CMOSIS a member of the ams AG group, launched the CMV50000, an industry first global shutter CMOS image sensor offering high resolution of 48Mpixels...
ams AG added to its family of power management ICs (PMICs) for mobile multi-core ARM processors with the AS3722, which p...
“ams’ new magnetic position sensors offer integrated safety support features, providing automotive OEMs with a more robust set of diagnostic and self-test features in a magnetic position sensor than ever before, and as a result, enabling them to achieve the highest in ISO26262 safety standards compliance,” said Marcel Urban, Head of Marketing and Product Management for position sensors at ams.
The AS5270A/B devices are for many automotive applications including brake and gas pedals, throttle valve and tumble flaps, steering wheel position, chassis ride-height, Exhaust Gas Recirculation (EGR) valves, fuel-level measurement systems, and 2/4 wheel drive switching.
The new AS5270A and AS5270B system-on-chip (SOC) devices are 0 to 360o rotary magnetic position sensors, that provide contactless high resolution, absolute angle measurements.
The AS5270A/B were developed as SEooC (Safety Element out of Context) devices, as defined per the ISO26262 functional safety standard specification.
The AS5270A/B magnetic position sensors provide on-chip full datapath diagnostics, that test the entire device, from the Hall sensor front end, through the DSP engine that converts raw measurements of magnetic field strength into sine and cosine vectors, to the back-end interfaces and pins.
The AS5270A/B are stacked and aligned dual-die devices, AEC-Q100 Grade 0 qualified and come in MLF-16 surface mount packages for high-reliability and redundant operations. Separate package pins are provided for each die in order to avoid electrical fault in the device from affecting both dies.
With an internal 14-bit (0.22o) resolution front-end core Hall sensor array, the AS5270A/B devices provide true 12-bit output resolution. The Hall sensor front-ends also enable the devices to work with small, lower cost target magnets and support a wide magnetic field strength input range of 10-90mT.
The AS5270A provides an analog output, and the AS5270B provides either a digital SENT (Single Edge Nibble Transmission) or PWM (Pulse Width Modulation) output that is customer programmable. Both devices also support customer programmable angular range limit clamps, digital filtering, and output linearization features.
In addition, with the AS5270B there are customer programmable settings for various SENT and PWM interface protocol features. For both devices, one wire programming is accomplished via the output pin, and due to onboard charge-pumps no high voltage programming levels are required.
Once the one-time-programmable (OTP) fuses are blown, there is no possibility of the devices becoming inadvertently or maliciously reprogrammed, thus further reducing automotive safety risks.
The AS5270A/B position sensors operate off of a 5V supply voltage, and the supply and output pins are protected against overvoltage up to +20V. In addition, the supply pins are protected against reverse polarity up to -20V.
The AS5270A/B devices are immune to magnetic stray fields, thus ensuring accurate and repeatable measurements even in the nosiest of magnetic environments.
This results in reliable performance and reduced system cost, since there is no need for sophisticated shielding that is typically required by competitive magnetic position sensor ICs.
- 1AAEON Launches the PICO-KBU4, A Rugged and Expandable Compact SBC
- 2Toshiba to Deliver Value SAS SSDs Targeting SATA Applications
- 3New Current Sense Transformers Now Available at Wurth Electronics Midcom
- 4First 32-bit MCU to Feature Robust, Chip-level Security and Arm TrustZone Technology
- 5Portwell Anniunces New COM Express 3.0 Evaluation Board with 10GbE Solutions
- 6TI's New High-voltage Amplifiers Enable Accuracy in Error-Sensitive Industrial Applications
- 7Unleash Maximum Airflow with Lian Li PC-011 Air Chassis
- 8New Vishay Intertechnology Series of Direct Water-Cooled Wirewound Resistors
- 9BIOSTAR Unveils M500 M.2 2280 PCI-Express NVMe SSD
- 10HOLTEK New Higher Noise Immunity A/D Touch MCU BS86xxxC Series