TLE4997A8DXUMA1

板机接口霍耳效应/磁性传感器

Description:

The linear Hall IC TLE4997A8D has been specifically designed for highly accurate angle and position detection. The sensor provides a ratiometric analog output voltage, which is ideally suited to Analog-to-Digital A/D conversion with the supply voltage as a reference. The IC is produced in BiCMOS technology with high voltage capability and also provides reverse polarity protection. Digital signal processing using a 16-bit DSP architecture together with digital temperature and analog stress compensation guarantees excellent stability over the whole temperature range and life time.

Summary of Features:

.

Integration of two individual programmable Linear Hall sensor IC’s with ratiometric analog output signal.

.

20-bit Digital Signal Processing DSP

.

Digital temperature compensation

.

12-bit overall resolution

.

Operating automotive temperature range -40°C to 125°C

.

Low drift of output signal over temperature and lifetime

.

Programmable parameters stored in EEPROM with single-bit error correction:

.

Magnetic range and sensitivity gain, polarity of the output slope

.

Offset

.

Bandwidth

.

Clamping levels

.

Temperature compensation coefficients to accomodate most common magnet materials

.

Memory lock

.

Supply voltage 4.5-5.5 V 4-7 V extended range

.

Configurable magnetic range : ±50mT, ±100mT or ±200mT

.

Reverse-polarity and overvoltage protection for all pins

.

Output short-circuit protection

.

On-board diagnostics wire breakage detection, EEPROM error, overvoltage

.

Digital readout of internal temperature and magnetic field values in calibration mode

.

Programming and operation of multiple sensors with common power supply

.

Two-point calibration of magnetic transfer function