AH182/ah183 low power hall effect switch 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 ? 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 - low profile 3 pin sip/sot23 package ? applications - cover detector - speed measurement - home safety ? pin assignments (sip3 package) ( sot23 package) 1. vcc 2. gnd 3. 1. vcc 3. gnd 2. (top view) output output ? general description 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. ? pin descriptions name p/i/o pin # description vcc p/i 1 power supply input gnd p 2 ground output o 3 output pin ? ordering information AH182/ah183 x -x x x packing blank : tube or bulk a : tape & reel p: sip-3l w: sot23-3l package lead l : lead free blank: normal wafer body blank or a~z : if necessary to specify cmos hall-effect switch
AH182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev 0.3 may 7, 2004 2/6 ? block diagram 1 reg./switch hall plate amp output 3 vcc gnd 2 offset cancelling latch ? typical circuit AH182/ ah183 2.5~5.5v digital output vcc output gnd r l ? absolute maxi mum ratings (ta = 25 c) characteristics symbol values unit supply voltage v cc 7 v magnetic flux density b unlimited operating temperature range ta -40 to +85 c storage temperature range ts -65 to +170 c sip3 550 mw package power dissipation pd sot23-3 230 mw maximum junction temp tjc 150 c
AH182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev 0.3 may 7, 2004 3/6 ? electrical characteristics ( ta = +25 c, vcc = 3v ) characteristic symbol conditions min typ max unit supply voltage vcc operating 2.5 3 5.5 v output on voltage vout iout=1ma 0.1 0.3 v output leakage current ioff vout=5.5v, b < brp < 0.1 1 a icc(en) chip enable 2.0 ma icc(dis) chip disable 8.0 ua icc(avg) AH182:average supply current 5 10 ua supply current icc(avg) ah183:average supply current 280 500 ua awake time tawake 50 100 s AH182 50 100 ms period tperiod ah183 200 400 us AH182 0.1 % duty cycle d.c. ah183 25 % ? test circuit 1 3 2 182/183 vcc 2.5-5.5v pull up resistor ? magnetic characteristics (ta=-40 c to +85 c) (1mt=10 gauss) characteristic symbol min typ max unit operate point bop -- 40 60 release point brp 10 30 -- hysteresis bhy(bop-brp) -- 10 -- gauss
AH182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev 0.3 may 7, 2004 4/6 marking side s ( sip3 ) n marking side s ( sot23 ) n b hy v sat v cc ( output voltage ) b rp b op 0 ( magnetic flux density b ) output turn off turn on ( off-state ) ( on-state ) ? 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 power dissipation curve 100 200 300 400 500 600 0 25 50 75 100 125 150 ta ( c) pd (mw ) 85
AH182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev 0.3 may 7, 2004 5/6 ? marking information (1) sot23 (2) sip3 k2: AH182 k3: ah183 xx ym x date code y : year m : month (a~l) (top view) id code a~z: non-lead free a~z: lead free 182/183 yww x date code y : year ww : nth week (top view) id code a~z: non-lead free a~z : lead free ? package information (1)package type: sip-3l active area depth sensor location 123 2.00mm 1.15mm 0.51mm nom branded surface 1.57mm 1.47mm 4.17mm 4.04mm 1.82 mm 15.50mm 13.00mm 1 2 3 1.27mm 0.41mm 0.41mm 45 o 45 o 0.38mm 0.7mm 3.10mm 2.97mm package dimension
AH182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev 0.3 may 7, 2004 6/6 (2) package type: sot23-3l l e e he d a2 a1 b(3x) a see view c view c l1 1(4x) 2(4x) e1 gauge plane seating plane c 0.10 3x 2 1 3 1.45mm 0.8mm ( sensing point ) dimensions in millimeters dimensions in inches symbol min. nom. max. min. nom. max. a 1.05 - 1.35 0.041 - 0.053 a1 0.05 - 0.15 0.002 - 0.006 a2 1.00 1.10 1.20 0.039 0.043 0.047 b 0.25 - 0.50 0.010 - 0.020 c 0.08 - 0.20 0.003 - 0.008 d 2.70 2.90 3.00 0.106 0.114 0.118 e 1.50 1.60 1.70 0.059 0.063 0.067 he 2.60 2.80 3.00 0.102 0.110 0.118 l 0.30 - 0.55 0.012 - 0.022 l1 0.50 0.60 0.70 0.020 0.024 0.028 e 1.80 1.90 2.00 0.071 0.075 0.079 e1 0.85 0.95 1.05 0.033 0.037 0.041 0 o 5 o 10 o 0 o 5 o 10 o 1 3 o 5 o 7 o 3 o 5 o 7 o 2 6 o 8 o 10 o 6 o 8 o 10 o
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