Hall Effect ICs

The Hall effect IC is a magnetic sensor that detects magnetic field and outputs a digital signal.
It is mainly used for non-contact type switches, rotation detection, and position detection.

Lineup

Lineup

Product Series

SeriesAK / EM seriesEW seriesEZ series
MaterialSi MonolithicInSb HybridInAs Hybrid
LatchAK8771EW400EZ410
AK8772EW410B
EM1011EW412B
EM1711EW432
EM1712EW500
EM6011EW610B

EW612B

EW632

EW710B

EW712B

EW732
SwitchAK8788AEW450BEZ470
AK8789EW453EZ471
EM1771EW463
EM1781EW650B
EM1791EW652B
EM6781EW6672

EW750B

EW752B

The product catalog is here.

Latch

Part# Data
Sheet
Automotive
qualified
Type Power
Supply
Sensitivity
Bop
Sensitivity
Brp
Oper.
Temp.
Package Output
Stage
Current
Comsumption
Drive
System




V mT mT
  mA
   
AK8771Latch1.6 to 5.51.8-1.8-30 to 854-SONCMOS6Continuous
AK8772Latch1.6 to 5.51.8-1.8-30 to 854-SONCMOS0.15Micro Power
EM-1011Latch3.5 to 183.0-3.0-30 to 1154-SOPOpen Drain6Continuous
EM-1711Latch1.6 to 5.51.8-1.8-30 to 854-SOPCMOS6Continuous
EM-1712Latch1.6 to 5.51.8-1.8-30 to 854-SOPCMOS0.15Micro Power
EM-6011YesLatch3.8 to 242.0-2.0-40 to 1503-SOPOpen Drain5Continuous
EW-400Latch4.5 to 1810.0-10.0-20 to 1153-SOPOpen Collector8Continuous
EW-410BLatch3.0 to 26.43.0-3.0-40 to 1153-SOPOpen Collector6Continuous
EW-412BLatch3.0 to 26.43.0-3.0-30 to 1153-SOPWith Pull-up-Resister6Continuous
EW-432Latch2.2 to 183.0-3.0-30 to 1153-SOPWith Pull-up-Resister8Continuous
EW-500Latch4.5 to 1810.0-10.0-30 to 1153-SIPOpen Collector8Continuous
EW-610BLatch3.0 to 26.43.0-3.0-40 to 1153-SOPOpen Collector6Continuous
EW-612BLatch3.0 to 26.43.0-3.0-40 to 1153-SOPWith Pull-up-Resister6Continuous
EW-632Latch2.2 to 183.0-3.0-30 to 1153-SOPWith Pull-up-Resister8Continuous
EW-710BLatch3.0 to 26.43.0-3.0-40 to 1153-SIPOpen Collector6Continuous
EW-712BLatch3.0 to 26.43.0-3.0-40 to 1153-SIPWith Pull-up-Resister6Continuous
EW-732Latch2.2 to 183.0-3.0-30 to 1153-SIPWith Pull-up-Resister8Continuous
EZ-410YesLatch3.8 to 244.2-4.2-40 to 1253-SOPOpen Collector9Continuous

Switch

Part# Data
Sheet
Automotive
qualified
Type Power
Supply
Sensitivity
Bop
Sensitivity
Brp
Oper.
Temp.
Package Output
Stage
Current
Comsumption
Drive
System




V mT mT
  mA
   
AK8788AOmnipolar1.6 to 5.53.02.2-40 to 854-SONCMOS0.015Micro Power
AK8789Omnipolar(dual output)1.6 to 5.52.52.0-30 to 854-SONCMOS0.009Micro Power
EM-1771Unipolar1.6 to 5.53.02.2-30 to 854-SOPCMOS0.009Micro Power
EM-1781Omnipolar1.6 to 5.53.02.2-30 to 854-SOPCMOS0.009Micro Power
EM-1791Omnipolar(dual output)1.6 to 5.52.52.0-30 to 854-SOPCMOS0.009Micro Power
EM-6781Omnipolar1.6 to 5.53.02.2-30 to 853-SOPCMOS0.009Micro Power
EW-450BUnipolar3.0 to 26.46.05.0-40 to 1153-SOPOpen Collector6Continuous
EW-453Unipolar2.5 to 5.510.07.5-30 to 1153-SOPOpen Collector8Continuous
EW-463Unipolar2.5 to 5.53.02.0-30 to 1153-SOPOpen Collector8Continuous
EW-650BUnipolar3.0 to 26.46.05.0-40 to 1153-SOPOpen Collector6Continuous
EW-652BUnipolar3.0 to 26.46.05.0-40 to 1153-SOPWith Pull-up-Resister6Continuous
EW-6672Unipolar2.4 to 3.31.51.2-30 to 853-SOPCMOS0.01Micro Power
EW-750BUnipolar3.0 to 26.46.05.0-40 to 1153-SIPOpen Collector6Continuous
EW-752BUnipolar3.0 to 26.46.05.0-40 to 1153-SIPWith Pull-up-Resister6Continuous
EZ-470YesUnipolar2 to 2426.020.0-40 to 1253-SOPOpen Collector6Continuous
EZ-471YesUnipolar2 to 2426.020.0-40 to 1253-SOPOpen Collector6Continuous

Technical Information

Technical Information

Selection of Hall effect IC

We offer a comprehensive range of Hall effect ICs to cater for different customer requirements.
The procedure for selecting the most appropriate Hall effect IC for your application is as follows:

Selection of Hall effect IC

Our Products may not meet your requirement. Please inquire for details.

Principle of operation of Hall effect IC

Circuit structure of Hall Effect IC

The Hall effect IC consists of Hall element and signal conditioning circuitry to convert the Hall element output into a digital output. The two devices are mounted in a single package with three active terminals(Power, GND and output).There are two choices of power consumption. Continuous powered devices with standard current consumption and pulsed powered devices at low duty cycles that significantly reduce the average current consumption to microamps.

●Continuous excitation type

Two types of output circuit are available: open collector type and an internal pull-up resistor type. The open collector type Hall effect IC is generally used to connect an external resistor RL as shown in Figure 2.
The normal operating temperature for this type is -30°C to 115°C.

[Figure 1: Circuit composition of Hall effect IC]
[Figure 2: Connection of Pulled-up Resisitor RL]
●Pulse excitation type (Micro Power)

The Hall element is driven by the electric current pulse shown in Figure 4, and the output is as shown in Figure 5. As for output when it is not driven, the immediately preceding state is maintained. Usually, the period of the pulse drive is predetermined in each grade of Hall effect IC and cannot be externally controlled. The normal operating temperature range for this type is -30°C to 85°C.

[Figure 3: Circuit composition]
[Figure 4: Pulse excitation electric current consumption (example for EM-1671) ]
[Figure 5: Operation timing diagram]

Operation of Hall effect IC

●Unipolar Hall Effect Switch

On/off is switched depending on the intensity of the magnetic field of the S-pole of the magnet.
This type is primarily used for position detection of a magnet.

[Operation of Unipolar Hall Effect Switch]
[Output waveform of Unipolar Hall effect Switch]
●Omnipolar Hall Effect Switch

On/off is switched depending on the intensity of the magnetic field in S-pole or N-pole of the magnet. This type is primarily used for position detection of a magnet.(It is not dependent on the direction of the magnetic pole.)

[Operation of Omnipolar Hall Effect Switch]
[Output waveform of Omnipolar Hall Effect Switch]
●Bioplar Hall Effect Latch

On/off is switched when the magnetic fields at the N-pole and the S-pole are applied alternately. This type is primarily used to detect revolution speed.

[Operation of Bipolar Hall Effect Latch]
[Output waveform of Bipolar Hall Effect Latch]

Reference Documents

FAQ

FAQ
(Frequently Asked Questions)

Questions & Answers

Hall effect IC common

[Q01] Where is the sensor location in the package?

[A01] For the location viewed from the sensor top, refer to the pdf file for each grade. For the depth from the marked surface, click here.

[Q02] Which output is present at power on, H or L?

[A02] When the magnetic flux density is Bop or higher, it is L. When it is Brp or lower, it is H. When it is between Bop and Brp, it varies.

[Q03] What kind of plating is applied to the lead terminals in the hall effect IC?

[A03] The EW-5 series is palladium plated. All others are tin plated and comply with RoHS. (As of April 2007)

EW series (excluding EW-6672)

[Q01] How fast the response speed (the duration from the magnetic flux density exceeds Bop to the time when the output changes) is?

[A01] It depends on the grade, but roughly estimated, it is 5 μs or less.

EM series and EW-6672

[Q01] Shall the bypass capacitor be installed?

[A01] Install in principle.

[Q02] What is the difference between EM-0711 (EM-1711) and EM-1712?

[A02] When PDN = H, in EM-0711 (EM-1711), the hall element drives continuously, but in EM-1712, the pulse drive turns on. Therefore, EM-1712 has smaller consumed current.

Application

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