asahi kasei electroncis co., ltd. hall ic EM-1681 ????f???e???i??2?????????????{?z?[???y?[?w?`?a??u?d?v????????v?e???-????y?-???3??b ?? ???h?\?? functional block diagram ?? ??d?????? operational characteristics ???p???x???????d?? idd pulse driving idd on (typ=3ma) 50msec 48 ? sec idd (typ=5 ? a) idd off (typ=4 ? a) idd time 1 2 s or n n or s 1:vdd 2:output 3:n.c 4:vss marking v ol bhs brps bops v o h l magnetic flux density 0 bopn brpn bhn ?{ dynamic offset cancellation osc & timing lo g ic hall element chopper stabilizer a mplifier schmitt trigger & latch output stage switch ?? ?? ?? ?? ?? ?? ?? ?? 1 ?f vdd 2 ?f output 4 ?f vss
EM-1681 asahi kasei electronics co., ltd. ????????i absolute maximum ratings ?ita=25???j ?? ? parameter ?l ?? symbol ? ?i limit ?p ? unit ?d?1?d?3 supply voltage vdd -0.1 ?` 5.0 v ?o??d?? output current iout ?} 1 ma ???????x operating temperature range topr ?| 30 ?` +85 ?? ??????x?? storage temperature range tstg ?| 40 ?` +125 ?? ?? ??c????@?y???d?c?i????ita=25?? vdd=3.0v?j magnetic specifications ?@ and electrical specifications ?? ? parameter ?l ?? symbol ?a??e?? test conditions ?? ?? min. ?w ?? typ. ?? ?? max. ?p ? unit ????d?3?? supply voltage vdd 2.4 3.0 3.3 v ?o? h ? l ?????x operating point bops ?b bopn ?b * 2.0 3.0 4.0 mt ?o? l ? h ?????x release point brps ?b brpn ?b 1.2 2.2 * 3.2 mt ?q?x?e???v?x?? hysteresis bhs bhn * 0.3 0.8 * 1.5 mt ?p???x????? period tp 50 100 ms ?o? high ?d?3 output high voltage v oh io=-1.0ma vdd-0.4 v ?o??o?a?d?3 output low voltage v ol io=+1.0ma 0.4 v ?d?1?d?? supply current idd ?????l average 5 7 ? a ?| 1mt=10gauss ?u * ?v ???d?l??a?????y?v???????????b the characteristics with ?u * ?v marks are design targets.
EM-1681 asahi kasei electronics co., ltd. ????c????a ?ita=-30???`+85?? vdd=3.0v?j magnetic specifications ?a ?? ? parameter ?l ?? symbol ?a??e?? test conditions ?? ?? min. ?w ?? typ. ?? ?? max. ?p ? unit ?o? h ? l ?????x operating point bops ?b bopn ?b 1.8 3.0 4.2 mt ?o? l ? h ?????x release point brps ?b brpn ?b 1.0 2.2 3.4 mt ?q?x?e???v?x?? hysteresis bhs bhn 0.3 0.8 1.5 mt * ?{?????y?v???????????b *the above specifications are design targets. ?? ?w????x??? typical temperature dependance -4 -3 -2 -1 0 1 2 3 4 -30-20-100 1020304050607080 ambient temperature [ ??] switch points [mt] brps brpn bopn bops vdd=3v
EM-1681 asahi kasei electronics co., ltd. ?? ???d?3?? supply voltage 2.2 2.4 2.6 2.8 3 3.2 3.4 -40 -20 0 20 40 60 80 100 ambient temperature?@?i???j supply voltage?@(v) ???o?`???@ package dimensions ?i mm ?j
EM-1681 asahi kasei electronics co., ltd. ??????^?c?~???o?} function timing chart ?|?{?d?l? 2004 ?n 11 ?????y???????b??e??\???3?-???x??????a??????b idd ?? b ?? v out ?? bop high low idd ?? b ?? v out ?? brp high low operate point timing release point timing
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