HAL3737 [MICRONAS]

Second-Generation 3D HALÂ® Sensor Family with Superior Angular Accuracy;


型号：	HAL3737
厂家：	MICRONAS
描述：	Second-Generation 3D HALÂ® Sensor Family with Superior Angular Accuracy
文件：	总2页 (文件大小：141K)
中文：	中文翻译
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PRODUCT INFORMATION

May/2014

HAL 37xy

HAL^®37xy

Second-Generation 3D HAL^®Sensor Family

with Superior Angular Accuracy

The HAL 37xy family is the second sensor

generation using Micronas’ proprietary

3D HAL technology, which offers a further

improvement of the angular performance.

Compared to the first generation, a 30%

lower angular error has been achieved.

temperature range resulting in a new class

of accuracy for angular or linear measure-

ments. The sensor features an arbitrarily

programmable stepwise linear characteris-

tic for linearization of the output signal.

Major characteristics can be adjusted to the

magnetic circuit by programming the non-

volatile memory.

◆ 12 bit ratiometric linear analog output for

HAL 372x

◆ Modulo 90°/120° output for HAL 3715

◆ 0.2 kHz to 2 kHz PWM (up to 12 bit) or

12 bit SENT output for HAL 373x

◆ Programmable arbitrary output charac-

Operation with magnetic fields down to

20 mT is enabled thanks to the improved

technology. HAL 3715 and HAL 372x pro-

vide a linear, ratiometric analog output sig-

nal with integrated wire-break detection

working with pull-up or pull-down resistors.

HAL 373x features digital output formats

such as PWM and SENT SAEJ2716 rev.

2010. The digital output format is customer

programmable.

teristic with up to 33 setpoints

◆ Operates from V

=4.5 V up to 5.5 V

SUP

The sensors contain advanced on-board

diagnostic features that enhance fail-safe

detection. The devices are designed for

automotive and industrial applications and

operate in the junction temperature range

from 40 °C up to 170 °C. The sensors are

available in a very small four-pin leaded

transistor package TO92UP, as well as in a

SOIC8 package.

◆ Operates from T =40 °C up to 170 °C

◆ Programming via the sensor’s output pin

◆ Programmable characteristics in

EEPROM with redundancy and lock

function

◆ 2 -order temperature-dependent offset

programmable for X/Y- or Z-channel

The sensors can measure three magnetic

◆ On-chip diagnostics

field components B , B , and B . This

Features

enables a set of potential applications for

position detection, such as wide distance,

angle or through-shaft angular measure-

ments. On-chip signal processing calcu-

lates the angle out of two of the magnetic

field components and converts this value

into an output signal. The sensor exhibits

excellent drift performance over the specified

◆ Short-circuit protected push-pull output

◆ Over-/reverse-voltage protection at

◆ Measurement extremely robust against

VSUP

temperature and stress influences

◆ Under- and overvoltage detection of

◆ Operating with magnetic field amplitudes

down to 20 mT with an angular accu-

racy of 0.5% FS (digital output, X-Y Hall

plates)

VSUP

◆ Wire-break detection with pull-up and

pull-down resistors

PRODUCT INFORMATION

May/2014

HAL 37xy

Available Types and Behavior

Major Applications

Type

Output Format

Analog Modulo

Analog

Detectable Field Component

The new HAL 37xy family is the optimal

system solution for applications, such as:

HAL 3715

HAL 3725

HAL 3726

HAL 3727

HAL 3735

HAL 3736

HAL 3737

B and B

◆ Linear movement measurements

(EGR, clutch, transmission position)

Analog

B and B

◆ Rotary position measurements

Analog

B and B

(gear selector, motor air management)

PWM and SENT

B and B

◆ Non-contact potentiometer

B and B

System Architecture

The sensors include two vertical and one

horizontal Hall plate with spinning current

offset compensation for the detection of X,

Y, or Z magnetic field components, a signal

processor for calculation and signal condi-

tioning of two magnetic field components,

protection devices, and a ratiometric linear

analog, PWM, or SENT output.

The spinning current offset compensation

minimizes the errors due to supply voltage

and temperature variations or external

package stress.

VSUP

Internally

stabilized

Supply and

Protection

Devices

Open-circuit,

Overvoltage,

Undervoltage

Detection

Protection

Devices

Temperature

Dependent

Bias

Oscillator

The signal path of HAL 37xy consists of two

channels (CH1 and CH2). Depending on

the product variant, two out of the three

magnetic field components are connected

to Channel 1 and Channel 2.

D/A

Analog

Output

X/Y/Z

Hall Plate

Converter

A/D

OUT

33 Setpoints

Linearization

DSP

X/Y/Z

Hall Plate

PWM/SENT

Module

The sensors can be used for angle mea-

surements in a range between 0° and 360°

(end-of-shaft and through-shaft setup), as

well as for robust position detection (linear

movement or position). The in-system cali-

bration can be utilized by the system

designer to optimize the performance for a

specific system. The calibration information

is stored in the on-chip EEPROM.

EEPROM Memory

Lock Control

Temperature

Sensor

A/D

Converter

Digital

Output

GND

The HAL 37xy is programmable by modu-

lating the output voltage. No additional pro-

gramming pin is needed.

Fig. 1: Block diagram of the HAL 37xy

All information and data contained in this product information are without any commitment, are not to be consid-

ered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or

development sample availability and delivery are exclusively subject to our respective order confirmation form. By

this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third

parties which may result from its use.

No part of this publication may be reproduced, photo-

copied, stored on a retrieval system, or transmitted

without the express written consent of Micronas GmbH.



Edition May 15, 2014; Order No. PI000149_001EN

Micronas GmbH Hans-Bunte-Strasse 19D-79108 Freiburg (Germany)P.O. Box 840D-79008 Freiburg (Germany)

Tel. +49-761-517-0Fax +49-761-517-2174E-mail: docservice@micronas.comwww.micronas.com

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