AH1884-ZG-7

AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Description AH1884 is with two Hall effect plates and dual CMOS output driver, mainly designed for battery–operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total operation power is down to 15uW in the 1.8V supply. Either north or south pole of sufficient strength will turn the output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operate point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off. Pin Assignments ( Top View ) Out 2 GND NC 1 2 3 SOT553 5 Out 1 4 Vdd Features • • • • Micropower operation Operation with North or South Pole 1.65V to 3.3V battery operation Chopper stabilized • Superior temperature stability • Extremely Low Switch-Point Drift • Insensitive to Physical Stress Good RF noise immunity -40°C to 85°C operating temperature ESD ＞ 4KV in human body mode Package: SOT553 “Green” Molding Compound Applications • • • Cellular phone PDA Cordless phone • • • • • Typical Application Circuit Vdd Output 1 AH1884 Output 2 GND AH1884 Document number: DS31171 Rev. 6 - 2 1 of 7 www.diodes.com September 2010 © Diodes Incorporated AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Pin Descriptions Pin Name Out 2 GND NC Vdd Out 1 P/I/O O P/I P/I O Pin # 1 2 3 4 5 Description Output Pin ( active High ) Ground No Connection Power Supply Voltage Output Pin ( active Low ) Functional Block Diagram Vdd Power switch Offset Cancelling Offset Cancelling Hall Plate Amp Latch Out1 Logical Hall Plate GND Vdd Amp Latch Out2 GND 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 5 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 1.65 to 3.3 -40 to +85 Unit V °C AH1884 Document number: DS31171 Rev. 6 - 2 2 of 7 www.diodes.com September 2010 © Diodes Incorporated AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Electrical Characteristics (TA = 25°C, Vdd = 1.8V, unless otherwise specified) Symbol VOH VOL Idd(en) Idd(dis) Idd(avg) Tawake Tperiod D.C. Awake Time Period Duty Cycle Supply Current Characteristic Output On Voltage (High side) Output On Voltage (Low side) Conditions IO= -0.5mA IO= 0.5mA Chip enable Chip disable average supply current Min Vdd-0.2 Typ. 2 5 7 50 50 0.1 Max 0.2 4 8 12 100 100 Unit V V mA uA uA µs ms % Magnetic Characteristics (TA = 25°C, Vdd = 1.8V~3.0V, Note 1 & 2) (1mT=10 Gauss) 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: Characteristic Operate Point Release Point Hysteresis Min -55 15 3 Typ. 37 -37 29 -29 8 Max 55 -15 - Unit Gauss 1. Typical data is at Ta = 25°C, Vdd = 3V, and for design information only. 2. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Output1 ( Output Voltage ) ( Output Voltage ) Output1 V dd ( off-state ) Turn off Turn on ( off-state ) V dd B hy Turn off B hy Turn on ( on-state ) Vsat Vsat ( on-state ) Bopn B rpn 0 ( Magnetic flux density B ) 0 B rps Bops ( Magnetic flux density B ) AH1884 Document number: DS31171 Rev. 6 - 2 3 of 7 www.diodes.com September 2010 © Diodes Incorporated AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Typical Operating Characteristics Switching Point AH1884 Hysteresis vs Temp. 50 40 30 20 10 Gauss(G) 0 -10 -20 -30 -40 -50 -50 -25 0 25 Temp. ℃ 50 75 100 -60 (Vdd = 1.8V) Gauss (G) 60 AH1884 Hysteresis vs Vdd (Ta =25 Degree C) 40 Brpn Bopn Brps Bops Bhys_n Bhys_s 0 20 Brpn Bopn Brps 1.8 -20 -40 2.3 2.8 Bops Bhys_n Bhys_s Vdd(V) Supply Current AH1884 Idd(avg.) vs Temp. 10 9 8 Idd(avg.) unit : uA 7 6 5 4 3 2 -50 -25 0 25 Temp. ℃ 50 75 100 Vdd = 1.8V Vdd = 2.5V AH1884 Idd(avg.) vs Vdd 12 10 Idd(avg.) 8 unit: uA 6 4 2 0 1.8 2.3 (Ta=25 Degree C) Icc (avg) uA 2.8 Vdd(V) AH1884 Document number: DS31171 Rev. 6 - 2 4 of 7 www.diodes.com September 2010 © Diodes Incorporated AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Performance Characteristics TA (°C) PD (mW) 25 230 P D (m W ) 300 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 i p a tio n C u rv e 200 100 0 0 -4 0 25 50 75 85 100 12 5 150 o TA ( C) Ordering Information AH 1884 - Z G - 7 Package Z : SOT553 Device AH1884-ZG-7 Notes: Green Packing 7 : Tape & Reel G : Green Package Code Z Packaging (Note 3 & 4) SOT553 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 4. 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. AH1884 Document number: DS31171 Rev. 6 - 2 5 of 7 www.diodes.com September 2010 © Diodes Incorporated AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Marking Information (1) SOT553 ( Top View ) 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 Identification Code KR XX Y W X Part Number AH1884 Package SOT553 Package Outline Dimensions (All Dimensions in mm) (1) Package Type: SOT553 1.50/1.70 0.30 C D 0.30 C D 1.0Typ. C L A 1.0Typ. 5x-0.5 0.10/0.18 6°~8 ° C L D 0.45/0.67 1.55/1.70 1.10/1.25 0.32/0.58 Hall Sensor 0.30 C Pin1 0.5Typ. 6°~8° 1.2 0.15/0.30(5x) B 0.10 M C A-B D Pin1 0.5Typ. 0.3 Land Pattern Recommendation (Unit:mm) Top View 6°~ 8° AH1884 Document number: DS31171 Rev. 6 - 2 0.55/0.62 6 of 7 www.diodes.com 1.7 2.2 September 2010 © Diodes Incorporated C L 0.1 C L AH1884 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT 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. 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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 © 2010, Diodes Incorporated www.diodes.com AH1884 Document number: DS31171 Rev. 6 - 2 7 of 7 www.diodes.com September 2010 © Diodes Incorporated