TI DRV5055A3ELPGMQ1

DRV5055-Q1 is a linear Hall effect sensor that responds proportionally to magnetic flux density. The device enables precise position sensing for applications with power management requirements across a wide range of uses.

The device operates from a 3.3V or 5V supply. In the absence of a magnetic field, the analog output drives to 1/2 VCC. The output varies linearly with applied magnetic flux density, and five sensitivity options provide maximum output voltage swing based on the desired sensing range. North and south magnetic poles produce unique voltages.

It detects magnetic flux perpendicular to the top of the package, and two package options provide different sensing orientations.

The device uses a ratiometric architecture that eliminates errors due to VCC tolerance when an external ADC uses the same VCC as its reference voltage. In addition, the device features magnet temperature compensation to offset magnet drift, delivering linear performance over a wide temperature range of -40°C to +150°C.

• Ratiometric linear Hall-effect magnetic sensor with analog output powered by 3.3V and 5V supply, providing VCC/2 quiescent offset voltage
• Magnetic sensitivity options (at ΔVCC = 5V):
  • A1: 100mV/mT, ±21mT range
  • A2: 50mV/mT, ±42mT range
  • A3: 25mV/mT, ±85mT range
  • A4: 12.5mV/mT, ±169mT range
  • A5: -100mV/mT, ±21mT range
• High-speed 20kHz sensor bandwidth
• Low-noise output with ±1mA driver
• Magnet temperature drift compensation
• AEC-Q100 qualified for automotive applications: Temperature Grade 0: -40°C to 150°C
• Standard industry packages: surface-mount SOT-23, through-hole TO-92

• Automotive position sensing
• Brake, accelerator, and clutch pedals
• Torque sensors, gear shifters
• Throttle position, leveling
• Powertrain and transmission components
• Absolute angle encoding
• Current sensing