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. 1.2 jan. 09, 2006 1/7 ? 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 - sip3/sot23 package ? applications - cover detector - speed measurement - home safety ? pin assignments (sip3 package) ( sot23 package) 1. vdd 2. gnd 3. 1. vdd 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 vdd 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 : bulk a : tape & reel p: sip3 w: sot23 package lead l : lead free 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. 1.2 jan. 09, 2006 2/7 ? block diagram 1 reg./switch hall plate amp output 3 vdd gnd 2 offset cancelling latch ? typical circuit ah182/ ah183 2.5~5.5v digital output output gnd r l vdd ? absolute maxi mum ratings (ta = 25 c) characteristics symbol values unit supply voltage vdd 7 v magnetic flux density b unlimited operating temperature range ta -40 to +85 c storage temperature range ts -65 to +150 c sip3 550 mw package power dissipation pd sot23-3 230 mw maximum junction temp tjc 150 c output current io 10 ma
ah182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev. 1.2 jan. 09, 2006 3/7 ? electrical characteristics ( ta = +25 c, vdd = 3v ) characteristic symbol conditions min typ max unit supply voltage vdd 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 idd(en) chip enable - - 2.0 ma idd(dis) chip disable - - 8.0 ua idd(avg) ah182:average supply current - 5 10 ua supply current idd(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 3v (recommended:50k ) pull up resistor
ah182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev. 1.2 jan. 09, 2006 4/7 ? magnetic characteristics (ta=+25 c, vdd=5v) (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 marking side s ( sip3 ) n marking side s ( sot23 ) n b h y v sat vdd ( 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 pd (mw) 550 440 396 352 308 286 264 242 220 ta ( c) 105 110 115 120 125 130 135 140 150 pd (mw) 198 176 154 132 110 88 66 44 0 power dissipation curve 0 100 200 300 400 500 600 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. 1.2 jan. 09, 2006 5/7 ? performance characteristics (continued) (sot23-3) ta ( c) 25 50 60 70 80 85 90 100 110 120 125 130 140 150 pd (mw) 230 184 166 147 129 120 110 92 74 55 46 37 18 0 power dissipation curve 0 100 200 300 0 25 50 75 100 125 150 ta ( c) pd (mw) 85 ? 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
ah182/ah183 low power hall effect switch anachip corp. www.anachip.com.tw rev. 1.2 jan. 09, 2006 6/7 ? package information (continued) (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. 1.2 jan. 09, 2006 7/7 ? package informat ion (continued) (2) package type: sot23-3l e e he d a2 a1 b(3x) a 2(4x) e1 2 1 3 1.45mm 0.8mm ( sensing point ) 1(4x) l view c l1 gauge plane c see view c m 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 - 0.60 0.012 - 0.024 l1 0.50 0.60 0.70 0.020 0.024 0.028 m 0.73 0.78 0.83 0.029 0.031 0.033 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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