A1156LLHLX-T
Product images are for illustrative purposes only
Product details are welcome upon request

A1156LLHLX-T

  • Category:Hall switch
  • Product Name:Chopper-stabilized two-wire Hall-effect switch
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:SMD
  • Stock Status:There is stock
  • Stock Quantity:11320
  • Minimum order quantity: 1
  • Details:Click here to find pdf of the A1156LLHLX-T
  • Click Request a quote
Contact usOnline customer service1 Online customer service2 Click Send email
  • Product introduction

A1150, A1152, A1153, A1155, A1156, A1157, and A1158 are dualLine unipolar Hall-effect switchseries, factory adjusted for the highest magnetic switchpoint accuracy. These devices go through Allegro®Advanced BiCMOS wafer fabrication process, manufactured using its proprietary high-frequency four-phase chopper stabilization technology. This technology provides magnetic stability relative to all operating temperatures and eliminates the inherent offset of single-Hall element devices for harsh application environments.

The A115x Series has a variety of automotive applications. Includes sensing seat track position, seat buckle presence, hood/trunk locking, and shift selector position.

becauseTwo-wire unipolar switchWith less wire than conventional open-collector switches, two-wire unipolar switches are particularly suitable for cost-sensitive applications. Moreover, the system designer always has diagnostic information because the output current must always be within two narrow ranges. Any current level that is not in these two ranges indicates a fault.

All products are available in two package types. LH is a SOT-23W miniature low profile package for surface mount applications. UA is a three-pin ultra-small single in-line package (SIP) for via mounting. Both packages are lead (Pb) free and feature 100% matte tin coated leadframes.


  • High-speed four-phase chopping is stable
  • Low switchpoint drift relative to temperature range
  • Low sensitivity to thermal and mechanical stress
  • Chip protection
    • Power transient protection
    • Reverse battery protection
    • On-board voltage regulator
    • 3.0 to 24 V operating voltage
  • Solid-state reliability
  • Robust EMC and ESD performance
  • Industry-leading ISO 7637-2 performance using a proprietary 40-V clamping structure


andA1156LLHLX-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
A1156LLHLX-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch

Popular searches


Model Manufacturers lot number encapsulation illustrate
S34ML16G202BHI000 Flip Electronics 2051+ 63BGA 16 Gb, 3 V, 4-bit ECC, x8 I/O, SLC NAND Flash Memory for Embedded
FRCIR06RGG18-20S-F80-V0-M20-1.5F ITTVEAM 2023+ connector Connectors, Circular Connectors, Circular Plugs & Receptacles
CL1215-02P72ET-U2 Schaltbau 2023+ Contactors CL1215/02 P 72ET-U2 1, 2 and 3 pole AC and DC NO contactors for voltages up to 1,500 V
CL1115-02P72ET-U2 Schaltbau 2023+ Contactors 1, 2 and 3 pole AC and DC NO contactors for voltages up to 1,500 V
D-U204N-KLGQ Mors Smitt 2023+ Relays No magnetic arc blow-out
D-U204N-KLCQ Mors Smitt 2023+ Relays No magnetic arc blow-out
MIP30F00830-S1048 Amphenol Positronic 2023+ connector MIP series connectors
C163C/110EV-R1 Schaltebao 2023+ Contactors Contactors
F670-H4V-XUU LEACH 2023+ Relays F670-H4V-XUU+SHKE470-110-AD
F670-H4VP-XUXU LEACH 2023+ Relays F670-H4VP-XUXU+SFE670-1-1
AZ16-12ZI-B1-1747-M20 SCHMERSAL 2023+ switch Safety switches
RX2025GE1 Surio 2023+ connector Extract, Remove, and Insert Tools Contact extraction tool #16
5106.021.09.24 Surio 2023+ connector Extract, remove, and insert tools Extract tool with pop-up
ABMPSE06T28M4SV0N AB Connectors 2023+ connector Plug with RFI Ground
ABMPSE06T36M2SV0N AB Connectors 2023+ connector Plug with RFI Ground
ABMP18T28M13SV0N AB Connectors 2023+ connector RAIL AND MILITARY LAND SYSTEMS
ABCIRHSE06JE1812SCNF80M32V0 AB Connectors 2023+ connector Halogen Free Bayonet Lock Connector Series
TSW-101-06-LM-D samtec 2023+ connector Classic PCB Header Strips, 0.100" pitch
TNL22ERT-62 ABB 2016+ Contactors 4P St Contactor Relay 77-143Vdc |Abb TNL22ERT-62
62EM1-00001 Microchip 2023+ Development board AgileSwitch® 62mm Electrical Master SiC Gate Driver Board

Allegro brand product recommendations


Model Manufacturers lot number encapsulation illustrate
A1155LUA-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1155LLHLX-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1153LUA-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1153LLHLX-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1153LLHLT-F-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1152LUA-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1152LLHLX-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1150LUA-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1150LLHLX-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1150LLHLT-T Allegro 15+ SMD Chopper-stabilized two-wire Hall-effect switch
A1126LUA-T Allegro 14+ .ZIP Chopper-stabilized omnipolar Hall-effect switch
A1126LLHLX-T Allegro 14+ .ZIP Chopper-stabilized omnipolar Hall-effect switch
A1126LLHLT-T Allegro 14+ .ZIP Chopper-stabilized omnipolar Hall-effect switch
A1125LUA-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1125LLHLX-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1125LLHLT-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1125EUA-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1125ELHLX-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1125ELHLT-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch
A1123LUA-T Allegro 14+ .ZIP Chopper-stabilized precision Hall-effect switch

Categorical search