System basis chips provide energy efficiency and safety for in-vehicle networks
Freescale's latest generation of automotive certified CAN/LIN devices meet electromagnetic compatibility requirements.
FreescaleSemiconductor has released its next generation of system basis chips (SBCs) whichintegrate an energy management module to power microcontrollers (MCUs),transceiver interfaces to connect with in-vehicle networks, and low-power modesto conserve battery life.
MC33904/5S/5D SBCs are built on Freescale SmartMOS technology and are designed
to optimize the performance, power consumption, and cost of electronic control
units for a range of automotive applications. The devices are also suitable for
high-performance body applications such as body controlmodules, lighting
modules, door/seat modules, seatbelt pretensioners, fuel/water pumps, glow plugs,
and low-end engine management systems. They can also be used in applications
including safety and powertrain.
and electrostatic discharge (ESD) are a serious concern in harsh automotive
environments due to the close proximity of networked electronic systems and
devices. These CAN/LIN-certified devices offer programmable fail-safe features
to assist with system functional safety, while providing a high-level of ESD
protection and EMC performance to address stringent automotive requirements.
The SBCs are AEC-Q100 automotive qualified and are reported to be immune to EMC
and ESD stresses without the need for external components, simplifying the bill
management scalability features include:
- MCU power supply (Vdd):5-volt or 3.3/150mA (with split power option up to 300mA)
- 5V or 3.3V Vreg forauxiliary loads
- Dedicated 5V Vreg for CANhigh-speed
Functionalsafety features include:
- Cranking pulse managementduring low Vdd
- Fail-EMC safe andconfigurable state machine
- Enhanced protections anddiagnostics
Energysavings features include:
- Ultra-low-power modes(typical 15uA with Vdd off)
- Wake-up management andcyclic sense
Physicallayer features include:
- Certification to LIN 2.1 andISO 11898-2-5 standards
- Certification to EMC, ISO,ESD standards
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