Product Overview
The APS12450 is a three-wire planar Hall-effect sensor IC designed for automotive safety-related systems, compliant with ISO 26262:2011 for ASIL B capability. It features enhanced three-wire interface diagnostics, including interconnect open/short detection and a fault state for communicating diagnostic information. The sensor offers continuous background diagnostics transparent to the host system, reducing fault tolerant time. Options include magnetic switchpoints, temperature coefficient, and output polarity, allowing compatibility with various magnet types. It is suitable for applications requiring functional safety and high reliability in harsh environments.
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
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 |
| 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) | 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, IOUT < 12 mA | 10 | 20 | 30 | % |
| Output Off Voltage | VOUT(HIGH) | 70 | 80 | 90 | % | |
| Fault Reaction Time | tDIAG | 25 | 60 | s | ||
| Overtemperature Shutdown | TSD | Temperature increasing | 205 | C | ||
| Sensitivity Temperature Coefficient | TCSENS | Relative to sensitivity at 25C | %/C | |||
| (A) Flat | 0 | %/C | ||||
| (B) SmCo | -0.035 | %/C | ||||
| (C) NdFeB | -0.12 | %/C | ||||
| (D) Ferrite | -0.2 | %/C | ||||
| Analog Signal Bandwidth | f(-3dB) | 10 | kHz | |||
| Operate Point | BOP | APS124500SxA | 5 | 22 | 40 | G |
| APS124501SxA | 15 | 50 | 90 | G | ||
| APS124503SxA | 100 | 150 | 180 | G | ||
| Release Point | BRP | APS124500SxA | 40 | 22 | 5 | G |
| APS124501SxA | 90 | 50 | 15 | G | ||
| APS124503SxA | 180 | 150 | 100 | G | ||
| Hysteresis | BHYS | APS124500SxA | 10 | 45 | 80 | G |
| APS124501SxA | 30 | 100 | 180 | G | ||
| APS124503SxA | 200 | 300 | 360 | G |
2401241356_ALLEGRO-APS12450LUAA-1SLA_C3716186.pdf
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