AH1902 HIGH SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH Description Pin Assignments The AH1902 is a high sensitivity micropower Omnipolar Hall effect switch IC with internal pull up and pull down capability. Designed for portable and battery powered consumer equipment such as cellular phones and portable PCs to office equipment, home appliances and industrial applications, the average supply current is only 4.3uA at 1.8V. To support potable equipment the AH1902 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system NEW PRODUCT to minimize the power consumption. To minimize PCB space the AH1902 is available in small low profile X1-DFN1216-4 and X2DFN2015-6 packages. 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) and held until B is lower than release point (Brp). Features Applications • Omnipolar Operation (North or South Pole) • Open and Close Detect for flip/slide Cellular Phones • Supply Voltage of 1.6V to 3.6V • Smart Cover or Dock Detect for Cellular Phones and Tablet PCs • High Sensitivity • Cover or Display Switch in Portable PCs (eg Ultrabook) • Micropower Operation • Digital Still, Video Cameras and Handheld Gaming Consoles • Chopper Stabilized Design Provides: • Door, Lids and Tray Position Switches Level, Proximity and Position Switches Superior Temperature Stability • Minimal Switch Point Drift • Enhanced Immunity to Physical Stress • No External Pull-up Resistors Required • Good RF Noise Immunity • -40°C to +85°C Operating Temperature • High ESD capability of 8kV (Human Body Model) • Small Low Profile X1-DFN1216-4 and X2-DFN2015-6 Packages • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Notes: Contact-Less Switches in Home Appliances and Industrial Applications 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied. 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. Typical Applications Circuit Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical and should be placed as close to the supply pin as possible. AH1902 Document number: DS36533 Rev. 2 - 2 1 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 Pin Descriptions NEW PRODUCT Package: X1-DFN1216-4 Pin Number 1 2 3 4 Pin Name OUTPUT GND NC VDD Pad Pad Function Output Pin Ground Pin No Connection (Note 5) Power Supply Input The center exposed pad - It is internally connected to VDD pin and should not be connected to GND or any other signal on the PCB. The exposed pad should be left open (unconnected) on the PCB layout. Package: X2-DFN2015-6 Pin Number 1 2 3 4 Pin Name OUTPUT NC NC GND 5 6 NC VDD Pad Pad Note: Function Output Pin No Connection (Note 5) No Connection (Note 5) Ground Pin No Connection (Note 5) Power Supply Input The center exposed pad – No connection internally. The exposed pad can be left open (unconnected) or tied to the GND on the PCB layout. 5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground. Functional Block Diagram AH1902 Document number: DS36533 Rev. 2 - 2 2 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.) Symbol VDD VDD_REV IOUTPUT B PD NEW PRODUCT Rating 6 -0.3 3 Unlimited 230 X1-DFN1216-4 Package Power Dissipation Ts TJ ESD HBM Notes: Parameter Supply Voltage (Note 7) Reverse Supply Voltage Output current (source and sink) Magnetic Flux Density X2-DFN2015-6 Unit V V mA mW 230 -65 to +150 150 8 Storage Temperature Range Maximum Junction Temperature Human Body Model (HMB) ESD capability mW °C °C kV 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 VDD of 6V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the device at the absolute maximum rated conditions for any period of time. Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol Parameter Conditions Rating Unit VDD Supply Voltage Operating 1.6V to 3.6V V TA Operating Temperature Range Operating -40 to +85 °C Electrical Characteristics (@TA = +25°C, VDD = 1.8V, unless otherwise specified.) Symbol Parameter Min Typ Max Unit V VOL Output Low Voltage (on) IOUT = 1mA — 0.1 0.2 VOH Output High Voltage (off) IOUT = -1mA VDD-0.2 VDD-0.1 — V Ioff Output Leakage Current VOUT = 3.6V, Output off — < 0.1 1 µA During ‘awake’ period, TA = +25°C, VDD = 3V — 2.1 — mA During ‘sleep’ period, TA = +25°C, VDD = 3V — 2.5 — µA — 4.3 7.2 50 50 0.1 8 13 100 100 — µA µA µs ms % IDD(awake) Supply Current IDD(sleep) IDD(avg) Average Supply Current Tawake Tperiod D.C. Awake Time Period Duty Cycle Note: Conditions TA = +25°C, VDD = 1.8V TA = +25°C, VDD = 3.6V (Note 8) (Note 8) — — — — 8. 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). AH1902 Document number: DS36533 Rev. 2 - 2 3 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 Magnetic Characteristics (Note 9 &10) (TA = +25°C, VDD = 1.8V, unless otherwise specified) Symbol Characteristics Test Condition Bops (south pole to part marking side) NEW PRODUCT Operation Point VDD = 1.6V to 3.6V TA = -40°C to +85°C Bopn (north pole to part marking side) VDD = 1.6V to 3.6V TA = -40°C to +85°C Brps (south pole to part marking side) VDD = 1.6V to 3.6V TA = -40°C to +85°C Release Point Brpn (north pole to part marking side) Bhy (|Bopx|-|Brpx|) Notes: VDD = 1.6V to 3.6V TA = -40°C to +85°C Hysteresis (1mT=10 Gauss) Max Unit 47 Min 23 Typ 33 21 33 48 -47 -33 -24 -48 -33 -21 12 23 35 9 23 38 -35 -23 -12 -38 -23 -9 - 10 - Gauss 9. Typical data is at TA = +25°C, VDD = 1.8V. 10. Maximum and minimum parameters values over operating temperature range are not tested in production, they are guaranteed by design, characterization and process control. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. AH1902 Document number: DS36533 Rev. 2 - 2 4 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 Bops Brps Bhy Brpn Bopn Gauss (G) -50 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 -25 0 25 50 75 Gauss (G) VDD = 1.6V 100 Bops Brps Bhy Brpn Bopn -25 0 0 25 50 75 100 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 Bops Brps Bhy Brpn Bopn 1.5 1.8 2.1 3.6V 7 6 5 1.8V 1.6V 4 3 2 1 0 75 100 Average Supply Current IDD (μA) 8 50 10 9 8 7 6 5 4 3 2 1 0 3.3 3.6 3.9 3.6 3.9 TA = +25 °C 1.5 1.8 2.1 2.4 2.7 3 3.3 Average Supply Current vs. Supply Voltage Average Supply Current vs. Temperature Document number: DS36533 Rev. 2 - 2 3 Supply Voltage (V) Temperature (°C) AH1902 2.7 Temperature (°C) 9 25 2.4 Switch Points vs Temperature 10 0 100 TA = +25 °C Temperature (°C) Average Supply Current IDD (μA) 75 Switch Points vs Temperature Switch Points vs Temperature -25 50 Switch Points vs Temperature Brpn Bopn -50 25 Temperature (°C) Bops Brps Bhy -25 V DD = 1.8V -50 VDD = 3.6V -50 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 Temperature (°C) Gauss (G) NEW PRODUCT Gauss (G) Typical Operating Characteristics 5 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 NEW PRODUCT Ordering Information Part Number Package Code Packaging AH1902-FA-7 AH1902-FT4-7 FA FT4 X1-DFN1216-4 X2-DFN2015-6 7” Tape and Reel Quantity 3000/Tape & Reel 3000/Tape & Reel Part Number Suffix -7 -7 Marking Information (1) Package Type: X1-DFN1216-4 and X2-DFN2015-6 Part Number AH1902-FA-7 AH1902-FT4-7 AH1902 Document number: DS36533 Rev. 2 - 2 Package X1-DFN1216-4 X2-DFN2015-6 6 of 10 www.diodes.com Identification Code F2 D2 January 2014 © Diodes Incorporated AH1902 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (1) Package Type: X1-DFN1216-4 A 3 A 1 A e n a l P g n i t a e S ︶ ° 5 4 x 2 . 0 ' C ︵ D I 1 # n i P E 2 E NEW PRODUCT De X1-DFN1216-4 Dim Min Max Typ A 0.47 0.53 0.50 A1 0.00 0.05 0.02 A3 --0.13 b 0.15 0.25 0.20 D 1.15 1.25 1.20 D2 0.75 0.95 0.85 E 1.55 1.65 1.60 E2 0.55 0.75 0.65 e 0.65 L 0.20 0.30 0.25 Z 0.175 All Dimensions in mm L 2 D b Z Bottom View Sensor Location AH1902 Document number: DS36533 Rev. 2 - 2 7 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 Package Outline Dimensions (cont.) (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (2) Package Type: X2-DFN2015-6 3 A 1 A A e n a l P g n i t a e S X2-DFN2015-6 Dim Min Max Typ A 0.375 0.40 0.390 A1 0 0.05 0.02 A3 0.13 b 0.20 0.30 0.25 D 1.45 1.575 1.50 D2 1.00 1.20 1.10 e 0.50 E 1.95 2.075 2.00 E2 0.70 0.90 0.80 L 0.25 0.35 0.30 Z 0.125 Z1 0.075 All Dimensions in mm L D 0 0 2 . 0 R D I 1 # n i P ︶ 2 E E 2 D 1 z b e NEW PRODUCT z ︵ Bottom View Min/Max Top View PART MARKING SURFACE Pin# 1 Die Hall Sensor 0.97/1.04 Sensor Location AH1902 Document number: DS36533 Rev. 2 - 2 8 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. (1) Package Type: X1-DFN1216-4 1 X C X1-DFN1216-4 Y X (2) Package Type: X2-DFN2015-6 2 X NEW PRODUCT 1 Y 2 Y Dimensions Value C 0.65 X 0.25 X1 0.90 Y 0.50 Y1 0.70 Y2 2.00 All Dimensions in mm C X Y X2-DFN2015-6 Dimensions Value C 0.500 X 0.350 X1 1.150 X2 1.350 Y 0.500 Y1 0.850 Y2 2.150 All Dimensions in mm 2 Y 1 Y 1 X AH1902 Document number: DS36533 Rev. 2 - 2 9 of 10 www.diodes.com January 2014 © Diodes Incorporated AH1902 IMPORTANT NOTICE 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). NEW PRODUCT 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. LIFE SUPPORT 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 2. support or sustain life and whose failure to perform 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 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. Copyright © 2014, Diodes Incorporated www.diodes.com AH1902 Document number: DS36533 Rev. 2 - 2 10 of 10 www.diodes.com January 2014 © Diodes Incorporated