DatasheetsPDF.com

A1160

Allegro
Part Number A1160
Manufacturer Allegro
Description Chopper-Stabilized Precision Hall Effect Switch
Published Jul 11, 2014
Detailed Description A1160 Chopper-Stabilized Precision Hall-Effect Switch With Advanced Diagnostics Features and Benefits • AEC-Q100 automo...
Datasheet PDF File A1160 PDF File

A1160
A1160

Overview
A1160 Chopper-Stabilized Precision Hall-Effect Switch With Advanced Diagnostics Features and Benefits • AEC-Q100 automotive qualified • Unipolar switchpoints • 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 The A1160 is a unipolar, Hall-effect switch with an externally enabled diagnostic function.
In normal operating mode, the A1160 functions as a standard, unipolar Hall-effect switch.
The output transistor turns on (output signal switches low) in the presence of a sufficient magnetic field (>BOP(max)).
Additionally, the output transistor of the A1160 switches off (output signal switches high) when the magnetic field is removed (< BRP(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 temperaturestable and stress-resistant, especially suited for operation Continued on t...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)