Dual Output Differential Speed and Direction Sensor
ATS17501
Dual Output Differential Speed and Direction Sensor IC
FEATURES AND BENEFITS
• High-speed switching bandwidth ...
Description
ATS17501
Dual Output Differential Speed and Direction Sensor IC
FEATURES AND BENEFITS
High-speed switching bandwidth up to 40 kHz Two independent output channels with options for high
resolution XOR speed, pulse, and direction protocol ASIL B(D) compliant (ISO 26262) Optional fault detection output protocol Immune to common external magnetic disturbance EEPROM enables factory traceability throughout product
life cycle Ideally suited for asynchronous electric motor applications
2
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PACKAGE:
Not to scale
4-Pin SIP (suffix SG)
DESCRIPTION
The ATS17501 is a single IC solution designed for rotational position sensing of a ferrous gear target found in automotive and industrial electric motor applications (often with specific application and safety requirements). The IC is housed in an SG package that incorporates a rare-earth magnetic pellet for ease of manufacturing, consistent application performance over temperature, and enhanced reliability.
Three Hall elements are incorporated to create two independent differential channels. These inputs are processed by digital circuits and robust algorithms designed to eliminate the detrimental effects of magnetic and system offsets, and to address false output transitions caused by target vibrations in electric motors at startup and low speed operation. The differential signals are used to produce a highly accurate speed output and, if desired, provide information on the direction of rotation.
Advanced calibration techniqu...
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