MLX91208LDC-CAH-000-RE - Melexis

MLX91208

IMC-Hall® Current Sensor (Triaxis®Technology)

3901091208 Page 1 of 20

MLX91208

Rev.007 June 2018

Features and Benefits

1.

 Triaxis Technology

 Very high sensitivity due to Integrated

Magnetic Concentrator (IMC-Hall®)

 Programmable high speed current sensor IC

 Wideband: DC to 250kHz

 Short response time 3us

 Programmable linear transfer characteristic

 Selectable Analog ratiometric output

 SOIC8 package RoHS compliant

 Lead free component, suitable for lead free

soldering profile 260°C (target), MSL3

 AEC-Q100 Automotive Qualified

Application Examples

2.

 Inverter HEV and EV

 BLDC motor current monitoring

 Smart fuse (over-current detection)

 AC/DC Converters

 DC/AC Converter (inverter)

 DC/DC switched mode power supply

AC/D

Figure 1: Typical application of MLX91208

Description

3.

The MLX91208 is a monolithic sensor IC featuring the

Tria⊗is Hall technology. Conventional planar Hall

technology is only sensitive to the flux density applied

orthogonally to the IC surface. The IMC-Hall current

sensor is sensitive to the flux density applied parallel to the

IC surface. This is obtained through an Integrated Magneto-

Concentrator (IMC-Hall) which is deposited on the CMOS

die (as an additional back-end step). The IMC-Hall

technology is automotive qualified.

The product is a single chip Hall sensor which provides an

output signal proportional to the flux density applied

horizontally and is therefore suitable for current

measurement. It is ideally suited as an open loop current

sensor for PCB or bus bar mounting. It features small size

application design and a simple construction for various

current ranges from few Amperes up to 1000 Amperes.

The transfer characteristic of the MLX91208 is

programmable in terms of offset, gain or temperature

compensation. The linear analog output is designed for

applications where a very fast response is required, such as

inverter applications.

Figure 2: Block diagram

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 2 of 20

MLX91208

Rev.007 June 2018

Ordering Information

4.

Product Temperature Package Option Code Packing Form Sensitivity Range (typ.)

ML91208 L (-40°C to 150°C) DC CAL - 000 TU/RE 100-700mV/mT (250mV/mT)

ML91208 L (-40°C to 150°C) DC CAH - 000 TU/RE 50-300mV/mT (100mV/mT)

ML91208 L (-40°C to 150°C) DC CAV - 000 TU/RE 30-200mV/mT (40mV/mT)

ML91208 L (-40°C to 150°C) DC CAV - 001 TU/RE 30-200mV/mT (60mV/mT)

Table 1: Ordering Information

Legend:

Temperature Code: L: from -40°C to 150°C

Package Code: “DC” for SOIC-8 package

Option Code: CAL : Low field version

CAH : High field version

CAV : Very high field version

Packing Form: “RE” for Reel, “TU” for Tube

Ordering Example: “MLX91208LDC-CAH-000-RE”

Table 2: Legend

Glossary of Terms

5.

Terms Definition

Tesla Units for the magnetic flux density, 1 mT = 10 Gauss

TC Temperature Coefficient in ppm/deg C

NC Not Connected

ADC Analog to Digital Converter

DAC Digital to Analog Converter

LSB Least Significant Bit

MSB Most Significant Bit

DNL Differential Non Linearity

INL Integral Non Linearity

IMC Integrated Magneto Concentrator (IMC)

PTC Programming Through Connector

Table 3: Glossary of terms

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 3 of 20

MLX91208

Rev.007 June 2018

Contents

Features and Benefits

Features and BenefitsFeatures and Benefits

Features and Benefits

................................

................................................................

............................................................

........................................................

............................

1

11

1

1.

1.1.

1.

Application Examples

Application ExamplesApplication Examples

Application Examples

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................................................................

.............................................................

..........................................................

.............................

1

11

1

2.

2.2.

2.

Description

DescriptionDescription

Description

................................

................................................................

............................................

........................

............

1

11

1

3.

3.3.

3.

Ordering Information

Ordering InformationOrdering Information

Ordering Information

................................

................................................................

............................................................

........................................................

............................

2

22

2

4.

4.4.

4.

Glossary of Terms

Glossary of TermsGlossary of Terms

Glossary of Terms

................................

................................................................

..................................

....

..

2

22

2

5.

5.5.

5.

Absolute Maximum Ratings

Absolute Maximum RatingsAbsolute Maximum Ratings

Absolute Maximum Ratings

................................

................................................................

...................................................

......................................

...................

5

55

5

6.

6.6.

6.

Pin Definitions and Descriptions

Pin Definitions and DescriptionsPin Definitions and Descriptions

Pin Definitions and Descriptions

................................

................................................................

............................................

........................

............

5

55

5

7.

7.7.

7.

General Electrical Specifications

General Electrical SpecificationsGeneral Electrical Specifications

General Electrical Specifications

................................

................................................................

............................................

........................

............

6

66

6

8.

8.8.

8.

Magnetic specification

Magnetic specificationMagnetic specification

Magnetic specification

................................

................................................................

...........................................................

......................................................

...........................

7

77

7

9.

9.9.

9.

Low Field Version 10mT (marking xxL) .............................................................................................. 7

9.1.

High Field Version 25mT (marking xxH) ............................................................................................. 7

9.2.

Very High Field Version 60mT (marking xxV) .................................................................................... 8

9.3.

Analog output specification

Analog output specificationAnalog output specification

Analog output specification

................................

................................................................

.................................................

..................................

.................

8

88

8

10.

10.10.

10.

Timing specification .......................................................................................................................... 8

10.1.

Accuracy specification ...................................................................................................................... 9

10.2.

Remarks to the achievable accuracy ............................................................................................... 9

10.3.

Programmable items

Programmable itemsProgrammable items

Programmable items

................................

................................................................

.........................................................

..................................................

.........................

10

1010

10

11.

11.11.

11.

Parameter table .............................................................................................................................. 10

11.1.

Sensitivity programming (RG, FG) .................................................................................................. 10

11.2.

Offset / output quiescent voltage programming (VOQ) ............................................................... 10

11.3.

Output ratiometry (ENRATIO) ........................................................................................................ 10

11.4.

Sensitivity temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT) ..................... 11

11.5.

Offset temperature drift programming (OFFDR2C, OFFDR2H) .................................................... 11

11.6.

Noise filter (NOISEFILT) .................................................................................................................. 11

11.7.

Identification code (ID) ................................................................................................................... 11

11.8.

Self

SelfSelf

Self-

--

-diagnostic

diagnosticdiagnostic

diagnostic

................................

................................................................

...................................

......

...

12

1212

12

12.

12.12.

12.

Application information

Application informationApplication information

Application information

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................................................................

.....................................................

..........................................

.....................

12

1212

12

13.

13.13.

13.

Low current measurement ±2-10A................................................................................................ 12

13.1.

Medium current measurement up to ±50A .................................................................................. 13

13.2.

High current measurement up to ±1000A .................................................................................... 13

13.3.

Recommended Application Diagrams

Recommended Application DiagramsRecommended Application Diagrams

Recommended Application Diagrams

................................

................................................................

................................

14

1414

14

14.

14.14.

14.

Resistor and capacitor values......................................................................................................... 14

14.1.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 4 of 20

MLX91208

Rev.007 June 2018

Pull-up/down resistor for diagnostic high/low ............................................................................. 14

14.2.

Typical performance

Typical performanceTypical performance

Typical performance

................................

................................................................

..........................................................

....................................................

..........................

15

1515

15

15.

15.15.

15.

Standard information regarding manufacturability of Melexis products w

Standard information regarding manufacturability of Melexis products wStandard information regarding manufacturability of Melexis products w

Standard information regarding manufacturability of Melexis products with different soldering

ith different soldering ith different soldering

ith different soldering

16.

16.16.

16.

processes

processesprocesses

processes

................................

................................................................

............................................

........................

............

16

1616

16

ESD Precautions

ESD PrecautionsESD Precautions

ESD Precautions

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................................................................

.................................

..

.

16

1616

16

17.

17.17.

17.

Package information

Package informationPackage information

Package information

................................

................................................................

..........................................................

....................................................

..........................

17

1717

17

18.

18.18.

18.

SOIC-8 Package Dimensions ........................................................................................................... 17

18.1.

SOIC-8 Pinout and Marking ............................................................................................................ 17

18.2.

SOIC-8 Hall plate position ............................................................................................................... 17

18.3.

SOIC-8 IMC Position and magnetic sensitive direction ................................................................. 18

18.4.

Disclaimer

DisclaimerDisclaimer

Disclaimer

................................

................................................................

..........................................

....................

..........

19

1919

19

19.

19.19.

19.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 5 of 20

MLX91208

Rev.007 June 2018

Absolute Maximum Ratings

6.

Parameters Symbol Value Units

Positive Supply Voltage

(overvoltage) Vdd +10 V

Reverse Supply Voltage Protection -0.3 V

Positive Output Voltage +10 V

Output Current Iout ±70 mA

Reverse Output Voltage -0.3 V

Reverse Output Current -50 mA

Package Thermal Resistance Rth 105 °C/W

Operating Ambient Temperature

Range TA -40 to 150 °C

Storage Temperature Range TS -55 to 165 °C

Magnetic Flux Density infinite T

Table 4: Absolute maximum ratings

Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum

rated conditions for extended periods may affect device reliability.

Pin Definitions and Descriptions

7.

Pin № Name Type Function

5 VDD Supply Supply Voltage

3 VSS Ground Supply Voltage

1 VDEC Digital Digital supply voltage

4 TEST/MUST Digital Test and Factory calibration

6 OUT Analog Current sensor output

Table 5: PIN definitions and descriptions

It is recommended to connect the unused pins to the Ground for optimal EMC results.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 6 of 20

MLX91208

Rev.007 June 2018

General Electrical Specifications

8.

Operating Parameters: TA = -40 to 125deg.C, Vdd = 4.5V to 5.5V, Iout = -2mA to +2 mA, recommended

application diagram in section 14, unless otherwise specified. All mentioned component values can have a

±20% tolerance.

Parameter Symbol Test Conditions Min Typ. Max

Units

Nominal Supply Voltage Vdd 4.5 5 5.5 V

Supply Current Idd W/o output load

in application mode

T

A

= -40 to 150

o

C

7

12

14

mA

DC load Current Iout Rout in range [6kΩ, 100kΩ] -2 2 mA

Maximum Output Current

(driving capability)

Imax Inside this range, output voltage

reaches 3%VDD and 97%VDD -2 2 mA

Output Resistance Vout = 50% Vdd, R

L

= 5kΩ 1 5 Ω

Output Capacitive Load C

load

Capacitive load range for the

stability of the output amplifier.

Output amplifier optimized for the

typical capacitive load.

1 2 10 nF

Output resisitive load R

load

Output resistive load range for the

stability of the output amplifier 6 kΩ

Output Short Circuit Current I

short

Output shorted to Vdd- Permanent 35 180 mA

Output shorted to Vss Permanent 35 180 mA

Leakage current I

leak

High impedance mode

(1)

T=150°C 0.5 1.5 20 uA

Output Voltage Swing (Linear

Range)

V

out_pd

pull down ≥ 10 kΩ 10 90 %Vdd

High-impedance mode levels

(1)

V

out_HiZ_pd

pull-down R

L

≤ 25 kΩ, T≤125°C 5 %Vdd

Under-voltage detection

(2)

V

dd_uvd

Low to high voltage 3 3.3 4 V

V

dd_uvh

Hysteresis 0.25

0.3 0.4 V

Over-voltage detection

(2)

V

dd_ovd2

Low to High voltage 6.7 7.6 V

V

dd_ovh2

Hysteresis 0.05

0.7 V

Ratiometry enable detection

(2)

V

ratio_d

Low to High Voltage 4 4.45 V

V

ratio_h

Hysteresis 0.05

0.5 V

1

Refer to chapter Self-diagnostic, table 12

2

See graph below the table

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 7 of 20

MLX91208

Rev.007 June 2018

Table 6: General electrical parameter

(2) According to the figure below:

Magnetic specification

9.

Low Field Version 10mT

Low Field Version 10mTLow Field Version 10mT

Low Field Version 10mT

(

((

(marking xxL)

marking xxL)marking xxL)

marking xxL)

9.1.

Operating Parameters TA = -40 to 125deg.C, Vdd = 4.5 V to 5.5 V, unless otherwise specified.

Parameter Symbol Test Conditions Min Typ Max Units

Nominal Field Range Bnom -7.5 +7.5 mT

Operational Field Range

(3)

Bop -10 +10 mT

Linearity Error NL B in range Bop

Vout in [10%VDD, 90%VDD -0.7 +0.7 %FS

Hysteresis, remanent Field Br B = Bop -10 +10 uT

Programmable Sensitivity S 100 250 700 mV/mT

Sensitivity programming Resolution Sres 0.1 %

Table 7: Magnetic specification for 10mT version (low-field version)

High Field Version 25mT

High Field Version 25mTHigh Field Version 25mT

High Field Version 25mT

(marking xxH)

(marking xxH)(marking xxH)

(marking xxH)

9.2.

Parameter Symbol

Test Conditions Min Typ Max Units

Nominal Field Range

Bnom -20 +20 mT

Operational Field Range

(3)

Bop -25 +25 mT

Linearity Error NL B in range Bop

Vout in [10%VDD, 90%VDD

-0.7 +0.7 %FS

Hysteresis, remanent Field Br B = Bop -25 +25 uT

Programmable Sensitivity S 50 100 300 mV/mT

Sensitivity programming Resolution Sres 0.1 %

Table 8: Magnetic specification 25mT version (high-field version)

3

Outside Bop, the IMC progressively enters saturation, yielding to an increase of the linearity error.

Vout

Detected

Voltage

Vdd

Hysteresis

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 8 of 20

MLX91208

Rev.007 June 2018

Very High Field Version 60mT (marking xxV)

Very High Field Version 60mT (marking xxV)Very High Field Version 60mT (marking xxV)

Very High Field Version 60mT (marking xxV)

9.3.

Parameter Symbol

Test Conditions Min Typ Max Units

Nominal Field Range Bnom -50 +50 mT

Operational Field Range

(3)

Bop -60 +60 mT

Linearity Error NL B in range Bop

Vout in [10%VDD, 90%VDD]

-0.7 +0.7 %FS

Hysteresis, remanent Field Br B = Bop -50 +50 uT

Programmable Sensitivity S CAV-000

CAV-001

30

40

60

200

mV/mT

Sensitivity programming Resolution Sres 0.1 %

Table 9: Magnetic specification 60mT version (Very high-field version)

Note: The noise filter is disabled by default for all MLX91208 versions.

Analog output specification

10.

Timing specification

Timing specificationTiming specification

Timing specification

10.1.

Operating Parameters T

A

= -40 to 125deg.C, Vdd = 4.5 V to 5.5 V (unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Units

Refresh rate Trr 0.8 1 2 us

Step Response Time

Tresp

Delay between the input

signal reaching 90% and the

output signal reaching 90%,

(2V step at the output, input

rise time = 1µs)

-Noise filter OFF

-Noise filter ON

3

5

4

6

μs

Bandwidth BW -Noise filter OFF

-Noise filter ON

200

120

250

150

300

180

kHz

Power on Delay

TPOD

Vout =100% of FS

Pull-down resistor

≤100kOhm

During the Power-on delay,

the output will remain within

the 10% fault band at all

time.

1 ms

Ratiometry Cut-off Frequency Fratio 250 Hz

Table 10: Timing specification high speed analog output

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 9 of 20

MLX91208

Rev.007 June 2018

1 µs

in, Vout

time

90%100 %

Response

time

Figure 3: Response time definition

Accuracy specification

Accuracy specificationAccuracy specification

Accuracy specification

10.2.

Operating Parameters T

A

= -40 to 125deg.C, Vdd = 4.5 V to 5.5 V (unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Units

Thermal Offset Drift Δ

T

Voq

Offset drift referred to 25°C

S=40mV/mT (xxV version)

S=100mV/mT (xxH version)

S=250mV/mT (xxL version)

Vdd=5V, TC=0±150 ppm/°C

Voq=50±0.2 %Vdd

-10 +10 mV

Thermal Offset Drift Resolution Δ

T

VoqRes

0.075 mV/°C

Thermal Sensitivity Drift TC -1.5 0 +1.5 % of S

Thermal Sensitivity Drift

Resolution TCres 40 ppm/°C

RMS Output noise N

rms

S=40mV/mT (xxV version)

S=100mV/mT (xxH version)

S=250mV/mT (xxL version)

-Noise filter OFF

-Noise filter ON

0.2

0.12

%Vdd

Ratiometry Error Offset ΔVoq Voq = 50%Vdd

ΔVdd = 10%Vdd -0.4 +0.4 % of

Voq

Ratiometry Error Sensitivity ΔS ΔVdd = 10%Vdd -0.4 +0.4 % of S

Table 11: Accuracy-Specific Parameters

Remarks to the achievable accuracy

Remarks to the achievable accuracyRemarks to the achievable accuracy

Remarks to the achievable accuracy

10.3.

The achievable target accuracy is dependent on user’s end-of-line calibration. The resolution for the offset

and offset drift calibration is better than 0.1%Vdd. Trimming capability is higher than the measurement

accuracy. End-user calibration can increase the accuracy of the system.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 10 of 20

MLX91208

Rev.007 June 2018

Programmable items

11.

Parameter table

Parameter tableParameter table

Parameter table

11.1.

Parameter Bits Factory Setting Comment

VOQ[11:0] 12 trimmed Quiescent output level (0 Gauss) adjustment

RG[2:0] 3 trimmed Rough gain adjustment

FG[9:0] 10 trimmed Fine gain adjustment

ENRATIO 1 1 Ratiometry enablement

TC1[7:0] 8 trimmed Adjustment of the first order temperature compensation of the

magnetic sensitivity

TC2HOT[4:0] 5 trimmed Adjustment of the extra temperature compensation of the magnetic

sensitivity at high temperature

TC2COLD[4:0] 5 trimmed Adjustment of the extra temperature compensation of the magnetic

sensitivity at low temperature

OFFDR2C[5:0] 6 trimmed Adjustment of the offset drift at low temperature after the VGA

OFFDR2H[5:0] 6 trimmed Adjustment of the offset drift at high temperature after the VGA

NOISEFILT 1 0 Noise filter enablement

PLATEPOL 1 0 0: default polarity as described in section 18.4

1: opposite polarity

ID[47:0] 48 Programmed Melexis traceability ID

Table 12: Customer programmable items

Sensitivity

SensitivitySensitivity

Sensitivity

programming (RG, FG)

programming (RG, FG)programming (RG, FG)

programming (RG, FG)

11.2.

The sensitivity can be programmed from 50 to 300mV/mT (high field version) or 100 to 700mV/mT (low field

version), with the ROUGHGAIN (3 bits) and FINEGAIN (10 bits) parameters.

Offset / o

Offset / oOffset / o

Offset / output

utpututput

utput

quiescent

quiescent quiescent

quiescent voltage programming

voltage programmingvoltage programming

voltage programming

(

((

(VOQ

VOQVOQ

VOQ)

))

)

11.3.

The offset is programmable with 12 bits in 1.5 mV steps over the full output range. This corresponds to a

calibration resolution of 0.03 %VDD.

The typical step size would be 5V/4096 = 1.22 mV, but the actual step size can differ from the nominal value

because of internal gain tolerance. A maximum step size of 1.5 mV is guaranteed.

Note: for optimal performance over temperature, the VOQ should be programmed in the range from 2 to

3V.

Output ratiometry (ENRATIO)

Output ratiometry (ENRATIO)Output ratiometry (ENRATIO)

Output ratiometry (ENRATIO)

11.4.

The ratiometry of the output versus the supply can be disabled by setting this bit to 0.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 11 of 20

MLX91208

Rev.007 June 2018

Note: for optimal performance over temperature, the ratiometry setting should not be changed on

customer side. By default, this setting is enabled during final test calibration.

Sensitivity

SensitivitySensitivity

Sensitivity

temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT)

temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT)temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT)

temperature drift programming (TC1ST, TC2ND_COLD, TC2ND_HOT)

11.5.

First order sensitivity temperature drift can be trimmed with TC1. The programming resolution is 40ppm/K.

Second order sensitivity temperature drift can be trimmed with TC2COLD and TC2HOT. The programming

resolution is 2ppm/K

2

for TC2COLD and 0.6ppm/K

2

for TC2HOT.The second order can also be seen as third

order correction since cold and hot sides are independently adjusted.

Note: for optimal performance over temperature, the first order sensitivity drift compensation (TC1ST)

should not exceed ±250ppm/K.

Offset

Offset Offset

Offset temperature

temperaturetemperature

temperature

drift programming (OFFDR

drift programming (OFFDRdrift programming (OFFDR

drift programming (OFFDR2

22

2C, OFFDR

C, OFFDRC, OFFDR

C, OFFDR2

22

2H)

H)H)

H)

11.6.

Offset temperature drift caused by the output amplifier can be compensated with these two parameters.

This first order correction is done independently for temperatures over and below 25°C.

Note: Two additional parameters (OFFDR1C, OFFDR1H) are calibrated by Melexis to compensate for the

offset temperature drift caused by the Hall element (before the variable gain amplifier). These parameters

should not be adjusted on customer-side.

Noise

Noise Noise

Noise filter

filterfilter

filter

(NOISEFILT)

(NOISEFILT)(NOISEFILT)

(NOISEFILT)

11.7.

Setting this bit to 1 enables the noise filter, reducing noise and increasing response time.

Identification

IdentificationIdentification

Identification

code (ID)

code (ID) code (ID)

code (ID)

11.8.

48 bits programmed identification code.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 12 of 20

MLX91208

Rev.007 June 2018

Self-diagnostic

12.

The MLX91208 provides self-diagnostic features to detect internal memory errors and over- / under-voltage.

Those features increase the robustness of the IC functionality, as they prevent the IC from providing

erroneous output signal in case of internal or external failure modes.

Error Action Effect on

Outputs Remarks

Calibration Data CRC Error (at power up

and in normal working mode) Fault mode

High

Impedance

mode

Pull down resistive load, Diagnostic

Low

Power On delay

High

Impedance

mode

5ms max in high impedance

followed by settling

Undervoltage Mode IC is reset

High

Impedance

mode

300mV Hysteresis (typical)

Overvoltage detection IC is reset

High

Impedance

mode

100mV Hysteresis (typical)

Table 13: Self diagnostic

Application information

13.

Please refer to our current sensor reference design guide for more application information:

http://melexis.com/Assets/Current-Sensors-Reference-Designs-6187.aspx

Low current measurement

Low current measurement Low current measurement

Low current measurement ±2

±2±2

±2-

--

-10A

10A10A

10A

13.1.

Low currents can be measured by either using a multi-turn/multi-layer PCB where the current is

allowed to flow several times under the sensor, or by adding a closed ferromagnetic shield around the

current trace with a small air gap to concentrate the magnetic flux above the sensor.

Figure 4: Low current applications with either multi-trace/multi-layer PCB (left) or closed shield (right).

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 13 of 20

MLX91208

Rev.007 June 2018

Medium

Medium Medium

Medium current measurement up to

current measurement up to current measurement up to

current measurement up to ±50

±50±50

±50A

AA

A

13.2.

For medium currents, a single PCB trace can be used. The

sizing of the PCB trace should take into account the

current handling capability and the total power

dissipation. The PCB trace should be thick and wide

enough to handle the RMS current continuously.

A simple “U-shaped” ferromagnetic shield is often

required to protect the sensor from cross-talk or external

stray fields, if they cannot be cancelled-out by other

means (peak-peak detection, etc.).

Figure 5: Medium current application on PCB

High current measurement up to ±1000A

High current measurement up to ±1000AHigh current measurement up to ±1000A

High current measurement up to ±1000A

13.3.

For high currents flowing in a bus bar, MLX91208 is

typically assembled on a PCB lying immediately above the

current conductor.

A ferromagnetic shield is usually added to protect the

sensor from external fields and ensure good

homogeneity of the magnetic flux, for optimal robustness

against vibrations and mechanical tolerances.

Figure 6: High current application on bus bar

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 14 of 20

MLX91208

Rev.007 June 2018

Recommended Application Diagrams

14.

Resistor and capacitor values

Resistor and capacitor valuesResistor and capacitor values

Resistor and capacitor values

14.1.

Part Description Value Unit

C1 Supply capacitor, EMI, ESD 100 nF

C2 Decoupling, EMI, ESD 2-10

(4)

nF

C3 Decoupling, EMI, ESD 47 nF

R1 Pull down resistor 6-100 kΩ

Table 14: Resistor and capacitor values

Pull

PullPull

Pull-

--

-down

down down

down resistor

resistorresistor

resistor

for diagnostic

for diagnostic for diagnostic

for diagnostic low

lowlow

low

14.2.

5

OUT

VDD

VSS

TEST

6

7

8

4

3

2

1

MLX91208

Supply voltage

Analog Output

GND

C2 R1C1

C3

VDEC

Figure 7: Diagnostic low/ Pull-down resistors

4

10nF is recommended for better EMC and ESD performance

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 15 of 20

MLX91208

Rev.007 June 2018

Typical performance

15.

Figure 9: Thermal sensitivity drift.

Figure 10: Thermal offset drift.

Figure 11: Linearity error for all versions.

Figure 12: Response time with noise filter OFF.

Figure 13: Response time with noise filter ON.

shunt

MLX91208

shunt

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 16 of 20

MLX91208

Rev.007 June 2018

Standard information regarding manufacturability of Melexis products

16.

with different soldering processes

Melexis devices are qualified using state-of-the-art practices in accordance with automotive and

environmental requirements.

Through qualifications, various soldering techniques are considered; please refer to “Soldering

recommendations for Melexis products” for more information:

(

http://www.melexis.com/Asset/Soldering_Application_Note_and_Recommendations_DownloadLink_5446.

aspx).

For components normally soldered using Surface Mounted Device techniques (eg: Reflow process), Melexis

has defined and qualified Moisture Sensitivity Level and Peak Temperature in accordance with the Jedec J-

STD-020 standard. Delivered material is conditioned accordingly. Moisture Sensitivity Level and Peak

Temperature information can be found on the label identifying the material.

In case you intend to use a reflow soldering process for through hole devices (Melexis’ package codes: SA,

UA, VA, VK, VM), please contact Melexis to verify your soldering process compatibility.

The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of

adhesive strength between device and board.

Based on Melexis commitment to environmental responsibility, Europe legislations (Direction on the

Restriction of the Use of Certain Hazardous substances, RoHS) and customer requests, Melexis has deployed

Pb free leadfinish (typically Matte Tin) on all ASSP products.

For through hole devices (Melexis’ package codes: SA, UA, VA, VK, VM) Trim&Form, please refer to “Trim &

Form recommendations for Melexis products” for more information:

(

http://www.melexis.com/Assets/Trim_and_form_recommendations_DownloadLink_5565.aspx

)

ESD Precautions

17.

Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).

Always observe Electro Static Discharge control procedures whenever handling semiconductor products.

ESD HBM robustness is 2kV on external pins according to AEC-Q100-002 REV-D.

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 17 of 20

MLX91208

Rev.007 June 2018

Package information

18.

SOIC

SOICSOIC

SOIC-

--

-8

88

8

Package Dimensions

Package DimensionsPackage Dimensions

Package Dimensions

18.1.

0.19

0.25

NOTES:

All dimensions are in millimeters (anlges in degrees).

* Dimension does not include mold flash, protrusions or

gate burrs (shall not exceed 0.15 per side).

** Dimension does not include interleads flash or protrusion

(shall not exceed 0.25 per side).

** * Dim ension does not include dambar pro trusion .

Allowable dambar protrusion shall be 0.08 mm total in

excess of the dimension at maximum material condition.

Dambar cannot be located on the lower radius of the foot.

5.84

6.20**

1.27 TYP

4.80

4.98*

1.55

1.73

0.127

0.250

1.40

1.55

0.35

0.49***

3.81

3.99**

0°

8°

0.41

0.89

Figure 14: SOIC-8 Package dimensions

SOIC

SOICSOIC

SOIC-

--

-8 Pinout

8 Pinout 8 Pinout

8 Pinout and Marking

and Markingand Marking

and Marking

18.2.

Figure 15: SOIC-8 Pinout and marking (Very High Field, High Field and Low Field version)

SOIC

SOICSOIC

SOIC-

--

-8 Hall plate position

8 Hall plate position8 Hall plate position

8 Hall plate position

18.3.

Very high field

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 18 of 20

MLX91208

Rev.007 June 2018

Figure 16: SOIC-8 Hall Plate positioning

SOIC

SOICSOIC

SOIC-

--

-8 IMC P

8 IMC P8 IMC P

8 IMC Position and magnetic sensitive direction

osition and magnetic sensitive directionosition and magnetic sensitive direction

osition and magnetic sensitive direction

18.4.

B extern B extern

Figure 17: IMC position and geometry for low-field version

B extern B extern

Figure 18: IMC position and geometry high-field version

B extern B extern

Figure 19: IMC position and geometry very high-field version

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 19 of 20

MLX91208

Rev.007 June 2018

Disclaimer

19.

Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of

Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth

herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to

change specifications and prices at any time and without notice. Therefore, prior to designing this product into a

system, it is necessary to check with Melexis for current information. This product is intended for use in normal

commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or

high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not

recommended without additional processing by Melexis for each application.

The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to

recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of

profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in

connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or

liability to recipient or any third party shall arise or flow out of Melexis’ rendering of technical or other services.

For the latest version of this document, go to our website at

www.melexis.com

Or for additional information contact Melexis Direct:

Europe, Africa, Asia: America:

Phone: +32 1367 0495 Phone: +1 603 223 2362

E-mail: sales_europe@melexis.com E-mail: sales_usa@melexis.com

ISO/TS 16949 and ISO14001 Certified

MLX91208

IMC-Hall

®

Current Sensor (Triaxis

®

Technology)

3901091208 Page 20 of 20

MLX91208

Rev.007 June 2018

HISTORY5

5

Dummy footnote to get last page number

Rev. Nb. Date Name Changes from Previous version

001

07-Jun-2014

Creation

002

10-Jul-2014

Incorrect MSL level, 1 => 3

004

22-Dec-2016

Migration to New template

005 13-Jul-2017

Formatting ® using existing from previous templates

Formatting table and figure caption

Added revision history

Formatting 18.4. SOIC-8 IMC Position and magnetic sensitive changed

figure 15 there is a rectangle text that is badly placed

Using body formatting for non-header, caption

Corrected references “

Self-diagnostic, table 12

” instead of 13

“application diagram in section 14” instead of 16

006 19-Jul-17

Bandwidth in chapter 1. Feature and Benefits modified to 250kHz

Read proof and typo corrections

Modified Chapter 11. Programmable Items – Table 12 : added

column “Factory Setting”, Removed parameter CRC[15:0] (not

programmable), added parameter PlatePol

007 9-Mar-18 Removed Pull-Down option for Diagnostic Low

007.01 3-Apr-18 Updated feature and benefits : “AEC-Q100 automotive qualified”