DRV425-Q1 Automotive, Integrated Fluxgate Magnetic-Field Sensor

1 Features

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to +125°C, T_A
• Functional Safety-Capable
  • Documentation available to aid functional safety system design
• High-precision, integrated fluxgate sensor:
  • Offset: ±8 µT (max)
  • Offset drift: ±5 nT/°C (typ)
  • Gain error: 0.04% (typ)
  • Gain drift: ±7 ppm/°C (typ)
  • Linearity: ±0.1%
  • Noise: 1.5 nT/√Hz (typ)
• Sensor range: ±2 mT (max)
  • Range and gain adjustable with external resistor
• Selectable bandwidth: 47 kHz or 32 kHz
• Precision reference:
  • Accuracy: 2% (max), drift: 50 ppm/°C (max)
  • Pin-selectable voltage: 2.5 V or 1.65 V
  • Selectable ratiometric mode: VDD / 2
• Diagnostic features: Overrange and error flags
• Supply voltage range: 3.0 V to 5.5 V

2 Applications

• Battery management system (BMS)
• Inverter and motor control
• DC/DC converter
• Powertrain current sensor
• Powertrain torque sensor
• Motor diagnostics and monitoring