Features
 Withstands 60V at BAT Supply and Hall Inputs
 6V to 18V Operating Voltage Range
 Provides Supply Current and Interfaces to Two
2-Wire Hall Sensors
 Error Output with Diagnostics of Hall Inputs and
BAT Voltage
 Protects Hall Sensors from Overvoltage by
Isolating Them from Supply Transients
 Hall Inputs Protected from Short to Ground
 Ramps Current to Hall Sensors at 4mA/μs
 Output Enable Input Allows Multiplexing of
Outputs from Multiple MAX9921s
 Hall Output Filtering
 Hall Sensor Blanking Following Hall Sensor
Power-Up or Restart
 Low-Power Shutdown, Controlled with OE and
DIAG Inputs
 Operates with ±2V Ground Shifts Between Hall
Sensor and MAX9921