HAL3625霍尔传感器

HAL3625 线性可编程霍尔传感器
360°可编程霍尔传感器
The HAL 36xy family is a new generation of Hall-effect sensors. Due to its advanced vertical Hall-plate technology it enables the possibility to measure magnetic fields in the chip plane. With this technology it is possible to directly measure rotation angles in a range of 0° to 360° with simple magnetic arrangements. The first member of this family is the HAL 3625.

Two on-chip vertical Hall plates measure both magnetic field components BX and BY. The direct angle information is internally calculated by the sensor using the inverse tangent function and converted into an *og output voltage. Due to the measurement method, the sensor provides an excellent drift performance over temperature and therefore a new cl* of accuracy.

The sensor provides a linear, ratiometric *og output signal with implemented wirebreak detection working with a pull-up or pull-down resistor. Major characteristics like gain and offset of X- and Y-channel, zero-angle position, phase shift between X- and Y-channel, output slope and offset and clamping levels can be adjusted to the magnetic circuit by programming the non-volatile memory.

The HAL 3625 is available in the very *all SOIC8 SMD package.

Main Features

♦ Angular accuracy of &plu*n;1.0° for 360° angle range
♦ Angle measurement is extremely is robust against temperature and stress influence
♦ Ratiometric linear *og output is proportional to the measured angle
♦ Integral non-linearity error of output signal &plu*n;0.1% of VDD
♦ Ratiometric error of output signal &plu*n;0.2%
♦ Output response time 1 ms (slow mode)
♦ Low output noise of 0.2° rms
♦ Wire-break detection with pull-up or pulldown resistor
♦ Over- and undervoltage detection
♦ Programmable characteristics in a nonvolatile memory with redundancy and lock function
♦ Programming of the sensor via its output with TTL level
♦ Programmable output slope and offset
♦ X- and Y-channel gain and offset of signal path programmable
♦ Phase shift between X- and Y-channel programmable
♦ Programmable output clamping voltages for error band definition
♦ Programmable magnet lost detection
♦ 32 bit identification number for customer
♦ Operates from –40 °C up to 170 °C junction temperature
♦ Operates from 4.5 V up to 5.5 V supply voltage
♦ Short-circuit protected push-pull output
♦ Over- and reverse-voltage protection at VDD pin
♦ On-board diagnostic functions

Applications
♦ Due to the sensor’s versatile programming
characteristics and its high accuracy,
the HAL 3625 is the optimal system
solution for applications such as:
– Contactless potentiometers
– Rotary position measurement