ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 1 of 7 www.diodes.com june 2010 ? diodes incorporated description ah1883 is with two hall effect plates and a 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 su fficient strength will turn the output on. 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 (low), the output is held until b is lower than release point (brp), then turned off. pin assignments 5 4 3 2 1 sot553 gnd output nc nc vdd ( top view ) features ? micropower operation ? operation with north or south pole ? 1.65v 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) (note 1) applications ? cellular phone ? pda ? cordless phone notes: 1. eu directive 2002/95/ec (rohs). all applicabl e rohs exemptions applied. please visit our website at http://www.diodes.com/products/lead_free.html . typical application circuit ah1883 vdd output gnd
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 2 of 7 www.diodes.com june 2010 ? diodes incorporated pin descriptions pin name p/i/o pin # description nc 1 no connection gnd p/i 2 ground nc 3 no connection vdd p/i 4 power supply voltage output o 5 output pin ( active low ) functional block diagram logical latch latch power switch vdd hall plate amp offset cancelling hall plate amp offset cancelling output gnd absolute maximum ratings (t a = 25 c) symbol characteristics values unit vdd supply voltage 5 v b magnetic flux density unlimited t s storage temperature range -65 to +150 c p d package power dissipation 230 mw t j maximum junction temperature 150 c recommended operating conditions (t a = 25 c) symbol parameter conditions rating unit vdd supply voltage operating 1.65 to 3.3 v t a operating temperature range operating -40 to +85 c
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 3 of 7 www.diodes.com june 2010 ? diodes incorporated electrical characteristics (t a = 25 c, vdd = 1.8v; unless otherwise specified) 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 awake 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 2) (1mt=10 gauss) symbol characteristic (note 3) 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(|bopx|-|brpx|) hysteresis 3 8 - notes: 2. typical data is at ta = 25 c, vdd = 3v, and for design information only. 3. operate point and release point will vary with supply voltage and operating temperature. b hy v sat v dd ( output voltage ) b opn b rpn 0 ( magnetic flux density b ) output turn on turn off ( off-state ) ( on-state ) b hy v sat ( output voltage ) b rps b ops 0 ( magnetic flux density b ) output turn off turn on ( off-state ) ( on-state ) v dd
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 4 of 7 www.diodes.com june 2010 ? diodes incorporated typical operating characteristics ah1883 sw itch points vs. tem perature (vdd = 1.8v) -50 -40 -30 -20 -10 0 10 20 30 40 50 -40 -15 10 35 60 85 temperature ( ) gauss(g) bo p s br p s bo p n br p n bhy_s bhy_n ah1883 sw itch points vs. vdd (t a =25 ) -50 -40 -30 -20 -10 0 10 20 30 40 50 1.65 1.9 2.15 2.4 2.65 2.9 3.15 3.4 3.65 3.9 vdd(v) gauss(g) bo p s br p s bo p n br p n bhy_s bhy_n ah1883 idd(avg.) vs. temperature 0 1 2 3 4 5 6 7 8 9 -40 -15 10 35 60 85 temperature ( ) idd (avg.) unit: a 1.65v 1.8v 3.3v ah1883 idd(avg.) vs. vdd (t a =25 oc) 0 1 2 3 4 5 6 7 8 9 10 1.65 1.9 2.15 2.4 2.65 2.9 3.15 3.4 3.65 3.9 vdd(v) idd (avg.) unit: a
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 5 of 7 www.diodes.com june 2010 ? 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 ( o c) p d (m w ) 85 -40 ordering information ah 1883 - z g - 7 packing package green z : sot553 g : green 7 : tape & reel device package code packaging (note 4) 7? tape and reel quantity part number suffix AH1883-ZG-7 z sot553 3000/tape & reel -7 notes: 4. 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.
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 6 of 7 www.diodes.com june 2010 ? diodes incorporated 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 ah1883 sot553 kp package outline dimensions (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
ah1883 micropower, ultra-sensitive hall effect switch ah1883 document number: ds31296 rev. 3 - 2 7 of 7 www.diodes.com june 2010 ? diodes incorporated important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liabi lity arising out of the application or use of this document or an y product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of othe rs. any customer or user of this document or products desc ribed herein 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 diodes incorp orated website, harmless against all damages. diodes incorporated does not warrant or accept any liability what soever in respect of any prod ucts purchased through unauthoriz ed sales channel. should customers purchase or use diodes in corporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives har mless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized a pplication. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. life support diodes incorporated products are specifica lly not authorized for use as critical co mponents in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when pr operly used in accordance with instructions for use provided in the labeling can be reasonably expected to re sult in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in t he safety and regulatory ramifications of their life support dev ices or systems, and acknowledge and agree that they are solely responsi ble for all legal, regulatory and safety-related requirements concerning their products and any use of diode s incorporated products in such safety-cri tical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporated and its repr esentatives against any damages ar ising out of the use of diodes incorporated products in such safety-c ritical, life support devices or systems. copyright ? 2010, diodes incorporated www.diodes.com
|
