AH1895 MEDIUM SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH Description Pin Assignments The AH1895 is a medium sensitivity micropower Omnipolar Hall effect (Top View) switch IC with internal pull up and pull down capability. Designed for portable and battery powered equipment such as cellular phones and portable PCs to home appliances and industrial applications, the average supply current is only 4.3uA at 1.85V. To support portable equipment the AH1895 can operate over the supply range of 1.6V to X1-DFN1216-4 3.6V and uses a hibernating clocking system to minimize the power consumption. To minimize PCB space the AH1895 is available in (Top View) NEW PRODUCT small low profile X1-DFN1216-4 and SOT553 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 SOT553 release point (Brp). The output will remain off when there is no magnetic field. Features Omnipolar Operation (North or South pole) Supply Voltage of 1.6V to 3.6V Medium Sensitivity Micropower Operation Chopper Stabilized Design Provides: 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) Applications Open and Close Detect for Cellular Phones Holster or cover detect for cellular phones and Tablet PCs Cover or Display Switches in Portable PCs Digital Still, Video Cameras and Handheld Gaming Consoles Door, Lids and Tray Position Switches Level, Proximity and Position Switches Contact-Less Switches in Home Appliances and Industrial Applications Small Low Profile X1-DFN1216-4 and SOT553 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. Typical Applications Circuit Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical. AH1895 Document number: DS35742 Rev. 1 - 2 1 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 Pin Descriptions Package: X1-DFN1216-4 Pin Number 1 Pin Name OUTPUT Function 2 VDD Power Supply Input 3 4 NC GND No Connection (Note 5) Ground Pin Output Pin NEW PRODUCT Package: SOT553 Pin Number Pin Name 1 VDD Power Supply Input 2 3 NC NC No Connection (Note 5) No Connection (Note 5) 4 5 GND OUTPUT Note: Function Ground Output 5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground. Functional Block Diagram AH1895 Document number: DS35742 Rev. 1 - 2 2 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.) Symbol Rating Unit VDD Supply Voltage (Note 7) 6 V VDD_REV Reverse Supply Voltage -0.3 V IOUTPUT Output Current (source and sink) 3.5 mA B Magnetic Flux Density PD Package Power Dissipation Ts Storage Temperature Range TJ Maximum Junction Temperature ESD HBM NEW PRODUCT Parameter Notes: Unlimited X1-DFN1216-4 SOT553 Human Body Model (HMB) ESD capability 230 mW 230 -65 to +150 mW °C 150 °C 8 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 VDD TA Parameter Conditions Rating Unit Supply Voltage Operating 1.6V to 3.6V V Operating Temperature Range Operating -40 to +85 °C Electrical Characteristics (@TA = +25°C, VDD = 1.85V, unless otherwise specified.) Symbol VOL VOH Parameter Output Low Voltage (on) Output High Voltage (off) Ioff Output Leakage Current IDD(awake) Supply Current IDD(sleep) IDD(avg) Average Supply Current Tawake Tperiod D.C. Awake Time Period Duty Cycle Note: Conditions IOUT = 1mA IOUT = -1mA Min — VDD -0.2 Typ 0.1 VDD -0.1 Max 0.2 — Unit V V 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 — mA TA = +25°C, VDD = 1.85V — 4.3 8 µA TA = +25°C, VDD = 3.6V — 7.2 13 µA — 50 50 0.1 100 100 — µs ms % (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). AH1895 Document number: DS35742 Rev. 1 - 2 3 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 Magnetic Characteristics (Note 9 &10) (TA = -40°C to +85°C, VDD = 1.85V, unless otherwise specified) Symbol Bops (south pole to part marking side) Bopn (north pole to part marking side) Brps (south pole to part marking side) Brpn (north pole to part marking side) Bhy (|Bopx|-|Brpx|) Operation Point Release Point Hysteresis (Note 11) Min Typ Max 40 -80 35 60 -60 50 80 -40 65 -65 -50 -35 5 10 - (1mT=10 Gauss) Unit Gauss 9. Typical data is at TA = +25C, VDD = 1.85V. 10. Maximum and minimum parameters values over the operating temperature range are not tested in production, they are guaranteed by design, process control and characterization. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. 11. Maximum and minimum hysteresis is guaranteed by design and characterization. ( Output Voltage ) NEW PRODUCT Notes: Characteristics AH1895 Document number: DS35742 Rev. 1 - 2 4 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 Typical Operating Characteristics 100 100 VDD = 1.6V 80 Bops Brps Gauss (G) 40 20 Bhy 0 -20 -60 NEW PRODUCT 40 -80 -80 -100 0 25 50 75 Brpn Bopn -50 100 -25 0 25 50 75 Temperature (°C) Temperature (°C) Switch Points vs Temperature Switch Points vs Temperature 100 100 VDD = 3.6V 80 80 60 Bhy 0 -20 -40 20 -20 -80 -80 -100 -25 0 25 50 75 1.8 2.1 2.4 2.7 3 3.3 Supply Voltage (V) Switch Points vs Temperature Switch Points vs Supply Voltage 9 8 7 3.6V 6 5 1.85V 4 1.6V 3 2 1 0 -25 1.5 100 Temperature (°C) 10 -50 Brpn Bopn -60 -100 -50 Bhy 0 -40 Brpn Bopn -60 Bops Brps 40 Gauss (G) 20 TA = +25 °C 60 Bops Brps 40 0 25 50 75 100 Average Supply Current IDD (μA) Gauss (G) -20 -100 -25 Bhy 0 -60 100 Average Supply Current IDD (μA) 20 -40 Brpn Bopn -40 Bops Brps 60 Gauss (G) 60 -50 VDD = 1.85V 80 9 3.6 3.9 TA = +25 °C 8 7 6 5 4 3 2 1 0 1.5 1.8 2.1 2.4 2.7 3 3.3 Supply Voltage (V) Temperature (°C) Document number: DS35742 Rev. 1 - 2 3.9 10 Average Supply Current vs. Temperature AH1895 3.6 Average Supply Current vs. Supply Voltage 5 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 NEW PRODUCT Ordering Information Part Number Package Code Packaging AH1895-FA-7 AH1895-Z-7 FA Z X1-DFN1216-4 SOT553 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 Marking Information (1) Package Type: X1-DFN1216-4 Part Number AH1895-FA-7 (2) Package X1-DFN1216-4 Identification Code B5 Package Type: SOT553 ( Top View ) XX Y W X Part Number AH1895-Z-7 AH1895 Document number: DS35742 Rev. 1 - 2 XX : Identification Code Y : Year : 0 to 9 W : Week : A to Z : 1~26 week; a to z : 27~52 week; z represents 52 and 53 week X : Internal code Package SOT553 6 of 10 www.diodes.com Identification Code B5 July 2013 © Diodes Incorporated AH1895 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 0.57/0.63 0.11/0.25 Bottom View Sensor Location AH1895 Document number: DS35742 Rev. 1 - 2 7 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 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: SOT553 D e1 e E/2 E1 E L (5x) F R0.1 MAX. TYP. b (5x) c a A SOT553 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 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° All Dimensions in mm 7° NEW PRODUCT E1/2 TYP. Sensor Location AH1895 Document number: DS35742 Rev. 1 - 2 8 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 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 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 X (2) Package Type: SOT553 C2 Z C2 SOT553 Dimensions Value Z 2.2 G 1.2 X 0.375 Y 0.5 C1 1.7 C2 0.5 All Dimensions in mm C1 G Y X AH1895 Document number: DS35742 Rev. 1 - 2 9 of 10 www.diodes.com July 2013 © Diodes Incorporated AH1895 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. 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