MC33889DPEG

Analog, Mixed Signal and Power Management MC33889 System Basis Chip Lite with Low Speed Fault Tolerant CAN Interface Applications • • • • • • MC33689 Simplified Application Diagram Aircraft Systems Automotive Systems Robotic Systems Farm Equipment Industrial Controls Marine Applications 33889 VDD1 5.0 V Overview GND 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 a fully protected, fixed 5.0 V low drop-out regulator, with current limit, overtemperature pre-warning and reset. RST INT An output drive with sense input is also provided to implement a second 5.0 V regulator using an external PNP. The 33889 has Normal, Standby, Stop, and Sleep modes; an internally switched high side power supply output with two wake-up inputs; programmable timeout or window watchdog, Interrupt, Reset, serial peripheral interfce (SPI) input control, and a low-speed fault tolerant CAN transceiver, compatible with CAN 2.0 A and B protocols for module-to-module communications. The combination is an economical solution for power management, high-speed communication, and control in MCU-based systems. VPWR MCU CS SCLK MOSI MISO SPI VS CS SCLK MOSI MISO V2CTRL V2 HS1 L0 L1 WDOG RTH TXD RXD CANH CANL V2 Local Module Supply Wake-Up Inputs Safe Circuits Twisted Pair RTL Performance Typical Values Operating Voltage 5.5 V to 27 V Data Rate 125 kbps Internal 5.0 V Regulator 200 mA External 5.0 V Series Regulator User Defined Sleep/Stop Current 50/120 µA Ambient Operating Temperature -40 °C  TA  125 °C CAN Bus Analog Mixed signal and Power Management Features Ordering Information • 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 • Additional devices available for comparison in Analog Product Selector Guide - SG1002 and Automotive Product Selector Guide - SG187 Customer Benefits • Provides complete MCU power management solution with few components • CAN and SPI interface • Internal wake-up and watchdog function • Freescale offers a complete line of compatible system basis chips with transceivers • Simple system design with direct interfacing to a microprocessor • Reduced PC board space resulting in enhanced application reliability • Economical solution with an optimized performance/cost ratio • Simplified MCU power supply design with internal safety features and output voltage supervisory circuits 28 SOICW Device (add R2 suffix for tape and reel) Temperature Range Package -40 to 125 °C 28 SOICW MC33889BPEG MC33889DPEG Documentation Description MC33889 System Basis Chip with LIN Transceiver SG1002 Analog Product Selector Guide SG187 Automotive Product Selector Guide PROTECTION DETECT LIMITING VDD1: • Undervoltage • Overcurrent/Short-circuit • Overtemperature     VS2: • Undervoltage  HS1: • Overcurrent • Overtemperature   CAN Bus Failure: • H-Wire Disconnect • L-Wire Disconnect • H Short-to-Battery • L Short-to-Battery • H Short-to-Ground • L Short-to-Ground • H-to-L Short • H Short-to-VDD         Supply LIne • Overtemperature • Bus Short   SHUT DOWN AUTO RETRY STATUS REPORTING                               Questions • • • • • How many wake-up inputs do you need? • Do you need a watchdog with independent What voltage (5.0 V or 3.3 V) does your reset/interrupt capability? microcontroller need? • Are you looking for a complete, easy-toWhat type of CAN (high/low speed) do you design power supply solution for your need? embedded system? Do you need several power supplies? • Do you need an advanced microcontroller power supply with power sequencing and Do you need a fully protected low drop-out supervisory functions? series pass regulator? 98ASB42345B 28-PIN SOICW Learn More: F or current inform ation about Freescale products, please visit www.freescale.com. Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2006-2012. All rights reserved. Document Number: MC33889FS Rev 5.0