AH1808 HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH Description Pin Assignments The AH1808 is a high sensitivity, micro power Omnipolar Hall Effect switch IC designed for portable and battery powered consumer TOP View) equipment such as cellular phones, PDA’s and portable PC’s to home appliance and industrial applications. Based on two sensitive Hall Effect plates and a chopper stabilized architecture the AH1808 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. SC59 The single open drain output can switched on with either a North or South pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop) the (TOP View) output is switched 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. Features SOT553 • Omnipolar (North or South pole) Operation • High Sensitivity • Single Open Drain Output • Micropower Operation • 2.5V to 5.5V Operating Range • Cover Switch in Clam-Shell or Slide Type Cellular Phones • Chopper Stabilized Design Provides • Display Switch for Portable PCs Superior Temperature Stability • On/Off Switch for PDAs and Digital Cameras Minimal Switch Point Drift Enhanced Immunity to Stress • Contact-Less Switch in Consumer Products • Smart E-meters • Good RF Noise Immunity • -40°C to +85°C Operating Temperature • ESD (HBM) > 6KV Applications • • 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: Position, Proximity and Level Detection Contact-Less Switch in Home Appliances and Industrial Applications 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. AH1808 Document number: DS35655 Rev. 4 - 2 1 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 Typical Applications Circuit Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF to 100nF. RL is the pull-up resistor, the recommended resistance is 10kΩ to 100kΩ. Pin Descriptions Package: SC59 1 Pin Name VDD 2 3 GND OUTPUT Pin Number Function Power Supply Input Ground Output Package: SOT553 1 2 3 Pin Name NC GND NC 4 5 VDD OUTPUT Pin Number Note: Function No Connection (Note 5) Ground No Connection (Note 5) Power Supply Input 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 AH1808 Document number: DS35655 Rev. 4 - 2 2 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.) Symbol Values Unit VDD Supply Voltage (Note 7) 7 V VOUT Output Pin Voltage (Note 7) 7 V Reverse Supply Voltage -0.3 V VOUT_REV Reverse Output Pin Voltage -0.3 V IOUTPUT Output current (source and sink) 2.5 mA VDD REV Parameter B Magnetic Flux Density PD Package Power Dissipation Ts Storage Temperature Range TJ Maximum Junction Temperature ESD HBM Notes: Unlimited SC59 and SOT553 230 Human Body Model ESD capability mW -65 to +150 °C +150 °C 6 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 7V 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 VOUT_MAX TA Rating Unit Supply Voltage Characteristic Operating Conditions 2.5 to 5.5 V Maximum output pin voltage Operating 5.5 V Operating Temperature Range Operating -40 to +85 °C Electrical Characteristics (@TA = +25°C, VDD = 3V, unless otherwise specified.) Symbol Min Typ Max Output On Voltage IOUT = 1mA — 0.1 0.3 V Output Leakage Current VOUT = 5.5V, Output off — < 0.1 1 µA During ‘awake’ period, TA = +25°C, VDD = 3V — 3 6 mA During ‘awake’ period, TA = -40°C to +85°C, VDD = 2.5V to 5.5V — 3 12 mA IDD(sleep) During ‘sleep’ period, TA = +25°C, VDD = 3V — 5 10 µA IDD(sleep) During ‘sleep’ period, TA = -40°C to +85°C, VDD = 2.5V to 5.5V — — 28 µA VOUT_ON Ioff Characteristic IDD(awake) Supply Current IDD(avg) Average Supply Current Tawake Tperiod D.C. Awake Time Period Duty Cycle Note: Conditions Unit TA = +25°C, VDD = 3V — 8 16 µA TA = -40°C to +85°C, VDD = 2.5V to 5.5V — — 40 µA (Note 8) (Note 8) — — — — 75 75 0.1 125 125 — µs ms % 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). AH1808 Document number: DS35655 Rev. 4 - 2 3 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 Magnetic Characteristics (Note 9 & 10) (@TA = -40°C to +85°C , VDD = 2.5V to 5.5V Symbol Characteristic 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|) Notes: unless otherwise specified.) Min Operation Point Release Point Hysteresis (Note 11) (1mT=10 Gauss) Max Unit Typ 20 40 60 -60 10 -50 5 -40 30 -30 10 -20 50 -10 — Gauss 9. Typical data is at TA = +25°C, VDD = 3V, and for design information only. 10. Maximum and minimum parameters values over the 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. 11. Maximum and minimum hysteresis is guaranteed by design and characterization. Thermal Performance Characteristics (1) Package type: SC59 and SOT553 TA (°C) 25 50 60 70 80 85 90 100 110 120 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 74 55 37 18 0 PD (mW) Power Dissipation Curve 300 200 100 0 0 -40 AH1808 Document number: DS35655 Rev. 4 - 2 25 50 75 4 of 9 www.diodes.com 85 100 125 150 TA (oC) February 2014 © Diodes Incorporated AH1808 Ordering Information Part Number Package Code Packaging AH1808-W-7 AH1808-Z-7 W Z SC59 SOT553 Quantity 3000/Tape & Reel 3000/Tape & Reel 7” Tape and Reel Part Number Suffix -7 -7 Marking Information (1) Package Type: SC59 Part Number AH1808 (2) Package SC59 Identification Code J8 Package type: SOT553 Part Number AH1808 AH1808 Document number: DS35655 Rev. 4 - 2 Package SOT553 5 of 9 www.diodes.com Identification Code J8 February 2014 © Diodes Incorporated AH1808 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 SC59 Min Max Typ 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 0° 8° α All Dimensions in mm B C Dim A G H K J M N D L Sensor Location AH1808 Document number: DS35655 Rev. 4 - 2 6 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (1) Package Type: SOT553 D e1 E1/2 e E/2 E1 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 E L (5x) c b (5x) F R0.1 MAX. TYP. a 7° A TYP. Min/Max 0.10/0.18 CL 0.22/0.38 Die CL 0.45/0.67 0.75/0.85 Hall Sensor Pin# 1 PART MARKING SURFACE Sensor Location AH1808 Document number: DS35655 Rev. 4 - 2 7 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. (1) Package Type: SC59 Y Z C X (2) Dimensions Value (in mm) Z 3.4 X 0.8 Y 1.0 C 2.4 E 1.35 E Package Type: SOT553 C2 Z C2 C1 G Y Dimensions Value (in mm) Z 2.2 G 1.2 X 0.375 Y 0.5 1.7 C1 0.5 C2 X AH1808 Document number: DS35655 Rev. 4 - 2 8 of 9 www.diodes.com February 2014 © Diodes Incorporated AH1808 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). 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