ah337 single phase 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 mar. 29, 2006 1/8 ? features - 4.2v to 28v dc operation voltage - temperature compensation - wide operating voltage range - open drain pre-driver - 25ma maximum sinking output current. - package: sip3, sot23 ? applications - vcd/dvd loader, cd/dvd rom - cover detector - speed measurement - home appliances - home safety ? general description ah337 is an switched hall- effect ic which is for contactless switching applications. the device includes an on-chip hall voltage generator for magnetic sensing, an amplifier that amplifies the hall voltage, a schmitt trig ger to provide switching hysteresis for noise rejection, and an open-drain output. the bandgap regulator allows a wide operating voltage range. if a magnetic flux density larger than threshold bop, do is turned on(low). the output state is held until a magnetic flux density reversal falls below brp causing do to be turned off (high). ? pin assignment 337 1 2 : gnd 3 : out 23 337 1 2 3 1 : vdd (top view) (sip package) (sot23 package) ? pin descriptions name p/i/o pin # description vdd p 1 positive power supply gnd p 2 ground out o 3 output pin ? ordering information ah337 x - x x x packing p: sip3 w: sot23 package lead l : lead free wafer body blank or a~z : if necessary to specify spread-leg ammo pack for sip-3l; blank : bulk a : tape & reel for sot23 actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 2/8 ? typical application circuit ah337 4.2v ~28v digital output vdd out gnd l r ? functional block diagrams regulator hall plate amp 2 gnd out 3 2 vdd 1 actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 3/8 ? absolute maximum ratings ( at ta=25 o c ) characteristics symbol values unit supply voltage vdd 30 v magnetic flux density b unlimited output off voltage v ds 30 v output ?on? current continuous id 25 ma operating temperature range ta -40~+125 c storage temperature range ts -65~+150 c maximum junction temp. tj 150 c sip-3l 550 mw package power dissipation sot23-3l pd 230 mw ? recommended operat ing conditions ( ta=25 o c ) paramter symbol conditions rating unit supply voltage vdd operating 4.2*~28 v *note: the output of ic will be switched after the supply voltage is over 4.2v, but the magnetic characteristics won't be normal unti l the supply is over 4.5v. ? electrical characteristics (ta=+ 25 c, vdd=12v) characteristic symbol test conditions min typ max units output saturation voltage v ds(sat) iout=10ma, b > bop - 300 400 mv output leakage current ioff b < brp - < 0.1 10 ua supply current idd output open - 2 4 ma output rise time tr rl=820 ? , cl=20pf - 0.1 1 us output falling time tf rl=820 ? , cl=20pf - 0.1 1 us ? test circuit cl 12v out rl=820 ohm cl=20 pf rl test circuit actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 4/8 ? magnetic characteristics (ta=25 c, vdd=4.5v to 28v) (1mt=10gauss) parameter symbol min. typ. max. unit operate point bop 90 120 150 gauss release point brp 30 60 90 gauss hysteresis bhys - 60 - gauss marking side s ( sip3 ) n marking side s ( sot23 ) n b h y v dd ( output voltage ) b rp b op 0 ( magnetic flux density b ) output turn off turn on ( off-state ) ( on-state ) v sat v sat ? 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 ) actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 5/8 ? performance charact eristics (sot23-3) ta ( c) 25 50 60 70 80 90 100 110 120 125 130 140 150 pd (mw) 230 184 166 147 129 110 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) ? marking information (1) sip3 (2) sot23 337 yww x date code y : year ww : nth week (top view) id code: a~z: non-lead free a~z : lead free p1:ah337 xx ym x date code y : year m :month(a~l) (top view) id code a~z: non-lead free a~z: lead free actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 6/8 ? package information (unit: mm) (1) package type: sip-3l for bulk pack active area depth sensor location 123 2.00mm 1.15mm 0.51mm nom branded surface package dimension 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 actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 7/8 ? package information (continued) (2) package type: spread leg sip-3l for ammo-pack only po w f2 f1 w1 h d0 b a l p2 p p h h a d b2 t1 t ansicht a-b view a-b dimensions in millimeters dimensions in inches symbol min. nom. max. min. nom. max. a 2.80 3.00 3.20 0.110 0.118 0.125 d 3.90 4.10 4.30 0.153 0.161 0.169 b2 0.33 0.38 0.42 0.012 0.014 0.016 d0 3.80 4.00 4.20 0.149 0.157 0.165 f1 2.35 2.55 2.75 0.092 0.100 0.108 f2 2.45 2.55 2.85 0.096 0.100 0.112 h - - 20 - - 0.787 h - - 1 - - 0.039 l - - 11 - - 0.433 p0 12.2 12.7 13.2 0.480 0.5 0.519 p2 5.95 6.35 6.75 0.234 0.25 0.265 p - - 1 - - 0.039 t - - 0.55 - - 0.021 t1 - - 1.42 - - 0.055 w 17.5 18.0 18.5 0.688 0.708 0.728 w1 5.5 6.0 6.5 0.216 0.236 0.255 ? package infor mation (continued) actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
ah337 single phase hall effect switch anachip corp. www.anachip.com.tw rev.1.2 mar. 29, 2006 8/8 (3) 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 actual package is sc-59, not sot-23 this anachip version datasheet is replaced with diodes inc. datasheet ah337 actual package is sc-59, not sot-23
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