HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

610

THRU

640

HALL-EFFECT SUBASSEMBLIES

Typical Functional Block Diagram

(ATS612JSB shown)

UVLO

SUPPLY

REG

MAGNET

OUTPUT

Dwg. FH-014-1

GROUND

CAPACITOR

POWER-ON

LOGIC

TRACK &

HOLD

GAIN

REFERENCE

GENERATOR

CURRENT

LIMIT

The ATS610 through ATS640 series of devices are

optimized Hall-effect IC/magnet combinations that

provide complex sensing functions in small packages. See

page 11 for a complete listing of devices.

Also, go to www.allegromicro.com/techpub/

tipsats.pdf for Application Notes for the ATS63x Subas-
sembly Line.

Dwg. AH-006-5

Typical Features

Single-Chip Sensing IC for High Reliability

Optimized Magnetic Circuit

Small Mechanical Size

Wide Operating Voltage Range

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

3056

THRU

3060

HALL-EFFECT GEARTOOTH (

DUAL

ELEMENT

) SENSORS

Part

Max

Min

Numbers

Operate Release*

Hysteresis

Features

A3056EU

150 G

-150 G

15-90 G

zero speed

A3056LU

A3058EU

250 G

-250 G

150-250 G zero speed

A3058LU

UGN3059KA 100 G

-100 G

typ 130 G

UGS3059KA

UGN3060KA 35 G

-35 G

typ 30 G

UGS3060KA

Magnetic characteristics are at T

= +25

* Algebraic convention, where -150 G is less than 0 G.
Also, see 3421 and 3422 Hall-effect direction detection
sensors.

Benefits

s Large Effective Air Gap
s Wide Operating Temperature Range
s Operation from Unregulated

4.5 V to 24 V Supply

s High-Speed Operation
s Output Compatible With

All Logic Families

s Reverse Battery Protection
s Resistant to Physical Stress

Typical Functional Block Diagram

A3056EU

OUTPUT

Dwg. FH-010

SUPPLY

GROUND

REG

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

Part

Max

Min

Supply

Reverse

Output

Number

Operate

Release

Hysteresis

Voltage

Protection

Current

Features

A3121x

450 G

125 G

70-140 G

4.5-24 V

yes

20 mA

A3122x

400 G

140 G

70-140 G

4.5-24 V

yes

20 mA

A3123x

440 G

180 G

70-140 G

4.5-24 V

yes

20 mA

A3141x

160 G

10 G

20-80 G

4.5-24 V

yes

20 mA

A3142x

230 G

75 G

30-80 G

4.5-24 V

yes

20 mA

A3143x

340 G

165 G

30-80 G

4.5-24 V

yes

20 mA

A3144x

350 G

50 G

min 20 G

4.5-24 V

yes

20 mA

A3161x

160 G

30 G

min 5 G

3.5-25 V

yes

3.5/15 mA

2-wire

UGN3235K

175 G

25 G

15-100 G

4.5-24 V

20 mA

2 outputs

-175 G

-25 G

15-100 G

4.5-24 V

20 mA

A3240x

50 G

5 G

typ 10 G

4.2-24 V

yes

20 mA

stabilized

A3361x

125 G

40 G

5-30 G

3.5-24 V

6.5/14.5 mA

2-wire

stabilized

inverted 3362

A3362x

125 G

40 G

5-30 G

3.5-24 V

6.5/14.5 mA

2-wire

stabilized

Magnetic characteristics are at T

= +25

"x" is additional characters to indicate operating temperature range and package style.
* Algebraic convention, where -50 G is less than 0 G.
See also, 3150 programmable, chopper-stabilized Hall-effect switch,

3209 and 3210 micropower, ultra-sensitive Hall-effect switches, and
5140 protected, PowerHall® sensor.

3121

THRU

3123

AND

OTHER

HALL-EFFECT SWITCHES

REG.

Dwg. FH-005-2

GROUND

OUTPUT

Typical Functional Block Diagrams

A3121ELL

A3240ELH

Dwg. FH-020-1

GROUND

OUTPUT

DYNAMIC

OFFSET CANCELLATION

SUPPLY

CONTROL

CURRENT

LIMIT

REG.

SAMPLE

& HOLD

LOW-PASS

FILTER

TO ALL

SUBCIRCUITS

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

3132

THRU

3134

AND

OTHER

HALL-EFFECT LATCHES & BIPOLAR SWITCHES

Part

Max

Min

Supply

Reverse

Output

Number

Operate

Release*

Hysteresis

Voltage

Protection

Current

Features

UGx3132x

95 G

-95 G

min 30 G

4.5-24 V

yes

20 mA

bipolar

UGx3133x

75 G

-75 G

min 30 G

4.5-24 V

yes

20 mA

bipolar

A3134x

50 G

-50 G*

10-50 G

3.8-24 V

yes

20 mA

bipolar

UGN3175x

170 G

-170 G

min 100 G

4.5-18 V

yes

10 mA

UGN3177x

150 G

-150 G

min 100 G

4.5-18 V

yes

10 mA

A3185x

270 G

-270 G

340-540 G

3.8-24 V

yes

20 mA

A3187x

150 G

-150 G

100-300 G

3.8-24 V

yes

20 mA

A3188x

180 G

-180 G

200-360 G

3.8-24 V

yes

20 mA

A3189x

230 G

-230 G

100-460 G

3.8-24 V

yes

20 mA

A3195x

160 G

-160 G

min 130 G

3.8-26 V

yes

-20 to +5 mA

protected

A3197x

160 G

-160 G

min 130 G

4.5-26 V

yes

30 mA

protected

A3260x

30 G

-30 G

typ 20 G

3.5-24 V

yes

6.5/14.5 mA

bipolar, 2-wire
stabilized

UGN3275K

250 G

-250 G

min 100 G

4.5-24 V

20 mA

complementary
outputs

A3280x

40 G

-40 G

typ 45 G

4.2-24 V

yes

20 mA

stabilzed

A3281x

90 G

-90 G

typ 100 G

4.2-24 V

yes

20 mA

stabilzed

A3283x

180 G

-180 G

typ 300 G

4.2-24 V

yes

20 mA

stabilzed

Magnetic characteristics are at T

= +25

"x" is additional character(s) to indicate package style and/or operating temperature range.
*Algebraic convention, where -150 G is less than 0 G.

REG.

Dwg. FH-005-2

GROUND

OUTPUT

Typical Functional Block Diagram

(UGN3175UA shown)

Latches will not switch on removal of the mag-

netic field; bipolar switches may switch on removal
of the magnetic field but require field reversal for
reliable operation over the operating temperature
range.

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

3209, 3210,

AND

3212

MICROPOWER, ULTRA-SENSITIVE HALL-EFFECT SWITCHES

Features
s Micropower Operation
s Operate with North or South Pole
s 2.5 V to 3.5 V Battery Operation
s Chopper Stabilized

Superior Temperature Stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress

s Solid-State Reliability
s Small Size
s Easily Manufacturable with

Magnet Pole Independence

These Hall-effect switches are ultra-sensitive, pole

independent, Hall-effect switches with a latched
digital output. They are especially suited for opera-
tion in battery-operated, hand-held equipment such as
cellular and cordless telephones, pagers, and palmtop
computers. 2.5 to 3.5 volt operation and a unique
clocking scheme reduce the average operating power
requirements to typically 15

W for the A3212,

W for the A3210, or 400

W for the A3209!

Unlike other Hall-effect switches, either a north or

south pole of sufficient strength will turn the output
on; in the absence of a magnetic field, the output is
off. The polarity independence and minimal power
requirement allows these devices to easily replace
reed switches for superior reliability and ease of
manufacturing, while eliminating the requirement for
signal conditioning.

Part Numbers: A3209ELH, A3209EUA,
A3210ELH, A3210EUA, A3212ELH, A3212EUA,
A3212LLH, and A3212LUA

N E W

TIMING

LOGIC

Dwg. FH-020-5

LATCH

GROUND

OUTPUT

SUPPLY

DYNAMIC

OFFSET CANCELLATION

SWITCH

SAMPLE

& HOLD

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

3421

AND

3422

HALL-EFFECT DIRECTION-DETECTION SENSORS

Features

Internal Direction-Decoding Circuitry

Two Matched Hall Latches On A Single Substrate

Superior Temperature Stability

4.5 V to 18 V Operation
Electrically Defined Power-On State
Under-Voltage Lockout

These monolithic integrated circuits contain two

independent Hall-effect latches whose digital outputs
are internally coupled to CMOS logic circuitry that
decodes signal speed and direction. Extremely low-
drift BiCMOS circuitry is used for the amplifiers to
ensure symmetry between the two latches so that
signal quadrature can be maintained. An on-chip
voltage regulator allows the use of these devices from
a 4.5 V to 18 V supply. These highly sensitive,
temperature-stable, magnetic transducers are ideal for
use in digital-encoder systems in the harsh environ-
ments of automotive or industrial applications. The
A3421xKA is a high-hysteresis device designed for
low-resolution pulse counting while the A3422xKA is
a high-sensitivity device optimized for use with high-
density magnets. Both devices have standard open-
collector outputs; the logic operation of both devices
is the same.

Functional Block Diagram

SPEED

DIRECTION

E1 OUTPUT

Dwg. FH-018

GROUND

LOGIC

SUPPLY

POWER-ON

LOGIC

REG

UVLO

Part

Max

Min

Numbers

Operate

Release*

Hysteresis

A3421EKA

280 G

-280 G

min 260 G

A3421LKA

A3422EKA

75 G

-75 G

min 10 G

A3422LKA

*Algebraic convention, where -75 G is less than 0 G.

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

Dwg. FH-016A

GROUND

OUTPUT

DYNAMIC

OFFSET CANCELLATION

LOW-PASS

FILTER

SUPPLY

Vcc

Vcc/2

Dwg. FH-007

GROUND

OUTPUT

REG.

3503

THRU

3518

RATIOMETRIC, LINEAR HALL-EFFECT SENSORS

Part

Sensitivity

Supply

Number

mV/G

Voltage

Features

UGN3503x

1.3

4.5-6 V

-20

C to +85

A3515x

5.0

4.5-5.5 V

-40

C to +150

C, chopper stabilized, improved stability

A3516x

2.5

4.5-5.5 V

-40

C to +150

C, chopper stabilized, improved stability

A3517x

5.0

4.5-5.5 V

-40

C to +150

C, chopper stabilized

A3518x

2.5

4.5-5.5 V

-40

C to +150

C, chopper stabilized

Magnetic characteristics are at T

= +25

"x" is additional character(s) to indicate package style and/or operating temperature range.

Ratiometric, linear Hall-effect sensors do not include internal voltage regulators. See low dropout regulators at
power conversion/power management.

Functional Block Diagrams

UGN3503LT and UGN3503UA

A3515LUA thru A3518LUA

HALL-EFFECT SENSORS

A Sanken Company

www.allegromicro.com

5140

PROTECTED P

OWER

ALL

SENSOR LAMP/SOLENOID DRIVER

Features

s Magnetically Actuated Power Switch
s Temperature-Compensated Switch Points

s High Current-Sink Capability

300 mA Continuous
900 mA Peak Current Limit

s Output Short-Circuit Protection

s 4.5 V to 24 V Operation
s Low Quiescent Standby Current

s Linear Thermal Limiting

s Automotive Temperature Range

-40

C to +85

C, Operating

s Internal Inductive Flyback/Clamp Diode Protection

s Reverse Battery Protection
s Low-Profile 4-Pin Mini-SIP

Part Number: UGQ5140K

REG.

REV. BATTERY
PROTECTION

Dwg. FH-001

DIODE

OUTPUT

GROUND

<<1

THERMAL

LIMIT

CURRENT

LIMIT

This unipolar Hall effect switch is a monolithic

integrated circuit designed for magnetic actuation of low-
power incandescent lamps or inductive loads such as
relays or solenoids. Included on chip is a Darlington
power output that is capable of continuously sinking in
excess of 300 mA. Internal protection circuitry limits
surge (lamp turn-ON) or fault currents to approximately
900 mA. A sensitive magnetic threshold allows the device
to be used in conjunction with inexpensive magnets or in
applications that require relatively large operating dis-
tances.

Each sensor/driver includes a magnetic sensing Hall

voltage generator, operational amplifier, Schmitt trigger,
voltage regulator, and an open-collector, high-gain
Darlington power output stage. The regulator allows use
of the device with supply voltages of 4.5 V to 28 V. On-
chip compensation circuitry stabilizes switch-point perfor-
mance over temperature.

Functional Block Diagram

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ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: ATS536