Diodes AH1806 User Manual

A

HIGH SENSIVITY MICROPOWER

OMNIPOLAR HALL-EFFECT SWITCH

Description

The AH1806 is a high-sensitivity, micro power Omnipolar Hall Effect

switch IC designed for portable and battery powered consumer

equipment such as cellular phones, PDA’s and portable PC’s to home

appliance and industrial applications such as smart meter magnetic

tamper detection. Based on two sensitive Hall Effect plates and a

copper stabilized architecture the AH1806 provides a reliable solution

over the whole operating range. To support portable and battery

powered equipment the design has been optimized to operate over the

supply range of 2.5V to 5.5V and consumes only 24µW with a supply

of 3V.

The single open drain output can switched on with either a North or

South pole of sufficient field strength. When the magnetic flux density

(B) perpendicular to the package is larger than operate point (Bop) the

output is switched on (pulled low). The output is turned off when

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B becomes lower than the release point (Brp). The output will remain

off when there is no magnetic field.

Features

• Omnipolar (North or South Pole) Operation

• High Sensitivity

• Single Open Drain Output

• Micropower Operation

• 2.5V to 5.5V Operating Range

• Chopper Stabilized Design Provides:

 Superior Temperature Stability

 Minimal Switch Point Drift

 Enhanced Immunity to Stress

• Good RF Noise Immunity

• -40°C to +85°C Operating Temperature

• ESD (HBM) > 6KV

• Small Low Profile SOT553 and Industry Standard SC59 Packages

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.

Pin Assignments

(Top View)

SC59

(Top View)

SOT553

Applications

• Cover Switch in Clam-Shell or Slide Type Cellular Phones

• Display Switch for Portable PCs

• On/Off Switch for PDAs and Digital Cameras

• Contact-Less Switch in Consumer Products

• Smart-Emeters

• Position, Proximity and Level Detection Contact-Less Switch in

Home Appliances and Industrial Applications

H1806

AH1806

Document number: DS36104 Rev. 4 - 2

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Typical Applications Circuit

H1806

Note: 4. C R

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

IN

is the pull-up resistor, the recommended resistance is 10kΩ to 100kΩ.

L

Pin Descriptions

Package: SC59

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Number

1

2 GND Ground

3 OUTPUT Output

Package: SOT553

Number

1 NC No Connection (Note 5)

2 GND Ground

3 NC No Connection (Note 5)

4

5 OUTPUT Output

Note: 5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground.

Name

V

DD

Name

V

DD

Power Supply Input

Functional Block Diagram

Function

AH1806

Document number: DS36104 Rev. 4 - 2

Cancellation

Offset

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H1806

Absolute Maximum Ratings (Note 6) @T

= +25°C, unless otherwise specified.)

A

Symbol Characteristics Values Unit

VDD

V

OUT

V

DD REV

V

OUT_REV

I

OUTPUT

Supply Voltage (Note 7) 7 V

Output Pin Voltage (Note 7) 7 V

Reverse Supply Voltage -0.3 V

Reverse Output Pin Voltage -0.3 V

Output current (source and sink) 2.5 mA

B Magnetic Flux Density Unlimited

PD

Package Power Dissipation SC59 and SOT553 230 mW

Ts Storage Temperature Range -65 to +150 °C

TJ

Maximum Junction Temperature 150 °C

ESD HBM Human Body Model ESD capability 6 kV

Notes: 6. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time.

7. The absolute maximum V device at the absolute maximum rated conditions for any period of time.

of 7V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the

DD

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Recommended Operating Conditions (@T

= +25°C, unless otherwise specified.)

A

Symbol Characteristic Conditions Rating Unit

VDD

V

OUT_MAX

TA

Supply Voltage Operating 2.5 to 5.5 V

Maximum Output Pin Voltage Operating 5.5 V

Operating Temperature Range Operating -40 to +85 °C

Electrical Characteristics (@T

= +25°C, V

A

= 3V, unless otherwise specified.)

DD

Symbol Characteristic Conditions Min Typ Max Unit

V

Output On Voltage (VOL) I

OUT_ON

Ioff Output Leakage Current

IDD(awake)

Supply Current

IDD(sleep)

IDD(avg)

Average Supply Current

= 1mA

OUT

V

= 5.5V, Output off

OUT

During ‘awake’ period,

= 25°C, VDD = 3V

T

A

During ‘awake’ period,

= -40 to +85°C, VDD = 2.5V to 5.5V

T

A

During ‘sleep’ period, T

= +25°C, VDD = 3V

A

During ‘sleep’ period, T

= -40 to +85°C, VDD = 2.5V to 5.5V

A

= +25°C, VDD = 3V

T

A

TA = -40 to +85°C, VDD = 2.5V to 5.5V

— 0.1 0.3 V

— < 0.1 1 µA

— 3 6 mA

— 3 12 mA

— 5 10 µA

— — 28 µA

— 8 16 µA

— — 40 µA

Tawake Awake Time (Note 8) — 75 125 µs

Tperiod Period (Note 8) — 75 125 ms

D.C. Duty Cycle — 0.1 — %

Note: 8. When power is initially turned on, the operating VDD must be within its correct operating range (2.5V to 5.5V) to guaranteed the output sampling. The output state is valid after the second operating cycle (typical 150ms).

AH1806

Document number: DS36104 Rev. 4 - 2

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Magnetic Characteristics (Note 9 & 10) (@T

Symbol Characteristic Conditions Min Typ Max Unit

Bops (south pole to part marking side) Operation Point

Bopn (north pole to part marking side) Operation Point

Brps (south pole to part marking side) Release Point

Brpn (north pole to part marking side) Release Point

Bhy (|Bopx|-|Brpx|) Hysteresis (Note 11) 5 10 —

Notes: 9. Typical data is at TA = +25°C, VDD = 3V, and for design information only.

10. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.

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11. Maximum and minimum hysteresis is guaranteed by design and characterization.

= +25°C, VDD = 3V, unless otherwise specified.)

A

15 30 45

VDD = 2.5V to 5.5V

-45 -30 -15

VDD = 2.5V to 5.5V

10 20 40

VDD = 2.5V to 5.5V

-40 -20 -10

VDD = 2.5V to 5.5V

10 30 45

-45 -30 -10

4 20 40

-40 -20 -4

H1806

(1mT=10 Gauss)

Gauss

AH1806

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Thermal Performance Characteristics

(1) Package Type: SC59 and SOT553

T

(°C)

A

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

PD (mW)

300

200

Power Dissipation Curve

H1806

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100

0

0 25 50 75 100 125 150

-40

85

T

(oC)

A

AH1806

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Ordering Information

Part Number Package Code Packaging

AH1806-W-7 W SC59 3000/Tape & Reel -7

AH1806-Z-7 Z SOT553 3000/Tape & Reel -7

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Marking Information

(1) Package Type: SC59

H1806

7” Tape and Reel

Quantity Part Number Suffix

(2) Package Type: SOT553

Part Number Package Identification Code

AH1806 SC59 H6

( Top View )

: Identification Code

XX

Y : Year : 0 to 9

W

XX Y W X

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

a to z : 27~52 week; z represents

52 and 53 week

X

: Internal code

Part Number Package Identification Code

AH1806 SOT553 H6

AH1806

Document number: DS36104 Rev. 4 - 2

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Package Outline Dimensions (All dimensions in mm.)

Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.

(1) Package Type: SC59

A

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G

H

K

J

D

C

B

N

L

M

Dim Min Max Typ

A 0.35 0.50 0.38 B 1.50 1.70 1.60 C 2.70 3.00 2.80 D - - 0.95 G - - 1.90 H 2.90 3.10 3.00 J 0.013 0.10 0.05 K 1.00 1.30 1.10 L 0.35 0.55 0.40 M 0.10 0.20 0.15 N 0.70 0.80 0.75 α

All Dimensions in mm

SC59

0° 8° -

H1806

AH1806

Document number: DS36104 Rev. 4 - 2

Sensor Location

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Package Outline Dimensions (All dimensions in mm.)

Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.

(2) Package Type: SOT553

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E1

E1/2

R0.1 MAX.

TYP.

D

e1

e

F

E/2

b (5x)

a

A

°

7

TYP.

E

c

H1806

Dim Min Max Typ

A 0.55 0.62 0.60 b 0.15 0.30 0.20 c 0.10 0.18 0.15

L (5x)

D 1.50 1.70 1.60 E 1.55 1.70 1.60

E1 1.10 1.25 1.20

e 0.50 BSC

e1 1.00 BSC

F 0.00 0.10 –– L 0.10 0.30 0.20 a 6° 8° 7°

SOT553

All Dimensions in mm

AH1806

Document number: DS36104 Rev. 4 - 2

Sensor Location

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Suggested Pad Layout

Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.

(1) Package Type: SC59

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(2) Package Type: SOT553

Y

Z

X E

C2

G

Z

Y

X

C

C1

H1806

Dimensions Value (in mm)

Z 3.4 X 0.8 Y 1.0 C 2.4 E 1.35

Dimensions Value (in mm)

Z 2.2 G 1.2 X 0.375 Y 0.5

C1 1.7 C2 0.5

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H1806

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 subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document 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 represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.

This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated.

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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

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

1. are intended to implant into the body, or

labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices 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 indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.

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2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the

IMPORTANT NOTICE

LIFE SUPPORT

AH1806

Document number: DS36104 Rev. 4 - 2

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Diodes AH1806 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual