• 8-channel HV switch interface with HV current sources
• Linear low-drop voltage regulator, up to 80mA current capability, VCC = 5.0V ±2%
• Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.3”
• Supply voltage up to 40V
• Operating voltage VS = 5V to 27V
• Internal voltage divider for VBattery sensing (±2%)
• 16-bit serial interface (daisy-chain-capable) for configuration and diagnosis
• Typically 8μA supply current during sleep mode
• Typically 35μA supply current in active low-power mode
• VCC-undervoltage detection (4ms reset time) and watchdog reset logical combined at NRES open drain output
• LIN high-speed mode up to 200kBit/s
• Adjustable watchdog timer via external resistor
• Negative trigger input for watchdog
• LIN physical layer complies with LIN 2.1 specification and SAE J2602-2
• Wake-up capability via LIN bus and CL15
• Bus pin is overtemperature and short-circuit protected versus GND and battery
• Advanced EMC and ESD performance
• Package: QFN32 5x5mm

The Microchip's ATA664151 is a system basis chip with an eight-channel high voltage switch interface, a LIN 2.1 and SAEJ2602-2-compliant LIN transceiver, low-drop voltage regulator, and an adjustable Window Watchdog. The Microchip ATA664151 provides 5V output voltage with up to 80mA current capability. This chip combination makes it possible to develop inexpensive, simple, yet powerful slave and master nodes for LIN bus systems. The Microchip ATA664151 is especially designed for LIN switch applications and includes almost the entire LIN node. They are designed to handle low data-rate communication in vehicles (such as in convenience electronics). Improved slope control at the LIN driver ensures secure data communication up to 20kBaud. Sleep Mode and Active Low-power Mode guarantee minimal current consumption even in the case of a floating bus line or a short circuit on the LIN bus to GND.