HAL2425DJ_技术文档

Hardware

Documentation

Data Sheet

®

HAL 2420, HAL 2425

High-Precision Programmable

Linear Hall-Effect Sensors with

Arbitrary Output Characteristics

Edition Nov. 3, 2020

DSH000174_003EN

DATA SHEET

HAL 2420, HAL 2425

Copyright, Warranty, and Limitation of Liability

The information and data contained in this document are believed to be accurate and reli-

able. The software and proprietary information contained therein may be protected by

copyright, patent, trademark and/or other intellectual property rights of TDK-Micronas. All

rights not expressly granted remain reserved by TDK-Micronas.

TDK-Micronas assumes no liability for errors and gives no warranty representation or

guarantee regarding the suitability of its products for any particular purpose due to

these specifications.

By this publication, TDK-Micronas does not assume responsibility for patent infringements

or other rights of third parties which may result from its use. Commercial conditions, prod-

uct availability and delivery are exclusively subject to the respective order confirmation.

Any information and data which may be provided in the document can and do vary in

different applications, and actual performance may vary over time.

All operating parameters must be validated for each customer application by customers’

technical experts. Any mention of target applications for our products is made without a

claim for fit for purpose as this has to be checked at system level.

Any new issue of this document invalidates previous issues. TDK-Micronas reserves

the right to review this document and to make changes to the document’s content at any

time without obligation to notify any person or entity of such revision or changes. For

further advice please contact us directly.

Do not use our products in life-supporting systems, military, aviation, or aerospace

applications! Unless explicitly agreed to otherwise in writing between the parties,

TDK-Micronas’ products are not designed, intended or authorized for use as compo-

nents in systems intended for surgical implants into the body, or other applications

intended to support or sustain life, or for any other application in which the failure of the

product could create a situation where personal injury or death could occur.

No part of this publication may be reproduced, photocopied, stored on a retrieval sys-

tem or transmitted without the express written consent of TDK-Micronas.

TDK-Micronas Trademarks

– HAL

Third-Party Trademarks

All other brand and product names or company names may be trademarks of their

respective companies.

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DATA SHEET

HAL 2420, HAL 2425

Contents

Page

Section

Title

4

5

6

1.

1.1.

1.2.

Introduction

Features

Major Applications

6

2.

Ordering Information

7

2.1.

Device-Specific Ordering Codes

8

3.

3.1.

Functional Description

General Function

10

11

15

19

20

21

3.2.

Signal path and Register Definition

Signal path

Register Definition

3.2.1.

3.2.2.

3.2.2.1.

3.2.2.2.

3.2.2.3.

3.2.2.4.

3.3.

RAM registers

EEPROM register

NVRAM Registers

Setpoint linearization accuracy

On-board Diagnostic features

Calibration of the sensor

3.4.

22

28

29

30

31

32

34

35

36

4.

4.1.

4.2.

Specifications

Outline Dimensions

Solderability, Welding, Assembly

Pin Connections and Short Descriptions

Physical Dimensions

Dimensions of Sensitive Area

Absolute Maximum Ratings

Storage and Shelf Life

Recommended Operating Conditions

Characteristics

Open-Circuit Detection

4.3.

4.4.

4.4.1.

4.5.

4.6.

4.7.

4.8.

4.9.

4.10.

4.11.

4.11.1.

Overvoltage and Undervoltage Detection

Magnetic Characteristics

Definition of Sensitivity Error ES

37

38

5.

Application Notes

Application Circuit

5.1.

5.2.

5.3.

Use of two HAL 242x in Parallel

Ambient Temperature

39

41

6.

Programming of the Sensor

Programming Interface

6.1.

6.2.

6.3.

Programming Environment and Tools

Programming Information

42

7.

Document History

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DATA SHEET

HAL 2420, HAL 2425

High-Precision Programmable Linear Hall-Effect Sensors with Arbitrary Output

Characteristics

Note

Revision bars indicate significant changes to the previous edition.

1. Introduction

HAL 242x is a family of programmable linear Hall-effect sensors consisting of two mem-

bers: the HAL 2420 and the HAL 2425.

Both devices are universal magnetic-field sensors with a linear output based on the Hall

effect. Major characteristics like magnetic-field range, sensitivity, output quiescent volt-

age (output voltage at B=0 mT), and output voltage range are programmable in a non-

volatile memory. The sensors have a ratiometric output characteristic, which means that

the output voltage is proportional to the magnetic flux and the supply voltage. Addition-

ally, both sensors offer wire-break detection.

The HAL 2425 offers 16 setpoints to change the output characteristics from linear to

arbitrary or vice versa.

Table 1–1: HAL 242x family members

Device

Key Function

HAL 2420

HAL 2425

2 Setpoints (calibration points)

16 Setpoints

The HAL 242x features a temperature-compensated Hall plate with chopper offset com-

pensation, an A/D converter, digital signal processing, a D/A converter with output

driver, an EEPROM with redundancy and lock function for the calibration data, a serial

interface for programming the EEPROM, and protection devices at all pins. The internal

digital signal processing is of great benefit because analog offsets, temperature shifts,

and mechanical stress do not degrade digital signals.

The easy programmability allows a 2-point calibration by adjusting the output signal

directly to the input signal (like mechanical angle, distance, or current). Individual

adjustment of each sensor during the final manufacturing process is possible. With this

calibration procedure, the tolerances of the sensor, the magnet, and the mechanical

positioning can be compensated in the final assembly.

In addition, the temperature compensation of the Hall IC can be fit to all common mag-

netic materials by programming first and second order temperature coefficients of the

Hall sensor sensitivity.

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DATA SHEET

HAL 2420, HAL 2425

It is also possible to compensate offset drift over temperature generated by the cus-

tomer application with a first order temperature coefficient for the sensor offset. This

enables operation over the full temperature range with high accuracy.

The calculation of the individual sensor characteristics and the programming of the

EEPROM can easily be done with a PC and the application kit from TDK-Micronas.

The sensors are designed for hostile industrial and automotive applications and operate

with typically 5 V supply voltage in the junction temperature range from 40 °C up to

170 °C. The HAL 242x is available in the very small leaded package TO92UT-1/-2 and

in the SOIC8-1 package.

1.1. Features

– High-precision linear Hall-effect sensors with 12-bit analog output

– 16 setpoints for various output signal shapes (HAL 2425)

– Multiple customer programmable magnetic characteristics in a non-volatile memory

with redundancy and lock function

– Programmable temperature compensation for sensitivity and offset

– Magnetic-field measurements in the range of 200 mT

– Low output voltage drifts over temperature

– Active open-circuit (ground and supply line break detection) with 5 k pull-up and

pull-down resistor, overvoltage and undervoltage detection

– Programmable clamping function

– Digital readout of temperature and magnetic-field information in calibration mode

– Programming and operation of multiple sensors at the same supply line

– Active detection of output short between two sensors

– High immunity against mechanical stress, ESD, EMC

– Operates from T_J= 40 °C up to 170 °C

– Operates from 4.5 V up to 5.5 V supply voltage in specification

and functions up to 8.5 V

– Operates with static magnetic fields and dynamic magnetic fields up to 2 kHz

– Overvoltage and reverse-voltage protection at all pins

– Short-circuit protected push-pull output

– Qualified according to AEC-Q100

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DATA SHEET

HAL 2420, HAL 2425

1.2. Major Applications

Due to the sensors’ versatile programming characteristics and low temperature drifts,

the HAL 242x is the optimal system solution for applications such as:

– Contactless potentiometers,

– Angle sensors (like throttle position, pedal position and EGR applications),

– Distance and linear movement measurements,

– Magnetic-field and current measurement.

2. Ordering Information

A Micronas device is available in a variety of delivery forms. They are distinguished by a

specific ordering code:

XXXNNNNPA-T-C-P-Q-SP

Further Code Elements

Temperature Range

Package

Product Type

Product Group

Fig. 2–1: Ordering Code Principle

For a detailed information, please refer to the brochure: “Micronas Sensors and Controllers: Order-

ing Codes, Packaging, Handling”.

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DATA SHEET

HAL 2420, HAL 2425

2.1. Device-Specific Ordering Codes

HAL 242x is available in the following package and temperature variants.

Table 2–1: Available packages

Package Code (PA)

Package Type

TO92UT-1/-2

SOIC8-1

UT

DJ

Table 2–2: Available temperature ranges

Temperature Code (T)

Temperature Range

T = 40 °C to +170 °C

A

J

The relationship between ambient temperature (T_A) and junction temperature (T_J) is

explained in Section 5.4. on page 29.

For available variants for Configuration (C), Packaging (P), Quantity (Q), and Special

Procedure (SP) please contact TDK-Micronas.

Table 2–3: Available ordering codes and corresponding package marking

Available Ordering Codes

HAL2420UT-A-[C-P-Q-SP]

HAL2420DJ-A-[C-P-Q-SP]

HAL2425UT-A-[C-P-Q-SP]

HAL2425DJ-A-[C-P-Q-SP]

Package Marking

2420A

2425A

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DATA SHEET

HAL 2420, HAL 2425

3. Functional Description

3.1. General Function

The HAL 242x is a monolithic integrated circuit which provides an output voltage pro-

portional to the magnetic flux through the Hall plate and proportional to the supply volt-

age (ratiometric behavior).

The external magnetic-field component perpendicular to the branded side of the pack-

age generates a Hall voltage. The Hall IC is sensitive to magnetic north and south polar-

ity. This voltage is converted to a digital value, processed in the Digital Signal Process-

ing Unit (DSP) according to the settings of the EEPROM registers, converted back to an

analog voltage with ratiometric behavior, and buffered by a push-pull output transistor

stage.

The setting of a LOCK bit disables the programming of the EEPROM memory for all

time. This bit cannot be reset by the customer.

As long as the LOCK bit is not set, the output characteristic can be adjusted by pro-

gramming the EEPROM registers. The IC is addressed by modulating the output volt-

age.

In the supply voltage range from 4.5 V up to 5.5 V, the sensor generates an analog out-

put voltage. After detecting a command, the sensor reads or writes the memory and

answers with a digital signal on the output pin. The analog output is switched off during

the communication. Several sensors in parallel to the same supply and ground line can

be programmed individually. The selection of each sensor is done via its output pin.

The open-circuit detection provides a defined output voltage if the V_SUPor GND line is

broken.

Internal temperature compensation circuitry and the spinning-current offset compensa-

tion enables operation over the full temperature range with minimal changes in accu-

racy and high offset stability. The circuitry also reduces offset shifts due to mechanical

stress from the package. The non-volatile memory consists of redundant EEPROM

cells. In addition, the sensor IC is equipped with devices for overvoltage and reverse-

voltage protection at all pins.

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DATA SHEET

HAL 2420, HAL 2425

VSUP

Internally

Open-circuit,

Temperature

Dependent

Bias

Stabilized

Supply and

Protection

Devices

Overvoltage,

Undervoltage

Detection

Protection

Devices

Oscillator

Linearization

16 Setpoints

(HAL 2425)

Digital

Signal

Processing

OUT

D/A

Converter

Switched

Hall Plate

A/D

Converter

Analog

Output

EEPROM Memory

Lock Control

Programming

Interface

Temperature

Sensor

A/D

Converter

GND

Fig. 3–1: HAL 242x block diagram

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DATA SHEET

HAL 2420, HAL 2425

3.2. Signal path and Register Definition

3.2.1. Signal path

CFX

MIC_COMP

SETPT

CUST_COMP

Hall-Plate

Micronas

Customer

Offset & Gain

Trimming

DAC Gain

& Offset

Scaling

Setpoint

Linearization

A

Offset & Gain

Trimming

D

TEMP_ADJ

Micronas

Temp-Sensor

Trimming

DAC Drift

Compensation

Output

Clamping

- C -

Temp-Sensor

DAC

GAINOFF

DAC

Fig. 3–2: Signal path of HAL 242x

3.2.2. Register Definition

The DSP is the major part of this sensor and performs the signal conditioning. The

parameters for the DSP are stored in the EEPROM registers. The details are shown in

Fig. 3–2.

Terminology:

GAIN: Name of the register or register value

Gain: Name of the parameter

The sensors signal path contains two kinds of registers. Registers that are readout only

(RAM) and programmable registers (EEPROM & NVRAM). The RAM registers contain

measurement data at certain positions of the signal path and the EEPROM registers

have influence on the sensors signal processing.

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DATA SHEET

HAL 2420, HAL 2425

3.2.2.1.RAM registers

TEMP_ADJ

The TEMP_ADJ register contains the calibrated temperature sensor information.

TEMP_ADJ can be used for the sensor calibration over temperature. This register has a

length of 16 bit and it is two’s-complemented coded. Therefor the register value can

vary between 32768 ... 32767.

CFX

The CFX register represents the magnetic-field information directly after A/D conver-

sion, decimation filter and magnetic range (barrel shifter) selection. The register content

is not temperature compensated. The temperature variation of this register is specified

in Section 4.11. on page 35 by the parameter RANGE_ABS

.

Note

During application design, it must be taken into consideration that CFX

should never overflow in the operational range of the specific application

and especially over the full temperature range. In case of a potential over-

flow the barrels shifter should be switched to the next higher range.

This register has a length of 16 bit and it is two’s-complemented coded. Therefor the

register value can vary between 32768 ... 32767. CFX register values will increase for

positive magnetic fields (south pole) on the branded side of the package (positive CFX

values) and it will decrease with negative magnetic-field polarity.

MIC_COMP

The MIC_COMP register is representing the magnetic-field information directly after the

Micronas temperature trimming. The register content is temperature compensated and

has a typical gain drift over temperature of 0 ppm/k. Also the offset and its drift over

temperature is typically zero. The register has a length of 16 bit and it is two’s-comple-

mented coded. Therefor the register value can vary between 32768 ... 32767.

CUST_COMP

The CUST_COMP register is representing the magnetic-field information after the cus-

tomer temperature trimming. For HAL 242x it is possible to set a customer specific gain

of second order over temperature as well as a customer specific offset of first order over

temperature. The customer gain and offset can be set with the EEPROM registers

TCCO0, TCCO1 for offset and TCCG0 ... TCCG2 for gain. Details of these registers are

described on the following pages.

The register has a length of 16 bit and it is two’s-complemented coded. Therefor the

register value can vary between 32768 ... 32767.

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DATA SHEET

HAL 2420, HAL 2425

SETPT

The SETPT register offers the possibility to read the magnetic-field information after the

linearization of the magnetic-field information with 16 setpoints. This information is also

required for the correct setting of the sensors DAC GAIN and OFFSET in the following

block.

The register has a length of 16 bit and it is two’s-complemented coded. Therefor the

register value can vary between 32768 ... 32767.

GAINOFF

The GAINOFF register offers the possibility to read the magnetic-field information after

the DAC GAIN and OFFSET scaling.

This register has a length of 16 bit and it is two’s-complemented coded. Therefor the

register value can vary between 32768 ... 32767.

DAC

The DAC register offers the possibility to read the magnetic-field information at the end

of the complete signal path. The value of this register is then converted into an analog

output voltage.

The register has a length of 16 bit and it is two’s-complemented coded. Therefor the

register value can vary between 32768 ... 32767.

MIC_ID1 and MIC_ID2

The two registers MIC_ID1 and MIC_ID2 are used by TDK-Micronas to store production

information like, wafer number, die position on wafer, production lot, etc. Both registers

have a length of 16 bit each and are readout only.

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DATA SHEET

HAL 2420, HAL 2425

DIAGNOSIS

The DIAGNOSIS register enables the customer to identify certain failures detected by

the sensor. HAL 242x performs certain self tests during power-up of the sensor and

also during normal operation. The result of these self tests is stored in the DIAGNOSIS

register. DIAGNOSIS register is a 16 bit register.

Bit No.

15:6

5

Function

Description

None

Reserved

State Machine (DSP)

Self-test

This bit is set to 1 in case that the state machine self-

test fails. (continuously running)

4

EEPROM Self-test

ROM Check

Adder overflow

None

This bit is set to 1 in case that the EEPROM self-test

fails. (Performed during power-up only)

3

This bit is set to 1 in case that ROM parity check fails.

(continuously running)

2

This bit is set to 1 in case that an overflow occurs during

calculation of the Micronas temperature compensation

1:0

Reserved

Details on the sensor self-tests can be found in Section 3.3. on page 21.

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DATA SHEET

HAL 2420, HAL 2425

PROG_DIAGNOSIS

The PROG_DIAGNOSIS register enables the customer to identify errors occurring dur-

ing programming and writing of the EEPROM or NVRAM memory. The customer must

either check the status of this register after each write or program command or alterna-

tively the second acknowledge. Please check the Programming Guide for HAL 242x.

The PROG_DIAGNOSIS register is a 16 bit register. The following table shows the dif-

ferent bits indicating certain errors possibilities.

Bit No.

15:11

10

Function

Description

None

Reserved

Charge Pump Error

This bit is set to 1 in case that the internal programming

voltage was to low

9

Voltage Error during

Program/Erase

This bit is set to 1 in case that the internal supply voltage

was to low during program or erase

8

NVRAM Error

This bit is set to 1 in case that the programming of the

NVRAM failed

7:0

Memory Programming

For further information please refer to the Programming

Guide for HAL 242x

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DATA SHEET

HAL 2420, HAL 2425

3.2.2.2.EEPROM register

EEPROM

SCALE_GAIN

TCCOx

TCCGx

DAC_GAIN

SCALE_OFFSET

SETPOINTx

CUSTOMER SETUP

DAC_OFFSET

Hall-Plate

Micronas

Offset & Gain

Trimming

Customer

Offset & Gain

Trimming

DAC Gain

& Offset

Scaling

Setpoint

Linearization

A

D

Digital Signal Processing

Temp-Sensor

Micronas

DAC Drift

Compensation

Output

Clamping

Temp-Sensor

Trimming

- C -

DAC

DAC_CMPLO

DAC_CMPHI

Fig. 3–3: Details of EEPROM and Digital Signal Processing

CUST_ID1 and CUST_ID2

The two registers CUST_ID1 and CUST_ID2 can be used to store customer informa-

tion. Both registers have a length of 16 bit each.

Barrel Shifter (Magnetic ranges)

The signal path of HAL 242x contains a Barrel Shifter to emulate magnetic ranges. The

customer can select between different magnetic ranges by changing the Barrel shifter

setting. After decimation filter the signal path has a word length of 22 bit. The Barrel

Shifter selects 16 bit out of the available 22 bit.

Note

In case that the external field exceeds the magnetic-field range the CFX

register will be clamped either to 32768 or 32767 depending on the sign

of the magnetic field.

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DATA SHEET

HAL 2420, HAL 2425

Table 3–1: Relation between Barrel Shifter setting and emulated magnetic range

BARREL SHIFTER

Used bits

22...7

Typ. magnetic range

not used

0

1

2

3

4

5

6

21...6

20...5

19...4

18...3

17...2

16...1

200 mT

100 mT

 50 mT

 25 mT

12 mT

 6 mT

The Barrel Shifter bits are part of the CUSTOMER SETUP register (bits 14...12). The

CUSTOMER SETUP register is described on the following pages.

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DATA SHEET

HAL 2420, HAL 2425

Magnetic Sensitivity TCCG

The TCCG (Sensitivity) registers (TCCG0 ... TCCG2) contain the customer setting for

the multiplier in the DSP. The multiplication factor is a second order polynomial of the

temperature.

All three polynomial coefficients have a bit length of 16 bit and they are two’s-comple-

mented coded. Therefor the register values can vary between 32768 ... 32767. In case

that the target polynomial is based on normalized values, then each coefficient can

vary between 1 ... +1. To store each coefficient into the EEPROM it is necessary to

multiply the normalized coefficients with 32768.

Example:

– Tccg0 = 0.5102 => TCCG0 = 16719

– Tccg1 = 0.0163 => TCCG1 = 536

– Tccg2 = 0.0144 => TCCG2 = 471

In case that the polynomial was calculated based on not normalized values of

TEMP_ADJ and MIC_COMP, then it is not necessary to multiply the polynomial coeffi-

cients with a factor of 32768.

Magnetic Offset TCCO

The TCCO (Offset) registers (TCCO0 and TCCO1) contain the parameters for the

adder in the DSP of the sensor. The added value is a first order polynomial of the tem-

perature.

Both polynomial coefficients have a bit length of 16 bit and they are two’s-comple-

mented coded. Therefor the register values can vary between 32768 ... 32767.

In case that the target polynomial is based on normalized values, then each coefficient

can vary between 1 ... +1. To store each coefficient into the EEPROM it is necessary

to multiply the normalized coefficients with 32768.

In case that the polynomial was calculated based on not normalized values of

TEMP_ADJ and MIC_COMP, then it is not necessary to multiply the polynomial coef-

SETPOINTS

HAL 2425 features a linearization function based on 16 setpoints. The setpoint linear-

ization in general allows to linearize a given output characteristic by applying the

inverse compensation curve.

Each of the 16 setpoints (SETPT) registers have a length of 16 bit. The setpoints have

to be computed and stored in a differential way. This means that if all setpoints are set

to 0, then the linearization is set to neutral and a linear curve is used.

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DATA SHEET

HAL 2420, HAL 2425

Sensitivity and Offset Scaling before setpoint linearization SCALE_GAIN/

SCALE_OFFSET

The setpoint linearization uses the full 16 bit number range 0...32767 (only positive val-

ues possible). So the signal path should be properly scaled for optimal usage of all 16

setpoints.

For optimum usage of the number range an additional scaling stage is added in front of

the set point algorithm. The setpoint algorithm allows positive input numbers only.

The input scaling for the linearization stage is done with the EEPROM registers

SCALE_GAIN and SCALE_OFFSET. The register content is calculated based on the

calibration angles. Both registers have a bit length of 16 bit and are two’s-comple-

mented coded.

Analog output signal scaling with DAC_GAIN/DAC_OFFSET

The required output voltage range of the analog output is defined by the registers

DAC_GAIN (Gain of the output) and DAC_OFFSET (Offset of the output signal). Both

register values can be calculated based on the angular range and the required output

voltage range. They have a bit length of 16 bit and are two’s-complemented coded.

Clamping Levels

The clamping levels DAC_CMPHI and DAC_CMPLO define the maximum and mini-

mum output voltage of the analog output. The clamping levels can be used to define the

diagnosis band for the sensor output. Both registers have a bit length of 16 bit and are

two’s-complemented coded. Both clamping levels can have values between 0% and

100% of V_SUP

.

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DATA SHEET

HAL 2420, HAL 2425

3.2.2.3.NVRAM Registers

Customer Setup

The CUST_SETUP register is a 16 bit register that enables the customer to activate

various functions of the sensor like, customer burn-in mode, diagnosis modes, function-

ality mode, customer lock, etc.

Table 3–2: Functions in CUST_SETUP register

Bit No. Function

Description

15

None

Reserved

14:12

Barrel Shifter

Magnetic Range

(see Section Table 3–1: on page 16)

11:10

9:8

None

Reserved

Output Short

Detection

0: Disabled

1: High & low side over current detection -> OUT = V_SUPin error case

2: High & low side over current detection -> OUT = GND in error case

3: Low side over current detection -> OUT = Tristate in error case

7:6

5

None

Reserved

1: Normal

Functionality

Mode

4

Communication Communication via output pin

Mode (POUT)

0: Disabled

1: Enabled

3

2

Overvoltage

Detection

0: Overvoltage detection active

1: Overvoltage detection disabled

Diagnosis Latch Latching of diagnosis bits

0: No latching

1: Latched till next POR (power-on reset)

1

0

Diagnosis

0: Diagnosis errors force output to error band (V_SUP)

1: Diagnosis errors do not force output to error band (V_SUP

Bit must be set to 1 to lock the sensor memory

)

Customer Lock

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DATA SHEET

HAL 2420, HAL 2425

3.2.2.4.Setpoint linearization accuracy

The set point linearization in general allows to linearize a given output characteristic by

applying the inverse compensation curve.

For this purpose the compensation curve will be divided into 16 segments with equal

distance. Each segment is defined by two setpoints, which are stored in EEPROM.

Within the interval, the output is calculated by linear interpolation according to the posi-

tion within the interval.

4

x 10

4

3

2

1

0

-1

-2

Linearized

Distorted

Compensation

-3

-4

-3

-2

-1

0

1

2

3

4

x 10

Fig. 3–4: Linearization - Principle

ys

n+1



yl

ys

n

xs xnl

xs

input

n

n+1

Fig. 3–5: Linearization - Detail

xnl: non linear distorted input value

yl: linearized value

 remaining error

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DATA SHEET

HAL 2420, HAL 2425

The constraint of the linearization is that the input characteristic has to be a monotonic

function. In addition to that it is recommended that the input does not have a saddle

point or inflection point, i.e. regions where the input is nearly constant. This would

require a high density of set points

3.3. On-board Diagnostic features

The HAL 242x features two groups of diagnostic functions. The first group contains

basic functions that are always active. The second group can be activated by the cus-

tomer and contains supervision and self-tests related to the signal path and sensor

memory.

Diagnostic features that are always active:

– Wire break detection for supply and ground line

– Undervoltage detection

– Thermal supervision of output stage (overcurrent, short circuit, etc.)

Diagnostic features that can be activated by customer:

– Overvoltage detection

– EEPROM self-test at power-on

– Continuous ROM parity check

– Continuous state machine self-test

– Adder overflow

The sensor indicates a fault immediately by switching the output signal to the upper

diagnosis level (max. Vout) in case that the diagnostic mode is activated by the cus-

tomer. The sensor switches the output to tristate if an over temperature is detected by

the thermal supervision. The sensor switches the output to ground in case of a V_SUP

wire break.

3.4. Calibration of the sensor

For calibration in the system environment, the application kit from TDK-Micronas is rec-

ommended. It contains the hardware for the generation of the serial telegram for pro-

gramming (HAL-APB V1.5) and the corresponding LabVIEW^TMbased programming

environment for the input of the register values.

For the individual calibration of each sensor in the customer application, a two point cal-

ibration is recommended.

A detailed description of the calibration software, calibration algorithm, programming

sequences and register value calculation can be found in the Application Note

“HAL 242x Programming Guide”.

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

21

DATA SHEET

HAL 2420, HAL 2425

4. Specifications

4.1. Outline Dimensions

Product

related to center of package

HAL24xy

0

ꢀ0.1

4.9

X

Y

D

related to center of package

-0.13

0.3

A

D

X

2

0.48

A

weight

0.076 g

4

3

1

PIN 1 INDEX

+Y

B ( 20 : 1 )

Y

1

.

2

0

.

-X

0

ꢀ

+X

9

.

6

3

gauge plane

D

ꢁ

center of

sensitive area

center of package x/y=0

-Y

5

2

.

0

5

8

6

7

ꢀ0.18

0.6

B

1.27

0.42

0,25ꢂ

C

A-B

D

ꢁ

1

.

Y

0.38x45°

0

ꢀ

5

6

.

A

0

5

d

0

.

1

e

.

0

t

0

a

ꢀ

l

ꢀ

2

p

2

4

.

n

.

0

S

1

5

7

0

.

0

B

ꢀ0.18

ꢀ

0.6

5

C

seating plane

0.1

7

1

.

0

ꢃ

C

seating plane

0

2.5

5 mm

scale

TOP VIEW

All dimensions are in mm.

Physical dimensions do not include moldflash.

Sn-thickness might be reduced by mechanical handling.

BOTTOM VIEW

Tin and lead burr on the pins (outside the package body outlines): max. 0.25

JEDEC STANDARD

SPECIFICATION

TYPE

ISSUE DATE

REVISION DATE

(YY-MM-DD)

PACKAGE

SOIC8-1

ANSI

REV.NO.

2

DRAWING-NO.

CSOIC0083011.1

(YY-MM-DD)

ITEM NO. ISSUE

MS-012

NO.

20-07-09

20-08-14

F

ZG

2115_Ver.02

c

Fig. 4–1:

SOIC8-1: Plastic Small Outline IC package, 8 leads, gullwing bent, 150 mil

Ordering code: DJ

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

22

DATA SHEET

HAL 2420, HAL 2425

user direction of feed

18.2 max

Devices per Reel: 3500

12 min

IEC STANDARD

ISSUE DATE

YY-MM-DD

ANSI

DRAWING-NO.

06836.0001.4

ZG-NO.

ISSUE

4th

ITEM NO.

60286-3

ZG002036_001_01

12-01-31

Fig. 4–2:

SOIC8: Tape and Reel Finishing

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

23

DATA SHEET

HAL 2420, HAL 2425

Product

HAL 242x/HAL 245x

short lead

14.7ꢀ0.2

1.55

0.295ꢀ0.09

0.2

standard

L

o

Y

gate remain

A

D

weight

0.12 g

ꢀ0.05

1.5

ꢀ0.05

4.06

D

1^+0.2

ꢁ

connected to PIN 2

0.7

center of

sensitive area

connected to PIN 2

Y

.

5

x

0

.

a

0

ꢀ

m

5

A

2

.

0

.

4

r

o

2

.

0

1

2

3

ꢀ

1

dambar cut,

not Sn plated (6x)

0.51 ⁺_-^0.1

0.08

a

e

r

a

g

L

n

i

d

l

e

ꢀ0.05

Sn plated

0.36

w

r

o

r

e

d

l

o

s

5

,

0

-

0

ꢀ0.05

0.43

Sn plated

ꢀ0.4

1.27

lead length,

not Sn plated (3x)

0

2.5

5 mm

scale

All dimensions are in mm.

Physical dimensions do not include moldflash.

FRONT VIEW

BACK VIEW

SPECIFICATION

Sn-thickness might be reduced by mechanical handling.

JEDEC STANDARD

ISSUE DATE

REVISION DATE

PACKAGE

TO92UT-2

ANSI

REV.NO.

2

DRAWING-NO.

CUTI00032507.1

(YY-MM-DD)

ITEM NO. ISSUE

TYPE

NO.

18-02-22

19-12-05

ZG

2090_Ver.02

c

Fig. 4–3:

TO92UT-2 Plastic Transistor Standard UT package, 3 leads, non-spread

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

24

DATA SHEET

HAL 2420, HAL 2425

a

n

gate remain

Product

short lead

HAL 242x/HAL 245x

14.7ꢀ0.2 standard

1.55

L

Y

A

0.295ꢀ0.09

0.2

D

weight

0.12 g

ꢀ0.05

4.06

ꢀ0.05

1.5

0.7

1^+0.2

connected to PIN 2

D

ꢁ

center of

sensitive area

Y

5

0

.

0

x

ꢀ

a

5

m

0

.

2

4

.

A

4

2

.

0.51 ⁺_-^0.1

0.08

0

1

2

3

ꢀ

1

dambar cut,

not Sn plated (6x)

4

-

2

a

e

r

a

g

L

n

i

d

l

e

w

r

o

r

e

d

l

o

s

ꢀ0.05

Sn plated

0.36

5

,

1

-

0

ꢀ0.05

Sn plated

0.43

ꢀ0.4

2.54

lead length cut

not Sn plated (3x)

0

2.5

scale

5 mm

All dimensions are in mm.

Physical dimensions do not include moldflash.

Sn-thickness might be reduced by mechanical handling.

BACK VIEW

FRONT VIEW

JEDEC STANDARD

SPECIFICATION

ISSUE DATE

REVISION DATE

PACKAGE

TO92UT-1

ANSI

REV.NO.

2

DRAWING-NO.

(YY-MM-DD)

ITEM NO. ISSUE

TYPE

NO.

18-02-22

19-12-06

CUTS00032506.1

ZG

2089_Ver.02

c

Fig. 4–4:

TO92UT-1 Plastic Transistor Standard UT package, 3 leads, spread

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

25

DATA SHEET

HAL 2420, HAL 2425

Δp

Δh

B

A

D0

F2

P2

F1

feed direction

P0

view A-B

H

H1

all dimensions in mm

TO92UA TO92UT

other dimensions see drawing of bulk

max. allowed tolerance over 20 hole spacings 1.0

Short leads 18 - 20 21 - 23.1

22 - 24.1

Long leads 24 - 26

27 - 29.1

28 - 30.1

Δp

UNIT

D0

4.0

F1

F2

Δh

L

P0

P2

T

T1

W

W0

W1

W2

1.47

1.07

1.47

1.07

11.0

max

13.2

12.2

7.05

5.65

mm

1.0

0.5

0.9

18.0

6.0

9.0

0.3

STANDARD

ISSUE DATE

YY-MM-DD

ANSI

DRAWING-NO.

ZG-NO.

ISSUE

-

ITEM NO.

ZG001031_Ver.05

IEC 60286-2

16-07-18

06631.0001.4

Fig. 4–5:

TO92UA/UT: Dimensions ammopack inline, not spread

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

26

DATA SHEET

HAL 2420, HAL 2425

Δp

Δh

B

A

D0

F2

P2

F1

feed direction

view A-B

P0

H

H1

all dimensions in mm

TO92UA TO92UT

21 - 23.1 22 - 24.1

other dimensions see drawing of bulk

max. allowed tolerance over 20 hole spacings 1.0

Short leads

Long leads

18 - 20

24 - 26

28 - 30.1

27 - 29.1

Δp

UNIT

mm

D0

4.0

F1

F2

Δh

L

P0

P2

T

T1

W

W0

6.0

W1

9.0

W2

0.3

2.74

2.34

2.74

2.34

11.0

max

13.2

12.2

7.05

5.65

1.0

0.5

0.9

18.0

JEDEC STANDARD

ISSUE DATE

YY-MM-DD

ANSI

DRAWING-NO.

06632.0001.4

ZG-NO.

ISSUE

-

ITEM NO.

ICE 60286-2

ZG001032_Ver.06

16-07-18

Fig. 4–6:

TO92UA/UT: Dimensions ammopack inline, spread

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

27

DATA SHEET

HAL 2420, HAL 2425

4.2. Solderability, Welding, Assembly

Information related to solderability, welding, assembly, and second-level packaging is

included in the document “Guidelines for the Assembly of Micronas Packages”.

It is available on the TDK-Micronas website (http://www.micronas.com/en/service-cen-

ter/downloads) or on the service portal (http://service.micronas.com).

4.3. Pin Connections and Short Descriptions

Pin No.

Pin Name Type

Short Description

SOIC8 Package

1

2

4

VSUP

Gnd

SUPPLY

Supply Voltage

GND

I/O

Ground

OUT

Output and Programming Pin

All remaining pins (3, 5, 6, 7, 8) must be connected to ground

Pin No.

Pin Name Type

Short Description

TO92UT Package

1

2

3

VSUP

Gnd

SUPPLY

Supply Voltage

GND

I/O

Ground

OUT

Output and Programming Pin

1

V

SUP

OUT

4

2 GND

(3, 5, 6, 7, 8)

Fig. 4–7: Pin configuration (SOIC8)

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

28

DATA SHEET

HAL 2420, HAL 2425

1

V

SUP

OUT

Pin 3

2 GND

Fig. 4–8: Pin configuration (TO92UT)

4.4. Physical Dimensions

4.4.1. Dimensions of Sensitive Area

250 µm x 250 µm

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

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DATA SHEET

HAL 2420, HAL 2425

4.5. Absolute Maximum Ratings

Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent

damage to the device. This is a stress rating only. Functional operation of the device at these

conditions is not implied. Exposure to absolute maximum rating conditions for extended peri-

ods will affect device reliability.

This device contains circuitry to protect the inputs and outputs against damage due to high

static voltages or electric fields; however, it is advised that normal precautions must be taken

to avoid application of any voltage higher than absolute maximum-rated voltages to this cir-

cuit.

All voltages listed are referenced to ground (GND).

Symbol

Parameter

Min.

Max.

10

18

2

Unit Condition

V_SUP

Supply Voltage

VSUP 8.5

18

V

t < 96 h⁴⁾

t < 1h⁴⁾

V_OUT

Output Voltage

OUT

6¹⁾

V_OUT V_SUPExcess of Output Voltage OUT,



over Supply Voltage

VSUP

T_J

Junction Temperature

Range

50

55

2

190²⁾°C

t < 96h⁴⁾

T

Transportation/Short-Term

Storage Temperature



150

2

°C

kV

Device only without packing

material

storage

V_{ESD_SOIC8}

ESD Protection for

SOIC8 package³⁾

All

Pins

HBM

AEC-Q-100-002

(100 pF / 1.5 k)

VSUP 8

vs.

8

GND

OUT

vs.

GND

8

8

kV

VSUP 8

vs.

OUT

V_{ESD_TO92}

ESD Protection for

TO92UT package³⁾

All

8

HBM

AEC-Q-100-002

(100 pF / 1.5 k)

Pins

1)

internal protection resistor = 50 

2)

3)

4)

for 96 hrs - Please contact TDK-Micronas for other temperature requirements.

For system ESD robustness, pins not used have to be connected to GND.

No cumulated stress

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

30

DATA SHEET

HAL 2420, HAL 2425

4.6. Storage and Shelf Life

Information related to storage conditions of Micronas sensors is included in the docu-

ment “Guidelines for the Assembly of Micronas Packages”. It gives recommendations

linked to moisture sensitivity level and long-term storage.

It is available on the TDK-Micronas website (http://www.micronas.com/en/service-cen-

ter/downloads) or on the service portal (http://service.micronas.com).

4.7. Recommended Operating Conditions

Functional operation of the device beyond those indicated in the “Recommended Oper-

ating Conditions/Characteristics” is not implied and may result in unpredictable behav-

ior, reduce reliability and lifetime of the device.

All voltages listed are referenced to ground (GND).

Symbol Parameter

V_SUPSupply Voltage

I_OUT

Min. Typ. Max. Unit

Remarks

VSUP 4.5

5

5.5

1.2

V

Continuous Output

Current

OUT

1.2

5.0



mA

R_L

Load Resistor

10



k

Can be pull-up or pull-

down resistor

C_L

Load Capacitance

OUT

0.33 10

600

100

nF

N_PRG

Number of EEPROM

Programming Cycles¹⁾



cycles 0 °C < T_amb< 55 °C

N_PRGNVNumber of NVRAM

Programming Cycles



5

cycles 0 °C < T_amb< 55 °C

T_J

Junction Temperature

Range²⁾

40

125

150

170

°C

for 8000 h³⁾

for 2000 h³⁾

for 1000 h³⁾

¹⁾In the EEPROM, it is not allowed to program only one single address within a 'bank' in the

memory. In case of programming one single address the complete bank has to be programmed.

²⁾Depends on the temperature profile of the application. Please contact TDK-Micronas for lifetime

calculations.

³⁾Time values are not cumulative.

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

31

DATA SHEET

HAL 2420, HAL 2425

4.8. Characteristics

at T_J= 40 °C to +170 °C, V_SUP= 4.5 V to 5.5 V, GND = 0 V after programming and locking,

at Recommended Operation Conditions if not otherwise specified in the column “Conditions”.

Typical Characteristics for T_J= 25 °C and V_SUP= 5 V.

Symbol

Parameter

Min. Typ. Max. Unit

Conditions

I_SUP

Supply Current

over Temperature Range

VSUP



7

11

mA

1)

Resolution⁵⁾

OUT



12

0



bit

ratiometric to V_SUP

DNL

INL

Differential Non-Linearity of D/ OUT

A Converter⁴⁾

0.9

0.9

LSB

Test limit at 25 °C ambient tem-

perature

Non-Linearity of Output Voltage OUT

over Temperature⁶⁾

0.3

0.25

0

0.3

%V_SUP²⁾For V_out= 0.35 V ... 4.65 V;

V

_SUP= 5 V ; Linear Setpoint

Characteristics

E_R

Ratiometric Error of Output

over Temperature

OUT

0

0.25

0.2

%

Max of [V_OUT5 V_OUT4.5and

V_OUT5.5 V_OUT5] at V_OUT= 10%

and 90% V_SUP

(Error in V_OUT/ V_SUP

)

V_offset

Offset Drift over Temperature

Range⁶⁾

0.1

%V_SUPV_SUP= 5 V ; BARREL SHIFTER

= 3 ( 50 mT)

V_OUT(B = 0 mT)_25°C V_OUT

(B = 0 mT)_max



V_OUTCLAccuracy of Output Voltage at

Clamping Low Voltage over

OUT

11

0

11

mV

R_L= 5 k, V_SUP= 5 V

Spec values are derived from

resolution of the registers

Temperature Range⁵⁾

DAC_CMPHI/LO and V_offset

.

V_OUTCHAccuracy of Output Voltage at

Clamping High Voltage over

Temperature Range⁵⁾

V_OUTH

V_OUTL

f_OSC

Upper Limit of Signal Band³⁾

Lower Limit of Signal Band³⁾

OUT



93



4



7



%V_SUPV_SUP= 5 V, 1 mA I_OUT1mA

MHz

Internal Oscillator Frequency

over Temperature Range



t_r(O)

Step Response Time of

Output⁶⁾

OUT



0.4

0.6

ms

C_L= 10 nF, time from 10% to 90%

of final output voltage for a step

like signal B_stepfrom 0 mT to B_max

t_POD

Power-Up Time (Time to Reach

Certain Output Accuracy)⁶⁾



ms

Additional error of 1% Full-Scale

Full accuracy

OUT

1.7

8.0

BW

Small Signal Bandwidth



2



kHz

(3 dB)⁶⁾

V_OUTrms

Output Noise Voltage RMS⁶⁾



1.5

mV

BARREL SHIFTER=3

Overall gain in signal path =1

External circuitry according to

Fig. 5–1 on page 38 with low-

noise supply

R_OUT

Output Resistance over Rec-

ommended Operating Range

OUT



1

10



V_OUTLmaxV_OUTV_OUTHmin

¹⁾Output DAC full scale = 5 V ratiometric, Output DAC offset = 0 V, Output DAC LSB = V_SUP/4096

2)

if more than 50% of the selected magnetic-field range is used and the temperature compensation is suitable.

INL = V_OUT- V_OUTLSFwith V_OUTLSF= Least Square Fit through measured output voltage

³⁾Signal Band Area with full accuracy is located between V_OUTLand V_OUTH. The sensor accuracy is reduced below

V_OUTLand above V_OUTH

⁴⁾External package stress or overmolding might change this parameter

⁵⁾Guaranteed by Design

⁶⁾Characterized on small sample size, not tested

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

32

DATA SHEET

HAL 2420, HAL 2425

Symbol

Parameter

Min. Typ. Max. Unit

Conditions

SOIC8 Package

Thermal Resistance

R_thja

R_thjc

Junction to Air



142

88

K/W

Determined with a 1s0p board

Determined with a 1s1p board

Determined with a 1s0p board

Determined with a 1s1p board

Junction to Case

33

22

TO92UT Package

Thermal Resistance

R_thja

Junction to Air



232

136

40

K/W

Determined with a 1s0p board

Determined with a 2s2p board

Determined with a 1s0p board

Determined with a 2s2p board

R_thjc

Junction to Case

36

¹⁾Guaranteed by Design

²⁾Characterized on small sample size, not tested.

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

33

DATA SHEET

HAL 2420, HAL 2425

4.9.Open-Circuit Detection

at T_J= 40 °C to +170 °C, Typical Characteristics for T_J= 25 °C

Symbol

Parameter

Min.

Typ.

Max. Unit

Comment

V_OUT

Output Voltage at

Open V_SUPLine

OUT

0

0.15

0.2

5.0

V

V_SUP= 5 V

R_L= 10 kto 200 k

0

V_SUP= 5 V

R_L= 5 kto 10 k

V_OUT

Output Voltage at

Open GND Line

OUT

4.85 4.9

V_SUP= 5 V

R_L= 10 kto 200 k

4.8

4.9

V_SUP= 5 V

R_L= 5 kto 10 k

R_L: Can be pull-up or pull-down resistor

4.10.Overvoltage and Undervoltage Detection

at T_J= 40 °C to +170 °C, Typical Characteristics for T_J= 25 °C, after programming and locking

Symbol

Parameter

Min.

Typ.

Max. Unit

Test Conditions

V_SUP,UV

Undervoltage

VSUP 3.3

3.9

4.3

V

Detection Level

V_SUP,UVhystUndervoltage

Detection Level

VSUP



200



mV

Hysteresis¹⁾

V_SUP,OV

Overvoltage

VSUP 5.6

6.2

6.9

V

Detection Level

V_SUP,OVhystOvervoltage

Detection Level

VSUP



225



mV

Hysteresis¹⁾

¹⁾Characterized on small sample size, not tested

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

34

DATA SHEET

HAL 2420, HAL 2425

4.11.Magnetic Characteristics

at T_J= 40 °C to +170 °C, V_SUP= 4.5 V to 5.5 V, GND = 0 V after programming and locking,

at Recommended Operation Conditions if not otherwise specified in the column “Conditions”.

Typical Characteristics for T_J= 25 °C and V_SUP= 5 V.

Symbol

Parameter

Min.

Typ.

Max. Unit

Test Conditions

SENS

Magnetic Sensitivity V_OUT/(2xRANGE_ABS

)

mV/mT Example:

For Barrel_shifter=5

and V_OUT= 4 V

RANGE_ABS= 12 mT

Sensitivity=4 V/

(2x12mT= 166 mV/mT

typ.

RANGE_ABSAbsolute Range of

CFX Register



6



200

mT

Programmable:

See Table 3–2 for rela-

tion between barrel

shifter and Magnetic

Range.

(Magnetic Range)¹⁾

B_Offset

Magnetic Offset¹⁾

OUT 0.4

0

0.4

5

mT

B = 0 mT, I_OUT= 0 mA,

T_J= 25 °C, unadjusted

sensor

B_Offset/T Magnetic Offset



5

T/K

B = 0 mT, I_OUT= 0 mA

BARREL SHIFTER = 3

( 50 mT)

1)

Change due to T_J

ES

Error in Magnetic

Sensitivity¹⁾

SOIC8

OUT

V_SUP= 5 V

BARREL SHIFTER = 3

( 50 mT)

1.5

1

0

1.5

1

%

TO92UT

¹⁾Characterized on small sample size, not tested

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

35

DATA SHEET

HAL 2420, HAL 2425

4.11.1.Definition of Sensitivity Error ES

ES is the maximum of the absolute value of the quotient of the normalized measured

value¹over the normalized ideal linear²value minus 1:

meas

ideal









-----------

ES = max abs

– 1



Tmin, Tmax

In the example below, the maximum error occurs at ^10 °C:

1.001

0.993

------------

ES =

– 1 = 0.8%

ideal 200 ppm/k

1.03

least-squares method straight line

of normalized measured data

measurement example of real

sensor, normalized to achieve a

value of 1 of its least-squares

method straight line at 25 °C

1.02

1.01

1.00

0.99

0.98

1.001

0.992

–25 ^-10

150

175

0

25

temperature [°C]

125

–50

50

75 100

Fig. 4–9: ES definition example

1. normalized to achieve a least-squares method straight line that has a value of 1 at 25 °C

2. normalized to achieve a value of 1 at 25 °C

TDK-Micronas GmbH

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DATA SHEET

HAL 2420, HAL 2425

5. Application Notes

5.1. Application Circuit

For EMC protection, it is recommended to connect one ceramic 47 nF capacitor each

between ground and the supply voltage, respectively the output voltage pin.

V

SUP

OUT

GND

HAL242x

47 nF

Fig. 5–1: Recommended application circuit

5.2.Use of two HAL 242x in Parallel

Two different HAL 242x sensors which are operated in parallel to the same supply and

ground line can be programmed individually as the communication with the sensors is

done via their output pins.

V

SUP

OUT A

OUT B

HAL242x

Sensor A

HAL242x

Sensor B

47 nF

GND

Fig. 5–2: Parallel operation of two HAL 242x

TDK-Micronas GmbH

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DATA SHEET

HAL 2420, HAL 2425

5.3. Ambient Temperature

Due to the internal power dissipation, the temperature on the silicon chip (junction

temperature T_J) is higher than the temperature outside the package (ambient tempera-

ture T_A).

T_J= T_A+ T

At static conditions and continuous operation, the following equation applies:

T = I_SUP V_SUP R_thjx

For typical values, use the typical parameters. For worst case calculation, use the max.

parameters for I_SUPand R_thjx(x is representing the different R_thvalue, like junction to

ambient R_thja), and the max. value for V_SUPfrom the application.

For V_SUP= 5.5 V, R_th= 235 K/W, and I_SUP= 10 mA, the temperature difference

T = 12.93 K.

For all sensors, the junction temperature T_Jis specified. The maximum ambient temper-

ature T_Amaxcan be calculated as:

T_Amax= T_Jmax– T

TDK-Micronas GmbH

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DATA SHEET

HAL 2420, HAL 2425

6. Programming of the Sensor

HAL 242x features two different customer modes. In Application Mode the sensor pro-

vides a ratiometric analog output voltage. In Programming Mode it is possible to

change the register settings of the sensor.

After power-up the sensor is always operating in the Application Mode. It is switched

to the Programming Mode by a pulse on the sensor output pin.

6.1. Programming Interface

In Programming Mode the sensor is addressed by modulating a serial telegram on the

sensors output pin. The sensor answers with a modulation of the output voltage.

A logical “0” is coded as no level change within the bit time. A logical “1” is coded as a

level change of typically 50% of the bit time. After each bit, a level change occurs (see

Fig. 6–1).

The serial telegram is used to transmit the EEPROM content, error codes and digital

values of the angle information from and to the sensor.

t

bittime

or

logical 0

t

bittime

or

logical 1

50%

Fig. 6–1: Definition of logical 0 and 1 bit

A description of the communication protocol and the programming of the sensor is avail-

able in a separate document (Application Note Programming HAL 242x).

TDK-Micronas GmbH

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DATA SHEET

HAL 2420, HAL 2425

Table 6–1: Telegram parameters (All voltages are referenced to GND.)

Symbol Parameter

Limit Values

Unit Test Conditions

Min.

0

Typ.

Max.

V_OUTLVoltage for Output Low OUT

Level during Program-

ming through Sensor



0.2*V_SUP

1.0

V

0

V

for V_SUP= 5 V

Output Pin

V_OUTHVoltage for Output

High Level during Pro-

gramming through

OUT 0.8*V_SUP

4.0



V_SUP

5.0

V

Sensor Output Pin

V_SUP-

V_SUPVoltage for

EEPROM Program-

ming (after PROG and

ERASE)

VSUP 5.7

6.0

6.5

V

Supply voltage

for bidirectional

communication

via output pin.

Program

t_bittime

Biphase Bit Time

Slew rate

OUT 900

1000

2.0

1100

µs

OUT



V/µs

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

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DATA SHEET

HAL 2420, HAL 2425

6.2. Programming Environment and Tools

For the programming of HAL 242x during product development a programming tool

including hardware and software is available on request. It is recommended to use the

Micronas tool kit (TDK-MSP V1.x & LabView^TMProgramming Environment) in order to

ease the product development. The details of programming sequences are also avail-

able at service.micronas.com.

6.3. Programming Information

For reliability in service, it is mandatory to set the LOCK bit to one and the POUT bit to

zero after final adjustment and programming of HAL 242x.

The success of the LOCK process must be checked by reading the status of the LOCK

bit after locking and by a negative communication test after a power on reset.

It is also mandatory to check the acknowledge (first and second) of the sensor or to

read/check the status of the PROG_DIAGNOSIS register after each write and store

sequence to verify if the programming of the sensor was successful. Please check

HAL 242x Programming Guide for further details.

Electrostatic Discharges (ESD) may disturb the programming pulses. Please take pre-

cautions against ESD.

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

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DATA SHEET

HAL 2420, HAL 2425

7. Document History

1. Preliminary Data Sheet: “HAL 242x High-Precision Programmable Linear Hall-Effect Sensor”,

May 3, 2013, PD000211_001EN. First release of the preliminary data sheet.

2. Preliminary Data Sheet: “HAL 242x High-Precision Programmable Linear Hall-Effect Sensor with

Arbitrary Output Characteristics”, July 4 2014, PD000211_002EN. Second release of the prelimi-

nary data sheet.

Major Change: SOIC8 package added

3. Preliminary Data Sheet: “HAL 242x High-Precision Programmable Linear Hall-Effect Sensor with

Arbitrary Output Characteristics”, Sept. 19, 2014 PD000211_003EN. Third release of the prelimi-

nary data sheet.

Major Changes:

– SOIC8 package drawing updated

– Absolute Maximum Ratings – Specification of ESD Protection for SOIC8 package

4. Preliminary Data Sheet: “HAL 242x High-Precision Programmable Linear Hall-Effect Sensor with

Arbitrary Output Characteristics”, Nov. 26, 2014, PD000211_004EN. Fourth release of the prelim-

inary data sheet.

Major Changes:

– SOIC8 package drawing updated

– Position of Sensitive Areas: A4 value changed to 0.48 mm

5. Data Sheet: “HAL 242x High-Precision Programmable Linear Hall-Effect Sensor with Arbitrary

Output Characteristics”, April 15, 2016, DSH000174_001EN. First release of the data sheet.

Major Changes:

–TO92UT package drawings updated

– Ammopack drawings updated

– Assembly and storage information changed

6. Data Sheet: “HAL 2420, HAL 2425 High-Precision Programmable Linear Hall-Effect Sensors with

Arbitrary Output Characteristics”, May. 4, 2020, DSH000174_002EN. Second release of the data

sheet.

Major Changes:

– SOIC package drawing updated

– TO92UT package and tape drawings updated

– Maximum Ratings: T_storageadded

– Characteristics: new value for parameter VOUT

rms

– Magnetic Characteristics: new values for parameters SENS and RANGE_ABS

7. Data Sheet: “HAL 2420, HAL 2425 High-Precision Programmable Linear Hall-Effect Sensors with

Arbitrary Output Characteristics”, Nov. 3, 2020, DSH000174_003EN. Third release of the data

sheet.

Major Changes:

– SOIC8 package drawing updated

– Thermal resistance values for TO92UT package updated

TDK-Micronas GmbH

Hans-Bunte-Strasse 19  D-79108 Freiburg  P.O. Box 840  D-79008 Freiburg, Germany

Tel. +49-761-517-0  Fax +49-761-517-2174  www.micronas.tdk.com

TDK-Micronas GmbH

Nov. 3, 2020; DSH000174_003EN

42


型号：	HAL2425DJ
厂家：	TDK ELECTRONICS
描述：	线性霍尔传感器传感器
文件：	总42页 (文件大小：582K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HAL2425DJ [TDK]

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