sensors and motor control pdf

8/10/2019 Sensors and Motor Control PDF.

1/12www.diodes.com

SENSORSAND MOTORCONTROL


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COMPANY OVERVIEW

DIODES INCORPORATEDS PRODUCTS ARE DESIGNED FOR HIGH PERFOACROSS A WIDE RANGE OF EXISTING AND EMERGING APPLICATIONS

Diodes Hall Effect Sensors and Motor Control

Diodes offers a wide and comprehensiveproduct line for Hall Effect switching andBrushless Direct Current (BLDC) fan andmotor applications. Combining itssuperior Hall Effect technology, extensiveanalog design expertise, leading packagetechnology and manufacturing capability,Diodes can offer the outstanding systemsolutions across numerous applications.

Hall Effect Switch ICsHall Effect switch ICs provide simple andreliable solutions to contactless switching. They are used in many application areas

from open and close detection to rotationand flow monitoring. Using corearchitectures based on a stable patentedHall Effect plate design, Diodes providesthree comprehensive Hall Effect switchproduct families: Omnipolar, Unipolar andLatched Hall Effect switches.

The Diodes Hall Effect switch portfolio iswell suited to meeting the requirements of:

Cell phonesPortable PCsStill and video camerasMeteringMotor commutation

Rotation detectionLevel detectionContactless switching

All the Diodes Hall Effect switches aredesigned with the end application in mind,enabling highly effective system solutionsthrough wide operating ranges, variousoperate and release points, and ultra smalland low profile packaging.

DC Fan and Motor ControlAn intelligent approach to electronicsystem cooling is important. Air movementneeds to be optimized, power consumptionneeds to be closely controlled and theaudible noise and electromagneticinterference a motor generates needs tobe kept to a minimum.

Diodes offers four controller families and arange of Hall Effect Latches which providesan effective solution to brushless DC fans,motors, blowers and pumps. Ranging fromthe highly integrated but simple to useall-in-one products to the flexible featurerich pre-drivers, the product line suits awide range of applications from netbooks,notebooks, instrumentation, desktop PCs,servers, cooling of LED light engines toindustrial pumps and blowers.

Diodes fully supports the BLDC motorand fan market with Hall Effect drivers andpre-drivers, complemented by world classBipolar transistors, MOSFETs, full bridgeand half bridges, gate drivers and currentmonitors.

Diodes Incorporated is a leadingglobal provider of Discrete, Logic,and Analog semiconductors.

Its global footprint includes salesoffices in 5 countries andmanufacturing locations in China,Europe and the USA.

A focus on productinnovation, costreduction, acquisitionsand customer servicehas made DiodesIncorporated anindustry leader.Combining leading silicon andpackaging technologies, Diodesprovides a broad portfolio of Discrete semiconductorscomprising Bipolar Transistors,MOSFETs, Schottky diodes, SBR,switching diodes and functionalspecific arrays to enable ourcustomers next generation designs.

The Diodes' Analog IC portfolioconsists of 6 main areas: PowerManagement ICs, Standard Linear,Lighting, Sensors, Direct Broadcast

by Satellite and ApplicationsSpecific Standard Products.


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INDEX

Hall SwitchesUnipolar Hall Effect Switches 4Omnipolar Hall Effect Switches 5Latched Hall Effect Switches 6

Special Function SensorsAnisotropic Magnetoresistive(AMR) Sensors 7Nickel Temperature Sensors 7

Cooling Fan and Motor ControlAll-In-One Smart Fan andMotor DriversSingle Phase 8 Two Phase 9

BLDC Fan and Motor ControlPre-driversSingle Phase 10 Two Phase 11


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Unipolar Hall Effect SwitchesHALL EFFECT SWITCHES

The outputs are switched on with a single pole of sufficient magnetic field strength.The outputs are held until the magnetic flux density drops below the release point.

PartNumber Output Type

O p e r a t

i n g

V o l t a g e

A v e r a g e

S u p p

l y C u r r e n t

O p e r a t

i n g

P o i n t

B o p

R e l e a s e

P o i n t

B r p

T y p

i c a l

H y s t e r

i s i s

T P e r

i o d

T e m p

R a n g e

PackageOutlinesV A Gauss Gauss Gauss mS C

AH182 Single Open Drain 2.5 to 5.5 5 60 10 10 50 -40 to 85 SIP-3SC59

AH183 Single Open Drain 2.5 to 5.5 280 60 10 10 0.2 -40 to 85 SIP-3SC59

AH337 Single Open Drain 4.2 to 28 2000 150 30 60 na -40 to 125 SIP-3SC59

Product benefits

T H E D I O D E S A

D V A N T A G E

Providing small and simple contactless switches for applications rangingfrom battery-powered consumer to industrial

Product flexibility Wide operating range of 2.5V to 28V Surface mount or through hole packaging

Sensitivity options to cater to different field strengthsDesigned for multiple applications Optional micropower operation with sleep function Constant magnetic field monitoring for time sensitive applications

System stability and reliability Superior temperature stability and minimal switch point drift -40C to 85C/125C operating temperature options High ESD resilience

Regulator / Switch

Hall Plate Of f s e t

C a n c el l i n g

Amp

O u t p u t C on

t r ol l er

Vdd

Out

GndGnd

Rpu

SYSTEMPOWER

SYSTEMPOWER


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Product benefits

Page 5

Omnipolar Hall Effect SwitchesHALL EFFECT SWITCHES

The outputs are switched on with either a North or South Pole of sufficient magnetic field strength.The outputs are held until the magnetic flux density drops below the release point.

PartNumber Output Type

O p e r a t

i n g

V o l t a g e

A v e r a g e

S u p p

l y C u r r e n t

O p e r a t

i n g

P o i n t

B o p

R e l e a s e

P o i n t

B r p

T y p

i c a l

H y s t e r

i s i s

T P e r

i o d

T e m p

R a n g e

PackageOutlinesV A Gauss Gauss Gauss mS C

AH180 Single Open Drain 2.5 to 5.5 8 60 10 15 75 -40 to 85DFN2020-3DFN2020-6SC59SIP-3

AH180N Single Open Drain 2.5 to 5.5 8 50 10 10 75 -40 to 85SC59 TSOT23(1)SOT553(1)

AH1801 Single Open Drain 2.5 to 5.5 8 60 10 10 75 -40 to 85DFN2020-3DFN2020-6SC59

AH1802 Single Open Drain 2.5 to 5.5 8 40 10 8 75 -40 to 85DFN2020-3DFN2020-6SC59

AH1803 Single Push / Pull 2.4 to 5.5 8 40 10 10 75 -40 to 85 DFN2020-6SC59

AH1822 Single Open Drain 2.5 to 5.5 8 55 10 8 75 -40 to 85 DFN2015-6DFN3020-6

AH1883 Single Push / Pull 1.65 to 3.3 7 55 6 8 50 -40 to 85 SOT553

AH1884 Dual Push / Pull 1.65 to 3.3 7 55 15 8 50 -40 to 85 SOT553




AH1888Single Standard

Push / Pull 1.65 to 3.3 7 79 35 8 50 -40 to 85DFN2020-3SOT553DFN2020R-3

Single InvertedDual

AH1870 (2) Single Push / Pull 1.6 to 3.3 4 60 20 10 50 -40 to 85 DFN1612-6 TSOT23

AH1872 (2) Dual Push / Pull 1.6 to 3.3 4 60 20 10 50 -40 to 85 DFN1612-6SOT553

AH1891 (2) Dual Push / Pull 1.8 to 3.3 8 40 10 10 50 -40 to 85 WL-CSP0808H5-4

Providing small and low power contactless switchesfor portable and battery powered applications

Product flexibility North or South pole operation Single or Dual outputs with a choice of

open drain or push/pull switchesDesigned for battery and portable applications Micropower operation Low operating supply voltage Ultra small packaging with minimal height

System stability and reliability Superior temperature stability and minimal switch point drift -40C to 85C operating temperature High ESD resilience

(1) New product development: please contact Diodes sales availability.(2) Advanced information: please refer to Diodes for product updates and availability.

Hall Plate Of f s e t C a n c el l i n g

Amp

Hall Plate Of f s e t C a n c el l i n

g

Amp

Vdd

Out1Out1

Latch

Power Switch

LatchOut2

VddGnd

Gnd Gnd

Out2

O u t p u t C on

t r ol l er

TEMER

T H E D I O D E S A

D V A N T A G E


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Latched Hall Effect SwitchesHALL EFFECT SWITCHES

The outputs are switched on with either a North or South pole of sufficient magnetic field strength.The outputs are held until the opposite pole is detected.

D y n a mi c

Of f s e

t

C a n c el l a t i on

Amp

S a m pl e

a n d H

ol d

Amp

L ow-P

a s s F i l t er

Control

Current Limit

Control

Out

GndGnd

Rpu

Vdd

Vout

To All Subcircuits

SYSTEMPOWER

SYSTEMPOWER

PartNumber Output

OutputType

O p e r a t

i n g

V o l t a g e

S u p p

l y C u r r e n t

T y p

i c a l

O u t p u t

C u r r e n t

O p e r a t

i n g

P o i n t B o p

R e l e a s e

P o i n t B r p

T y p

i c a l

H y s t e r

i s i s

R e v e r s e

P r o t e c t

i o n

S h o r t

C i r c u

i t

P r o t e c t

i o n

Z e n e r

C l a m p

G r a

d e T e

m p

R a n g e

PackageOutlinesV mA mA Gauss Gauss Gauss V C

AH173 (1) Single InternalPull-up Resistor 3 to 20 3.5 256080

-60-80 80 No No No

AB -40 to 125

SC59SIP-3

AH175 (1) Single Open Collector 3.5 to 20 3.5 25 6080-60-80 80 Yes No No

AB -40 to 150

SC59SIP-3

AH1751 Single Open Collector 3.5 to 20 3.5 50 70 -70 75 Yes No No - -40 to 125SC59SC59RSIP-3

AH266 (1) Dual Open Collector 4 to 28 5.0 400 70100-70

-100 80 Yes No YesAB -20 to 85 SIP-4

AH276Q (1) Dual Open Collector 3.5 to 20 16.0 4005070

100

-50-70

-10075 Yes No Yes

ABC

-20 to 85 SIP-4

AH342 Dual Push/Pull 4.5 to 28 4.5 10 120 -120 150 Yes No No - -40 to 125 SIP-4

AH373 Single InternalPull-up Resistor 2.5 to 20 2.0 25 60 -60 60 No No No - -40 to 125SC59SIP-3

AH375 Single Open Drain 2.5 to 20 2.0 25 60 -60 60 No No No - -40 to 125 SC59SIP-3

AH3761 Single Open Drain 3 to 28 4.0 50 60 -60 60 Yes Yes Yes - -40 to 125 SC59SIP-3

Product benefits

T H E D I O D E S A D V A N T A G E

Providing small and flexible contactless latched switches forBLDC motors, metering and industrial applications

Product flexibility Single or dual outputs with a choice of open drain or push/pull switches Reverse battery protection

Designed for a wide range of applications Wide operating range of 2.5V to 28V Optimized design for low current operation -40C to 85C/125C/150C operating temperature options

Designed for system stability and reliability High ESD protection and internal protection Superior temperature stability and minimal switch point drift

Pulse Encoder Flow Meter

Hall Sensor

S

Hall Sensor

Fluid Flow

(1) Refer to Diodes for switch point grade availability


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Anisotropic Magnetoresistive (AMR) Sensors

Nickel Temperature Sensors

SPECIAL FUNCTION SENSORS

Anisotropic magnetoresistive (AMR) sensors are created from thin permalloy strips to form a Wheatstone bridge where the outputvoltage is proportional to the magnetic field component Hy. An auxiliary magnetic field, Hx, perpendicular to Hy is necessary to bias thesensor into its linear region. Sensors with a single Wheatstone bridge are available with or without an internal auxiliary magnet for theHx field bias. The number of sensors required is dependant on the application; proximity and magnetic sensing only requires onesensor where as linear and angular position sensing requires two sensors to provide the necessary output signals.

PartNumber

Numberof

Sensors Type

M a x

i m u m

O p e r a t

i n g

V o

l t a g e

T y p

i c a l

B r i

d g e

R e s

i s t a n c e

T y p

i c a l

O u t p u t

V o l t a g e

S e n s i t i v i t y

M a x

i m u m

O f f s e t

v o l t a g e

T y p

i c a l

L e n g t h

R e s o

l u t i o n o r

A n g u

l a r a c c u r a c y

H y o r

H r o t

H x

B i a s

( A u x i

l i a r y

)

M a g n e t M

a x i m u m

O p e r a t i n g

F r e q u e n c y

T e m p

R a n g e

PackageOutlinesV (k ) (mV/V)

(mV/V)/(kA/m) (mV/V) (kA/m) (MHz) C

ZMY20 Single Field Sensor 12 1.7 20 4.7 1 -


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PartNumber Output

O p e r a t i n

g V o

l t a g e

S u p p

l y C u r r e n t

( N o

l o a d

)

A v e r a g e

O u t p u t

D r i v e

C u r r e n t a t

1 0 0 C

P e a k

C u r r e n t

S o f t

- s w

i t c h

R o t o r

L o c k

P r o t e c t

i o n

L o c k

D e t e c t

T o n

R e t r y

D u t y

T o n

/ T o

f f R a t

i o

T a c h o m e t e r (

F G )

S p e e

d C o n t r o

l

O p e r a t i n

g P o i n t

B o p

R e l e a s e

P o i n t

B r p

T e m p

R a n g e

PackageOutlinesV mA mA mA ms Gauss Gauss C

AH5771 H-Bridge 2.5 to 15 3.5 200 400 - Yes 220 10 - - -50 -40 to 100 SIP-4

AH5792 H-Bridge 1.8 to 5 3.5 200300400500 - Yes 215 10 Yes - -50 -40 to 100

SOT553SOT89-5

AH5798 H-Bridge 1.8 to 5.5 5 300250800800 Yes Yes 500 10 Yes - -50 -40 to 105

SOT89-5 TSOT25

AH5799 (1) H-Bridge 1.8 to 5.5 5 300 800 Yes Yes 500 10 Yes PWM -50 -40 to 105SOT89-5 TSOT23-6DFN2020C-6

Single Phase All-In-One Smart Fan and Motor DriversCOOLING FAN AND MOTOR CONTROL

Single phase all-in-one Smart fan and motor drivers integrate the Hall sensor, motor control functions, protection and power driverequired for single coil BLDC motors. Providing an easy to use small, reliable, integrated and cost effective solution.

(1) Advanced information: please refer to Diodes for product updates and availability.

Product benefits


Single chip all-in-one Smart Driver for a cost-effective solution to singlephase BLDC cooling fan and motor control applications

Built-in Hall Effect sensor, motor control functions andoutput H-Bridge drive

Soft-switching to minimize audible switching noise andelectromagnetic interference (EMI)

Provides system and IC protection

Space saving low profile package options

Small and integrated with a minimal component count

Simple and cost effective for low power applications

SYSTEMPOWER Vdd

D1

C1 D2

Power

Hall Sensor

VSS

FrequencyGenerator

Lock Detect Shutdown

and Automatic Re-Start

ControlLogic

Full BridgeDriver

AH5798

SYSTEMPOWER

Rpu

FG

GND

FG

O1

O2

Coil

Typical circuit example - AH5798


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Two Phase All-In-One Smart Fan and Motor DriversCOOLING FAN AND MOTOR CONTROL

The two phase all-in-one Smart fan and motor drivers integrate the Hall sensor, motor control functions, protection and power driverequired for two coil BLDC motors. Provides cost-effective integrated solutions that are compact and reliable.

Product benefits

T H E D I O D E S A D V A N T A G

E

Single chip all-in-one Smart Drivers for a cost-effective solution to twophase BLDC cooling fan and motor control applications

Built-in Hall Effect sensor, motor control functions and output drive

System and IC protection

Wide operating voltage andtemperature range

Small and integrated with aminimal external component count

GND

SYSTEMPOWER

Coil 2

Vdd

GND

DO

FG

DOB

D1

D2

FG

Rpu

D5C1

Coil 1AH288

D3

D4

PartNumber Output

O p e r a t i n

g V o

l t a g e

S u p p

l y C u r r e n t

( N o

l o a d

)

A v e r a g e

O u t p u t

D r i v e

C u r r e n t

P e a k

C u r r e n t

M i n O u t p u t

Z e n e r

B r e a k

d o w n

V o

l t a g e

R o t o r

L o c k

P r o t e c t

i o n

L o c k

D e t e c t

T o n

R e t r y

D u t y

T o n

/ T o

f f

T a c h o m e t e r (

F G )

R o t o r -

l o c k

D e t e c t

( R D )

O p e r a t i n

g P o i n t

B o p

R e l e a s e

P o i n t

B r p

T e m p

R a n g e

PackageOutlinesV mA mA mA V ms Gauss Gauss C

AH284 ComplementaryOpen Drain 3.8 to 20 2 500 700 35 Yes 500 6 - - -60 -40 to 100SIP-4SOT89-5

AH285 ComplementaryOpen Drain 3.8 to 20 2 500 700 35 Yes 500 6 Yes - -60 -40 to 100 SOT89-5

AH286 ComplementaryOpen Drain 3.8 to 20 2 500 700 35 Yes 500 6 - Yes -60 -40 to 100 SOT89-5

AH287 ComplementaryOpen Drain 3.8 to 28 2 400 700 42 Yes 460 6 - - -60 -40 to 100SIP-4SOT89-5

AH288Complementary

Open Drain 3.8 to 28 2 400 700 42 Yes 460 6 Yes - -60 -40 to 100 SOT89-5

AH289 ComplementaryOpen Drain 3.8 to 28 2 400 700 42 Yes 460 6 - Yes -60 -40 to 100 SOT89-5

AH2984 ComplementaryOpen Drain 2.5 to 15 3.5 500 800 24 Yes 250 13 - - -60 -40 to 105SIP-4SOT89-5

AH291 ComplementaryOpen Drain 1.8 to 5.75 2.6 400 70015

(typ) Yes 400 7.5 - - -60 -20 to 100SIP-4SOT89-5


(typ) Yes 400 7.5 Yes - -60 -20 to 100 SOT89-5


(typ) Yes 400 7.5 - Yes -60 -20 to 100 SOT89-5

Typical circuit example - AH288


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Single Phase BLDC Fan and Motor Control Pre-driversCOOLING FAN AND MOTOR CONTROL

The ZXBM single phase pre-driver family provides a flexible, high performance and feature rich solution for BLDC motor, fan and blowerapplications. An internally generated Hall bias allows direct connection to an external Hall element catering to different sensitivityrequirements. The internal output drive allows the external power stage to be a full bridge, two half bridges or a discrete solution usingBipolar transistors or MOSFETs to achieve higher power performance over a variety of supply ranges.

(1) Advanced information: please refer to Diodes for product updates and availability.

Part Number Output

O p e r a t

i n g

V o l t a g e

S u p p

l y C u r r e n t

( N o

l o a d

)

H i g h

- s i d e

S w i t c h

D r i v e

S i n

k C u r r e n t

( m A )

L o w - s

i d e

S w i t c h

D r i v e

S o u r c e / S

i n k

C u r r e n t

( m A )

R e f e r e n c e

V o

l t a g e

O u t p u t

R o t o r

L o c k

P r o t e c t

i o n

T a c h o m e t e r

( F G )

R o t o r -

l o c k

D e t e c t (

R D )

S p e e

d C o n t r o

l

M i n S p e e

d

A d j u s t a b

l e C u r r e n t

L i m

i t

T a i l - E n d C u r r e n t C o n t r o

l

T e m p

R a n g e

PackageOutlinesV mA mA mA V C

ZXBM1004

Complementaryhigh and low-sideoutput drive for

external H-Bridge

4.7 to 18 6 100 80/16 3 Yes Yes Yes Yes Yes - - -40 to 110 QSOP16

ZXBM1015


external H-Bridge

4.7 to 18 11 100 80/32 3 Yes Yes Yes Yes Yes Yes - -40 to 110 TSSOP20

ZXBM1016


external H-Bridge

6.7 to 18 15 100 80/80 5 Yes Yes Yes Yes Yes Yes -40 to 85 TSSOP20

ZXBM1017


external H-Bridge

4.7 to 18 11 100 80/32 5 Yes Yes Yes Yes Yes Yes - -40 to 110 TSSOP20

ZXBM1018 (1)Complementary

high and low-sideoutput drive for

external H-Bridge

6.7 to 18 11 100 80/16 5 Yes Yes Yes Yes Yes - -40 to 110 TSSOP20

Product benefits


Highly featured motor control pre-drivers for a high performance andreliable solution, ideal for single phase BLDC cooling fan and advancedfeature-set motor control applications with various voltage and currentrequirements

Built-in motor control functions and output drive for external H-Bridge

Speed control via DC or PWM signal with minimum speed setting

Adjustable motor current limit

Tail-end current control significantly minimizes audibleswitching noise and electro magnetic interference

Wide operating temperature range


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sensors and motor control pdf

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