A1152-F, A1153-F, A1155-F, and A1156-F
Chopper-Stabilized Two-Wire Hall-Effect Switches
FEATURES AND BENEFITS
▪ AEC-Q1...
A1152-F, A1153-F, A1155-F, and A1156-F
Chopper-Stabilized Two-Wire Hall-Effect Switches
FEATURES AND BENEFITS
▪ AEC-Q100 automotive qualified ▪ Factory-set temperature coefficient (TC) for use with
ferrite magnets ▪ High-speed, 4-phase chopper stabilization ▪ Low switchpoint drift throughout temperature range ▪ Low sensitivity to thermal and mechanical stresses ▪ On-chip protection
▫ Supply transient protection ▫ Reverse-battery protection ▫ On-board voltage
regulator ▫ 3 to 24 V operation ▪ Solid-state reliability
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PACKAGE: 2-Pin, Ultra-Mini SIP (suffix UB)
1.5 mm × 4 mm × 4 mm
DESCRIPTION
The A1152-F, A1153-F, A1155-F, and A1156-F comprise a family of two-wire, unipolar, Hall-effect switches, which are factory-trimmed to optimize magnetic switchpoint accuracy. These devices are produced on the Allegro™ advanced BiCMOS wafer fabrication process, which implements a high-frequency, 4-phase, chopper stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments.
The A115x family has a number of automotive applications. These include sensing seat track position, seat belt buckle presence, hood/trunk latching, and shift selector position.
Two-wire unipolar switches are particularly advantageous in cost-sensitive applications because they require one less wire for operation versus the ...