AH182/AH183 Low power Hall Effect Switch Features General Description - 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 - Low profile 3 pin SIP/SOT23 package AH182/AH183 is a three-terminal Hall effect sensor device with 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 15uW in the 2.75V supply. The south pole of sufficient strength will turn the output on in SIP3 but the north pole of sufficient strength will turn the output on in SOT23 package. 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 latched until B is lower than release point (Brp), then turned off that. The difference between AH182 and AH183 is the former consumes less power than that of the latter in the Hall sensor operation. Applications - Cover detector - Speed measurement - Home safety Pin Descriptions Pin Assignments (Top view) Name Vcc GND Output 3. Output 2. GND P/I/O P/I P O Pin # 1 2 3 Description Power Supply Input Ground Output Pin 1. VCC (SIP3 package) 3. Output GND 2. 1. VCC ( SOT23 package) Ordering Information AH182/AH183 X - X X X CMOS Hall-effect Switch Wafer Body Package Lead Packing Blank or A~Z : if necessary to specify P: SIP-3L W: SOT23-3L L : Lead Free Blank: Normal Blank : Tube or Bulk A : Tape & Reel This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 0.3 May 7, 2004 1/6 AH182/AH183 Low power Hall Effect Switch Block Diagram 1 VCC Reg./Switch Output Offset Cancelling Hall Plate 3 Amp Gnd Latch 2 Typical Circuit 2.5~5.5V RL Vcc AH182/ AH183 Output Digital Output Gnd Absolute Maximum Ratings (Ta = 25°C) Characteristics Supply voltage Symbol Values Unit VCC 7 V Magnetic flux density B Operating Temperature Range Ta -40 to +85 °C Storage Temperature Range Ts -65 to +170 °C SIP3 550 mW SOT23-3 230 mW 150 °C Package Power Dissipation PD Maximum Junction Temp Tjc Anachip Corp. www.anachip.com.tw Unlimited Rev 0.3 May 7, 2004 2/6 AH182/AH183 Low power Hall Effect Switch Electrical Characteristics Characteristic Supply Voltage Output On Voltage Output Leakage Current Symbol Awake Time Vcc Vout Ioff Icc(en) Icc(dis) Icc(avg) Icc(avg) Tawake Period Tperiod Supply Current Duty Cycle ( Ta = +25°C, Vcc = 3V ) D.C. Conditions Operating Iout=1mA Vout=5.5V, B < Brp Chip enable Chip disable AH182:average supply current AH183:average supply current Min Typ Max Unit 2.5 3 0.1 <0.1 5.5 0.3 1 2.0 8.0 10 500 100 100 400 V V µA mA uA uA uA µs ms us % % 5 280 50 50 200 0.1 25 AH182 AH183 AH182 AH183 Pull up resistor Test Circuit 182/183 1 Vcc 2.5-5.5V 3 2 Magnetic Characteristics (Ta=-40°C to +85°C) (1mT=10 Gauss) Characteristic Symbol Min Typ Max Unit Operate Point Release Point Hysteresis Bop Brp Bhy(Bop-Brp) -10 -- 40 30 10 60 --- Gauss Anachip Corp. www.anachip.com.tw Rev 0.3 May 7, 2004 3/6 AH182/AH183 Low power Hall Effect Switch S ( Output Voltage ) Output S Marking side Marking side N N ( SOT23 ) ( SIP3 ) ( off-state ) Vcc Bhy Turn off Turn on ( on-state ) Vsat 0 B rp B op ( Magnetic flux density B ) Performance Characteristics (SIP3) Ta (°C) 25 50 60 70 80 85 90 95 100 105 110 115 120 Pd (mW) 550 440 396 352 308 286 264 242 220 198 176 154 132 P o w e r D is s ip a tio n C u rv e P d (m W ) 600 500 400 300 200 100 0 25 50 75 85 100 125 150 T a (。 C ) Anachip Corp. www.anachip.com.tw Rev 0.3 May 7, 2004 4/6 AH182/AH183 Low power Hall Effect Switch Marking Information (1) SOT23 (2) SIP3 (Top View) XX YM X (Top View) ID code A~Z: Non-Lead Free a~z: Lead Free ID code A~Z: Non-Lead Free a~z : Lead Free 182/183 YWW X K2: AH182 K3: AH183 Date code Y : Year M : Month (A~L) Date code Y : Year WW : Nth week Package Information (1)Package type: SIP-3L 0.51mm NOM 2.00mm 1.15mm BRANDED SURFACE 1 2 3 Sensor Location Active Area Depth 45º 0.38mm 0.7mm 1.57mm 1.47mm 0.41mm 0.41mm 3 1.27mm 4.17mm 4.04mm 2 1 45º 3.10mm 2.97mm 1.82 mm 15.50mm 13.00mm Package Dimension Anachip Corp. www.anachip.com.tw Rev 0.3 May 7, 2004 5/6 AH182/AH183 Low power Hall Effect Switch (2) Package type: SOT23-3L D 2 E HE ( Sensing point ) 0.8mm 1 3 SEE VIEW C 1.45mm e1 e θ 1(4x) 3X GAUGE PLANE A A2 0.10 C L θ 2(4x) VIEW C b(3x) Symbol A A1 A2 b C D E HE L L1 e e1 θ θ1 θ2 Dimensions In Millimeters Min. 1.05 0.05 1.00 0.25 0.08 2.70 1.50 2.60 0.30 0.50 1.80 0.85 0o 3o 6o Nom. 1.10 2.90 1.60 2.80 0.60 1.90 0.95 5o 5o 8o Max. 1.35 0.15 1.20 0.50 0.20 3.00 1.70 3.00 0.55 0.70 2.00 1.05 10o 7o 10o Anachip Corp. www.anachip.com.tw θ L1 A1 SEATING PLANE Dimensions In Inches Min. 0.041 0.002 0.039 0.010 0.003 0.106 0.059 0.102 0.012 0.020 0.071 0.033 0o 3o 6o Nom. 0.043 0.114 0.063 0.110 0.024 0.075 0.037 5o 5o 8o Max. 0.053 0.006 0.047 0.020 0.008 0.118 0.067 0.118 0.022 0.028 0.079 0.041 10o 7o 10o Rev 0.3 May 7, 2004 6/6