NXP MC33742PEPR2

The 33742 and the 33742S SMARTMOS devices are SPI-controlled System Basis Chips (SBCs), combining many frequently used functions, along with a CAN 2.0-compliant transceiver, used in many automotive electronic control units (ECUs). The 33742 SBC has a fully protected fixed 5.0 V low dropout internal regulator, with current limiting, overtemperature prewarning, and reset. A second 5.0 V regulator can be implemented using external pass PNP bipolar junction pass transistor, driven by the SBC’s external V2 sense input and V2 output drive pins. The SBC has four main operating modes: Normal, Standby, Stop, and Sleep mode. Additionally, there is an internally switched high side power supply output, four wake-up inputs pins, a programmable window watchdog, interrupt, reset, and a SPI module for communication and control. The high speed CAN A and B transceiver is available for intermodule communication.

• 1.0 Mbps CAN transceiver bus interface with bus diagnostic capability
• SPI control at frequencies up to 4.0 MHz
• 5.0 V low dropout voltage regulator with current limiting, overtemperature prewarning, and output monitoring and reset
• A second 5.0 V regulator capability using an external series pass transistor
• Normal, Standby, Stop, and Sleep modes of operation with low Sleep and Stop mode current
• A high side switch output driver for controlling external circuitry