Allegro MicroSystems A1160
The A1160 is a unipolar, Hall-effect switch with an externally enabled diagnostic function. The output transistor turns on (output signal switches low) in the presence of a sufficient magnetic field (>BOP(max)). The A1160 includes conductive coils in close proximity to the Hall element.| Part No. | A1160 |
|---|---|
| Datasheet | A1160 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | Chopper-Stabilized Precision Hall Effect Switch |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● AEC-Q100 automotive qualified● Unipolar switch points
● Externally enabled diagnostics feature
● Diagnostics feature exercises the entire magnetic and electrical signal path within the IC
● Resistant to physical stress
● Superior temperature stability through advanced chopper stabilization techniques
● Output short-circuit protection
● Internal regulator enables operation from unregulated supplies
● Reverse-battery protection
● Solid-state reliability
● Small surface-mount package PACKAGE: 5-pin SOT23W (suffix LH) Approximate footprint
DESCRIPTION
In normal operating mode, the A1160 functions as a standard, unipolar Hall-effect switch. Additionally, the output transistor of the A1160 switches off (output signal switches high) when the magnetic field is removed (< BRP(min)). 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.
