ATS665LSG
True Zero-Speed Hall-Effect Adaptive Gear-Tooth Sensor IC

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Features and Benefits

• True zero-speed operation
• Switchpoints independent of air gap
• High vibration immunity
• Precise duty cycle signal over operating temperature range
• Large operating air gaps
• Defined power-on state
• Wide operating voltage range
• Di*al output representing target profile
• Single-chip sensing IC for high reliability
• Small mechanical size
• Optimized Hall IC magnetic system
• 200 μs power-on time at gear speed <100 rpm
• AGC and reference adjust circuit
• Undervoltage lockout

Description

The ATS665 true zero-speed gear tooth sensor IC is an optimized Hall IC/rare earth pellet configuration designed to provide a user-friendly solution for di*al gear tooth sensing applications. The over-molded package, holds together a samarium cobalt pellet, a pole piece and a true zero-speed Hall IC that has been optimized to the magnetic circuit. This *all package can be easily *embled and used in conjunction with gears of various shapes and sizes.

The device incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ferromagnetic target. The IC contains a sophisticated compensating circuit designed to reduce the detrimental effects of magnet and system offsets. Di*al processing of the *og signal provides zero speed performance independent of air gap and also dynamic adaptation of device performance to the t*ical operating conditions found in automotive applications (reduced vibration sensitivity). High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal *ociated with the targets used in many automotive applications.

This ATS665’s ability to provide tight duty cycle at high speeds and over a wide temperature range makes it ideal for tran*ission and industrial speed applications. The ATS665 is available in the SG package in the automotive temperature range, -40°C to 150°C (L). It is lead (Pb) free with 100% matte tin leadframe plating.

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Functional Block Diagram

企业名：上海中霍电子电器有限公司

类型：经销商

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