AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Description Pin Assignments (Top View) The AH1883 micropower Omnipolar Hall Effect switch IC is designed for portable and battery powered equipment such as cellular phones, cordless phones, camcorders, PDA’s, and portable PC’s. Based on two high sensitivity Hall Effect plates and chopper stabilized architecture, the AH1883 provides reliable solution over the whole operating range. NC 1 GND 2 NC 3 5 OUTPUT 4 Vdd SOT553 To support portable and battery powered equipment the design has been optimized to operate from 1.65V to 3.3V and consumes 13uW typical with a supply of 1.8V. To minimize PCB space the AH1883 incudes a push-pull output structure, therefore does not require an external pull up resistor, and is packaged in small low profile SOT553 and U-DFN2020-3 packages. (Top View) 3. GND Either North or South pole of sufficient strength will turn the output on. When the magnetic flux density (B) is larger than operate (Bop) the output is switched on. 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. 1. Vdd Features Applications • • • • • • • • • • • • • • Micropower operation Operation with North or South Pole 1.65V to 3.3V battery operation Chopper stabilized o Superior temperature stability o Extremely Low Switch-Point Drift o Insensitive to Physical Stress Good RF noise immunity -40°C to 85°C operating temperature ESD (HBM) ＞ 6kV in SOT553 and U-DFN2020-3 • • Small low profile packages: SOT553 and U-DFN2020-3 “Green” Molding Compound AH1883 Document number: DS31296 Rev. 6 - 2 2. OUTPUT U-DFN2020-3 Cellular phone PDA Portable PCs – Netbook, Notebook, Tablets Camcorders Cordless phone Handheld game consoles Proximity detection and contact-less switch applications 1 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Typical Application Circuit Vdd Output AH1883 GND Pin Descriptions Pin Name P/I/O Pin # 1 No Connection P/I 2 Ground 3 No Connection NC GND NC Description Vdd P/I 4 Power Supply Voltage Output O 5 Output Pin ( active Low ) Functional Block Diagram Vdd Sleep/Awake Logic and Power Switch AH1883 Document number: DS31296 Rev. 6 - 2 Offset Cancellation Hall Plate Offset Cancellation Hall Plate Amp Latch Output Driver Controller Output GND Amp Latch 2 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Absolute Maximum Ratings (TA = 25°C, Note 1) Symbol Vdd B TS Notes: Characteristics Values 5 Unlimited Supply voltage Magnetic flux density Storage Temperature Range Unit V -65 to +150 °C PD Package Power Dissipation 230 mW TJ Maximum Junction Temperature 150 °C 1. 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 Recommended Operating Conditions (TA = 25°C) Symbol Vdd TA Parameter Conditions Rating Unit Supply Voltage Operating 1.65 to 3.3 V Operating Temperature Range Operating -40 to +85 °C Electrical Characteristics (TA = 25°C, Vdd = 1.8V, unless otherwise specified) Symbol Characteristic Conditions Min Typ. Max Unit VOH Output On Voltage (High side) IO= -0.5mA Vdd-0.2 - - V VOL Output On Voltage (Low side) IO= 0.5mA - - 0.2 V Chip enable - 2 4 mA Supply Current Chip disable - 5 8 uA average supply current uA Idd(en) Idd(dis) Idd(avg) - 7 12 Tawake Awake Time - 50 100 µs Tperiod Period - 50 100 ms Duty Cycle - 0.1 - % D.C. AH1883 Document number: DS31296 Rev. 6 - 2 3 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Magnetic Characteristics (TA = 25°C, Vdd = 1.8V~3.0V, Note 2 & 3) Symbol Characteristic Bops(south pole to brand side) Operate Point Bopn(north pole to brand side) Brps(south pole to brand side) Release Point Brpn(north pole to brand side) Bhy(|Bopx|-|Brpx|) Notes: Hysteresis Min (1mT=10 Gauss) Max Unit Typ. - 37 55 -55 -37 - 6 29 - - -29 -6 3 8 - Gauss 2. Typical data is at TA = 25°C, Vdd = 3V, and for design information only. 3. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Vdd Turn on Output ( off-state ) B hy ( on-state ) Turn off ( Output Voltage ) ( Output Voltage ) Output Document number: DS31296 Rev. 6 - 2 Turn off Vdd B hy Turn on Vsat Vsat Bopn B rpn 0 ( Magnetic flux density B ) AH1883 ( off-state ) ( on-state ) 0 B rps Bops ( Magnetic flux density B ) 4 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Typical Operating Characteristics AH1883 Sw itch points vs. Tem perature (Vdd = 1.8V) AH1883 Sw itch points vs. Vdd (TA =25 ℃) 50 50 40 40 30 20 Bops 10 Brps 0 Bopn Brpn -10 Bhy_s -20 Bopn 0 Brpn -10 Bhy_s Bhy_n -30 -40 -50 -40 Brps 10 -20 Bhy_n -30 Bops 20 Gauss(G) Gauss(G) 30 -40 -15 10 35 60 -50 1.65 1.9 2.15 2.4 2.65 2.9 3.15 3.4 3.65 3.9 85 Vdd(V) Tem perature (℃) Idd (avg.) unit: μA 9 Idd (avg.) unit: μA 10 AH1883 Idd(avg.) vs. Tem perature AH1883 Idd(avg.) vs. Vdd (TA=25 ºC) 9 8 8 7 7 6 6 5 5 4 4 3 1.65V 3 2 1.8V 2 1 3.3V 1 0 0 -40 -15 10 35 60 85 1.65 Tem perature (℃) AH1883 Document number: DS31296 Rev. 6 - 2 5 of 10 www.diodes.com 1.9 2.15 2.4 2.65 2.9 Vdd(V) 3.15 3.4 3.65 September 2011 © Diodes Incorporated 3.9 AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Performance Characteristics For SOT553 and U-DFN2020-3 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 P D (m W ) 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 1883 - XX G - 7 Package Z : SOT553 FJ : U-DFN2020-3 Device AH1883-ZG-7 AH1883-FJG-7 Notes: Package Code Z FJ Packaging (Note 4 & 5) SOT553 U-DFN2020-3 Green Packing G : Green 7 : Tape & Reel 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 5. 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. AH1883 Document number: DS31296 Rev. 6 - 2 6 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Marking Information (1) SOT553 ( 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 : Internal code Part Number Package Identification Code AH1883 SOT553 KP (2) U-DFN2020-3 ( Top View ) XX YWX AH1883 Document number: DS31296 Rev. 6 - 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 : Internal code Part Number Package Identification Code AH1883 U-DFN2020-3 KP 7 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Package Outline Dimensions (All Dimensions in mm) (1) Package Type: SOT553 D e1 e E1 E L b (5 places) c a SOT553 Dim Min Max Typ A 0.55 0.60 0.60 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 L 0.10 0.30 0.20 b 0.15 0.30 0.20 e 0.50 Typ e1 1.00 Typ a 8° 7° 6° All Dimensions in mm A (2) Package Type: U-DFN2020-3 A3 A SEATING PLANE A1 D D2 Pin#1 ID L E E2 U-DFN2020-3 Dim Min Max Typ A 0.57 0.63 0.60 A1 0 0.05 0.02 A3 ⎯ ⎯ 0.152 b 0.20 0.30 0.25 D 1.95 2.075 2.00 D2 1.10 1.30 1.20 e 0.50 ⎯ ⎯ E 1.95 2.075 2.00 E2 0.80 1.00 0.90 L 0.35 0.45 0.40 All Dimensions in mm L b e AH1883 Document number: DS31296 Rev. 6 - 2 8 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH Taping Orientation (Note 6) For U-DFN2020-3 Notes: 6. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AH1883 Document number: DS31296 Rev. 6 - 2 9 of 10 www.diodes.com September 2011 © Diodes Incorporated AH1883 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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