System Basis Chip with Low Speed Fault Tolerant CAN

The 33389 is a monolithic integrated circuit combining many functions frequently used by automotive Engine Control Units (ECUs). It incorporates a low speed fault tolerant CAN transceiver.

Features

• Dual Low Drop Voltage Regulators, with Respectively 100 mA and 200 mA Current Capabilities, Current Limitation, and Over Temperature Detection with Pre-warning

• 5.0 V Output Voltage for V1 Regulator

• Three Operational Modes (Normal, Stand-by, and Sleep Modes) Separated from the CAN Interface Operating Modes

• Low Speed 125 kBaud Fault Tolerant CAN Interface, Compatible with 33388 Stand Alone Physical Interface

• V1 Regulator Monitoring and Reset Function

• Three External High Voltage Wake-Up Inputs, Associated with V3 VBAT Switch

• 100 mA Output Current Capability for V3 VBAT Switch Allowing Drive of External Switches or Relays

• Low Stand-by and Sleep Current Consumption

• VBAT Monitoring and VBAT Failure Detection Capabilities

• DC Operating Voltage up to 27 V

• 40 V Maximum Transient Voltage

• Programmable Software Window Watchdog and Reset

• Wake-Up Capabilities (CAN Interface, Local Programmable Cycle Wake

• INterface with the MCU through the SPI

• Pb-Free Packaging Designated by Suffix Codes VW and EG