ATA6623_09 Datasheet, PDF (1/23 Pages) ATMEL Corporation – LIN Bus Transceiver with Integrated Voltage Regulator

Features
• Supply Voltage up to 40V
• Operating Voltage V_S = 5V to 27V
• Typically 10 µA Supply Current During Sleep Mode
• Typically 57 µA Supply Current in Silent Mode
• Linear Low-drop Voltage Regulator:
– Normal, Fail-safe, and Silent Mode
– ATA6623: V_CC = 3.3V ±2%
– ATA6625: 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
• ESD HBM 8 kV at Pins LIN and VS Following STM5.1
• Interference and Damage Protection According to ISO/CD7637
• Package: SO8
1. Description
ATA6623/ATA6625 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/50 mA). The
combination of voltage regulator and bus transceiver makes it possible to develop
simple, but powerful, slave nodes in LIN Bus systems. ATA6623/ATA6625 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 mini-
mized current consumption.
LIN Bus
Transceiver
with Integrated
Voltage
Regulator
ATA6623
ATA6625
4957G–AUTO–09/09