ATA6623C-GAQW Microchip

ATA6623C/ATA6625C LIN Bus Transceiver with Integrated Voltage Regulator DATASHEET Features Supply voltage up to 40V Operating voltage V = 5V to 27V S Typically 10A supply current during sleep mode Typically 57A Supply current in silent mode Linear low-drop voltage regulator, 85mA current capability: Normal, fail-safe, and silent mode Atmel ATA6623C: V = 3.3V 2% CC Atmel ATA6625C: V = 5.0V 2% CC Sleep mode: V is switched off CC V undervoltage detection with reset open drain output NRES (4ms reset time) CC Voltage regulator is short-circuit and over-temperature protected LIN physical layer according to LIN 2.0, 2.1 and SAEJ2602-2 Wake-up capability via LIN bus (90s dominant) TXD time-out timer Bus pin is overtemperature and short-circuit protected versus GND and battery Advanced EMC and ESD performance Fulfills the OEM Hardware Requirements for LIN in Automotive Applications Rev1.0 Interference and damage protection according to ISO7637 Package: SO8 4957L-AUTO-09/141. Description The Atmel ATA6623C/ATA6625C is a fully integrated LIN transceiver, designed according to the LIN specification 2.0 and 2.1, with a low-drop voltage regulator (3.3V/5V/85mA). The combination of voltage regulator and bus transceiver makes it possible to develop simple, but powerful, slave nodes in LIN Bus systems. The Atmel ATA6623C/ATA6625C is designed to handle the low-speed data communication in vehicles (for example, in convenience electronics). Improved slope control at the LIN driver ensures secure data communication up to 20kBaud with an RC oscillator for the protocol handling. The bus output is designed to withstand high voltage. Sleep mode (voltage regulator switched off) and silent mode (communication off V voltage on) guarantee minimized current consumption. CC Figure 1-1. Block Diagram ATA6623C/ATA6625C 1 VS V CC Normal RXD Receiver 5 Mode - + 4 LIN RF-filter V CC Wake-up bus timer Short circuit and overtemperature protection Slew rate control TXD 6 TXD Time-out timer 8 VCC Sleep Normal/Silent/ EN 7 2 NRES mode Fail-safe Mode Control VCC unit 3.3V/5V switched GND 3 off Undervoltage reset 2 ATA6623C/ATA6625C DATASHEET 4957LAUTO09/14