ah337 single phase hall effect switch ah337 rev. 5 1 of 9 september 2007 www.diodes.com ? diodes incorporated lead-free ? 4.2v to 28v dc operation voltage ? temperature compensation ? wide operating voltage range ? open drain pre-driver ? 25ma maximum sinking output current ? lead free packages: sip3 (note 1) and sc59 (commonly known as sot23 in asia) ? sc59: available in ?green? molding compound (no br, sb) ? lead free finish/rohs compliant (note 2) ah337 is a switched hall-effect ic that 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 trigger to provide switching hysteresis for noise rejection, and an open-collector output. the band-gap 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). ? vcd/dvd loader, cd/dvd rom ? cover detector ? speed measurement ? home appliances ? home safety ordering information a h 3 3 7 - x x x packing p : sip3 package lead free l : lead free (note 1) -a : ammo box (note 4) -b : bulk (note 5) w : sc59 g : green -7 : taping note: 1. sip3 is available in ?lead free? product only. 2. rohs revision 13.2.2003. glass and high temperature solder exemptions applied, see eu directive annex notes 5 and 7 . note: 3. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf . 4. ammo box is for sip3 spread lead. 5. bulk is for sip3 straight lead. features general description applications tube/bulk 7? tape and reel ammo box device package code packaging (note 3) quantity part number suffix quantity part number suffix quantity part number suffix ah337-p p sip3 1000 -b na na 4000/box -a ah337-w w sc59 na na 3000/tape & reel -7 na na
ah337 single phase hall effect switch ah337 rev. 5 2 of 9 september 2007 www.diodes.com ? diodes incorporated pin assignments (1) sip3 (2) sc59 1. v dd 2. gnd 3. ( top view ) out 1.vdd 3. gnd 2. output ( top view ) pin descriptions block diagram regulator hall plate amp 2 gnd out 3 2 v dd 1 name p/i/o pin # description v dd p 1 positive power supply gnd p 2 ground out o 3 output pin
ah337 single phase hall effect switch ah337 rev. 5 3 of 9 september 2007 www.diodes.com ? diodes incorporated ah337 4.2v ~28v output v dd gnd l r absolute maximum ratings (t a = 25 o c) symbol characteristics values unit v dd supply voltage 30 v b magnetic flux density unlimited v ds output off voltage 30 v i d output ?on? current continuous 25 ma t st storage temperature range -65~+150 c t j(max) maximum junction temperature 150 c sip3 550 mw p d package power dissipation sc59 230 mw recommended oper ating conditions symbol parameter conditions min max unit t a operating ambient temperature operating -40 125 c typical application circuit
ah337 single phase hall effect switch ah337 rev. 5 4 of 9 september 2007 www.diodes.com ? diodes incorporated electrical characteristics (t a = + 25 c, v dd = 12v) symbol characteristic test conditions min typ max unit v dd supply voltage 4.2 (note 6) - 28 v v ds (sat) output saturation voltage i out = 10ma, b > bop - 300 400 mv i off output leakage current b < brp - < 0.1 10 ua i dd supply current output open - 2 4 ma note: 6. the output of ic will be switched after the supply voltage is over 4.2v, but the magnetic characteristics won't be normal until the supply is over 4.5v. magnetic characteristics (t a = 25 c, v dd = 4.5v to 28v) (1mt = 10 gauss) symbol parameter min typ. max unit bop operation point 90 120 150 gauss brp release point 30 60 90 gauss bhys hysteresis - 60 - gauss operating characteristics marking side s (sip3) n marking side s (sc59) n b hy v sat v dd ( output voltage ) b rp b op 0 ( magnetic flux density b ) output turn off turn on ( off -state ) (on-state )
ah337 single phase hall effect switch ah337 rev. 5 5 of 9 september 2007 www.diodes.com ? diodes incorporated performance characteristics (1) sip3 t a ( c) 25 50 60 70 80 85 90 95 100 p d (mw) 550 440 396 352 308 286 264 242 220 t a ( c) 105 110 115 120 125 130 135 140 150 p d (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 t a (c ) p d (m w ) (2) sc59 t a ( c) 25 50 60 70 80 90 100 110 120 125 130 140 150 p d (mw) 230 184 166 147 129 110 92 74 55 46 37 18 0 p ow er d issipation c urve 0 100 200 300 0 25 50 75 100 125 150 t a (c) p d (m w )
ah337 single phase hall effect switch ah337 rev. 5 6 of 9 september 2007 www.diodes.com ? diodes incorporated marking information (1) sip3 y ww x ( top view ) y : year : "7" = 2007 "8" = 2008 ww : nth week 01~52 x : internal code 337 a~z : lead free (2) sc59 (commonly known as sot23 in asia) xx y m x ( top view ) xx : p1 : ah337 y : year 0~9 m: month a~l x : internal code a~z : lead free a~z : green part number package identification code ah337 sc59 p1
ah337 single phase hall effect switch ah337 rev. 5 7 of 9 september 2007 www.diodes.com ? diodes incorporated package information ( unit: mm ) (1) package type: sip3 for bulk only active area depth sensor location 123 2.00mm 1.15mm 0.51mm nom branded surface package dimension
ah337 single phase hall effect switch ah337 rev. 5 8 of 9 september 2007 www.diodes.com ? diodes incorporated package information (continued) (2) package type: sip3 for ammo pack-only (3) sc59 (commonly known as sot23 in asia) 0.35/0.50 0.10/0.20 0.013/0.10 0.35/0.55 0.95 2.70/ 3.00 2.90/3.10 1.00/ 1.30 1.50/ 1.70 1.90 top view 0/8
ah337 single phase hall effect switch ah337 rev. 5 9 of 9 september 2007 www.diodes.com ? diodes incorporated important notice life support diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to any product herein. diodes incorporated does not assume any liability arising out of the application or use of any pr oduct described herein; neither does it convey any license under its patent rights, nor the rights of others. the user of products in such applications shall a ssume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on our website, harmless against all dam ages. diodes incorporated products are not authorized for use as critical components in life support devices or systems without the e xpressed written approval of the president of diodes incorporated.
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