The Infineon TLV4964-4TBXALA1 is a high-precision, low-power Hall effect latch sensor designed for a wide range of automotive and industrial applications. It features a stable magnetic behavior over temperature and supply voltage, ensuring reliable and accurate detection of magnetic fields. This sensor is suitable for applications requiring contactless position or speed sensing.

Applications

• Brushless DC motor commutation
• Position detection
• Speed sensing
• Revolution counting
• Open/close detection
• Automotive window lifters
• Automotive sunroof control
• Industrial automation equipment

Features

• High magnetic sensitivity: Provides accurate detection of small magnetic fields.
• Low power consumption: Suitable for battery-powered applications.
• Stable magnetic behavior: Ensures reliable performance over temperature and supply voltage.
• Latch operation: Output latches and remains in its state until the magnetic field changes polarity.
• Digital output: Provides a simple digital signal for easy interfacing with microcontrollers.
• Reverse polarity protection: Protects the sensor from damage due to incorrect wiring.
• Short circuit protection: Protects the sensor from damage due to short circuits.
• Small package: Available in a compact package for space-constrained applications.
• Temperature Range: Typically from -40°C to 150°C for automotive applications

Benefits

• Accurate position/speed sensing: Provides precise and reliable measurements.
• Energy efficient: Low power consumption extends battery life in portable devices.
• Robust performance: Stable magnetic behavior ensures consistent operation in harsh environments.
• Simplified system design: Digital output simplifies interfacing with microcontrollers.
• Enhanced system reliability: Protection features prevent damage from electrical faults.
• Compact size: Enables integration into small and space-constrained systems.
• Cost-effective solution: Provides a high-performance Hall effect sensor at a competitive price.

Additional Details

The TLV4964-4TBXALA1 operates on a supply voltage typically ranging from 3V to 5.5V. Its digital output switches between high and low states depending on the polarity of the applied magnetic field. The latching behavior ensures that the output remains stable even if the magnetic field fluctuates slightly. This sensor is designed to meet the stringent requirements of automotive applications, including AEC-Q100 qualification. The small package size and robust protection features make it a versatile and reliable choice for a wide range of sensing applications. Infineon provides detailed datasheets and application notes to assist designers in implementing this sensor in their systems. The device's switch points (Bop and Brp) are precisely defined to guarantee consistent operation.