TLE4941CBAMA1

TLE4941CBAMA1 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 are specified for harsh automotive requirements such 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.

• Two-wire current interface, dynamic self-calibration principle
• Single chip solution, no external components needed
• High resistance to piezo effects, large operating air-gaps
• Wide operating temperature range, 1.8nF over moulded capacitor
• Supply voltage range from 4.5 to 20V (directly on IC leads; includes not the voltage drop at RM)
• Reverse polarity current is 200mA max (Tj = -40°C to 150°C, 4.5V ≤ Vcc ≤ 16.5V)
• Active lifetime is 10000h min (Tj = -40°C to 150°C, 4.5V ≤ Vcc ≤ 16.5V)
• ESD-protection is ±12kV max (R = 1.5kohm, C = 100pF)
• Differential induction is ±120mT
• PG-SSO-2-4 package, junction temperature range from -40 to 150°C