2. Ordering information...Datasheet 390109225601, September, 2018 Page 6 of 14 Rev 001 10. Operating Characteristics 10.1. Definition of Vertical Magnetic Field The OUTA signal switches

MLX92256LSE

Hall Effect IC for Pulse Encoders Datasheet

390109225601, September, 2018 Page 1 of 14 Rev 001

1. Features

Supply Voltage: 3.8 to 24V

Operation Temperature: 40 to 150ºC

Sensitivity (Vertical): ±2.0mT(Typ.), ±4.0mT(Max.)

Sensitivity (Horizontal): ±2.0mT(Typ.), ±4.0mT(Max.)

Two Variants: Speed & Speed , Pulse & Direction

Package: 6-pin SOP Type (RoHS Compliant, Halogen free)

2. Ordering information Product Code Comment

MLX92256LSE-AAA-000-RE 4-wire sensor with Pulse & Direction output

MLX92256LSE-ABA-000-RE 4-wire sensor with Speed & Speed output

Legend: Temperature Code: L (-40°C to 150°C) Package Code: SE = SOP 6 pin Option Code: ABA-000 = 4-wire Speed Speed with Vertical and Horizontal field

AAA-000 = 4-wire Pulse & Direction with Vertical and Horizontal field Packing Form: RE = Reel Ordering example: MLX92256LSE-ABA-000-RE

3. General description

The MLX92256LSE-AAA-000 is a Hall effect latch which detects both “vertical magnetic field” and “horizontal magnetic field” (perpendicular and parallel to the marked side of the package) at the same time. The pulse output F and the direction output D are switched according to the vertical and horizontal magnetic fields applied to the device. The direction is calculated internally and output D is switched on a rising or falling edge of output F. The MLX92256LSE-AAA-000 is for use in the incremental pulse encoders or rotational detection systems.

The MLX92256LSE-ABA-000 is a Hall effect latch which detects both “vertical” and “horizontal” (perpendicular and parallel to the marked side of the package) magnetic fields at the same time. The OUTA and OUTB outputs are switched according to the vertical and horizontal magnetic fields applied to the device. The MLX92256LSE-ABA-000 is for use in the incremental pulse encoders or rotational detection systems.

MLX92256LSE



4. Table of Contents

1. Features ................................................................................................................................. 1

2. Ordering information .............................................................................................................. 1

3. General description ................................................................................................................ 1

4. Table of Contents .................................................................................................................... 2

5. Block Diagram and Functions .................................................................................................. 3

5.1. Block Diagram ............................................................................................................................ 3

6. Absolute Maximum Ratings .................................................................................................... 4

7. Recommended Operating Conditions ...................................................................................... 5

8. Electrical Characteristics ......................................................................................................... 5

9. Magnetic Characteristics ......................................................................................................... 5

10. Operating Characteristics ...................................................................................................... 6

10.1. Definition of Vertical Magnetic Field ....................................................................................... 6

10.2. Definition of Horizontal Magnetic Field ................................................................................... 6

10.3. Behaviour MLX92256LSE-AAA-000 .......................................................................................... 7 Behaviors of Internal and Output Signals when a Rotating Magnetic Field Is Applied ............................................... 7

10.4. Behaviour MLX92256LSE-ABA-000 .......................................................................................... 8 Behaviors of OUTA and OUTB Signals when a Rotating Magnetic Field Is Applied ..................................................... 8

11. Pin Configurations and Functions .......................................................................................... 9

11.1. MLX92256LSE-AAA-000 ........................................................................................................... 9

11.1.1. Marking .......................................................................................................................... 9

11.1.2. Pin Configurations .......................................................................................................... 9

11.2. MLX92256LSE-ABA-00 ........................................................................................................... 10

11.2.1. Marking ........................................................................................................................ 10

11.2.2. Pin Configurations ........................................................................................................ 10

11.3. Land Pattern ........................................................................................................................... 11

11.4. Dimensions ............................................................................................................................ 11

12. Recommended External Circuit ........................................................................................... 12

13. Typical Characteristics Data (for reference).......................................................................... 13

14. Disclaimer .......................................................................................................................... 14

MLX92256LSE



5. Block Diagram and Functions

5.1. Block Diagram

amplifier

amplifier

Open-Drain

Output

ReferenceTiming

Logic

Regulator

Open-Drain

Output

OUT A

OUT B

Vbat

GND

Figure 1. MLX92256LSE-ABA-000 Block Diagram

MLX92256LSE



6. Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Description Supply Voltage VDD 0.3 32 V VSS = 0V

Output Voltage VOUT 0.3 32 V OUTA pin, OUTB pin VSS = 0V

Output Current ISINK 20 mA OUTA pin, OUTB pin

Storage Temperature TSTG 55 150 ºC

Table 1. Absolute maximum ratings

Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes.

MLX92256LSE



7. Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Supply Voltage VDD 3.8 12 24 V

Output Current ISINK 15 mA

Operation Temperature Ta 40 150 ºC

Table 2. Recommended operating conditions

8. Electrical Characteristics

Parameter Symbol Min. Typ. Max. Unit Description Current Consumption IDD 1.7 3.5 6.2 mA VDD = 3.8 to 24V

Current Consumption (2) IDD2 1.7 3.5 6.0 mA VDD = 3.8 to 18V

Output Saturation Voltage VSAT 0.4 V OUTPUT pins, ISINK = 15mA

Output Leak Current ILEAK 10 µA OUTPUT pins = VDD

Output Refresh Period Tp 5.0 8.3 16.7 µs

Table 3. Electrical characteristics at VDD = 3.8 to 24V, Ta = 40 to 150ºC

9. Magnetic Characteristics

Parameter Symbol Min. Typ. Max. Unit Description Operate point of vertical magnetic field BopV 0.5 2.0 4.0 mT (* 2)

Release point of vertical magnetic field BrpV 4.0 2.0 0.5 mT (* 2)

Operate point of horizontal magnetic field BopH 0.5 2.0 4.0 mT (* 3)

Release point of horizontal magnetic field BrpH 4.0 2.0 0.5 mT (* 3)

Hysteresis BhV, BhH 2.0 4.0 6.4 mT (* 2, * 3, * 4)

Magnetic offset BoffV, BoffH 1.1 0.0 +1.1 mT (* 2, * 3, * 5)

Table 4. Magnetic characteristics at VDD = 3.8 to 24V, Ta = 40 to 150ºC * 2. Horizontal magnetic flux density is zero. * 3. Vertical magnetic flux density is zero * 4. Bh = Bop – Brp * 5. Boff = (Bop + Brp) / 2

MLX92256LSE



10. Operating Characteristics

10.1. Definition of Vertical Magnetic Field

The OUTA signal switches ‘L’ (ON) when the magnetic field perpendicular to the marking side of the package exceeds BopV. When the magnetic field is reduced below BrpV, the OUTA goes ‘H’ (OFF). Otherwise; that is, in case of the magnetic field strength is greater than BrpV and smaller than BopV; OUTA keeps its status.

Figure 2. Switching behavior of OUTA signal when vertical magnetic field is applied

10.2. Definition of Horizontal Magnetic Field The OUTB signal switches ‘L’ (ON) when the magnetic field parallel to the marking side of the package exceeds BopH. When the magnetic field is reduced below BrpH, the OUTB goes ‘H’ (OFF). Otherwise; that is, in case of the magnetic field strength is greater than BrpH and smaller than BopH; OUTB keeps its status.

Figure 3. Switching behavior of the OUTB signal when horizontal magnetic field is applied

Flux density

Output level

BOPBRP0mT

VO

UT s

witch

es t

o L

ow

VO

UT s

witch

es t

o H

igh

VOUT = VPULL-UP

VOUT = VDSON

VOUT = VOL

Flux density

Output level

BOPBRP0mT

VO

UT s

witch

es t

o L

ow

VO

UT s

witch

es t

o H

igh

VOUT = VPULL-UP

VOUT = VDSON

VOUT = VOL

MLX92256LSE



10.3. Behaviour MLX92256LSE-AAA-000 Behaviors of Internal and Output Signals when a Rotating Magnetic Field Is Applied The F signal (pulse) is correspond to the result of EX-OR operation of internal signal A and B. The D signal (direction) is calculated by status of internal signal A and B.

Figure 4. Behaviors of Internal Signal A, B and Output Signal F, D with Rotating Magnetic Field

Vertical M. F. D.

Horizonatal M. F. D.

Supply voltage VDD

Internal signal A(Vertical)

Internal signal B(Horizontal)

F (Pulse)

D (Direction)

0

0

0

0

0

0

0

BopV

BrpV

BopH

BrpH

Direction changed Direction changed

F, D signal is determined.

Undefined ("H" or "L")

t

t

t

t

t

t

t

MLX92256LSE



10.4. Behaviour MLX92256LSE-ABA-000 Behaviors of OUTA and OUTB Signals when a Rotating Magnetic Field Is Applied

Figure 5. Behaviors of OUTA and OUTB Signals with Rotating Magnetic Field

* M.F.D. = Magnetic Flux Density * The indeterminate output state appears only in the powering up of this device.

Vertical M. F. D.

Horizontal M. F. D.

Supply Voltage VDD

OUTA Signal(Vertical)

OUTB Signal(Horizontal)

0

0

0

0

0

BopV

BrpV

BopH

BrpH

Direction chenged Direction chenged

Undefined ("H" or "L")

t

t

t

t

t

MLX92256LSE



11. Pin Configurations and Functions

11.1. MLX92256LSE-AAA-000 11.1.1. Marking

11.1.2. Pin Configurations

Pin No. Pin Name I/O Function Description 1 F O Output pin (relating to the pulse output) Open Drain

2 TAB - (TAB pin) (*1)

3 D O Output pin (relating to the direction output) Open Drain

4 VDD - Power supply pin


6 VSS - Ground pin

Table 5 Description of pin name and function AAA version * 1. The TAB pin should be connected to the VSS pin.

Line Marking

Marking is performed by laser Product name 92256 Date code AYWWL Y: Manufactured Year WW: Manufactured Week L: Lot Number

6 5 4

1 2 3

AYWWL92256

MLX92256LSE



11.2. MLX92256LSE-ABA-00 11.2.1. Marking

Figure 6. Pin Layout

11.2.2. Pin Configurations

Pin No. Pin Name I/O Function Description 1 OUTB O Output pin (relating to the horizontal magnetic field) Open Drain


3 OUTA O Output pin (relating to the vertical magnetic field) Open Drain

4 VDD - Power Supply pin


6 VSS - Ground pin (GND)

Table 6. Description of pin name and function ABA version * 1. The TAB pin should be connected to the VSS pin.

MLX92256LSE



11.3. Land Pattern

Unit: mm

Figure 7. Land Pattern

11.4. Dimensions

Figure 8. Outline Dimensions

* The center of the sensitive are is located within a φ0.3mm circle. * Lead flatness: The standoff differences among terminals are Max. 0.1mm. * The sensor part is located at 0.71mm (Typ.) deep from the marked surface.

MLX92256LSE



12. Recommended External Circuit

Figure 9. Recommended External Circuit

MLX92256

VOUT

VOUT

OUT

OUT

VDD

GND

VDD

C1

100nF

RPU1

10k

RPU2

10kNote: 1. Pin 2 and Pin 5 should be connected to ground for proper operation

MLX92256LSE



13. Typical Characteristics Data (for reference)

Figure 10. Temperature Dependence of Bop, Brp

Figure 11. Temperature Dependence of Current Consumptio

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopV

, B

rpV

[m

T]

Ambient temperature Ta [℃]

BopV, BrpV vs. Ta (VDD= 3.8V)

BopV

BrpV

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopH

, B

rpH

[m

T]


BopH, BrpH vs. Ta (VDD= 3.8V)

BopH

BrpH

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopV

, B

rpV

[m

T]


BopV, BrpV vs. Ta (VDD= 12V)

BopV

BrpV

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopV

, B

rpV

[m

T]


BopV, BrpV vs. Ta (VDD= 24V)

BopV

BrpV

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopH

, B

rpH

[m

T]


BopH, BrpH vs. Ta (VDD= 24V)

BopH

BrpH

-4

-3

-2

-1

0

1

2

3

4

-50 -25 0 25 50 75 100 125 150

BopH

, B

rpH

[m

T]


BopH, BrpH vs. Ta (VDD= 12V)

BopH

BrpH

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

-50 -25 0 25 50 75 100 125 150

I DD

[mA

]


IDD vs. Ta (in various VDD)

3.8V

12V

24V

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0 2 4 6 8 10 12 14 16 18 20 22 24 26

I DD

[mA

]

VDD [V]IDD vs. VDD (in various Ta)

40℃

25℃

50℃

150℃


14. Disclaimer

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 temperatur e 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.

© 2014 Melexis NV. All rights reserved.

For the latest version of this document, go to our website at www.melexis.com

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2. Ordering information...Datasheet 390109225601, September, 2018 Page 6 of 14 Rev 001 10. Operating Characteristics 10.1. Definition of Vertical Magnetic Field The OUTA signal switches