ATA663431-GDQW

The ATA663431 is a new generation of system basis chips with a fully integrated LIN transceiver, a low-drop voltage regulator (3.3V/5V/85mA), a window watchdog, and a high-side switch. This combination makes it possible to develop simple, but powerful, slave nodes in LIN-bus systems. The ATA663431 is designed to handle low-speed data communication in vehicles (such as in convenience electronics). Improved slope control at the LIN driver ensures secure data communication up to 20Kbaud. The bus output is designed to withstand high voltage. Sleep mode and silent mode guarantee a minimized current consumption even in the case of a floating or short-circuited LIN bus.

• Supply voltage up to 40V
• Operating voltage VVS = 5V to 28V
• Supply current
  • Sleep mode: typically 10µA
  • Silent mode: typically 47µA
  • Very low current consumption at low supply voltages (2V < VVS < 5.5V): typically 150µA
• Linear low-drop voltage regulator, 85mA current capability:
  • MLC (multi-layer ceramic) capacitor with 0O ESR
  • Normal, fail-safe, and silent mode: VCC = 3.3V ±2%
• Sleep mode: VCC is switched off
• VCC under voltage detection with open drain reset output (NRES, 4ms reset time)
• Voltage regulator is short-circuit and over-temperature protected
• Adjustable watchdog time via external resistor
• Negative trigger input for watchdog
• Limp Home watchdog failure output
• LIN physical layer according to LIN 2.0, 2.1, 2.2, 2.2A and SAEJ2602-2
• Bus pin is over temperature and short-circuit protected versus GND and battery
• High-side s