Planar Hall effect sensor ic with diagnostic communication ALLEGRO APS12450LUAA0SLA automotive safety ic
Product Description
The APS12450 is a three-wire planar Hall-effect sensor IC designed for automotive safety-related systems, developed in accordance with ISO 26262:2011 with ASIL B capability. It features an enhanced three-wire interface with interconnect open/short diagnostics and a fault state for diagnostic communication, maintaining compatibility with legacy systems. Continuous background diagnostics are transparent to the host, reducing fault tolerant time. Product options include magnetic switchpoints, temperature coefficient, and output polarity, with response adaptable to SmCo, NdFeB, or ferrite magnets. For a functionally equivalent three-wire switch device, refer to the APS11450.
Key Features and Benefits
- Functional safety developed to ISO 26262:2011 (ASIL B pending assessment)
- Integrated background diagnostics for signal path, regulator, Hall plate and bias, overtemperature detection, and nonvolatile memory
- Defined fault state
- Multiple product options for magnetic polarity, switchpoints, hysteresis, temperature coefficient, and output polarity
- Reduces module Bill-of-Materials (BOM) and assembly cost through ASIL B sensor replacing redundant sensors and integrated overvoltage clamp and reverse-battery diode
- Automotive-grade ruggedness and fault tolerance with extended AEC-Q100 Grade 0 qualification (operation to 175C junction temperature)
- 3 to 30 V operating voltage range
- 8 kV HBM ESD protection
- Overtemperature indication
- Monolithic ICs with on-chip reverse-battery protection, overvoltage protection (40 V load dump), ESD protection, overtemperature detection, and internal voltage regulator
- Available in industry-standard SOT (LH) and SIP (UA) packages, RoHS-compliant and lead (Pb) free
Typical Applications
- Automotive and industrial safety systems
- Seat/window motors
- Sun roof/convertible top/tailgate/liftgate actuation
- Brake and clutch by wire actuators
- Engine management actuators
- Electric power steering (EPS)
- Transmission shift actuator
Product Attributes
- Brand: Allegro MicroSystems
- Origin: U.S.A.
- Certifications: ISO 26262:2011 (ASIL B capability pending assessment), AEC-Q100 Grade 0
- Material: Monolithic ICs
- Color: Not specified
Technical Specifications
| Part Number | Package | Output Polarity | Temperature Coefficient | Magnetic Operate Point, BOP (typ) | Packing |
|---|---|---|---|---|---|
| APS12450LLHALX-0SLA | 3-pin SOT23W surface mount | Low | 0%/C | 22 G | 13-in. reel, 10,000 pieces/reel |
| APS12450LLHALT-0SLA | 3-pin SOT23W surface mount | Low | 0%/C | 22 G | 7-in. reel, 3000 pieces/reel |
| APS12450LUAA-0SLA | 3-pin SIP through-hole | Low | 0%/C | 22 G | bulk, 500 pieces/bag |
| APS12450LLHALX-1SLA | 3-pin SOT23W surface mount | Low | 0%/C | 50 G | 13-in. reel, 10,000 pieces/reel |
| APS12450LLHALT-1SLA | 3-pin SOT23W surface mount | Low | 0%/C | 50 G | 7-in. reel, 3000 pieces/reel |
| APS12450LUAA-1SLA | 3-pin SIP through-hole | Low | 0%/C | 50 G | bulk, 500 pieces/bag |
| APS12450LLHALX-3SLA | 3-pin SOT23W surface mount | Low | 0%/C | 150 G | 13-in. reel, 10,000 pieces/reel |
| APS12450LLHALT-3SLA | 3-pin SOT23W surface mount | Low | 0%/C | 150 G | 7-in. reel, 3000 pieces/reel |
| APS12450LUAA-3SLA | 3-pin SIP through-hole | Low | 0%/C | 150 G | bulk, 500 pieces/bag |
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