tle4942 Infineon Technologies Corporation, tle4942 Datasheet - Page 3

• Manufacturer Part Number: tle4942
• Description: Differential Two-wire Hall Effect Sensor-ic For Wheel Speed Applications With Direction Detection
• Manufacturer: Infineon Technologies Corporation

Differential Two-Wire Hall Effect Sensor IC
Features
• Two-wire PWM current interface
• Detection of rotation direction
• Airgap diagnosis
• Assembly position diagnosis
• 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
• Wide operating temperature range
• TLE4942-1C: 1.8 nF overmolded capacitor
Type
TLE4942-1
TLE4942-1C
The Hall Effect sensor IC TLE4942-1 is designed to provide information about rotational
speed, direction of rotation, assembly position and limit airgap to modern vehicle dynamics
control systems and ABS. The output has been designed as a two wire current interface
based on a Pulse Width Modulation principle. 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 robustness and high EMC resilience. State-of-the-art BiCMOS technology
is used for monolithic integration of the active sensor areas and the signal conditioning.
Finally, the optimized piezo compensation and the integrated dynamic offset compensation
enable easy manufacturing and elimination of magnet offsets. The TLE4942-1 is
additionally provided with an overmolded 1.8 nF capacitor for improved EMI performance.
Data Sheet
Marking
4201R4
42C1R4
3
Ordering Code
Q62705-K738
Q62705-K709
PG-SSO-2-1
PG-SSO-2-2
Package
PG-SSO-2-1
PG-SSO-2-2
TLE4942-1C
V 3. 1, 2005-02
TLE4942-1