| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 4-XFDFN Exposed Pad | 
                                                                            
                                            | Supplier Device Package | 4-DFN (1.1x1.4) | 
                                                                            
                                            | Operating Temperature | -30°C~85°C TA | 
                                                                            
                                            | Packaging | Cut Tape (CT) | 
                                                                            
                                            | Published | 2013 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | Max Operating Temperature | 85°C | 
                                                                            
                                            | Min Operating Temperature | -30°C | 
                                                                            
                                            | Technology | Hall Effect | 
                                                                            
                                            | Voltage - Supply | 1.6V~5.5V | 
                                                                            
                                            | Function | Omnipolar Switch | 
                                                                            
                                            | Current - Supply (Max) | 9μA | 
                                                                            
                                            | Output Type | Push-Pull | 
                                                                            
                                            | Max Output Current | 500μA | 
                                                                            
                                            | Polarization | North Pole, South Pole | 
                                                                            
                                            | Current - Output (Max) | 500μA | 
                                                                            
                                            | Max Supply Current | 9μA | 
                                                                            
                                            | Sensing Method | Hall Effect | 
                                                                            
                                            | Test Condition | -30°C ~ 85°C | 
                                                                            
                                            | Sensing Range | ±3.9mT Trip, ±3.7mT Release | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                AK8789 Overview
The magnetic switch is packaged in Cut Tape (CT) to protect it from damage. As a safety precaution, the magnetic switches are packaged in 4-XFDFN Exposed Pad packages. A good performance can be achieved with magnetic switches that can deliver 9μA as the maximum current. In their operating mode, these switches can output a maximum current of 500μA. Magnetic switches should be able to output 500μA of current. It is possible for these switches to supply a maximum current of 9μA. You can set the maximum operating temperature of the magnetic switches to 85°C. A magnetic switch must operate at a temperature above -30°C to work. 
AK8789 Features
Packaging: Cut Tape (CT)
Moisture Sensitivity Level (MSL): 1  (Unlimited)
Supply Voltage: 1.6V~5.5V
Operating Temperature: -30°C~85°C TA
Mounting Type: Surface Mount
Output Type: Push-Pull
Maximum Supply Current: 9μA
AK8789 Applications
There are a lot of AKM Semiconductor Inc. AK8789 Magnetic Switches applications. 
- Flow-rate sensing
- Robotics control
- Steering position
- Medication dispensing control
- End of travel and index sensors
- Position tracking
- Control of magnetic apparatus
- Reading of magnetic data storage media
- Commutation of brushless DC motors
- Flow metering