The new Hall sensors of Infineon Technologies AG enable automotive, industrial and consumer electronics to meet strict environmental standards. Also, they help fulfil the requirements of very cost-effective and compact designs. The Hall sensors of the new TLx496x family are highly integrated, have precise switching points, a stable operation and a low power consumption. They are available as latch and switch-type sensors.
The TLx496x Hall sensors consume no more than 1.6 mA. That is a power consumption of some 50 percent lower than comparable products. And the 5-V versions only consume 1.4 mA. The high ESD robustness and the precise, stable magnetic switching points are suitable for systems where energy efficiency, robustness and precision matter.
TLx496x Hall sensors reduce system costs. Two to four of the previously needed passive components are now redundant, which also reduces the amount of space they take up on the circuit board.
All of the TLx496x Hall sensors – switches and latches – have an integrated Hall element,a voltage regulator,choppers, an oscillator and an output driver. The voltage regulator powers the Hall element and the active circuits. The chopper ensures that the temperature remains stable and minimizes the effects of process fluctuations, which occur for three reasons.
First, each single Hall sensor has a slightly different magnetic switching point as a result of the manufacturing process; second, the permanent magnets in the brushless DC (BLDC) motor lose magnetic field strength as the temperature rises and third, the Hall output voltage is affected by stress and temperature. The TLx496x Hall sensors compensate all of these effects. This is why they switch very precisely over the entire specified temperature range and total lifespan.
