TLE4941CHAMA2

TLE4941CHAMA2 is a differential two-wire hall effect sensor-IC for wheel speed applications. It is designed to provide information about rotational speed to modern vehicle dynamics control systems and ABS. The output has been designed as a two wire current interface. The sensor operates without external components and combines a fast power-up time with a low cut-off frequency. Excellent accuracy and sensitivity is specified for harsh automotive requirements as a wide temperature range, high ESD and EMC robustness. State-of-the art BiCMOS technology is used for monolithic integration of the active sensor areas and the signal conditioning circuitry. Finally, the optimized piezo compensation and the integrated dynamic offset compensation enable easy manufacturing and elimination of magnet offsets. The TLE4941C is additionally provided with an overmolded 1.8nF capacitor for improved EMI performance.

• Two-wire current interface, dynamic self-calibration principle
• Single chip solution, no external components needed
• High sensitivity, south and north pole pre-induction possible
• High resistance to piezo effects, large operating air-gaps
• Supply voltage range from 4.5 to 20V
• Supply current is 7mA typ at VCC=12V and TA=25°C
• Output rise/fall slew rate is 26mA/µs maximum at RM ≤ 150 ohm
• Supply voltage ripple is 6Vpp maximum at VCC=13V, 0 < f < 50KHz
• PG-SSO-2-4 package
• Junction temperature range from -40 to 150°C