The ATS651LSH from Allegro MicroSystems Europe is a Hall-effect sensor module that is optimised to meet the requirements for speed and direction sensing in automotive transmission applications. In particular, the device employs patented algorithms that are designed to minimise the effects of vibration.
The ATS651LSH is an integrated Hall-sensor/magnet assembly containing a samarium-cobalt magnet and a Hall-effect IC. The solid thermoset moulded plastic package has been designed for high reliability in harsh automotive environments.
The two-wire device communicates the speed and direction of a ferrous target - typically a rotating gear - via a pulse-width-modulation (PWM) output protocol. The algorithms are designed to meet the special operational requirements of transmission applications, and the device is said to be particularly adept at handling vibration without sacrificing maximum air-gap capability or creating an erroneous 'direction' pulse. Even the higher angular vibration caused by engine cranking is completely rejected by the device, according to the manufacturer.
The advanced vibration detection algorithm systematically calibrates the sensor on the true rotation signals from the first three and a half teeth of the target and not on vibration, guaranteeing an accurate signal in running mode. Running-mode algorithms also protect against air-gap changes, whether or not the target is in motion. Direction information is always available on the first magnetic edge after a direction change.
Other features include an internal current regulator for 2-wire operation, automatic gain control and reference adjustment circuitry, true zero-speed operation, and a defined power-on state. The device will operate over a wide voltage range, and 3-bit factory trimming provides tight pulse-width accuracy. Undervoltage lockout circuitry and ESD and reverse polarity protection are included.
The device package measures 8 x 5,5 mm vertical and is lead (Pb) free.
For more information contact Simon Churches, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected]
Altron celebrates 60th birthday with a call to rebuild Johannesburg Altron Arrow
News
Altron is celebrating its 60th birthday by honouring Johannesburg’s heritage and encouraging business, government and civil society to come together and respond to our President’s call to rebuild Johannesburg.
Read more...Reference board for cardio monitoring Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STDES-ESP01 reference board from STMicroelectronics demonstrates the capability of the ST1VAFE6AX and ST1VAFE3BX biosensors to detect ECG and SCG signals.
Read more...ST MCUs extend ultra-low power innovation Altron Arrow
DSP, Micros & Memory
STMicroelectronics has introduced new STM32U3 microcontrollers with cutting-edge power-saving innovations that ease deployment of smart connected tech, especially in remote locations.
Read more...Multicell battery monitoring Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...Innovative satellite navigation receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released an innovative satellite navigation receiver to democratise precise positioning for automotive and industrial applications.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...High-voltage step-down DC-DC converter Altron Arrow
Power Electronics / Power Management
The MAX17793 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input voltage range of 3 to 80 V.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...Ultra-low power Bluetooth connectivity Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Silicon Labs’ delivers robust security and processing for common Bluetooth devices, while BG24L supports advanced AI/ML acceleration and Channel Sounding.
printer friendly version