AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Description Pin Assignments The AH1802 is a ultra-sensitivity, micropower Omnipolar Hall Effect switch IC designed for portable and battery powered equipment such as cellular phones, PDA’s and portable PC’s. Based on two sensitive Hall Effect plates and a chopper stabilized architecture the AH1802 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 24uW with a supply of 3V. (Top View) (Top View) 2. Output 6. NC 5. GND 1. Vdd 2. NC 4. NC GND 3. 1. Vdd SC59 3. Output DFN2020-6 The single open drain output can switched on with either a north or south pole of sufficient strength. When the magnetic flux density (B) is larger than operate point (Bop) the 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. (Top View) (Top View) 3. GND 3. GND 1. Vdd 3. Output DFN2020-3 1. Vdd 2. Output DFN2015H4-3 Features Applications • • • • • • • • • • • • • Omni-polar (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＞5kV for DFN2020-6, DFN2020-3 and 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 DFN2015H4-3 ESD＞6kV for SC59 • • Low profile SC59, DFN2020-6, DFN2020-3 and DFN2015H4-3 packages “Green” Molding Compound (Note 1) Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. AH1802 Document number: 31170 Rev. 8 - 2 1 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Typical Application Circuit 2.5~5.5V RL C Output AH1802 GND Pin Descriptions Pin Name Vdd GND Output NC Notes: P/I/O P/I P/I O Description Power Supply Input Ground Output Pin No connection (Note 2) 2. NC is “No Connection”- recommendation is to connect the NC pin to ground externally. Functional Block Diagram 1 Vdd Power switch Offset Cancelling Hall Plate Output Latch Amp 3 Logical GND 2 AH1802 Document number: 31170 Rev. 8 - 2 Offset Cancelling Hall Plate Latch Amp 2 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Absolute Maximum Ratings (TA = 25°C) Symbol Vdd B Ts PD TJ Characteristics Supply Voltage Magnetic Flux Density Storage Temperature Range Package Power Dissipation Maximum Junction Temperature Values 7 Unlimited -65 to +150 230 150 Unit V °C mW °C Recommended Operating Conditions (TA = 25°C) Symbol Vdd TA Parameter Supply Voltage Operating Temperature Range Conditions Operating Operating Rating 2.5 to 5.5 -40 to +85 Unit V °C Electrical Characteristics (TA = 25°C, Vdd = 3V; unless otherwise specified) Symbol Vout Ioff Characteristic Output On Voltage Output Leakage Current Idd(en) Idd(dis) Supply Current Idd(avg) FC Tawake Tperiod D.C. Notes: Chopping Frequency Awake Time Period Duty Cycle Conditions Iout=1mA Vout=5.5V, B < Brp Chip enable, TA= 25°C, Vdd = 3V Chip enable, TA= -40~85°C, Vdd = 2.5~5.5V Chip disable, TA= 25°C, Vdd = 3V Chip disable, TA= -40~85°C, Vdd = 2.5~5.5V Average supply current , TA= 25°C, Vdd = 3V Average supply current , TA= -40~85°C, Vdd = 2.5~5.5V For design information only (Note 3) (Note 3) Min Typ. Max Unit - 0.1 <0.1 3 0.3 1 6 V µA mA - 3 10 mA - 5 10 µA - 5 18 µA - 8 16 µA - 8 23 µA - 300 75 75 0.1 150 150 - KHz µs ms % 3. When power is initially turned on, 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). Tperiod Tawake Idd(en) Sample and output latched Idd (dis) 0 AH1802 Document number: 31170 Rev. 8 - 2 3 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Magnetic Characteristics (TA = 25°C, Vdd = 3V, Note 4 & 5) (1mT=10 Gauss) Notes: Symbol Bops(south pole to brand side) Bopn(north pole to brand side) Brps(south pole to brand side) Brpn(north pole to brand side) Characteristic Bhy( Bopx − Brpx ) Hysteresis Operate Point Release Point Min 20 -40 10 - Typ. 28 -28 20 -20 Max 40 -20 -10 5 8 - Unit Gauss 4. Typical data is at TA = 25°C, Vdd = 3V, and for design information only. 5. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Vcc ( off-state ) Turn on Bhy Turn off Output ( Output Voltage ) ( Output Voltage ) Output ( on-state ) Bopn Brpn 0 ( Magnetic flux density B ) Document number: 31170 Rev. 8 - 2 Turn off Vcc Bhy Turn on Vsat Vsat AH1802 ( off-state ) ( on-state ) 0 Brps Bops ( Magnetic flux density B ) 4 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Performance Characteristics TA (°C) PD (mW) 25 230 50 184 60 166 70 147 P D (m W ) 80 129 85 120 90 110 100 92 110 74 120 55 130 37 140 18 150 0 P o w e r D is s i p a tio n C u rv e 300 200 100 0 -40 0 25 50 75 85 100 12 5 150 o TA ( C) Ordering Information AH 1802 - XXX G – 7 - 01 Package Green Packing Taping orientation W : SC59 SN : DFN2020-6 FJ : DFN2020-3 FY4 : DFN2015H4-3 G : Green 7 : Tape & Reel 01: 180o rotation Note 8 Device Package Code Packaging (Note 6 & 7) AH1802-WG-7 AH1802-SNG-7 AH1802-FJG-7 AH1802-FJG-7-01 (Note 8) AH1802-FY4G-7 W SN FJ FJ FY4 SC59 DFN2020-6 DFN2020-3 DFN2020-3 DFN2015H4-3 Notes: 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 6. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 7. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 8. AH1802-FJG-7-01 DFN2020-3 package taping orientation is rotated by 180o compared to standard part AH1802-FJG-7. See package orientation diagrams on page 10. AH1802 Document number: 31170 Rev. 8 - 2 5 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Marking Information (1) SC59 ( Top View ) 3 XX Y W X 1 2 Part Number AH1802 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Package SC59 Identification Code KC (2) DFN2020-6 ( Top View ) XX YWX Part Number AH1802 Pin 1 indicator XX : Identification Code Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Package DFN2020-6 Identification Code KC (3) DFN2020-3 ( Top View ) XX YWX Part Number AH1802 AH1802 Document number: 31170 Rev. 8 - 2 Pin 1 indicator XX : Identification Code Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Package DFN2020-3 Identification Code KE 6 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Marking Information (Continued) (4) DFN2015H4-3 ( Top View ) XX YWX Part Number AH1802 Pin 1 indicator XX : Identification Code Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Package DFN2015H4-3 Identification Code KF Package Outline Dimensions (All Dimensions in mm) (1) Package Type: SC59 AH1802 Document number: 31170 Rev. 8 - 2 7 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Package Outline Dimensions (Continued) 0.43mon. Marking 0.15max. 0.05 C 1.95/2.075 1.45/1.65 0.15 0.30/0.40 0.76/0.96 0.65 0.37 Sensor location Pin#1 ID 1.95/2.075 Top View A CL CL CL 1 R0. 2x- C 0.45 B Seating plane 0.15 C 0.65nom. 0.2/0.3 CL 0.05 M C A B 0.37 0.9 0.15 C 2x 0/0.05 0.08 C (Active area depth) 0.15 0.57/0.63 (2) Package Type: DFN2020-6 1.67 Bottom View Land Pattern Recommendation (Unit:mm) 0.10 C 1.25 Top Marking 0/0.05 0.47/0.53 (3) Package type: DFN2020-3 CL Pin1 CL 0.65 .2 0.3 Pin1 CL 0.5 1 0.138 0.775/0.975 1.85/2.15 R0 Sensor location 0.35/0.45 0.5Typ B 2.4 C CL 0.925 0.138 Seating plane 0.08 C 2x- 0.325 0.3 0.25 B 0.10 M C A B 0.2/0.3 1.1/1.35 0.325 A Bottom View 2x 0.25 A 1.85/2.15 Land Pattern Recommendation (Unit:mm) 0.18±0.07 Top View AH1802 Document number: 31170 Rev. 8 - 2 8 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Package Outline Dimensions (Continued) 0.13Typ. (4) Package type: DFN2015H4-3 0.40Max. Top Mark 3x-0.35 1.45/1.575 CL A 1.0Typ. 0.25/0.35 Seating Plane CL 2x-0.50 R0 (Pin #1) Hall Sensor CL 1.0/1.2 .1 7 5 (Pin #1) 0.50 0.45 C Side View 0.125Typ. B 1.95/2.075 1.30Typ. 0.15 0.08 C 0/0.05 2x0.25 A 3x- 0.7/0.9 0.10 C 0.50 Land Pattern Recommendation (Unit:mm) Top View 2x- 0.25 B CL 0.20/0.30 0.10 C A B Bottom View AH1802 Document number: 31170 Rev. 8 - 2 9 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH Taping Orientation (1) DFN2020-6 and DFN2020-3 with standard taping orientation (2) DFN2020-3 with 180o rotation from standard taping orientation (3) DFN2015H4-3 Notes: 9. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AH1802 Document number: 31170 Rev. 8 - 2 10 of 11 www.diodes.com December 2010 © Diodes Incorporated AH1802 MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR HALL-EFFECT SENSOR SWITCH 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). 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. 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