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System Basis Chip with Low Speed Fault Tolerant CAN Interface

An SBC device is a monolithic IC combining many functions repeatedly found in standard microcontroller-based systems, e.g., protection, diagnostics, communication, power, etc. The 33889 is an SBC having fully protected, fixed 5.0 V low drop-out regulator, with current limit, over-temperature pre-warning and reset.

Features

? VDD1: 5.0 V low drop voltage regulator, current limitation, overtemperature detection, monitoring and reset function with total current capability 200 mA

? V2: tracking function of VDD1 regulator; control circuitry for external bipolar ballast transistor for high flexibility in choice of peripheral voltage and current supply

? Four operational modes

? Low standby current consumption in Stop and Sleep modes

? Built-in low speed 125 kbps fault tolerant CAN physical interface.

? External high voltage wake-up input, associated with HS1 VBAT switch

? 150 mA output current capability for HS1 VBAT switch allowing drive of external switches pull-up resistors or relays

? Pb-Free Packaging Designated by Suffix Code EG