1. Hall and AMR Technology
Aug, 2012
Hall and AMR Technology

2. Agenda
Basic theory
Product Portfolio
Success story
Q&A
Back up

3. - Theory of Operation + S N I I S Hall-Effect Sensing Mechanism
Magnetoresistive (MR) Sensing Mechanism I
V=0 S N + -
Current source is applied
through a thin sheet of
semiconductor material
A magnetic field applied parallel to the element changes its resistance and creates a current
change I S N
V=Vhall
2SS S N
Magnet
2SS
A magnetic field applied
perpendicular to the element creates a voltage change = Vhall N S
MR is omnipolar - Either Pole will operate the Sensor
Hall is generally bipolar - The output is pole-dependent, but
it can be designed to be omnipolar (pole independent, e.g. next gen Hall SS351AT/SS451A)

4. Comparison of Hall and AMR

5. Digital Hall Block Diagram

6. Magnetic Sensing Types
DIGITAL
Bipolar
Typically requires 2 poles: One pole to turn ON, and opposite pole to turn OFF
Operate point to turn ON is typically +Gauss (South), release is -Gauss (North)
Although not typical, operate and release points may both be + (South) or
both – (North) Note: latching is not guaranteed
Bipolar Latching
True latching device, always requires 2 poles: 1 to turn ON, opposite to turn OFF
Guaranteed to turn ON with +Gauss (South) only, OFF with –Gauss (North) only
Unipolar
Only one pole required to operate and release the sensor
Turns ON with +Gauss (South) for all products, except SS3xx that turns ON with North pole
Will turn OFF when magnetic field is removed
Omnipolar
Operates with any pole (North or South)
e.g. magnetoresistive sensors, or omnipolar Hall sensors
ANALOG
Linear
Analog output proportional to magnetic field strength, operates with North or South.
Offset (Output at Zero Gauss) = Typically ½ of Supply voltage
+Gauss (South) will increase Vout, -Gauss (North( will decrease Vout

7. Magnetic Sensing Types
Bipolar: Typical graph is Sensor 2, but
could also be Sensor 1 or 3
Latching: Typical Graph is only Sensor 2
Unipolar: Typical graph is Sensor 3, but it
could be Sensor 1 in some cases
Omnipolar: Typical Graph is Sensor 1 and
Sensor 3
Digital **
Max OP – Gauss level which can guarantee to switch on the sensor;
Min RP- Gauss level which can guarantee to switch off the sensor;
Differential- OP-RP
Analog

8. Bipolar vs Bi-CMOS Fab Process
Bipolar (Analog)
• Used on legacy Hall designs
• Improved matching (reduced offset)
• Robust/rugged
• Well-established Hall element design techniques
• Digital circuits are possible with bipolar, but they are large and costly
CMOS (Digital)
• High impedance (low current draw)
• Complex circuitry in small area
• More precise analog switches
• Analog circuits are possible with CMOS, but performance is inferior to bipolar
• Competitors using CMOS fab process include Melexis, Micronas, and Diodes
Bi-CMOS (Mixed Signal)
•Allows the designer to choose the best from both technologies to combine high performing analog components with compact, low cost, low current digital circuitry
• Competitors using Bi-CMOS include Allegro and Infineon

9. Bipolar vs CMOS

10. IC Assembly Process

11. Typical Hall IC packaging
SOT-89
TO-92
(SIP-3)
SOP-8

12. July, 2012
Product Portfolio

13. Hall/MR Product Line Overview
1st Level
2nd Level
SS311PT
SS30AT
SS340RT
SS351AT
SS361RT
SS50AT
SS500
SS59ET
SS552MT
VF526DT
SR16
SR17
SR13
SS40
SS41
SS400A
SS400R/P
SS490
VF401
VF431PP
VF441P
SR15
APS00B
SS94
2SS52M
SOT-23, SOT-89, TO-92, 8 Pin SOIC, ceramic Packages

14. 1st Level Hall & MR Sensors
2SS52M Digital Magnetoresistive Sensor SS552MT SMT version
SS400 Series Digital Hall & VF401 20Wire MR
SS400R/SS400P Series Digital Hall (New)
SS490 Series Miniature Ratiometric Linear Hall
Omnipolar magnetics
-40 to +150°C temp range
3.8 to 30 VDC operation
High sensitivity (15 G operate) allows up to 1” sensing distance
Flat TO-92 type package
Low-cost: R and P series
-40 to +150°C temp range
Sinking output w/ bipolar or unipolar magnetics (Digital)
Sink/Source output (linear)
Hi & lo sensitivities available
Markets
Applications
APS00B MR ±90° Hi-res Angular
Displacement Sensor
Motion Control
Instrumentation
HVAC
InfoTech
Medical
Var Speed Drive, RPM
BDCM, Piston detection
Flux, current, flow meter
Valve/damper position
Tape drive head position
Drug dispensing control
Analog response
High resolution angular or rotary position sensing
SS300 Series Digital Hall (New)
SS94 Series High-performance Ceramic Linear Hall
SOT-23 subminiature surface-mount package
Low voltage 3 V operation
Reverse polarity protection
Low cost
Laser-trimmed resistors provide accurate specs and compensate temp variations
Sinking or sourcing output
-40 to +125°C temp range
±100 to ±2500 G flux ranges
Sensing element in CSLA2 open-loop current sensors
SS500 Series Digital Hall & VF526DT Speed & Dir SS59ET low-cost Linear Hall
SOT-89 type surface-mount package
-40 to +150°C temp range (digital)
3.8 to 30 VDC operation (digital)
Same features as SS400-Series (digital)
Low-cost, good performance (linear)

15. 1st Level Hall/MR Selection Guide

16. 2nd Level Value-Added Hall & MR Assemblies
SR16 / SR17 Low-Cost Hall Vanes
4AV Series Hall Vane
Compact, robust package, mechanically interchangeable w/Honeywell opto sensors
Operated by low-cost, easy to fabricate ferrous vane for accurate pulse counting
Packaged magnet & sensor protected from dust or dirt
Operated by low-cost, easy to fabricate ferrous vane
Tightly controlled magnetics provides accurate pulse width
Lead wire, PC-board, and 4-pin connector termination options
40 to +125°C temp range
Markets
Applications
Sinking output w/medium level magnetics for stray field immunity
Industrial
Surface Transportation
Commercial/Medical
Wheel rotation/RPM
Pedal Movement
Throttle Position
Lever Position
Suspension
Gear shift position
RPM in fitness equipment
-20 to +85°C temp range
Non-contact sensing protected from dust & dirt
1GT Series High-performance Hall Gear-Tooth sensor
VX10 / VX80 Solid State Switch
Back-biased Hall senses ferrous metal targets
10 to 3600 RPM, output independent of RPM
-40 to +150°C temp range, +160°C short term
EMI resistant - Will operate in noisy environment
Built-in reverse polarity and transient protection
Plunger operated, non-contact digital output w/ direct interfacing to solid state circuits
Low force operation
Rugged construction, reverse voltage protection, tested to >100 M operations
Wide variety of std levers & actuators available
UL recognized, CSA certified
Rely on Honeywell’s quality and experience

17. Value-Added Hall & MR Assemblies
103SR Series Hall (Prox-Type)
SR3 & SR4 Series Digital Hall (Prox-Type)
Metal bushing - Rugged, sealed, threaded, aluminum housing
Meets NEMA 1, 3, 3R, 3S, 4, 12 and 13
Digital sink or analog output.
Unipolar, bipolar or linear magnetics, various sensitivities
-40 to 100°C temp range,
(up to -40° to 125° for some products)
Cable / connector options
Plastic housing w/color coded wires
Meets NEMA 1, 3, 3R, 3S, 4, 4X,12 and 13
Sinking output w/ bipolar, unipolar (SR3) or omnipolar (SR4) magnetics
Markets
Applications
-40 to +85°C temp range
Cable / connector options
Material Handling
Packaging Machinery
Industrial
Surface Transportation
Commercial/Medical
Wheel rotation
Conveyor control
Motion encoding
Gear shift position
RPM in fitness equip.
UPS
Welding Equip
SR13/SR15 Series Low-cost Hall Probes
Quick-mount plastic housing
Unipolar or bipolar magnetics, various sensitivities
-40 to +85°C temp range
Cable / connector options
Inexpensive position sensing alternative.

18. Honeywell Magnetic Position Sensors
Summary – Honeywell differentiators
Value-added and custom magnetic sensor capability (2nd level assemblies, packaging, cables and connectors, etc.)
Availability of low-cost products w/ Honeywell quality & performance (new 1st level platform, introduced in )
Alternative magnetic sensing technologies (Magneto Resistive)
Broad linear Hall portfolio (from low-cost SS49E to hi-perf SS94)
Advanced products (APS00B, VF401, VF526DT)

19. Next Gen Hall Key Features & Benefits
New features
Low supply voltage (most: 3Vdc, some as low as 2.7Vdc)
SOT-23 subminiature SMT Package
Reverse voltage protection (all except sensors w/built-in pull-up resistor)
Omnipolar Hall
Unipolar and bipolar sensors with built-in pull-up resistors
Benefits
Low voltage capability helps reduce power consumption
Subminiature package supplied on tape and reel allows for a compact design with automated component placement, helping to reduce manufacturing costs
Built-in reverse polarity protection protects device from potential damage during installation
Omnipolar magnetics eliminates the need to know magnet polarity, potentially saving on magnet and assembly cost
Sensors with built-in pull-up resistors save eliminate the need to provide an external resistor, saving on component cost and PC board real estate.

20. Honeywell Next Generation Hall Selection Guide
Rated Magnetic Specs are over full Operating and Voltage Ranges - 25°C
Digital Magnetics
Analog (Linear) Magnetics
Operate Point (Gauss)
Release Point (Gauss)
Differential (Gauss)
Supply Voltage (Vdc)
Sensitivity (mV/Gauss)
Null Offset (V)
Range (Gauss)
Average Current (mA)
Operating Temp (°C)
Description / Magnetic Type
SOT-23 P/N
Flat TO-92 P/N
IC Technology
Min
Typ
Max
Nom
25°C
@ Vs (Vdc)
Reverse Polarity
Bipolar
SS30AT 55
170
-170
-55 50
4.5 24
4.4
-40
125
Yes
Ultra Low Cost Bipolar with Built-In Pull-Up Resistor
SS311PT
SS411P
-30 60
140
-140
-80 30 40
2.7 7
5.5 5
150 No
High Sensitivity Low Cost Latching
SS361CT
SS461C 80
-50 -5
100
160 4 85 95
-95
190
Low Cost Latching
SS361RT
SS461R
120
-120 3
3.5
Ultra High Sensitivity Bipolar Latching
SS360ST
SS460S
BiCMOS
3.0
24.0
SS360NT
High Sensitivity Unipolar (Low Gauss)
SS341RT
SS441R 35 75
135 10
Medium Sensitivity Unipolar (Medium Gauss)
SS343RT
SS443R 45
205
180
Low Sensitivity Unipolar (High Gauss)
SS349RT
SS449R
240
305
460
225
370
Ultra Low Cost Unipolar with Built-in Pull-Up Resistor
SS345PT
SS445P
280 25
105
Omnipolar Hall - Regular Power
SS351AT
SS451A
±35
±85
±135
±10
±40
±120
Low-Power Omnipolar - High Duty Cycle
SL353HT
BiCMOS Not Chopper Stabilized
±20
±60
±110 ±5
±45
±95 15
2.2
0.33
2.8
Low-Power Omnipolar - Low Duty Cycle
SL353LT
0.0018
Low cost Linear
SS39ET
5.0
6.5
1.0
1.4
1.75
2.25
2.50
2.75
±1000 6

21. SL353 Micropower Hall-Effect Sensor ICs – Features/Benefits
Energy efficient
Supply voltage as low as 2.2 Vdc, combined with very low average current (1.8 µA typ. for SL353LT), reduces power consumption, provides extended battery life, and promotes energy efficiency
Versatile
Omnipolar capability with high and low duty cycle options allows for use in many potential applications with low power requirements and/or battery operation, including motion control, lid closure detection, presence-absence, metering, and displacement sensing
Non-chopper stabilized design
Does not use chopper stabilization, eliminating noise generated by products using this technique
No unnecessary filters are needed to compensate for the noise, which minimizes board space, parts counts and costs
Stable
Thermally balanced integrated circuit provides for stable operation over a wide temperature range, from -40° to 85 °C [-40° to 185 °F]
Subminiature size
SOT-23 subminiature package size requires less PCB space, allowing for use in smaller assemblies

22. SL353 Micropower Hall-Effect Sensor ICs – Features/Benefits
Price competitive
By using BiCMOS technology, Honeywell has been able to design a reduced size integrated circuit, saving on manufacturing costs while still meeting customer requirements; these savings can result in lower costs to customers
Helps reduce total system cost
Because these sensors can be operated by a North or a South pole, they do not require the magnet polarity to be identified, thus making installation easier and potentially reducing system cost
Reduces manufacturing costs
Supplied on tape and reel, often allowing for automated, lower-cost pick and place assembly which can help the customer reduce manufacturing costs
Simplifies interfacing
Push-pull output allows for easy interfacing with common electrical circuits without the need for a pull-up resistor
Compliant
RoHS-compliant materials meet Directive 2002/95/EC

23. SL353 Micropower Hall-Effect Sensor ICs – Competition
Key competitors include Allegro’s A3211ELH and A3212ELH sensors, and Diodes’ AH180N-W sensor
Honeywell’s key competitive advantages include:
Honeywell’s slightly lower minimum supply voltage capability improves flexibility of use within the application and can help reduce power consumption
Honeywell’s lower active mode time, lower sleep mode current, and average current help to reduce power consumption and extend battery life
Does not need external capacitor to filter out chopper noise, potentially saving PC board space and cost
Push-pull output does not require external pull-up resistor, potentially saving PC board space and cost

24. Low Power Hall Sensor Current Consumption

25. July, 2012
Applications

26. Magnetic Sensors Market & Applications
Hall/MR Type
Major Applications
Digital / Bipolar
Brushless DC Motors
Axial fans
E Bikes
HVAC (Air Conditioners)
Digital / Latch
Automotive – Window lift motors
Industrial motors
Appliance motors
Digital / Unipolar
Appliance – Lid detection
Door position
Digital / Omnipolar
Flow control – water softners
Speed sensing for fitness equipment
Proximity sensing
Cylinder position sensing
Analog / Linear
Throttle controls – E Bikes
Current sensing
Liquid level sensing
Linear displacement
Electronic power steering
Rotary/angular position sensing

27. Potential Markets and Applications for New Platform
Potential Applications
Customer Needs
Products
Medication bin and drawer monitor on portable drug carts, anemometer, electronic balance sensor, door latch on medical carts, fluid level float location; motor assemblies for medical equipment
Material handling, automation, machine control, variable speed drives
Speed detection of blower motors, brushless DC motors, pressure transducer bellows, damper / valve positioning (variable air volume)
Valves, flow meters for utilities/petro-chem, chemical, oil/gas, food/bev
Steering angle position, window lift control, rotary position sensing, vehicle motor control, speed/RPM sensing, position control
Motor control, flow control, RPM sensing in fitness equipment, door lock sensing in appliances, lid closure detection in laptop computers and office equipment
Hospital Hardware
Accurate position monitoring
Access control
Low audible noise
Value
Stability over temperature
Small footprint
Accurate flow monitoring
Enhanced reliability, reduced repair costs
Easy integration
Enhanced energy efficiency
Enhanced durability, reduced maintenance
Enhanced reliability, reduced repair costs
Compact size
Accurate position or RPM monitoring
Low power consumption
Small size
Lower cost
SS361RT/SS461R
SS311PT/SS411P
SS30AT/SS40A
SS343RT/SS443R
SS345PT/SS445P
SS341RT/SS441R
SS349RT/SS449R
SS351AT/SS451A
SS30AT
Medical
HVAC
Industrial
Flow Control
Motion Control
Heavy duty vehicles, Agriculture, Construction
Trans
Appliances, Electric Bicycles & Scooters, Computers
Other

28. Motion Control – Magnetoresistive Position Sensors
Industry Leaders
Delco (AD) - USA
SICK - Germany
Balluff - Germany
ZhangJi - China
Gimatic – Italy
Fritsch - Germany
Embedded Control Products
Digital Magneto Resistive Sensors 2SS52M, SS552MT
Analog Magneto Resistive sensors – APS00B

29. DC Motor basic theory

30. BLDC

31. BLDC clockwise Hall IC：
Detect direction and speed based on three hall IC output
H3 H2 H1 N S
Magnet
(4-Pole Shown)
clockwise
Hall IC：
Symmetry of high and low level output
Consistence of operate and release point
Good Electric strength H1
Standard H2
Behind H1
Behind H2 H3

32. Motion Control – Brushless DC Motors
Controller +V
Driver
Circuit
Logic
Command Signal
Windings
Hall Effect
Bipolar Sensors
Input
Power
AC or DC
Logic Power
Power Supply
Industry Leaders
Comair Rotron - USA
EBM - Germany
Pacific Scientific - USA
Tianma - China
Servo Magnetics - USA
Embedded Control Products
Hall Sensors – SS4 series, SS5 series, SS421 Series
Speed & Direction Dual Hall Sensors – VF526DT
Customised value added multiple sensor systems
Major Applications
Motor Controls for:
HVAC Fans
Computer Cooling Fans
Computer Disc Drives
Metering Pumps
Audio & Video Equipment

33. July, 2012
Success Stories

34. Application, Performance, Customer Relationship
Success Story
Product
SS343RT (Next Gen Hall)
Industry
Industrial
Application
Sewing Machine’s Needle
How we won
Working with Design Engineer w/ full tech support
Right product- performance/price
Good customer relationship while compete w/ MELEXIS (US5881)
Value
US$50~60K/year* 2~3yrs
Product
SS311PT
Application
BLDC for toy (aircraft, car etc)
How we won
Good Price/performance, SOT-23 package with pull-up resister
early design in support
Application, Performance, Customer Relationship

35. Success Story HON Ref: Hall Sensor SS443R
Application: handspike (The hall is used to stop the treadmill when someone pulls a magnet. The application is to protect the old man in the running process)
Competition: AKE, and AP local hall competitors
Why won: Technical support
Life size: $0.28 M
SOP: Q3, 2011

36. Success Story: Next Gen Hall Sensors for Infusion Pumps
Product
SS49 , SS495A1
Industry
Medical/Infusion Pumps
Application
One SS49 is used to determine the presence/absense of the cartridge
One SS495A1 is used to determine the amount of fluid delivered from the pump motor.
How we won
the sensor performed better in the application than the current Allegro part
Right product- Omnipolar sensor , do not need to identify the poles of the magnet
Good customer relationship
Value
US $125,000 over 5 years
Internal Use Only. Not for distribution outside your organization.

37. Success Story Potential rev 200KUSD Tubular Motor Product
SS30AT (Next Gen Hall)
Industry
Industrial
Potential rev 200KUSD
Application
Tubular Motor
What I do
Working with Design Engineer w/ full tech support
Right product- performance/price

38. Success Story HON Ref: Hall Sensor SS413A
Application: E-bike motor (Tricycle)
Competition: AP local hall competitors (AH product and SX products)
Why won: Quality, Honeywell reputation
Life size: $0.66 M
SOP: Q3, 2011

39. Application, Performance, Customer Relationship
Success Story
Product
SS541GT
Industry
Transportation
Application
Shifter position
How we won
Product performance (e.g. sensitivity)
Working with Design Engineer w/ full tech support
Right product- performance/price
Good customer relationship while compete w/ Allegro
Value
US$60~ 70K/year* 3yrs
Application, Performance, Customer Relationship

40. Success Story Product SS59ET (Linear Hall) Industry Industrial
Potential rev 140KUSD
Application
Drain pump for washing machine
What I do
New application
Working with Design Engineer w/ full tech support
Right product- performance/price

41. Success Story Product SS466A (Bipolar Latch Hall) Industry Appliances
Potential rev 450KUSD
Application
Running machine
Competitor
Allegro: A3281
What I do
Working with Design Engineer w/ full tech support
Design and manufacture test equipment for the customer
Right product- performance/price

42. Success Story Product SS59ET (Linear Hall) (12pcs per set) Industry
Appliances
Potential rev 100KUSD
Application
Money Counter
What I do
New market and application
Working with Design Engineer w/ full tech support
Design and choose right magnet for the customer
Right product- performance/price

43. Success Story HON Ref: Next Gen Hall SS466A
Application: Brushless DC Motor for fan
Detect the position of the rotor to control and switch the power supply
Competition: Allegro
Why won: lead time and phase out of the Allegro’s product
Life size: $ 3.12 M
SOP: 4Q 2011

44. Project of design in-won
Product:
SS526GT
Amount rev: 100KUSD
Application:
Tubular motor
What I do:
Working with Design Engineer w/ fully
tech support.
Provide right product to customer.
Product:
SS543AT
Amount rev: 116KUSD
Application:
Cash register
What I do:
Working with Design Engineer w/ fully
tech support.
Provide right product to customer.
Product:
SS413A
Amount rev: 158.4KUSD
Application:
Speed sensor
What I do:
Working with Design Engineer w/ fully
tech support.
Provide right product to customer.
Product:
SS41
Amount rev: 100KUSD
Application:
Micro motor
What I do:
Working with Design Engineer w/ fully
tech support.
Provide right product to customer.

45. Project of design in-won
Product:
SS443R (2pcs per set)
Amount rev: 280KUSD
Application:
Massage machine
What I do:
Working with Design Engineer w/ fully
tech support.
Provide right product to customer.
Product:
SS495A1
Amount rev: 480KUSD
Application: ATM
What I do:
Working with Design Engineer w/ fully
tech support.
Provide design of magnetic field for customer.
Provide right product to customer.
Product:
SS40AF
Amount rev: 921.6KUSD
Application:
PG motor
What I do:
Product training for the customer.
Provide right product to customer.
Product:
SS49F
Amount rev: 180KUSD
Application:
Handle bar
What I do:
Provide right product to customer.

46. Potential Application
Product
SS361RT
Industry
Transportation
Application
Shifter position
How we won
Product performance (e.g. sensitivity)
Working with Design Engineer w/ full tech support
Right product- performance/price
Good customer relationship while compete w/ Allegro
Value
US$30~ 50K/year* 3yrs
Typical customer
ECS (2~3pcs per set)
*Source- sea/pac sales team

47. Potential Application
Mouse wheel controller
2pcs unipolar hall sensor at each side
Intelligent mouse example
Plus another 2pcs linear hall
intelligent mouse-Hall
Hongshi
Industrial
intelligent mouse
SS495A
$       0.55
 $            1,056,000
2011/12/31
$           264,000.00

48. Q & A

49. Back Up - Tools / Selection Guides

50. 常见的几种磁铁材料
铁氧体是一种具有铁磁性的金属氧化物。铁氧体硬磁材料磁化后不易退磁，因此，也称为永磁材料或恒磁材料。如钡铁氧体、钢铁氧体等。它主要用于电信器件中的录音器，拾音器、扬声器，各种仪表的磁芯等。这类材料在较弱的磁场下，易磁化也易退磁， 因此在铁氧体软磁材料通常用于电子元器件和磁记录材料。
钐钴磁铁主要是由金属钴、钐和其它一些稀土元素构成的一种高性能的永久磁铁，其优点是最高工作温度可达300摄氏度，矫顽力大，同时具有很强的抗腐蚀和抗氧化性。因此钐钴磁钢通常不需要作电镀处理，且被广泛应用在马达、仪表、传感器、探测器、发动机、雷达及其他高科技领域。
钕铁硼(NdFeB)磁铁也叫钕磁铁，是在80年代开发的第三代稀土磁铁, 是目前磁力最强的稀土磁铁。极好的磁性和稳定性使得钕铁硼得以迅速的发展及广泛的应用。在很多领域比如仪器仪表, 汽车工业, 石油化工产业和磁性医疗保健产品方面，它取代了传统的铁氧体，铝镍钴，钐钴。

51. SR4 Selection Guide

52. 103SR Selection Guide

53. 线性产品 SS49E/SS59ET（低成本） SS494B/SS495A/SS496B/SS491B SS94A1/SS94A1F
应用举例；
电流传感
变频器
电动机控制、保护、指示
位置传感(电动车的调速把手)
旋转编码器
振动/倾斜传感器
磁盘驱动
压力膜片/膜盒/重量传感
无电刷的非接触电位计
风门机械位置 – HVAC
零售店防窃装置
售烟机
肾析设备
阀门位置检测
SS49E/SS59ET（低成本）
灵敏度（mV/G）：1.4+/-0.3
工作温度：- 40C C
封装：TO-92/SOT-89
供电：3V—6.5V
SS494B/SS495A/SS496B/SS491B
灵敏度（mV/G）：5，3.125，2.5，50
工作温度：- 40C C/- 40C-- +85C
封装：TO-92
供电：4.5V—10.5V
SS94A1/SS94A1F
灵敏度（mV/G）：5+/-0.1，25+/-0.1
工作温度：- 40C C
封装：陶瓷基底（带厚膜电阻）
供电：6.6V—12.6V

54. 其他几种特殊的磁传感器
电流型产品 VF431PP/VF441P 常温动作点：60G/-60G, 135G/28G 工作温度：- 40~150C, 0~85C 封装：TO-92-2 供电：3.8V ~ 24V 主要应用：需要长距离传输信号，能很好的抑制干扰。
磁阻电流型产品 VF401
常温动作点：7G/-7G，
工作温度：- 40C C
封装：TO-92-2
供电：4.5V ~ 18V
主要应用：高精度旋转位置测量，高灵敏度/长距离检测，轮边检测，电动门窗，发动机管理
互补开关霍尔 SS42R
小尺寸(四只引脚)
锁存型霍尔，互补型
有源高/有源低双输出，有效减少外部电路
带电压反向保护电路
输出电流大,4.7mA
主要应用：马达换向和速度控制，加热和制冷风扇，输送线马达，计算机制冷风扇，汽车点火正时，直线或旋转位置测量，转速测量
双霍尔开关位置传感器 VF526DT/SS526GT
小尺寸(四只引脚，贴片和直插）
每个小型塑封内包括2 个独立霍尔传感器，加逻辑电路运算
频率速度输出，逻辑电平（高或低）方向输出
相对于零点对称的动作/ 释放点（双极锁存），温度补偿磁特性
宽工作电压范围（3.8~30VDC），低功耗（常温下7.5mA）
主要应用：防夹电动马达控制系统，用于电动门窗，电动椅头枕、电动滑门、电动天窗、仓库开门，电子驾驶系统磁编码，滑轮、皮带的运动控制，位置、皮带的运动控制，位置和速度检测，风扇控制，旋转轴监测，线性位移测量（异性磁极相间的磁带）