ATA6629 Datasheet, PDF (1/26 Pages) ATMEL Corporation – Typically 10 μA Supply Current During Sleep Mode

Features
• Supply Voltage up to 40V
• Operating Voltage V_S = 5V to 27V
• Typically 10 µA Supply Current During Sleep Mode
• Typically 40 µA Supply Current in Silent Mode
• Linear Low-drop Voltage Regulator:
– Normal, Fail-safe, and Silent Mode
– ATA6629: V_CC = 3.3V ±2%
– ATA6631: V_CC = 5.0V ±2%
– Sleep Mode: V_CC is Switched Off
• V_CC Undervoltage Detection with Reset Open Drain Output NRES (4 ms Reset Time)
• 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 (90 µs 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 Rev.1.1”
• Interference and Damage Protection According to ISO7637
• Package: SO8
1. Description
ATA6629/ATA6631 is a fully integrated LIN transceiver, designed according to the LIN
specification 2.0, 2.1 and SAEJ2602-2, with a low-drop voltage regulator
(3.3V/5V/50 mA). The combination of voltage regulator and bus transceiver makes it
possible to develop simple, but powerful, slave nodes in LIN Bus systems.
ATA6629/ATA6631 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 20 kBaud 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_CC
voltage on) guarantee minimized current consumption.
LIN Bus
Transceiver
with Integrated
Voltage
Regulator
ATA6629
ATA6631
9165B–AUTO–05/10