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AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Features * * * * * Micropower operation Operation with North or South Pole 2.5V to 5.5V battery operation Inverted Output-on without Magnet present Chopper stabilized * Superior temperature stability * Extremely Low Switch-Point Drift * Insensitive to Physical Stress Good RF noise immunity -40C to 85C operating temperature Low profile 3 pin SC59 (commonly known as SOT23 in Asia) and DFN2020-3, DFN2020-6 package ESD (HBM) 5KV for DFN2020-3 and DFN2020-6 6KV for SC59 SC59, DFN2020-3 and DFN2020-6: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) General Description AH1801 is a Micropower, Ultra-sensitive Hall Effect Switch, which is with two Hall effect plates and a output driver, mainly designed for battery-operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total operation power is down to 24uW in the 3V supply. Either north or south pole of sufficient strength will turn the output off. The output will be turned on under no magnetic field. While the magnetic flux density (B) is larger than operate point (Bop), the output will be turned off, the output is held until B is lower than release point (Brp), then turned on. * * * * * * Applications * * * Cellular phone PDA Cordless phone Ordering Information AH1801 - XX G - 7 Package W : SC59 FJ : DFN2020-3 SN : DFN2020-6 Device AH1801-WG-7 AH1801-FJG-7 AH1801-SNG-7 Notes: Green Packing 7 : Tape & Reel G : Green Package Code W FJ SN Packaging (Note 2) SC59 DFN2020-3 DFN2020-6 7" Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 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. 2. 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. AH1801 Rev. 7 1 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Pin Assignment (1) SC59 (2) DFN2020-3 ( Top View ) ( Top View ) 2. Output GND 3. 1. Vdd 3. GND 1. Vdd (3) DFN2020-6 3. Output ( Top View ) 6. NC 5. GND 4. NC 1. Vdd Notes: 2. NC 3. Output 3. NC is "No Connection", which is recommended to be tied to ground. Pin Descriptions Pin Name Vdd GND Output NC P/I/O P/I P/I O Description Power Supply Input Ground Output Pin No Connected AH1801 Rev. 7 2 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Block Diagram 1 Power switch Offset Cancelling Offset Cancelling Hall Plate Output Amp Latch Vdd 3 Logical GND 2 Hall Plate Amp Latch Typical Circuit 2.5~5.5V RL C AH1801 GND Output Notes: 4. C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF~100nF. RL is the pull-up resistor, the recommended resistance is 10K~100K. AH1801 Rev. 7 3 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Absolute Maximum Ratings Symbol Vdd B Ts PD TJ (at TA = 25C) Characteristics Supply voltage Magnetic flux density Storage Temperature Range Package Power Dissipation Maximum Junction Temp SC59 DFN2020-3 DFN2020-6 Values 7 Unlimited -65 to +150 230 150 Unit V C mW C Recommended Operating Conditions Symbol Vdd TA Parameter Supply Voltage Operating Temperature Range (TA = 25C) Conditions Operating Operating Rating 2.5~5.5 -40 to +85 Unit V C AH1801 Rev. 7 4 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Electrical Characteristics Symbol Vout Ioff Idd(en) Characteristic Output On Voltage Output Leakage Current (TA = +25C, Vdd = 3V; unless otherwise specified) Conditions Iout = 1mA Vout = 5.5V, Output off Chip enable, TA = 25C, Vdd = 3V Chip enable, TA = -40~85C, Vdd = 2.5~5.5V Chip disable, TA = 25C, Vdd = 3V Chip disable, TA = -40~85C, Vdd = 2.5~5.5V Average supply current, TA = 25C, Vdd = 3V Average supply current, TA = -40~85C, Vdd = 2.5~5.5V (Note 5) (Note 5) Min - Typ 0.1 <0.1 3 3 5 5 8 8 75 75 0.1 Max 0.3 1 6 9 10 18 16 27 150 150 - Unit V A mA mA A A A A s ms % Idd(dis) Supply Current Idd(avg) Tawake Tperiod D.C. Notes: Awake Time Period Duty Cycle 5. When power is initially on, the operating Vdd (2.5V to 5.5V) must be applied to be guaranteed for the output sampling. The output state is valid after the second operating phase (typical 150ms). Tperiod Tawake Idd(en) Idd (dis) 0 Sample and output latched AH1801 Rev. 7 5 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Magnetic Characteristics 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) Bhy( Bopx - Brpx ) Notes: (TA = 25C, Vdd = 3V) (1mT=10 Gauss) Max Unit 60 -10 - Characteristic Operate Point Release Point Hysteresis Min -60 10 - Typ 40 -40 30 -30 10 Gauss 6. Typical data is at TA=25 C, Vdd=3V, and for design information only. 7. Operate point and release point will vary with supply voltage and operating temperature. Output ( Voltage ) ( off-state ) Turn off Turn off Turn Turn on on ( on-state ) -B Bopn Brpn Brps Bops +B Magnetic Performance Characteristics (1) SC59 / DFN2020-3 /DFN2020-6 TA (C) PD (mW) 25 230 P D (m W ) 50 184 60 166 70 147 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 ip a tio n C u rv e 300 200 100 0 0 25 50 75 85 100 125 150 T A ( C ) AH1801 Rev. 7 6 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Marking Information (1) SC59 ( Top View ) XX Y W X 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 Part Number AH1801 Package SC59 Identification Code KB (2) DFN2020-3 ( Top View ) XX YWX 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 Part Number AH1801 Package Identification Code DFN2020-3 K1 (3) DFN2020-6 ( Top View ) XX YWX 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 Identification Code DFN2020-6 KB Part Number AH1801 AH1801 Rev. 7 7 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Information (All Dimensions in mm) (1) SC59 (commonly known as SOT23 in Asia) 0.35/0.50 1.50/ 1.70 TOP VIEW 2.70/ 3.00 1.90 2.90/3.10 1.00/ 1.30 0.10/0.20 0.013/0.10 0.95 0.35/0.55 0/8 (2) DFN2020-3 0.57/0.63 Typ 0.60 0.10 C 0.08 C 0.13Max. Seating plane 0/0.05 C L C 1.95/2.075 R0 .2 0.8/1.0 C L 2x- 0.25 B 0.10M C A B 0.2/0.3 1.1/1.3 1.95/2.075 0.25 A Bottom View AH1801 Rev. 7 2x 8 of 10 www.diodes.com 0.138(Ref.) 0.325(Ref.) A 0.35/0.45 B 0.5Typ Sensor location FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Information (3) DFN2020-6 0.57/0.63 (Continued) Marking 0.05 C 0.15max. (Active area depth) Seating plane C 1.95/2.075 1.45/1.65 0.08 C 0/0.05 0.15 C 2x Pin#1 ID B 0.43mon. A Sensor location 0.2/0.3 0.30/0.40 0.05 M C A B 1.95/2.075 0.76/0.96 R0 .1 2x- 0.15 C 0.65nom. Bottom View AH1801 Rev. 7 9 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AH1801 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Taping Orientation (1) DFN2020-3 and DFN2020-6 Notes: 8. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products 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 our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH1801 Rev. 7 10 of 10 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated |
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