Description
The TLE4999C8 is a dual channel linear Hall sensor with a bus-capable digital Short-PWM-Code (SPC) interface. Both channels are integrated on one die in the chip.
The highly accurate measurement channels (main and sub) can be used for a plausibility check on system level. This enables a high diagnostic coverage.
The sensor is developed in compliance to ISO 26262 (first edition 2011), supporting safety requirements on system level rated up to ASIL D.
Highest accuracy over a wide temperature range and lifetime is achieved by an integrated digital temperature- and stress-compensation.

FEATUREs
• Two highly accurate redundant Hall measurement channels (main and sub) integrated on one chip.
• Developed compliant to ISO 26262 (first edition 2011) Safety Element out of Context for safety requirements rated up to ASIL D.
• High diagnostic coverage by plausibility checking of main and sub signal on system level.
• Fast digital SPC interface with min. 0.5µs unit time for transmission of main and sub signals in less than 500 µs.
• Bus-capability for up to 4 sensor ICs on one data line.
• Selectable 12/14/16bit output signals, protected by CRC and rolling counter.
• Thin 8-pin SMD single sensor package.
• Operating automotive temperature range -40°C to 125°C.
• Digital temperature and stress compensation.
• Reverse-polarity and over voltage protection for VDD, GND and OUT pins.
• Main and sub channel programmable independently in EEPROM.
• Multipoint calibration up to 9 points.
• Frameholder mechanism.
• Single-wire SICI programming interface on output pin.
• 2 x 16 bit user-configurable ID in EEPROM.

PRO-SIL™ Features
• Safety Manual and Safety Analysis Summary Report.

Potential applications
• Robust replacement of potentiometers: No mechanical abrasion, resistant to humidity, temperature, pollution, and vibration.
• Linear and angular position sensing in automotive and industrial applications with highest accuracy requirements.
• Suited for safety applications such as pedal position, throttle position, and steering torque sensing.