Datasheet > HAL28XY

HAL28XY

更新时间： 2024-09-23 07:02:43

品牌	Logo	应用领域
MICRONAS		传感器
页数	文件大小	规格书
2页	237K
描述
Linear Hall-Effect Sensor Family with Digital Interfaces

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PRODUCT INFORMATION

Feb/2008

HAL 28xy

HAL^®28xy

Linear Hall-Effect Sensor Family with Digital Interfaces

The HAL 28xy family is a new generation of

programmable Hall-effect sensors.

Major characteristics like magnetic field

range, sensitivity, offset and the tempera-

ture coefficients of sensitivity and offset can

easily be adjusted to the magnetic circuit by

programming the non-volatile memory.

Magnetic characteristics extremely

robust against mechanical stress

Non-volatile EEPROM with redundancy

and lock function

It consists of members with different digital

interfaces, like LIN, PWM, and SENT

(SAE J2716). Due to its internal structure, it

is possible to easily generate new family

members. The built-in RISC processor

allows a fast implementation of new output

formats or customer-specific signal pro-

cessing. All members within this family can

be programmed without any additional pro-

gramming pin. Programming is done via LIN

frames or BiPhase-M telegrams depending

on the family member.

Major Applications

The HAL 28xy family is available in the very

small leaded package TO-92UT.

Due to the sensors’ versatile programming

characteristics and low drifts, the HAL 28xy

family is the optimal system solution for

applications such as

Features

High-precision linear Hall-effect sensor

Spinning-current offset compensation

Built-in temperature sensor

Contactless potentiometers

Angular measurements

(e.g. for fuel-level sensing)

Built-in RISC processor

Linear movement

(e.g. seat track position)

The HAL 28xy family features a Hall plate

with spinning current offset compensation

technique and a precise temperature sen-

sor which is used for temperature compen-

sation of both the Hall sensors’ sensitivity

and offset.

Digital signal processing

Linear force or torque measurements

Current sensing

Up to 12 bit resolution

Customer-programmable temperature

compensation of Hall sensitivity (2

order) and Hall offset (1 order)

Operating junction temperature range:

−40 °C up to 170 °C

The sensors’ signal path is handled by the

RISC processor. This is of great benefit

because analog offsets, temperature shifts,

and mechanical stress do not degrade the

digital signals.

Different interface options:

– LIN 2.0

– SENT

– PWM output up to 2 kHz

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