Diodes AH183 User Manual

AH182/AH183

LOW POWER HALL EFFECT SWITCH

Features

• Micropower operation

• 2.5V to 5.5V battery operation

• Offset Canceling Technology

• Superior temperature stability

• Extremely Low Switch-Point Drift

• Insensitive to Physical Stress

• -40°C to 85°C operating temperature

• Lead Free packages: SIP-3L and SC59 (Commonly

known as SOT23 in Asia)

• SIP-3L and SC59: Available in “Green” Molding
Compound (No Br, Sb)

• Lead Free Finish / RoHS Compliant (Note 1)

Applications

• Cover detector

• Speed measurement

• Home safety

General Description

AH182/AH183 is a three-terminal Hall effect sensor device with
an output driver, mainly designed for battery–operation,
hand-held equipment (such as cellular and cordless phones, and
PDA’s) The total operation power is down to 15uW in the

2.75V supply.
The south pole of sufficient strength will turn the output on in
SIP-3L but the north pole of sufficient strength will turn the output
on in SC59 package. The output will be turned off under no
magnetic field.
While the magnetic flux density (B) is larger than operation point

(Bop), the output will be turned on (low), the output is held until
B is lower than the release point (Brp), then turned off. The

difference between AH182 and AH183 is that the former
consumes less power than that of the latter in the Hall sensor
operation.

Typical Circuit *

* C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF~100nF.

is the pull-up resistor, the recommended resistance is 10Kohm~100Kohm.

R

L

2.5~5.5V

R

L

C

Output

AH182/AH183

Gnd

AH182/AH183 Rev. 8 1 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

Ordering Information

AH182/AH183

LOW POWER HALL EFFECT SWITCH

AH182 / AH183 - X X - X

Packing

A : Ammo Box (Note 3)P : SIP-3L
B : Bulk (Note 4)

7 : Tape & Reel

Part

Quantity

Suffix

Part

Number

Suffix

W : SC59

(Note 2)

Package

Quantity

Bulk 7” Tape and Reel Ammo Box

Number

Suffix

CMOS Hall-effect Switch

Device

AH182/AH183-PL-A P SIP-3L NA NA NA NA 4000/Box -A
AH182/AH183-PL-B P SIP-3L 1000 -B NA NA NA NA
AH182/AH183-PG-A P SIP-3L NA NA NA NA 4000/Box -A
AH182/AH183-PG-B P SIP-3L 1000 -B NA NA NA NA
AH182/AH183-WL-7 W SC59 NA NA 3000/Tape & Reel -7 NA NA
AH182/AH183-WG-7 W SC59 NA NA 3000/Tape & Reel -7 NA NA

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.

3. Ammo Box is for SIP-3L Spread Lead.

4. Bulk is for SIP-3L Straight Lead.

Package

Code

Packaging

L : Lead Free

G : Green

Part

Lead Free

Quantity

Number

Pin Assignments

(1) SIP-3L (2) SC59 (Commonly known as SOT23 in Asia)

(Top view)

(Top view)

3.

Output

3. Output

2. GND

1. Vdd

GND 2.

1. Vdd

Pin Description

Pin Name P/I/O Pi n # Description

Vdd P/I 1 Power Supply Input

GND P 2 Ground

Output O 3 Output Pin

AH182/AH183 Rev. 8 2 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

)

S

Block Diagram

1

Vdd

Reg./Switch

Hall Plate

AH182/AH183

LOW POWER HALL EFFECT SWITCH

Output

Offset Cancelling

Logical

Amp

3

Gnd

2

Absolute Maximum Ratings (T

Symbol Parameter Rating Unit

Vdd Supply Voltage 7 V

B Magnetic Flux Density Unlimited

I

Output current 10 mA

OUT

PD

T

J(MAX

TST Storage Temperature Range -65 to +150

Power Dissipation

Maximum Junction Temperature 150

Recommended Operating Conditions (T

Symbol Parameter Conditions Min

Vdd

TA Operating Ambient Temperature Operating -40

upply Voltage Operating 2.5 5.5 V

= 25°C)

A

SIP-3L 550 mW

SC59 230 mW

= 25°C)

A

Max

85

°C
°C

Unit

°C

AH182/AH183 Rev. 8 3 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

O

O

S

A

AH182/AH183

LOW POWER HALL EFFECT SWITCH

Electrical Characteristics (T

Symbol Characteristic Conditions Min Typ. Max Unit

V

OUT

I

off

Idd(en)

Idd(dis) Chip disable - - 8.0 uA
Idd(avg) AH182: average supply current - 5 10 uA
Idd(avg) AH183: average supply current - 280 500 uA
Tawake

Tperiod Period

D.C. Duty Cycle

utput On Voltage I
utput Leakage Current V

upply Current

wake Time - 50 100 µs

= 25°C, Vdd = 3V )

A

= 1mA - 0.1 0.3 V

OUT

-

= 5.5V, B < Brp

OUT

Chip enable - - 2.0 mA

AH182 - 50 100 ms
AH183 - 200 400 us
AH182 - 0.1 - %
AH183 - 25 - %

<0.1

1 µA

Test Circuit

182/183

Pull up resistor

1

3V

3

2

(Recommended: 50kohm)

AH182/AH183 Rev. 8 4 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

AH182/AH183

LOW POWER HALL EFFECT SWITCH

Magnetic Characteristics (T

Symbol Parameter Min Typ. Max Unit

Bops(south pole to brand side) Operation Poi n t - 40 60

Brps(south pole to brand side) Release Point 10 30 -

Bhy(

Notes: 5. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering.

)

BrpxBopx −

= 25°C, Vdd = 3V, Note 5)

A

Hysteresis - 10 -

(1mT = 10 Gauss)

Output

S

Marking side

N

(SC59)

S

N

(SIP-3L)

Marking side

Turn off

( Output Voltage )

Vsat

( off-state )

B

hy

Brp Bop0

Vdd

Turn on

(on-state)

Gauss

( Magnetic flux density B)

AH182/AH183 Rev. 8 5 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

Performance Characteristics

(1) SIP-3L

TA (°C)

PD (mW) 550 440 396 352 308 286 264 242 220

TA (°C)

PD (mW) 198 176 154 132 110 88 66 44 0

P

(mW)

D

600
500
400
300
200
100

0

0 25 50 75 100 125 150

(2) SC59 (Commonly known as SOT23 in Asia)

TA (°C)

PD (mW)

25 50 60 70 80 85 90 100 110 120 130 140 150

230 184 166 147 129 120 110 92 74 55 37 18 0

P

(mW )

D

25 50 60 70 80 85 90 95 100

105 110 115 120 125 130 135 140 150

Po wer D iss i pa ti on Cu r ve

P ower Dissipation Curve

AH182/AH183

LOW POWER HALL EFFECT SWITCH

85-40

TA (oC)

300

200

100

0

0 25 50 75 100 125 150

85-40

TA (oC)

AH182/AH183 Rev. 8 6 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

Marking Information

(1) SIP-3L

Part Number

( Top View )

182/183

Y

WW X

AH182/AH183

LOW POWER HALL EFFECT SWITCH

: Year : 0~9

Y

WW

: Week : 01~52, "52" represents

52 and 53 week

: Internal Code : A~Z : Green

X

a~z : Lead Free

(2) SC59 (Commonly known as SOT23 in Asia)

( Top View )

XX : Identification code

Y

: Year 0~9

W

XX Y W

X

: Week : A~Z : 1~26 week;

a~z : 27~52 week; z represents
52 and 53 week

X

: A~Z : Green

a~z : Lead Free

Part Number Package Identification Code

AH182 SC59 K2
AH183 SC59 K3

AH182/AH183 Rev. 8 7 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

Package Information (All Dimensions in mm)

(1) Package Type: SIP-3L for Bulk only

0.51mm
NOM

AH182/AH183

LOW POWER HALL EFFECT SWITCH

2.00mm

1.15mm

BRANDED
SURFACE

Active Area Depth

Package Dimension

123

Sensor Location

AH182/AH183 Rev. 8 8 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

Package Information (Continued)

(2) Package Type: SIP-3L for Ammo Pack-only

AH182/AH183

LOW POWER HALL EFFECT SWITCH

(3) Package Type: SC59 (commonly known as SOT23 in Asia)

O

1.00/

1.30

0.013/0.10

0.35/0.50

TOP VIEW

1.90

2.90/3.10

0.95

2.70/

1.50/

1.70

3.00

0.35/0.55

0.10/0.20

0O/8

AH182/AH183 Rev. 8 9 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated

AH182/AH183

LOW POWER HALL EFFECT SWITCH

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subsidi aries reserve t he right to make modific ations, enhancem ents, improvemen ts, correction s or other
changes without further notic e to this docume nt and any product des cri bed herein. Diodes Inc orporat ed does not assum e any liabi lity
arising out of the applicatio n or use of this document or any produc t described herei n; neither d oes Diodes Incorporat ed convey any
license under its patent or trademark rights , nor the rights of oth ers. Any Customer or user of this docume nt or products described
herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represent ed on Diodes Inc o rpor ated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liabil ity whatsoever in respect of any produc ts purchas ed through unauthorized
sales channel.
Should Customers purchase or use Di odes Incorporated products for any unint ended or unauthorized application, Cust omers shall
indemnify and hold Diodes Incorpora ted and its repres entatives harmle ss against all claims, damages, expenses, and att orney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unint end ed or unau t h ori ze d application.

Products described herein may be covered by one or m ore United Stat es, international o r foreign patents p ending. Product names
and markings noted herein may also be covered by one or more Uni ted S tates, international or foreign trademarks.

Diodes Incorporated product s are specif ically not aut horized fo r use as critic al component s in life support devic es or systems without
the express written approval of t he Chief Executi ve Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or sys tems which:

1. are intended to implant into the body, or

2. support or sustain life and whose f ai l u re to per f o rm when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any c omponent in a lif e support devi ce or system whose failure t o perform can be reas onably expect ed

to cause the failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have al l necessary expertise in t he safety and regulatory ramific ations of their life support dev ices or
systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements
concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
Customers must fully indemni fy Diodes Incorporated and its representat ives against any damages arising out of the use of Di odes
Incorporated products in such safety-critical, life support devices or systems.

Copyright © 2009, Diodes Incorporat ed

www.diodes.com

IMPORTANT NOTICE

LIFE SUPPORT

AH182/AH183 Rev. 8 10 of 10 NOVEMBER 2009

DS31024

www.diodes.com © Diodes Incorporated