Dual, 2-Wire Hall-Effect Sensor Interface With Diagnostics

The MAX9921 provides a single chip solution to Interface two 2-wire Hall-effect Sensors to a low-voltage micro- processor (P). This device supplies and monitors the cur- rent drawn by two Hall-effect Sensors Filters the sensed current level, and outputs the corresponding Logic level. The MAX9921 includes input diagnostics and fault pro- tection. These features allow the device to determine fault conditions such as open inputs, inputs shorted to the bat- tery, and inputs shorted to ground. If the MAX9921 detects any of these conditions at either IN1 or IN2, the device shuts off the current to the corresponding input. The MAX9921 protects the Hall Sensors from supply tran- sients up to 60V at the BAT supply. Normal operating supply voltage ranges from 6V to 18V. If the battery volt- age is out of range, the MAX9921 shuts off the current to the Hall Sensors By Maxim Integrated Products
MAX9921 's PackagesMAX9921 's pdf datasheet

MAX9921 Pinout, Pinouts
MAX9921 pinout,Pin out
This is one package pinout of MAX9921,If you need more pinouts please download MAX9921's pdf datasheet.

MAX9921 Application circuits
MAX9921 circuits
This is one application circuit of MAX9921,If you need more circuits,please download MAX9921's pdf datasheet.

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