Allegro MicroSystems ATS667LSG High Accuracy Gear Tooth Sensor IC
Allegro MicroSystems ATS667LSG High Accuracy Gear Tooth Sensor IC features an optimized Hall IC-rare earth pellet configuration in a single overmolded package. The unique IC and package design offers a user-friendly solution for digital gear tooth sensing applications, and the small package can be easily assembled and used in conjunction with gears of various sizes and shapes. The ATS667LSG utilizes a dual-element Hall IC that switches in response to differential magnetic signals that are created by a ferromagnetic target. This IC features a sophisticated compensating circuit constructed to eliminate the detrimental effects of magnet and system offsets, while the digital processing of the analog signal provides zero-speed performance independent of air gap. Allegro MicroSystems ATS667LSG Sensor IC is available in a lead-free 4-pin SIP package and is suitable for transmission applications.
Features
- Optimized robustness against magnetic offset variation
- Small signal lockout for immunity against vibration
- Tight duty cycle and timing accuracy over full operating temperature range
- True zero-speed operation
- Air gap independent switch points
- Large operating air gaps achieved through use of gain adjust and offset adjust circuitry
- Defined power-on state (POS)
- Wide operating voltage range
- Digital output representing target profile
- Single-chip sensing IC for high reliability
- Small mechanical size
- Optimized Hall IC magnetic system
- Fast start-up
- Undervoltage lockout (UVLO)
Specifications
- 26.5V supply voltage
- -50mA reverse supply current
- 25mA output sink current
- Lead-free 4-pin SIP package
- 2ms maximum power-on time
- +165°C maximum junction temperature
Functional Block Diagram
Application Notes
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Published: 2023-05-16
| Updated: 2023-05-22