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Description : Dual, 2-Wire Hall-Effect sensor Interface with Analog and Digital Outputs

General Description
The MAX9621 is a continuation of the Maxim family of Hall-effect sensor interfaces that already includes the MAX9921. The MAX9621 provides a single-chip solution to interface two 2-wire Hall-effect sensors to low-voltage microprocessors (FP) through either a digital output for Hall-effect switches or an analog output for linear information or both.
The MAX9621 protects the Hall sensors from supply transients up to 60V at the BAT supply. Normal operating supply voltage ranges from 5.5V to 18V. If the BAT supply rises above 18V, the MAX9621 shuts off the current to the Hall sensors. When a short-to-ground fault condition is detected, the current to the Hall input is shut off and the condition is indicated at the analog output by a zero-current level and a high digital output.

Features
✦ Provides Supply current and Interfaces to Two
   2-Wire Hall-Effect sensors
✦ 5.5V to 18V Operating Voltage Range
✦ Protects Hall sensors Against Up to 60V Supply
   Transients
✦ Low-Power Shutdown for Power Saving
✦ Filtered Digital Outputs
✦ Analog Output Mirrors the Hall sensor current
Hall Inputs Protected from Short to Ground
Hall sensor Blanking Following Power-Up and
   Restart from Shutdown and Short to Ground
✦ Operates with ±3V Ground Shift Between the Hall
✦ensor and the MAX9621
✦ ±2kV Human Body Model ESD and ±200V Machine
   Model ESD at All Pins
✦ 3mm x 5mm, 10-Pin µMAX Package

Applications
   Window Lifters
   Seat Movers
   Electric Sunroofs
   Seatbelt Buckles
   Door Power Locks
   Ignition Key
   Steering Column
   Speed Sensing

Maxim Integrated
Maxim Integrated
Description : Dual, 2-Wire Hall-Effect sensor Interface with Diagnostics

General Description
The MAX9921 provides a single chip solution to interface two 2-wire Hall-effect sensors to a low-voltage microprocessor (µP). This device supplies and monitors the current drawn by two Hall-effect sensors, filters the sensed current level, and outputs the corresponding logic level.

Features
♦ Withstands 60V at BAT Supply and Hall Inputs
♦ 6V to 18V Operating Voltage Range
♦ Provides Supply current and Interfaces to Two 2-Wire Hall sensors
♦ Error Output with Diagnostics of Hall Inputs and BAT Voltage
♦ Protects Hall sensors from Overvoltage by Isolating Them from Supply Transients
Hall Inputs Protected from Short to Ground
♦ Ramps current to Hall sensors at 4mA/µs
♦ Output Enable Input Allows Multiplexing of Outputs from Multiple MAX9921s
Hall Output Filtering
Hall sensor Blanking Following Hall sensor Power-Up or Restart
♦ Low-Power Shutdown, Controlled with OE and DIAG Inputs
♦ Operates with ±2V Ground Shifts Between Hall sensor and MAX9921

Applications
   Door Modules
   Window Lifters
   Seat Movers
   Electric Sunroofs
   Powered Lift Gate Controllers
   Powered Running Boards
   Seatbelt Buckles

Part Name(s) : HAL2810
Micronas
Micronas
Description : Linear Hall-Effect sensor with LIN Bus

Linear Hall-Effect sensor with LIN Bus



The HAL 2810 is a member of the Micronas family HAL 28xy of programmable linear Hall-effect sensors.

It features a Hall-plate with spinning current offset compensation technique and a precise temperature sensor which is used for temperature compensation of both the Hall sensors sensitivity and offset.



Features

High precision linear Hall-effect sensor

Spinning-current offset compensation

Built-in temperature sensor

Operating junction temperature range: −40 °C… 140 °C

Customer-programmable temperature compensation of Hall-sensitivity (2nd order) and Hall-offset (1st order)

Overvoltage and reverse voltage protection at all pins.

Magnetic characteristics extremely robust against mechanical stress

Digital signal processing

High-precision low-pass filter with constant gain at the pass band and a high attenuation at the stop band. Sample frequency adjustable to 27 Hz and 54 Hz.

12 bit resolution

Non-volatile EEPROM with redundancy and lock function

LIN slave according to LIN Specification Package Rev. 2.0

Supported LIN baud rates: 10.4 kbps and 20 kbps

Integrated LIN physical layering



Major Applications

Due to the sensor’s versatile programming characteristics and low drifts, the HAL 2810 is the optimal system solution for applications such as:



Contactless potentiometers

Angular measurements (e.g. for fuel-level sensing)

Linear movement (e.g. Seat track position)

Linear force or torque measurements


Description : IMC-Hall®current sensor (Triaxis®Technology)

General Description
The MLX91206 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® current sensor is automotive qualified.

Features and Benefits
❐ Triaxis® Technology
❐ Very high sensitivity due to Integrated
   Magnetic Concentrator (IMC-Hall®)
❐ Programmable high speed current sensor IC
❐ Wideband: DC to 90kHz
❐ Short response time
❐ Programmable linear transfer characteristic
❐ Selectable
   ❐ analog ratiometric output
   ❐ PWM output with 12 bit resolution
❐ Thermometer output
❐ 17 bit ID Number
❐ SOIC8 package RoHS compliant
❐ Lead free component, suitable for lead free
   soldering profile 260°C (target), MSL3

Application Examples
❐ DC/AC (inverter) converter
❐ DC/DC switched mode power supply
❐ Battery Management
❐ Smart fuse (over-current detection)
❐ BLDC motor (phase current)
❐ AC/DC Converters

Part Name(s) : OHB900
TT Electronics.
TT Electronics.
Description : Hallogic Hall-Effect sensor Assembly

Description:
The OHB900 consists of a Hall-effect sensor similar to the OH180U and a rare earth magnet mounted in a low-cost plastic housing. The magnet produces optimum magnetic flux at the Hall-effect sensor location. The sensor has an open collector transistor output, which is activated when the slot is open. When the slot is blocked by a ferrous material that reduces the magnetic flux density at the Hall-effect sensor location, the open collector output transistor switches off. The device provides up to 25 mA of sink current. Output characteristics are constant at switching frequencies from DC to over 200 kHz.

Features:
• Non-contact motion sensing
• Operates over a broad range of supply voltages (4.5 V to 25 V)
• Excellent temperature stability
Hall element, linear amplifier and Schmitt trigger on a single Hallogic
   silicon chip
• Performs in dirty environments over wide temperature range
• 0.125” (3.18 mm) wide gap

Applications:
• Non-contact slotted magnetic switch
• Harsh environment encoder
• Assembly line automation
• Machine automation
• Machine safety
• End of travel sensor
• Door sensor

TT Electronics.
TT Electronics.
Description : Hallogic Hall-Effect sensor Assembly

Description:
The OHB3040 consists of a ceramic Hall-effect sensor (OMH3040) and a rare earth magnet mounted in a low-cost plastic housing. The magnet produces optimum magnetic flux at the Hall-effect sensor location. The sensor has an open collector transistor output, which is activated when the slot is open. When the slot is blocked by a ferrous material that reduces the magnetic flux density at the Hall-effect sensor location, the open collector output transistor switches off. The device provides up to 25 mA of sink current. Output characteristics are constant at switching frequencies from DC to over 200 kHz. The OHB3040B has Hi-Reliability processing level B while the OHB3040S has Hi-Reliability processing level S.

Features:
• Non-contact motion sensing
• Operates over a broad range of supply voltages (4.5 V to 25 V)
• Excellent temperature stability
Hall element, linear amplifier and Schmitt trigger on a single Hallogic
   silicon chip
• Suitable for military and space applications.
• Performs in dirty environments over wide temperature range
• 0.125” (3.18 mm) wide gap

Applications:
• Non-contact slotted magnetic switch
• Harsh environment encoder
• Assembly line automation
• Machine automation
• Machine safety
• End of travel sensor
• Door sensor

Optek Technology
Optek Technology
Description : Hallogic Hall-effect sensor Assembly

Description:
The OHB3040 consists of a ceramic Hall-effect sensor (OMH3040) and a rare earth magnet mounted in a low-cost plastic housing. The magnet produces optimum magnetic flux at the Hall-effect sensor location. The sensor has an open collector transistor output, which is activated when the slot is open. When the slot is blocked by a ferrous material that reduces the magnetic flux density at the Hall-effect sensor location, the open collector output transistor switches off. The device provides up to 25 mA of sink current. Output characteristics are constant at switching frequencies from DC to over 200 kHz. The OHB3040B has Hi-Reliability processing level B while the OHB3040S has Hi-Reliability processing level S.

Features:
• Non-contact motion sensing
• Operates over a broad range of supply voltages (4.5 V to 25 V)
• Excellent temperature stability
Hall element, linear amplifier and Schmitt trigger on a single
   Hallogic silicon chip
• Suitable for military and space applications.
• Performs in dirty environments over wide temperature range
• 0.125” (3.18 mm) wide gap

Applications:
• Non-contact slotted magnetic switch
• Harsh environment encoder
• Assembly line automation
• Machine automation
• Machine safety
• End of travel sensor
• Door sensor

Description : IMC-Hall® current sensor (Triaxis®Technology)

General Description
The MLX91208 is a monolithic sensor IC featuring the Triaxis™ Hall technology. Conventional planar Hall technology is only sensitive to the flux density applied orthogonally to the IC surface. The IMC-Hallcurrent 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.

Features and Benefits
❐ Programmable high speed current sensor
❐ Triais® Technology
❐ Very high sensitivity due to Integrated
   Magnetic Concentrator (IMC-Hall®)
❐ Wideband: DC to 200kHz
❐ Very short response time: 3µs
❐ Programmable linear transfer characteristic
❐ Selectable analog ratiometric output
❐ SO-8 package, RoHS compliant
❐ Lead free component, suitable for lead free
   soldering profile 260°C (target), MSL3

Application Examples
❐ Inverter HEV and EV
❐ BLDC motor current monitoring
❐ Smart fuse (over-current detection)
❐ AC/DC Converter
❐ DC/AC Converter (Inverter)
❐ DC/DC switched mode power supply

Part Name(s) : HKW22
Beijing Yaohuadechang Electronic Co., Ltd.
Beijing Yaohuadechang Electronic Co., Ltd.
Description : Hall open loop current sensor

Hall open loop current sensor

open loop Hall circuit, PCB welding type, Detect DC,AC and pulse current.

Technical indicators:
   Flame resistance: UL94-V0
   Working temperature: -10~+70℃
   Storage temperature: -40~+85℃
   Bandwidth: DC~50kHz
   Dielectric strength: 2.5KV 50Hz 1min

Part Name(s) : HKS4030
Beijing Yaohuadechang Electronic Co., Ltd.
Beijing Yaohuadechang Electronic Co., Ltd.
Description : Hall open loop current sensor

Hall open loop current sensor

open loop Hall circuit,Sub-plate installation, Detect DC,AC and pulse current.

Technical indicators:
   Flame resistance: UL94-V0
   Working temperature: -10~ +70℃
   Storage temperature: -40~ +85℃
   Bandwidth: DC~ 25kHz
   Dielectric strength: 4.5KV 50Hz 1min

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