ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 1 of 7 february 2009 www.diodes.com ? diodes incorporated ? micropower operation ? operation with north or south pole ? 1.65 to 3.3v battery operation ? chopper stabilized ? superior temperature stability ? extremely low switch-point drift ? insensitive to physical stress ? good rf noise immunity ? -40 c to 85 c operating temperature ? esd 4kv in human body mode ? sot553: available in ?green? molding compound (no br, sb) ? lead free finish/rohs compliant (note 1) ah1886 is with two hall effect plates and dual cmos output driver, mainly designed for battery?powered, hand-held equipment (such as cellular and cordless phone, pda). the total operation power is down to 15uw in the 1.8v supply. either north or south pole of sufficient strength will turn the output1 on. the output1 will be turned off under no magnetic field. while the magnetic flux density (b) is larger than operate point (bop) , the output1 will be turned on (low), the output1 is held until b is lower than release point (brp), then turned off. applications ? cellular phone ? pda ? cordless phone ordering information ah 1886 - z g - 7 packing package green z : sot553 g : green 7 : tape & reel device package code packaging (note 2) 7? tape and reel quantity part number suffix AH1886-ZG-7 z sot553 3000/tape & reel -7 notes: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied, see eu directive 2002/95/ec annex notes . 2. 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. features general description
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 2 of 7 february 2009 www.diodes.com ? diodes incorporated 5 4 3 2 1 sot553 gnd out 1 nc out 2 vdd ( top view ) pin name p/i/o pin # description out 2 o 1 output pin (complement of out 1) gnd p/i 2 ground nc 3 no connection vdd p/i 4 power supply voltage out 1 o 5 output pin (active low) out2 gnd logical latch latch power switch vdd hall plate amp offset cancelling hall plate amp offset cancelling out1 gnd vdd pin assignment pin descriptions block diagram
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 3 of 7 february 2009 www.diodes.com ? diodes incorporated typical circuit ah1886 vdd output 1 gnd output 2 (complement of output 1) absolute maximum ratings (at t a = 25 c) symbol characteristics values unit vdd supply voltage 5 v b magnetic flux density unlimited t a operating temperature range -40 to +85 c ts storage temperature range -65 to +150 c p d package power dissipation 230 mw t j maximum junction temperature 150 c symbol parameter conditions rating unit vdd s upply voltage operating 1.65~3.3 v recommended oper ating conditions (t a = 25 c)
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 4 of 7 february 2009 www.diodes.com ? diodes incorporated symbol characteristic conditions min typ. max unit v oh output on voltage (high side) i o = -0.5ma vdd-0.2 - - v v ol output on voltage (low side) i o = 0.5ma - - 0.2 v ioff output leakage current output off - < 0.1 1 a idd(en) supply current chip enable - 2 4 ma idd(dis) chip disable - 5 8 ua idd(avg) average supply current - 7 12 ua tawake a wake time - 50 100 s tperiod period - 50 100 ms d.c. duty cycle - 0.1 - % magnetic characteristics (t a = 25 c, vdd = 1.8v~3.0v) (note 3) (1mt=10 gauss) symbol characteristic (note 4) min typ. max unit bops(south pole to brand side) operate point - 37 55 gauss bopn ( north pole to brand side ) -55 -37 - brps(south pole to brand side) release point 6 29 - brpn(north pole to brand side) - -29 -6 bhy( brpx bopx ? ) hysteresis 3 8 - notes: 3. typical data is at ta = 25 c, vdd = 3v, and for design information only. 4. operate point and release point will vary with supply voltage and operating temperature. b hy v sat v cc ( output voltage ) b opn b rpn 0 ( magnetic flux density b ) output1 turn on turn off ( off-state ) ( on-state ) b hy v sat v cc ( output voltage ) b rps b ops 0 ( magnetic flux density b ) output1 turn off turn on ( off-state ) ( on-state ) electrical characteristics (t a = +25 c, vdd = 1.8v; unless otherwise specified)
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 5 of 7 february 2009 www.diodes.com ? diodes incorporated switching point supply current typical operating characteristics a h1886 idd(avg.) vs vdd (ta=25 c) 0 2 4 6 8 10 12 1.8 2.3 2.8 vdd(v) idd(avg.) unit: ua icc (avg) u a a h1886 idd(avg.) vs temperature 2 3 4 5 6 7 8 9 10 - 50 - 25 0 25 50 75 100 temperature idd(avg.) unit : ua vdd = 1.8v vdd = 2.5v a h1886 hysteresis vs vdd (ta =25 c) - 60 - 40 - 20 0 20 40 60 1.8 2.3 2.8 vdd(v) gauss (g) brpn bopn brps bops bhys_n bhys_s a h1886 hysteresis vs temperature (vdd = 1.8v) - 50 - 40 - 30 - 20 - 10 0 10 20 30 40 50 - 50 -25 0 25 50 75 100 temperature gauss(g) brpn bopn brps bops bhys_n bhys_s
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 6 of 7 february 2009 www.diodes.com ? diodes incorporated performance characteristics t a ( c) 25 50 60 70 80 85 90 100 110 120 130 140 150 p d (mw) 230 184 166 147 129 120 110 92 74 55 37 18 0 power dissipation curve 0 100 200 300 0 25 50 75 100 125 150 t a ( c) p d (m w ) 85 marking information (1) sot553 ( top view ) y : year : 0~9 x : a~z : green xx : identification code w : week : a~z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week xx y w x part number package identification code ah1886 sot553 kt
ah1886 micropower, ultra-sensitive hall effect switch ah1886 rev. 2 7 of 7 february 2009 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) package type: sot553 1.0typ. 0.2(5x) 0.30 c 0.10 m c a-b d b 1.10/1.25 0.1 c l c l 1.55/1.70 d 0.30 c d 6 ~ 8 0.10/0.18 0.55/0.62 1.50/1.70 0.30 c d a 6 ~ 8 6 ~ 8 0.10/0.20 bottom view top view top package btm package hall sensor 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 assume 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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