Texas Instruments (USA) announced 12 Hercules TMS570 ARM Cortex-R4 safety micro-controllers, complementary TPS65381-Q1 multi-rail safety power management integrated circuit (PMIC) and DRV3201-Q1 safety motor driver. The chipset for automotive and transportation motor control applications helps customers to achieve ISO 26262 and IEC 61508 certification.
THE INTRODUCED HERCULES TMS570LS12x/11x floating-point units provide additional memory (256 KiB, 384 KiB, 1 MiB and 1,25 MiB Flash) and performance configurations (from 80 MHz to 180 MHz lockstep ARM Cortex-R4 cores) with expanded motor control capabilities. The Hercules TMS570LS04x/03x provide a smaller package, lower cost, entry-line solution with integrated motor control interfaces. On-chip CAN, Flexray, Ethernet and LIN connectivity enables standard automotive networks and provides options for data collection. Hardware safety features include online diagnostics, memory protection for the CPU and bus masters, error correction code for Flash and RAM with single-bit error correction and double-bit error detection, CPU and RAM built-in-self-test for detection of potential latent faults. An error signaling module for action based on safety error, parity on peripheral RAMs, redundant analog-to-digital converters and timers and continuous voltage and clock monitoring are available as well. Integrated motor control capability includes enhanced pulse width modulation. Sensor capture and quadrature encoder interfaces on chip eliminate multiple external components for motor control. The 32-channel timer coprocessor serves as a redundant motor control channel and checks the integrity of the pulse-width modulators (PWMs) in the motor control loop.
|Packages: LQFP: 144 pin - 20 x 20; nfBGA: 337 pin - 16 x 16, 0.8 mm; -40 to 125 °C temperature range
The safety manual and safety analysis reports, details how to implement Hercules micro-controllers, PMIC and motor driver in a safety-critical application, as well as failure modes, effects and diagnostic analysis meet safety standards. Hercules development kits and Hercules TMS570 motor control kit are available along with a compiler qualification kit. Autosar software for ISO 26262 with protection mechanisms to ASIL D are offered by TTTech and Vector. ISO 26262 Autosar support is available from Vector and Elektrobit. Hercules TMS570 micro-controllers and a variety of software and tools are already available for order. The TPS65381-Q1 and DRV3201-Q1 will be available in December 2012.
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