1/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 2010 AX8101/a micropower, ultra-sensitive hall effect switch ? general description ax 8101/a is a three-terminal hall effect sensor device with a output driver, mainly designed for battery C operation, hand-held equipment (such as cellular and cordless phone, pda). after power-on, AX8101 /a will detect and setup the operating pole (north or south) to avoid another side magnetic noise (patent pending) . for AX8101, 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; the output is latched until b is lower than release point (brp). ? features - micro power operation for battery applications - 2.4v to 5.5v battery operation - chopper stabilized technology - operation with north or south pole - high sensitivity and high stability of the magnetic switching points - 3-pin sot- 23 /thin sot- 23 pb -free packages ? b lock d iagram o ffset cancellation latch vout gnd vdd + - n- mos awake/sleep t iming control hall plate p ower-on reset n/s pole de tection and setup v?mw`r?y?b? w w w . g o f o t e c h . c o m
2/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 20 10 AX8101/a ? pin assignme t name description vdd power input gnd ground out put AX8101: b>bops or b brpn, output is high. AX8101a: b>bops or b brpn, output is low. ? order/marking information order information top marking ? absolute maximum ratings (at t a =25 c ) characteristics symbol rating unit vdd pin voltage v dd - 0.3 to 6 v v output pin voltage v out - 0.3 to 6v v output current i out 2 ma storage temperature range t st - 65 to +150 c junction tempe rature t j +125 c operating temperature range t op - 4 0 to + 8 5 c thermal resistance from junction to ambient ja 550 c /w power dissipation[ pd= ( t j - t a ) / ja ] pd 230 m w note : ja is measured with the pcb copper area of approximately 1 in 2 (multi - laye r). ( s o t - 2 3 - 3 l / t s o t - 2 3 - 3 l ) g n d v d d a x 8 1 0 1 / a 3 v o u t 2 2 1 ( t o p v i e w ) p a c k a g e t y p e r : s o t - 2 3 - 3 l a x 8 1 0 1 x x x x p a c k i n g b l a n k : b a g a : t a p i n g o u t p u t b l a n k : p u l l h i g h a : p u l l l o w r t : t s o t - 2 3 - 3 l l l y w x identification code h 1 : ax 8101 h 2 : ax 8101 a ww : 01 ~ 26 ( a ~ z ) 27 ~ 52 ( a ~ z ) year : a = 2010 1 = 2011 id code : internal v?mw`r?y?b? w w w . g o f o t e c h . c o m
3/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 20 10 AX8101/a ? e lectrical c haracteristics (v dd = 2.75v, t a =25c, unless otherwise specified) characteristics symbol conditions min typ max units supply voltage v dd 2.4 - 5.5 v supply current i dd awake state - 2 4 ma sleep state - 7 12 ua average - 9 1 6 ua output saturation voltage v o sat i out =1ma - 0.1 0.3 v output leakage current i o - leak v out =5.5v, b b ops or AX8101: b n vout 0 s bopn brpn b n vout brps bops 0 s or high state low state high state low state v?mw`r?y?b? w w w . g o f o t e c h . c o m
4/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 20 10 AX8101/a 2. AX8101a : ? a pplication c ircuit ? t ypical c haract eristics b n vout 0 s bopn brpn b n vout brps bops 0 s or high state high state low state low state ax 8101 / a 3 2 2 + - 2 . 4 ~ 5 . 5 v output 2 1 50 k 1 . 45 mm 0 . 8 mm ( top view ) sensor location 0 5 10 15 20 25 30 35 40 45 50 2.5 3 3.5 4 4.5 5 5.5 6 vdd (v) average supply current (ua) vdd vs average supply current 0 2 4 6 8 10 12 14 16 18 20 -50 -25 0 25 50 75 100 ?? ???3?:? average supply current (ua) temperature vs average supply current -50 -40 -30 -20 -10 0 10 20 30 40 50 2 2.5 3 3.5 4 4.5 5 5.5 vdd (v) switch points (gauss) vdd vs switch points b ops b rps b opn b rpn -50 -40 -30 -20 -10 0 10 20 30 40 50 -50 -25 0 25 50 75 100 ?? ???3?:? switch points (gauss) temperature vs switch points b ops b rps b opn b rpn v?mw`r?y?b? w w w . g o f o t e c h . c o m
5/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 20 10 AX8101/a ? p ackage o utlines (1) sot - 23- 3l symbol dimensions in millimeters dimensions in inches min. nom. max. min. nom. max. a - - 1.45 - - 0.057 a1 0.00 0.08 0.15 - - 0.006 a2 0.90 1.10 1.30 0.035 0.043 0.051 b 0.30 0.40 0.50 0.012 0.016 0.020 c 0.08 0.15 0.22 0.003 0.006 0.009 d 2.70 2.90 3.10 0.106 0.114 0.122 e 2.60 2.80 3.00 0.102 0.110 0.118 e1 1.40 1.60 1.80 0.055 0.063 0.071 l 0.30 0.45 0.60 0.012 0.018 0.024 l1 0.50 0.60 0.70 0.020 0.024 0.028 e 1.9 bsc 0.075 bsc e1 0.95 bsc 0.037 bsc 0 o 4 o 8 o 0 o 4 o 8 o jedec outline: na l e e 1 e d a 2 a 1 b a view c l 1 e 1 gauge plane c see view c v?mw`r?y?b? w w w . g o f o t e c h . c o m
6/6 axelite confidential materials, do not copy or distribute without written consent . rev. 1. 3 a ug . 24 , 20 10 AX8101/a (2) tsot - 23- 3l symbol dimensions in millimeters dimensions in inches min. nom. max. min. nom. max. a 0.75 - 0.90 0.030 - 0.035 a1 0.00 - 0.10 0.000 - 0.004 a2 0.70 0.75 0.80 0.028 0.030 0.031 b 0.35 - 0.51 0.014 - 0.020 c 0.10 - 0.25 0.004 - 0.010 d 2.80 2.90 3.00 0.110 0.114 0.118 e 2.60 2.80 3.00 0.102 0.110 0.118 e1 1.50 1.60 1.70 0.059 0.063 0.067 e 0.95 bsc. 0.037 bsc. e1 1.90 bsc. 0.075 bsc. l 0.37 - - 0.015 - - l1 0.60 ref. 0.024 ref. l2 0.25 bsc. 0.010 bsc. y - - 0.10 - - 0.004 r 0.10 - - 0.004 - - 0 o - 8 o 0 o - 8 o 1 7 o nom. 7 o nom. 2 5 o nom. 5 o nom. e 1 e e e 1 b d a a 1 a 2 y 2 4 x 1 l 1 r l v?mw`r?y?b? w w w . g o f o t e c h . c o m
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