These parts are in production, but have been determined not to fit into the new design. This classification indicates that sales of this device are currently limited to existing customer applications. For new design applications, do not purchase this device as it is likely to be obsolete soon. Samples are no longer available. Date of Status Change: August 14, 2014.
Recommended replacement products: For existing customer migrations, please refer to ATS692LSHTN-RSNBL-T for new customers or new applications.
ATS651LSH is a mechatronic assembly with integrated Hall-effect sensor ICs and rare earth magnets that provide an easy-to-use solution for speed and direction sensing applications. The thermoset molded plastic package contains a samarium-cobalt magnet and a Hall-effect IC optimized for magnetic circuits. The device is designed for high reliability in harsh automotive environments. The IC uses a patented algorithm to meet the special operating requirements of transmission applications.
The two-wire device transmits the velocity and direction of the ferromagnetic target via a pulse-width modulation (PWM) output protocol. The innovative dual-differential detector scheme uses three Hall elements and two independent signal processing channels. Higher reliability than conventional designs. Because there is only one channel control switch, the output signal (whether it is forward or backward target rotation) can be determined using the same edge of each gear tooth, and the direction information on the first magnetic edge can be used after the direction is changed.
The biggest advantage of ATS651LSH is that it handles vibration without degrading maximum air gap performance or generating false "directional" pulses. Even high-angle vibrations generated by engine start-up are completely eliminated by the device. Advanced vibration detection algorithms systematically calibrate the IC against the true rotation signal of the first three half teeth instead of vibration, thus ensuring the accuracy of the signal in operating mode at all times.
The patented operating mode also provides protection in the event of an air gap change, regardless of whether the target is in motion or not. Advanced signal processing and innovative algorithms make ATS651LSH an ideal solution for a wide range of speed and direction sensing needs.
The device is in a lead-free package with a 100% matte tin plated pin frame.
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旋转方向检测
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全优化数字差分齿轮齿传感器 IC
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可实现高可靠性的单芯片感测 IC
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小型机械尺寸（8 毫米直径 × 5.5 毫米垂直线, 平面至平面）
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用于双线式操作的内部稳流器
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自动增益控制 (AGC) 和参考调整电路
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3 比特工厂微调，实现严格的脉宽精确度
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真零速操作
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较宽的操作电压范围
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欠压锁定
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限定通电状态
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ESD 和反极性保护