Product Overview
The Allegro A1318 and A1319 are linear Hall-effect sensor ICs designed for high-accuracy applications such as displacement and angular position sensing. These temperature-stable devices feature non-volatile memory for optimizing sensitivity and quiescent voltage output (QVO), ensuring sustained performance across a wide operating temperature range of 40C to 150C. They provide a ratiometric voltage output proportional to the applied magnetic field, with a QVO adjusted around 50% of the supply voltage. Ideal for automotive and industrial applications, these sensors are available in miniature surface-mount and through-hole packages. Notably, these parts are classified as NOT FOR NEW DESIGN and are restricted to existing customer applications.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: Linear Hall-Effect Sensor IC
- Package Types: SOT-23W (Surface-Mount), Ultramini SIP (Through-Hole)
- Lead Finish: 100% Matte-Tin
- Certifications: Lead (Pb) free
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Product Status | NOT FOR NEW DESIGN (Restricted to existing customer applications) | - |
| Supply Voltage (VCC) | 3.0 to 3.63 | V |
| Operating Ambient Temperature | -40 to 150 | C |
| Maximum Junction Temperature | 165 | C |
| Supply Current (ICC) | 7.7 (typ) | mA |
| Internal Bandwidth (BWi) | 20 (typ) | kHz |
| Chopping Frequency (fC) | 400 (typ) | kHz |
| Output Referred Noise (VN) | 13 (typ) | mV(p-p) |
| Input Referred RMS Noise Density (VNRMS) | 2.3 (typ) | mG/Hz |
| Output Load Resistance (RL) | 4.7 (min) | k |
| Output Load Capacitance (CL) | 10 (max) | nF |
| Sensitivity Temperature Coefficient (TCSens) | 0.08 to 0.16 | %/C |
| Linearity Sensitivity Error (LinERR) | 1.5 (typ) | % |
| Symmetry Sensitivity Error (SymERR) | 1.5 (typ) | % |
| Ratiometry Quiescent Voltage Output Error (RatVOUT(Q)) | 1.5 (typ) | % |
| Ratiometry Sensitivity Error (RatSens) | 1.5 (typ) | % |
| Ratiometry Clamp Error (RatVOUTCLP) | 1.5 (typ) | % |
| Typical Quiescent Voltage Output Drift Across Temperature (VOUT(Q)) | -15 to 13 (varies by model) | mV |
| Sensitivity Drift Due to Package Hysteresis (SensPKG) | 2 (typ) | % |
| SOT-23W Package Dimensions (L x W x H) | 2 x 3 x 1 (approx.) | mm |
| SIP Package Dimensions (L x W x H) | 1.5 x 4 x 3 (approx.) | mm |
| Package LH Thermal Resistance (RJA, 1-layer PCB) | 228 | C/W |
| Package LH Thermal Resistance (RJA, 2-layer PCB) | 110 | C/W |
| Package UA Thermal Resistance (RJA, 1-layer PCB) | 165 | C/W |
| Model: A1318LLHLX-1-T Sensitivity | 1.35 (typ) | mV/G |
| Model: A1318LLHLX-2-T Sensitivity | 2.5 (typ) | mV/G |
| Model: A1318LUA-2-T Sensitivity | 2.5 (typ) | mV/G |
| Model: A1319LLHLX-5-T Sensitivity | 5 (typ) | mV/G |
| Model: A1319LUA-5-T Sensitivity | 5 (typ) | mV/G |
| Model: A1318LLHLX-1-T QVO | 1.65 (typ) | V |
| Model: A1318LLHLX-2-T QVO | 1.65 (typ) | V |
| Model: A1318LUA-2-T QVO | 1.65 (typ) | V |
| Model: A1319LLHLX-5-T QVO | 1.65 (typ) | V |
| Model: A1319LUA-5-T QVO | 1.65 (typ) | V |
2504101957_ALLEGRO-A1319LUA-5-T_C2688273.pdf
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