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Specifications
Voltage - Supply:
3V~30V
Mfr. Part #:
APS12450LLHALT-3SLA
Package:
SOT-23W
Key Attributes
Model Number:
APS12450LLHALT-3SLA
Product Description
Product Overview
The APS12450 is a three-wire planar Hall-effect sensor IC designed for automotive safety-related systems, meeting ASIL B capability requirements. It features enhanced three-wire interface diagnostics for interconnect faults and a defined fault state for communication. Continuous background diagnostics are transparent to the host, reducing fault tolerant time. The sensor offers multiple product options for magnetic switchpoints, temperature coefficient, and output polarity, compatible with SmCo, NdFeB, or ferrite magnets. It is developed in accordance with ISO 26262:2011 and provides automotive-grade ruggedness with extended AEC-Q100 Grade 0 qualification, operating up to 175C junction temperature.
Product Attributes
- Brand: Allegro MicroSystems
- Origin: U.S.A.
- Certifications: ISO 26262:2011 (ASIL B capability pending assessment), AEC-Q100 Grade 0 qualification
- Material: RoHS COMPLIANT, lead (Pb) free with 100% matte-tin-plated leadframes
- 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 |
Key Features and Benefits
- Functional safety: Developed in accordance with ISO 26262:2011 (ASIL B pending assessment).
- Integrated background diagnostics: Signal path, regulator, Hall plate and bias, overtemperature detection, nonvolatile memory.
- Defined fault state.
- Multiple product options: Magnetic polarity, switchpoints, hysteresis, temperature coefficient, output polarity.
- Reduces module bill-of-materials (BOM) and assembly cost: ASIL B sensor can replace redundant sensors; integrated overvoltage clamp and reverse-battery diode.
- Automotive-grade ruggedness and fault tolerance: Extended AEC-Q100 Grade 0 qualification (operation to 175C junction temperature), 3 to 30 V operating voltage range, 8 kV HBM ESD, overtemperature indication.
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
Absolute Maximum Ratings
| Characteristic | Symbol | Rating | Unit |
| Supply Voltage | VCC | 35 | V |
| Reverse Supply Voltage | VRCC | 30 | V |
| Forward Output Voltage | VOUT | 30 | V |
| Reverse Output Voltage | VROUT | 0.3 | V |
| Output Current Sink | IOUT(SINK) | 12 | mA |
| Maximum Junction Temperature | TJ(MAX) | 165 | C |
| Storage Temperature | Tstg | 65 to 170 | C |
Operating Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. [1] | Max. | Unit |
| Supply Voltage | VCC | Operating, TJ < 165C | 3.0 | 30 | V | |
| Supply Current | ICC | 4.5 | mA | |||
| Power-On Time | ton | VCC > VCC(min), B < BRP(min) | 150 | s | ||
| Output Rise Time | tRISE | VPU = VCC, RPU = 3 k, COUT = 1 nF, IOUT < 12 mA | 2 | 4 | 15 | s |
| Output Fall Time | tFALL | VPU = VCC, RPU = 3 k, COUT = 1 nF, IOUT < 12 mA | 2 | 4 | 15 | s |
| Output On Voltage | VOUT(LOW) | VPU = VCC, < 3 s [5], IOUT < 12 mA | 10 | 20 | 30 | % |
| Output Off Voltage | VOUT(HIGH) | 70 | 80 | 90 | % | |
| Fault Reaction Time | tDIAG | 25 | 60 | s | ||
| Fault Mode Output Voltage | VOUT(FAULT) | VPU = VCC, < 3 s, IOUT < 12 mA | > VOUT(HIGH) MAX VPU | V | ||
| Overtemperature Shutdown | TSD | Temperature increasing | 205 | C | ||
| Overtemperature Hysteresis | TJHYS | 25 | C |
Magnetic Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. [1] | Max. | Unit |
| Sensitivity Temperature Coefficient | TCSENS | Relative to sensitivity at 25C | 0 to -0.2 | %/C | ||
| Analog Signal Bandwidth | f(-3dB) | 10 | kHz | |||
| Operate Point | BOP | APS124500SxA | 5 | 22 | 40 | G |
| Operate Point | BOP | APS124501SxA | 15 | 50 | 90 | G |
| Operate Point | BOP | APS124503SxA | 100 | 150 | 180 | G |
| Release Point | BRP | APS124500SxA | 40 | 22 | 5 | G |
| Release Point | BRP | APS124501SxA | 90 | 50 | 15 | G |
| Release Point | BRP | APS124503SxA | 180 | 150 | 100 | G |
| Hysteresis | BHYS | APS124500SxA | 10 | 45 | 80 | G |
| Hysteresis | BHYS | APS124501SxA | 30 | 100 | 180 | G |
| Hysteresis | BHYS | APS124503SxA | 200 | 300 | 360 | G |
| Symmetry | BSYM | BOP + BRP | -30 | 30 | G | |
| Jitter | BOP = 22 G, B = 100 GPK-PK, 1000 Hz | 0.25 | % |
2504101957_ALLEGRO-APS12450LLHALT-3SLA_C3716130.pdf
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