MLX92231LSE-AAA-010 - 3-Wire Hall Effect Switch, TSOT-23 | Melexis
N.º de pieza: MLX92231LSE-AAA-010 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.42 | $1,42 |
| 10 | $1.28 | $12,80 |
| 100 | $1.12 | $112,00 |
| 500 | $0.96 | $480,00 |
| 1.000 | $0.84 | $840,00 |
| 3.000 | $0.71 | $2.130,00 |
MLX92231LSE-AAA-010 Descripción general
A Hall-effect switch is a solid-state magnetic sensor that translates a magnetic field threshold into a binary electrical output. Hall switches belong to the magnetic sensors family, which in turn sits within the broader sensor hierarchy (sensor -> transducer -> semiconductor -> electronic component). Unlike mechanical reed switches, Hall switches contain no moving parts, exhibit microsecond response times, and survive billions of switching cycles, making them the preferred choice in automotive, industrial, and consumer position/proximity applications.
Key features of this variant include a pre-programmed operate and release point (Bop/Brp), integrated temperature compensation, ESD protection, and a wide 2.7V to 24V supply range that directly accepts 3.3V, 5V, 12V, and 24V rails without external regulation. The open-drain output requires a pull-up resistor and can interface directly with microcontrollers, logic inputs, or relay/coil driver stages.
The device integrates a chopper-stabilized Hall element, a precision comparator, a bandgap reference, and an open-drain output stage on a single CMOS die. Chopper stabilization minimizes the offset drift across temperature, enabling reliable switching thresholds over the full automotive Grade 0 temperature range. The 70 mA sink capability allows the IC to drive LEDs, optocouplers, or small relays directly.
Typical applications include automotive seatbelt buckles, gear-shift position sensing, BLDC motor commutation, contactless switches, and industrial limit switches. The wide supply range and AEC-Q100 qualification also suit 24V truck and off-road vehicle systems. Designers select this part when they need a robust, pre-calibrated, automotive-grade digital Hall switch with a compact TSOT-23 footprint.
For design, place a 100 nF decoupling capacitor close to VDD and a pull-up resistor (typically 10 kohm) on the open-drain output. Avoid routing high-current switching traces directly over the package to prevent magnetic crosstalk, and keep ferromagnetic materials at least a few millimeters from the device to avoid distorting the sensed field.
This page combines verified distributor pricing, drop-in alternatives, and engineering design notes that extend beyond the manufacturer datasheet to help engineers evaluate and source the MLX92231LSE-AAA-010 for production designs.
Alternativas directas para MLX92231LSE-AAA-010 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MLX92231LSE-AAA-009
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MLX92231LSE-AAA-019
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MLX92231LSE-AAA-010-RE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MLX92231LSE-AAA-010-SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MLX92231LSE-AAA-001
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MLX92231LSE-AAA-010 Valores máximos y características eléctricas
| Función | Unipolar Switch (South Pole) |
| Technology | Hall Effect |
| Tipo de salida | Open Drain |
| Supply Voltage (VDD) | 2.7 V to 24 V |
| DC Operating Voltage | 3.5 V to 24 V |
| Output Current (Sink) | 70 mA |
| Temperatura de funcionamiento | -40 C to +150 C |
| Encapsulado | TSOT-23-3 |
| Tipo de montaje | Surface Mount (SMD/SMT) |
| Polarization | South Pole |
| Test Condition | 25 C |
| Series | Automotive, AEC-Q100 |
| Características | Temperature Compensated |
| Standard Package Quantity | 10,000 (Tape & Reel) |
| Estado RoHS | Compliant |
Configuración de pines de MLX92231LSE-AAA-010
| Pin 1 | VDD — Supply voltage (2.7 V to 24 V) |
| Pin 2 | GND — Ground reference |
| Pin 3 | OUT — Open-drain output (active low on south-pole threshold) |
Aplicaciones típicas
MLX92231LSE-AAA-010 es adecuado para 6 aplicacións: Automotive Seatbelt Buckle Sensor, Gear-Shift Position Detection, BLDC Motor Commutation, Industrial Contactless Limit Switch, Consumer Contactless Switch / Smart Lock, Truck and Off-Road Vehicle Sensing.
Automotive Seatbelt Buckle Sensor
The MLX92231LSE-AAA-010 detects the magnetic field from a small bias magnet embedded in the seatbelt buckle latch. Its south-pole unipolar switching function reliably indicates buckle engagement to the airbag controller. AEC-Q100 qualification and -40 C to +150 C operation suit cabin and seat-belt temperature extremes. The 70 mA open-drain output drives the airbag ECU logic level directly, while the 2.7 V to 24 V supply accepts the automotive 12 V bus without regulation.
Recomendado
Gear-Shift Position Detection
In automatic transmissions, the MLX92231LSE-AAA-010 senses the magnet attached to the shift lever to communicate Park, Reverse, Neutral, and Drive positions to the transmission control unit. The Hall-effect chopper-stabilized design provides stable switching thresholds over temperature, which is critical for reliable gear-state detection. Its TSOT-23-3 footprint fits the compact interior of a shift-by-wire assembly, and the 24 V supply tolerance handles inductive load transients on the 12 V bus.
Recomendado
BLDC Motor Commutation
The MLX92231LSE-AAA-010 can serve as a low-cost rotor-position sensor in brushless DC motor commutation when three devices are placed 120 electrical degrees apart around the stator. Its microsecond switching response and 70 mA sink drive logic-level FETs or pre-driver inputs. AEC-Q100 qualification and the wide operating temperature range suit automotive cooling fans and e-bike motors where reliability over temperature swing is essential.
Recomendado
Industrial Contactless Limit Switch
In factory automation, the MLX92231LSE-AAA-010 replaces mechanical limit switches on pneumatic cylinders and linear actuators, where a magnet on the moving piston triggers the Hall switch. The open-drain output interfaces with 24 V PLC digital inputs via a pull-up resistor. With no moving parts and IP-rated sealing, the contactless design achieves millions of cycles without wear, suiting high-cycle industrial applications on 24 V rails.
Recomendado
Consumer Contactless Switch / Smart Lock
Battery-powered smart locks and IoT proximity sensors use the MLX92231LSE-AAA-010 to detect the magnet in a closing lid or lock bolt. Its low quiescent current and 2.7 V minimum supply support multi-year coin-cell operation. The TSOT-23-3 footprint fits space-constrained consumer enclosures, and the open-drain output wakes the host MCU from sleep via a GPIO interrupt, enabling ultra-low-power always-on sensing.
Recomendado
Truck and Off-Road Vehicle Sensing
In 24 V truck platforms, construction equipment, and agricultural vehicles, the MLX92231LSE-AAA-010 directly interfaces with the 24 V battery bus, eliminating the need for a pre-regulator. Its AEC-Q100 qualification and 150 C thermal rating cover engine-bay and chassis-mounted sensor pods. The 70 mA open-drain output can drive indicator LEDs or relays directly, simplifying telematics and body-control modules.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MLX92231LSE-AAA-010 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MLX92231LSE-AAA-009 | MLX92231LSE-AAA-019 | MLX92231LSE-AAA-010-RE | MLX92231LSE-AAA-010-SP | MLX92231LSE-AAA-001 |
|---|---|---|---|---|---|---|
| Package | TSOT-23-3 | TSOT-23-3 - same | TSOT-23-3 - same | TSOT-23-3 - same | TSOT-23-3 - same | TSOT-23-3 - same |
| Brand | Melexis | Melexis | Melexis | Melexis | Melexis | Melexis |
| Function | Unipolar Switch (South Pole) | Unipolar Switch | Unipolar Switch | Unipolar Switch (South Pole) | Unipolar Switch (South Pole) | Unipolar Switch |
| Supply Voltage | 2.7 V to 24 V | 2.7 V to 24 V | 2.7 V to 24 V | 2.7 V to 24 V | 2.7 V to 24 V | 2.7 V to 24 V |
| Output Type | Open Drain | Open Drain | Open Drain | Open Drain | Open Drain | Open Drain |
| Output Current (Sink) | 70 mA | 70 mA | 70 mA | 70 mA | 70 mA | 70 mA |
| Operating Temperature | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified | Qualified |
| Bop/Brp Threshold | Pre-programmed per -010 variant | Pre-programmed (different value) | Pre-programmed (different value) | Same as -010 | Same as -010 | Pre-programmed (different value) |
Diferenciadores clave
- AEC-Q100 automotive qualified with 150 C thermal rating (frente a Generic Hall-effect switches)
- Wide 2.7 V to 24 V supply range (frente a 5 V-only Hall switches)
- 70 mA open-drain output drives loads directly (frente a 10 mA push-pull Hall switches)
Notas de diseño
Place a 100 nF ceramic decoupling capacitor as close as possible between VDD (pin 1) and GND (pin 2) to suppress inductive transients from the 12 V or 24 V automotive bus. Estimated: at 70 mA sink current, the IC draws very little quiescent current, so the decoupling capacitor need only handle high-frequency noise - a 100 nF X7R in a 0402 footprint is typical.
The open-drain output (pin 3) requires an external pull-up resistor. Without a pull-up, the output node floats and the host logic may see undefined levels. Choose a pull-up value between 1 kohm (for fast edges with capacitive loads) and 100 kohm (for low quiescent current). The pull-up voltage can be any rail up to 24 V, independent of VDD.
Keep ferromagnetic materials (steel screws, nickel-plated shields) at least 3 mm away from the TSOT-23 package to avoid distorting the sensed magnetic field. The MLX92231 senses perpendicular to the top marking surface - orient the package so the magnet's south pole approaches the marked face. Avoid routing high-current switching traces directly over the Hall cell area to minimize magnetic crosstalk.
Although the device is rated to 150 C junction, sustained operation near the upper limit reduces the device's lifetime. Estimated: at 70 mA sink current with VDD = 24 V and an output near 24 V, the on-chip dissipation is approximately 24 V * 70 mA = 1.68 W in the worst case, requiring thermal relief on the PCB land pattern. In practice, the output swings low for short durations, so average dissipation is well below 100 mW.
Información de cumplimiento
AEC-Q100 qualified per GlobalSpec datasheet listing ('Series: Automotive, AEC-Q100'). RoHS compliant per Melexis product page. Halogen-free status not explicitly stated in verified data - marked unknown.
