AH182_09

AH182/AH183 LOW POWER HALL EFFECT SWITCH Features • • • • • • • • • • Micropower operation 2.5V to 5.5V battery operation Offset Canceling Technology Superior temperature stability Extremely Low Switch-Point Drift Insensitive to Physical Stress -40°C to 85°C operating temperature Lead Free packages: SIP-3L and SC59 (Commonly known as SOT23 in Asia) SIP-3L and SC59: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish / RoHS Compliant (Note 1) General Description AH182/AH183 is a three-terminal Hall effect sensor device with an output driver, mainly designed for battery–operation, hand-held equipment (such as cellular and cordless phones, and PDA’s) The total operation power is down to 15uW in the 2.75V supply. The south pole of sufficient strength will turn the output on in SIP-3L but the north pole of sufficient strength will turn the output on in SC59 package. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operation point (Bop), the output will be turned on (low), the output is held until B is lower than the release point (Brp), then turned off. The difference between AH182 and AH183 is that the former consumes less power than that of the latter in the Hall sensor operation. Applications • • • Cover detector Speed measurement Home safety Typical Circuit * 2.5~5.5V RL C AH182/AH183 Output Gnd * 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 10Kohm~100Kohm. AH182/AH183 Rev. 8 DS31024 1 of 10 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Ordering Information AH182 / AH183 - X X - X CMOS Hall-effect Switch Package P : SIP-3L W : SC59 Lead Free L : Lead Free G : Green Packing A : Ammo Box (Note 3) B : Bulk (Note 4) 7 : Tape & Reel Ammo Box Part Quantity Number Suffix 4000/Box -A NA NA 4000/Box -A NA NA NA NA NA NA Device AH182/AH183-PL-A AH182/AH183-PL-B AH182/AH183-PG-A AH182/AH183-PG-B AH182/AH183-WL-7 AH182/AH183-WG-7 Notes: Bulk 7” Tape and Reel Package Packaging Part Part Code (Note 2) Quantity Number Quantity Number Suffix Suffix P SIP-3L NA NA NA NA P SIP-3L 1000 -B NA NA P SIP-3L NA NA NA NA P SIP-3L 1000 -B NA NA W SC59 NA NA 3000/Tape & Reel -7 W SC59 NA NA 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. 3. Ammo Box is for SIP-3L Spread Lead. 4. Bulk is for SIP-3L Straight Lead. Pin Assignments (1) SIP-3L (2) SC59 (Commonly known as SOT23 in Asia) (Top view) 3. Output 2. GND 1. Vdd (Top view) GND 2. 3. Output 1. Vdd Pin Description Pin Name Vdd GND Output P/I/O P/I P O Pin # 1 2 3 Description Power Supply Input Ground Output Pin AH182/AH183 Rev. 8 DS31024 2 of 10 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Block Diagram 1 Vdd Reg./Switch Output 3 Logical Amp Gnd Offset Cancelling Hall Plate 2 Absolute Maximum Ratings Symbol Vdd B IOUT PD TJ(MAX) TST (TA = 25°C) Parameter Supply Voltage Magnetic Flux Density Output current Power Dissipation Maximum Junction Temperature Storage Temperature Range SIP-3L SC59 Rating 7 Unlimited 10 550 230 150 -65 to +150 Unit V mA mW mW °C °C Recommended Operating Conditions Symbol Vdd TA Parameter Supply Voltage Operating Ambient Temperature (TA = 25°C) Conditions Operating Operating Min 2.5 -40 Max 5.5 85 Unit V °C AH182/AH183 Rev. 8 DS31024 3 of 10 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Electrical Characteristics Symbol VOUT Ioff Idd(en) Idd(dis) Idd(avg) Idd(avg) Tawake Tperiod D.C. Characteristic Output On Voltage Output Leakage Current Supply Current Awake Time Period Duty Cycle (TA = 25°C, Vdd = 3V ) Conditions IOUT = 1mA VOUT = 5.5V, B < Brp Chip enable Chip disable AH182: average supply current AH183: average supply current AH182 AH183 AH182 AH183 Min - Typ. 0.1