贴片线性磁轴传感器

SURFACE MOUNTNG LINEAR MAGNETIC SWITCH SENSOR

B1612 Hall-01，适用于磁轴键盘开关，通过霍尔传感器感应磁轴与芯片的距离，配合适合的磁体来实现按键行程感应，实现高速采样。

It internally integrates an IR-PT drive circuit and an ADC, converting the key distance into a digital signal. The host can read the digital signal through a dedicated 3-wire serial port. Multiple optical sensor drivers can be expanded for use in a daisy-chain configuration, enabling high-precision key distance detection and efficient transmission.

在电源工作电压范围内，芯片的静态(磁场强度为零)输出电压VQ典型值为电源电压一半。当垂直于芯片丝印面的南极磁场增强时，芯片的输出电压成比例增加;相反当北极作用于芯片的丝印面时，输出电压以相同比例同步减小。
芯片的最大输出电压常温下为Vcc-0.7V，最小输出电压为0.7V，其中线性区间范围为1.0V~Vcc-1.0V。

Within the operating voltage range of the power supply, the typical value of the chip's static output voltage (VQ) when the magnetic field strength is zero is half of the power supply voltage. When the south pole magnetic field perpendicular to the chip's silk screen surface increases, the chip's output voltage proportionally increases; conversely, when the north pole acts on the chip's silk screen surface, the output voltage decreases synchronously in the same proportion.

The maximum output voltage of the chip at room temperature is Vcc - 0.7V, and the minimum output voltage is 0.7V, with the linear range being 1.0V to Vcc - 1.0V.