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Part Number: A8423
Description: The A8423 provides the physical interface requirements of the LIN (Local Interconnect Network) serial ...
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A8423
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General Description
A8423 General Description
The A8423 provides the physical interface requirements of the LIN (Local Interconnect Network) serial communications bus plus an integrated voltage regulator that is permanently enabled. These allow the development of simple, inexpensive slave nodes in a LIN-Bus system.
The LIN transceiver is compatible with LIN-Bus systems that conform to the LIN Protocol Specifi cation, Revision 1.2. It provides all the necessary interface and timing control to convert signals to and from the bidirectional LIN Bus to individual transmit and receive signals at logic-compatible levels.
The A8423 provides regulated 5V output with a current limit in excess of 50 mA. This is suffi cient to power a microcontroller handling the LIN slave node protocol.
The A8423 is supplied in 8-lead plastic SOIC (part number suffi x L).
A8423 Maximum Ratings
Supply Voltage, VSUP Continuous.....................30 V
Supply Voltage, VSUP Transient (500 ms).........40 V
LIN Bus Voltage, LIN........................... 18 to +40 V
Wake Pin ........................................... 18 to +40 V
Logic Pins: RX, TX, EN.......................... 0.3 V to 7 V
Package Power Dissipation, PD .....see chart, page 6
Operating Temperature Range
Ambient Temperature, TA..........40°C to +125°C
Junction Temperature, TJ ...........55°C to +150°C
Storage Temperature, TS ..........55°C to +150°C
Supply Voltage, VSUP Transient (500 ms).........40 V
LIN Bus Voltage, LIN........................... 18 to +40 V
Wake Pin ........................................... 18 to +40 V
Logic Pins: RX, TX, EN.......................... 0.3 V to 7 V
Package Power Dissipation, PD .....see chart, page 6
Operating Temperature Range
Ambient Temperature, TA..........40°C to +125°C
Junction Temperature, TJ ...........55°C to +150°C
Storage Temperature, TS ..........55°C to +150°C
A8423 Features
·Compatible with LIN Bus, Revision 1.2 systems
·Data rate up to 20 kbaud
·Normal operation from 7 to 30 V
·Handles 40 V transients during load dump
·Handles automotive transients per ISO 7637
·Unpowered node does not disturb the network
·4 kV (hbm) ESD protection on LIN and WAKE pins
·Low quiescent current regulator for slave microcontroller supply
·Interface to slave microcontroller
·8-pin small outline surface mount package
·Data rate up to 20 kbaud
·Normal operation from 7 to 30 V
·Handles 40 V transients during load dump
·Handles automotive transients per ISO 7637
·Unpowered node does not disturb the network
·4 kV (hbm) ESD protection on LIN and WAKE pins
·Low quiescent current regulator for slave microcontroller supply
·Interface to slave microcontroller
·8-pin small outline surface mount package
A8423 Typical Application
Automotive, industrial, and consumer LIN-Bus systems
A8423 Connection Diagram
A8423
PDF/DataSheet Download
- Datasheet: A8423
- File Size: 377204 KB
- Manufacturer: ALLEGRO [Allegro MicroSystems]
- Click here to Download
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