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| the a3260-- hall-effect bipolar switch is an extremely temperature-stable and stress-resistant sensor especially suited for operation over extended temperature ranges to +150 c. superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. the device includes on a single silicon chip a voltage regulator, hall-voltage generator, small-signal amplifier, chopper stabilization, schmitt trigger, and a constant-current open-collector output. a south pole of sufficient strength will turn the output off. an on-board regulator permits operation with supply voltages of 3.5 to 24 volts. noise radiation is limited by control of the output current slew rate. the first character of the part number suffix determines the device operating temperature range; suffix eC is -40 c to +85 c and lC is -40 c to +150 c. three package styles provide a magnetically opti- mized package for most applications. suffix Clh is a miniature sot23w low-profile surface-mount package, Clt is a miniature sot89/to-243aa transistor package for surface-mount applications; while suffix Cua is a three-lead ultra-mini-sip for through-hole mounting. data sheet 27631.50 features internal current regulator for 2-wire operation output slew rate controlled resistant to physical stress superior temperature stability operation from unregulated supply reverse battery protection solid-state reliability small size always order by complete part number: the prefix 'a' + the basic four-digit part number + a suffix to indicate operating temperature range + a suffix to indicate package style, e.g., a3260elh . 3260 2-wire, chopper-stabilized, precision hall-effect bipolar switch suffix code 'lh' pinning (sot23w) supply voltage, v cc ........................... 27 v reverse battery voltage, v rcc .......... -16 v magnetic flux density, b ........... unlimited package power dissipation, p d . see graph junction temperature, t j ............... +170 c operating temperature range, t a suffix eC .................. -40 c to +85 c suffix lC ................ -40 c to +150 c storage temperature range, t s .............................. -65 c to +170 c absolute maximum ratings at t a =+25 c nc x supply ground 12 3 dwg. ph-003-5 no (internal) connection pinning is shown viewed from branded side.
!!"+ # &;!" 4&? !!" b" 1c1" " $ # $ 78# % ! 4 # d & ?%&8$ dwg. fh-020-4 x dynamic offset cancellation supply reg. sample & hold low-pass filter to all subcircuits ground 9 $ x dwg. ph-003-7a supply ground ground x dwg. ph-003-6 supply ground no (internal) connection nc www.allegromicro.com # # #9535&' '435&'55& 4', 0&5&/'5,'/ :4-; ,' ' , ! :3 !& ', ! "" ! #$ % " &'( )*) #+ ,#$ #+ &'- ).) / %% %#$ % " !012 3 " 4 + 4 5-6 7/ 88 " ( 9 + 0 +#$ : #+ ; ! ;8 " ( 9 + 0 : : + ; /<;) " "" /"" 9%, 4 4 %$ 4', 0&5&/'5,'/ :4-; ,' ' , ! :3 !& ', ) 4%++ & /; ) / + %+ 4 & - ;;; ) ; ) ) / #+ + 4 & ! %$ # # #9535&' ,33;:9;'& & '435&'55& , +(.%< !$ @ e " # > ## e!> $ $! bfc g $! bc$ +(.%< !$; (9 e b ())c,; :9 e b (+c$ $ @ e " # > ## e!> $ !!"+ # &;!" 4&? !!" b" 1c1" " $ # $ &/<& 8, &'5=> &/<& 8, &'5,= >& ? @ ? & $ 0.038" 0.96 mm dw g . mh-025 0.011" 0.28 mm nom active area depth 0.059" 1.49 mm a 0.045" 1.14 mm dw g . mh-008-8a 0.0305" 0.775 mm nom active area depth 0.088" 2.24 mm a dwg. mh-011-9b 0.0195" 0.50 mm nom branded surface active area depth 0.080" 2.04 mm 0.056" 1.44 mm a &/<& 8, &'5= > 600 400 200 20 60 100 140 0 ambient temperature in c allowable package power dissipation in milliwatts dwg. gh-046-2d suffix "eua" r ja = 165 c/w 40 80 120 180 700 500 300 100 160 suffix "elt" r ja = 180 c/w 800 suffix "ee" suffix "le" suffix "elh" r ja = 228 c/w allegro www.allegromicro.com $ $ # $ 8 # # $ 0335@'&-;a /0 b g & g 3 & & $ g g & & $ g $ 4 $ $ ' g & $ && $ 35&' (+ b c b; :9 c$ (+& g b8 f+@b c c$4 b c b; (9 c& g ())b8 f+@b2c c$+ & g $ b; c $ $ 9 b ; (9 ; :9 c $ ; (9 ; :9 $ ; g , $ dwg. eh-012 reg sample & hold x +v hall voltage b + ? dwg. ah-011-2 0 +b 0 output current flux density dwg. gh-034-6 -b +i i out + i cc b rp b op i cc !!"+ # &;!" 4&? !!" b" 1c1" " , . < h hall-effect ic applications guide q-eggasicosu:-kuol-ettw - hall-effect devices: soldering, gluing, potting, encapsulating, and lead forming q-eggasicosu:-kuol-etfutw - soldering of through-hole hall-sensor dervices q-eggasicosu:-kuol-etfw-c:p - soldering of surface-mount hall-sensor devices q-eggasicosu:-kuol-etfueu udl-plocsalp-pldidsgosu:d-up-oal-iauggld docnsasolp-isdi,so-ugldcosu:-ic:-nl-pu,:p-s: - monolithic magnetic hall sensor using dynamic quadrature offset cancelation q-hlia:sica-qcgld-yhq-7 ttw-c:p - chopper-stabilized amplifiers with a track-and-hold signal demodulator q-hlia:sica-qcgld-yhq-77 tu eaa-cdl-gdulsplp-co 333maooetnmgu2nmm2mg 1o-sd-dodu:fag-dliurrl:plp-oaco-c:-lsold:ca-nggcdd-icgcis oud-nl-iu::liolp-s:-iaudl-gdussrsog-ou-oal-icaa-dl:dud-nlovll: oal-d,ggag-c:p-fdu,:p-up-oal-pllsil-ou-dlp,il-nuoa-lsold:ca :usdl-c:p-:usdl-fl:ldcolp-ng-oal-iauggld docnsasocosu:-olia :s,lu 100 dwg. eh-011-2a 0.1 f supply x 'ua' package 0.95 v e + # # $#$ ! # $ www.allegromicro.com = 7 % 8 #%$ 3;"$ ; 8 8 dwg. ma-010-3d mm 12 0.15 0.00 0.20 0.127 2.10 1.85 3.00 2.70 0.95 bsc 0.55 ref 0.50 0.30 3 1.13 0.87 0 to 8 0.25 min gauge plane seating plane 0.25 bsc 3.10 2.90 +(.%< !$ 3 $@ b c$ $ . 0 $ $ $ *$ 4 & $ "$ j2j $ dwg. ma-011-3 mm 12 1.00 2.40 0.95 0.70 3 dwg. ma-010-3d in 12 0.006 0.000 0.0079 0.0050 0.083 0.073 0.118 0.106 0.037 bsc 0.022 ref 0.020 0.012 3 0.045 0.032 0 to 8 0.010 min gauge plane seating plane 0.010 bsc 0.122 0.114 dwg. ma-011-3 in 12 0.039 0.094 0.03 7 0.028 3 84 , , # /0, 3 32 84 , , !;;4'5, 2 !8; ; !!"+ # &;!" 4&? !!" b" 1c1" " dwg. ma-009-3a in 1 23 0.072 0.064 0.167 0.155 0.059 bsc 0.0189 0.0142 0.047 0.035 0.102 0.090 0.063 0.055 0.0173 0.0138 0.090 0.084 0.0221 0.0173 0.118 bsc 0.181 0.173 dwg. ma-009-3a mm 1 23 4.60 4.40 1.83 1.62 4.25 3.94 1.50 bsc 0.48 0.36 1.20 0.89 2.60 2.29 1.60 1.40 0.44 0.35 2.29 2.13 0.56 0.44 3.00 bsc 7 % 8 #%$ + cde @f 2 84 , , # /0, 3 32 84 , , !;;4'5, 2 !8; ; 13 b 2.5 0.8 2.6 1.2 4.6 2.0 dwg. ma-012-3 mm pads 1, 2, 3, and a ? standard sot89 layout pads 1, 2, 3, and b ? low-stress version pads 1, 2, and 3 only ? lowest stress, but not self aligning 2 0.7 typ 0.8 typ a +(.%< !$. 0 $ $% 3 3b" c j:j $ $( b * #c g %(15 $ 1 b 0.098 0.031 0.102 0.047 0.181 0.079 dwg. ma-012-3 in pads 1, 2, 3, and a ? standard sot89 layout pads 1, 2, 3, and b ? low-stress version pads 1, 2, and 3 only ? lowest stress, but not self aligning 2 0.028 typ 0.031 typ a 3 www.allegromicro.com 84 , , # /0, 2 !8; ; 84 , , !;;4'5, 3 32 7 % 8 #%$ g h +(.%< !$ 3 $@ b c$ $ . 0 $ $ $ *$ : 94; $ "jb $15c$ "$ 4 & $ $ % 3 3b" c$ dwg. mh-014e in 0.164 0.159 0.062 0.058 0.0173 0.0138 0.050 bsc 45 0.640 0.600 0.0189 0.0142 0.085 max 45 0.031 123 0.122 0.117 see note dwg. mh-014e mm 4.17 4.04 1.57 1.47 0.44 0.35 1.27 bsc 45 16.26 15.24 0.48 0.36 2.16 max 45 0.79 123 3.10 2.97 see note &&;& 54+55 @2 +(.< 2 g $+ 3 3 b" c$ 0.620" 0.500" (15.7 mm 12.7 mm) 0.100" (2.5 mm) dwg. mh-026 0.108" (2.74 mm) 123 !!"+ # &;!" 4&? !!" b" 1c1" " %+ the products described herein are manufactured under one or more of the following u.s. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending. allegro microsystems, inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. before placing an order, the user is cautioned to verify that the information being relied upon is current. allegro products are not authorized for use as critical components in life-support appliances, devices, or systems without express written approval. the information included herein is believed to be accurate and reliable. however, allegro microsystems, inc. assumes no responsi- bility for its use; nor for any infringements of patents or other rights of third parties that may result from its use. |
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