bringing the Component from Sleep Mode into Standby

Mode is Possible either by LIN Command or a Digital Signal on

WAKE Pin (e.g. External Switch)

Quality

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Require− ments; AEC−Q100

Qualified and PPAP Capable

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant