Hall Effect ICs

  • Inquiry

Detects magnetic field and output digital signal.
Principally used for non-contact type switches, rotation detection, and position detection.

 

Applications:
Motors such as those in home appliances  (air conditioners and washing machines) and fans
Switches for portable terminals and home appliances, etc.
Automobiles

Line-up

Switch
Latch

 

Product Series

AK/EM Series:   Si Monolithic
EW Series:         InSb Hybrid
EZ Series:         InAs Hybrid

 

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-403Latch2.5 to 5.510.0-10.0-30 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-413Latch2.5 to 5.53.0-3.0-30 to 1153-SOPOpen Collector8Continuous
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

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: 
                              

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]

                    

 

 

 

Application Note                                                                                                                                                                        

Detection of brushless motor rotation

Detection of rotation speed

Open/Close switch

Rotating device (jog mechanism) / Slide device

References                                                                                                                                                                                     

Precautions for Hall effect IC

Definition of Terms for Hall effect IC

Reliability Test Terms for Hall effect IC

Application of Hall effect IC

FAQ about hall effect IC
Hall effect IC common
Q1 Where is the sensor location in the package?

Q2 Which output is present at power on, H or L?
Q3 What kind of plating is applied to the lead terminals in the hall effect IC?
EW series (excluding EW-6672 that are driven by hall element pulses)
Q1 How fast the response speed (the duration from the magnetic flux density exceeds Bop to the time when the output changes) is?
EM series and EW-6672

Q1 Shall the bypass capacitor be installed?
Q2 What is the difference between EM-0711 (EM-1711) and EM-1712?

 

 FAQ and answers about hall effect IC

Hall effect IC common

   Q1 Where is the sensor location in the package? 
 A1 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. 
     
 Q2 Which output is present at power on, H or L? 
 A2 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. 
     
 Q3 What kind of plating is applied to the lead terminals in the hall effect IC? 
 A3 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 that are driven by hall element pulses)                                                                   
 Q1 How fast the response speed (the duration from the magnetic flux density exceeds Bop to the time when the output changes) is? 
 A1 It depends on the grade, but roughly estimated, it is 5 μs or less.
     

EM series and EW- 6672                                                                                                                                                            
 Q1 Shall the bypass capacitor be installed?

   A1 Install in principle. 
     
 Q2 What is the difference between EM-0711 (EM-1711) and EM-1712? 
 A2 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.

Related Content

                     

Page Top