Diodes AH1810 User Manual

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HIGH SENSIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Description

The AH1810 is a high sensitivity micropower Omnipolar Hall effect switch IC with internal pull up and pull down capability. Designed for portable and battery powered equipment such as cellular phones and portable PCs, the average supply current is only 6µA at 3V. To support potable equipment the AH1810 can operate over the supply range of 2.3V to 3.6V and uses a hibernating clocking system to minimize the power consumption.

The output is activated with either a North or South pole of sufficient magnetic field strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop), the output will be turned on (pulled low). The output is turned off when B becomes lower than the release point (Brp). The output will remain off when there is no magnetic field.

H1810

Pin Assignments

Features

NEW PRODUCT

 Omnipolar Operation (North or South Pole)  Supply Voltage of 2.3V to 3.6V  High Sensitivity  Micropower Operation  Chopper Stabilized Design Provides:

 Superior Temperature Stability  Extremely Low Switch-Point Drift  Enhanced Immunity to Stress

 No External Pull up Resistor Required  Good RF Noise Immunity  -40°C to +85°C Operating Temperature  Industry Standard SC59 Package  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.

Applications

 Cover or Display Switch in Portable PCs  Open and Close Detect for Cellular Phones  Holster Detect for Cellular Phones and Tablet PCs  Digital Still and Video Cameras  Contact-Less Switches

Typical Applications Circuit (Note 4)

Note: 4. C

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

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Pin Descriptions

Package: SC59

Number

1 VDD Power Supply Input 2 GND Ground Pin 3 OUTPUT Output Pin

Name

Functional Block Diagram

H1810

Function

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AH1810

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H1810

Absolute Maximum Ratings (Note 5) @T

Symbol Characteristics Values Unit

VDD Supply Voltage (Note 6) 6 V

DD_REV

OUTPUT

B Magnetic Flux Density Unlimited PD Package Power Dissipation SC59 270 mW Ts Storage Temperature Range +150 °C

TJ Maximum Junction Temperature 150 °C

ESD HBM Human Body Model ESD capability 8 kV

Notes: 5. 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.

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

NEW PRODUCT

Recommended Operating Conditions (@T

Symbol Characteristic Conditions Rating Unit

VDD Supply Voltage Operating 2.3 to 3.6 V

TA Operating Temperature Range Operating -40 to +85 °C

Electrical Characteristics (@T

Symbol Characteristic Conditions Min Typ Max Unit

VOL Output Low Voltage (on) I VOH Output High Voltage (off) I Ioff Output Leakage Current Vout=3.6V, B < Brps

IDD(awake)

(sleep) During ‘sleep’ period — 2.5 — µA

IDD(avg) IDD(avg) VDD = 3.6V Tawake Awake Active Pulse Width (Note 7)

Tperiod Awake Period (Note 7)

D.C. Duty Cycle

Note: 7. When power is initially turned on, the operating VDD (1.6V to 3.6V) must be applied to guaranteed the output sampling. The output state is valid after the second operating cycle (typical 100ms).

Reverse Supply Voltage -0.3 V Output current (source and sink) 2 mA

of 6V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the

= +25°C, VDD = 2.3V to 3.6V, unless otherwise specified.)

Supply Current

Average Supply Current

= +25°C, unless otherwise specified.)

= 1mA — 0.1 0.2 V

OUT

= -1mA V

OUT

During ‘awake’ period

= 3.0V — 6 10 µA

-0.2 V

— —

— — — —

-0.1 — V

<0.1 1 µA

2.1

7.3 13 µA 50 100 µs 50 100 ms

0.1 — %

—

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Magnetic Characteristics (Note 8) (@T

Symbol Characteristic Min Typ Max Unit

Bops (south pole to part marking side) Bopn (north pole to part marking side) -42 -30 -16 Brps (south pole to part marking side) Brpn (north pole to part marking side) -35 -20 -11 Bhy (|Bopx|-|Brpx|) Hysteresis (Note 9) 3 10 17

Notes: 8. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.

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

= +25°C, VDD = 2.3V to 3.6V, unless otherwise specified.)

Operation Point

Release Point

16 30 42

11 20 35

(1mT=10 Gauss)

H1810

Gauss

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Ordering Information

Part Number Package Code Packaging

AH1810-W-7 W SC59 3000/Tape & Reel -7

NEW PRODUCT

Marking Information

(1) Package Type: SC59 (2)

H1810

7” Tape and Reel

Quantity Part Number Suffix

( Top View )

XX : Identification code

: Year 0 to 9 : Week : A to Z : 1 to 26 week;

XX Y W

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

: Internal code

Part Number Package Identification Code

AH1810-W-7 SC59 HR

AH1810

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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.

G H

NEW PRODUCT

Dim Min Max Typ

A 0.35 0.50 0.38

B C D G H

N 0.70 0.80 0.75



All Dimensions in mm

SC59

1.50 1.70 1.60

2.70 3.00 2.80

- - 0.95

- - 1.90

2.90 3.10 3.00

0.013 0.10 0.05

1.00 1.30 1.10

0.35 0.55 0.40

0.10 0.20 0.15

0° 8° -

H1810

Suggested Pad Layout

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

X E

Dimensions Value (in mm)

Z 3.4 X 0.8 Y 1 C 2.4 E

1.35

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H1810

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 unauthorize d 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. Onl y the English version of this document is the final and determinative format released by Diodes Incorporated.

NEW PRODUCT

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

AH1810

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Diodes AH1810 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual