A1160是单极，霍尔效应开关，具有外部启用的诊断功能。在正常操作模式下，A1160用作标准的单极霍尔效应开关。在存在足够的磁场（> B的情况下，输出晶体管在存在时打开（输出信号开关低）OP(max)). Additionally, the output transistor of the A1160 switches off (output signal switches high) when the magnetic field is removed (RP(min)).
The A1160 includes conductive coils in close proximity to the Hall element. When the diagnostic feature is enabled, these coils are energized. The energized coils generate an internal magnetic field that can be sensed by the Hall element. While in Diagnostic mode, the output of the A1160 provides a square wave output, which confirms the IC is properly sensing the internally generated magnetic field. The Diagnostic mode exercises the entire magnetic and electrical signal path internal to the IC, fully confirming functionality. Therefore, use of the A1160 either eliminates the need for redundant sensors in safety critical applications or increases robustness in safety critical applications that require redundant sensors (drive-by-wire systems and so forth).
The A1160 Hall-effect sensor IC is extremely temperature-stable and stress-resistant, especially suited for operation at temperature ranges up to 150°C. Superior high-temperature performance is made possible through advanced dynamic offset cancellation techniques, which reduce the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. This device includes, on a single silicon chip: a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a open-drain output able to sink up to 25 mA. An on-board regulator permits operation with supply voltages of 3.8 to 24 V.
The A1160 is provided in a 5-pin SOT23W. The package is lead (Pb) free, with 100% matte-tin leadframe plating.
