Rainbow Electronics ATA6670 - Manual

Features
• Operating Range from 5V to 27V
• Baud Rate up to 20Kbaud
• LIN Physical Layer According to LIN Specification 2.0, 2.1 and SAEJ2602-2
• Fully Compatible with 3.3V and 5V Devices
• TXD Dominant Timeout Timer
• Normal and Sleep Mode
• Wake-up Capability via LIN Bus (90µs Dominant)
• Very Low Standby Current During Sleep Mode (10µA)
• Bus Pin is Overtemperature and Short-circuit Protected Versus GND and Battery
• LIN Input Current < 2µA if VBAT Is Disconnected
• Overtemperature Protection
• High EMC Level
• Interference and Damage Protection According to ISO/CD 7637
• Fulfills the OEM Hardware Requirements for LIN in Automotive Applications Rev. 1.1
• Transceiver 2: Additional INH High Side Switch Output and High Voltage WAKE Input
1. Description
The Atmel ® ATA6670 is a fully integrated Dual-LIN transceiver complying with the LIN
specification 2.0, 2.1, and SAEJ2602-2. There are two completely independent and
separated LIN transceivers integrated in one package (only the GND pins GND1 and
GND2 are internally connected). Each of them interfaces with the LIN protocol handler
and the physical layer.
The two LIN transceivers are nearly identical, the only difference is an additional wake
input and an INH output at transceiver 2.
The device is designed to handle the low-speed data communication in vehicles, for
example, in convenience electronics. Improved slope control at the LIN bus ensures
secure data communication of up to 20Kbaud with an RC oscillator for protocol han-
dling. Sleep mode guarantees minimal current consumption for each transceiver even
in the case of a floating bus line or a short-circuit on the LIN bus to GND. The Atmel
ATA6670 features advanced EMI and ESD performance.
Dual LIN
Transceiver
Atmel ATA6670
Preliminary
9204C–AUTO–09/11