ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 1 of 10 www.diodes.com september 2011 ? diodes incorporated description the ah1883 micropower omnipolar hall effect switch ic is designed for portable and battery powered equipment such as cellular phones, cordless phones, camcorders, pda?s, and portable pc?s. based on two high sensitivity hall effect plates and chopper stabilized architecture, the ah1883 provides reliable solution over the whole operating range. to support portable and battery powered equipment the design has been optimized to operate from 1.65v to 3.3v and consumes 13uw typical with a supply of 1.8v. to minimize pcb space the ah1883 incudes a push-pull output structure, therefore does not require an ex ternal pull up resistor, and is packaged in small low profile sot553 and u-dfn2020-3 packages. either north or south pole of sufficient strength will turn the output on. when the magn etic flux density ( b ) is larger than operate ( bop ) the output is switched on. the output is turned off when b becomes lower than the release point ( brp ). the output will remain off when there is no magnetic field. pin assignments ? 5 4 3 2 1 gnd output nc nc vdd (top view) sot553 1. vdd 2. output 3. gnd u-dfn2020-3 (top view) features ? micropower operation ? operation with north or south pole ? 1.65v to 3.3v battery operation ? chopper stabilized o superior temperature stability o extremely low switch-point drift o insensitive to physical stress ? good rf noise immunity ? -40 c to 85 c operating temperature ? esd (hbm) 6kv in sot553 and u-dfn2020-3 ? small low profile packages: sot553 and u-dfn2020-3 ? ?green? molding compound applications ? cellular phone ? pda ? portable pcs ? netbook, notebook, tablets ? camcorders ? cordless phone ? handheld game consoles ? proximity detection and contact-less switch applications
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 2 of 10 www.diodes.com september 2011 ? diodes incorporated typical application circuit ah1883 vdd output gnd 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 output driver controller latch latch sleep/awake logic and power switch vdd hall plate amp hall plate amp output offset cancellation offset cancellation gnd
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 3 of 10 www.diodes.com september 2011 ? diodes incorporated absolute maximum ratings (t a = 25 c, note 1) 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 notes: 1. stresses greater than the 'absolute maximum ratings' sp ecified above, may cause permane nt damage to the device. these are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. device reliability may be affected by exposure to absolute ma ximum rating conditions for extended periods of time 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 rang e operating -40 to +85 c 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 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 - %
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 4 of 10 www.diodes.com september 2011 ? diodes incorporated magnetic characteristics (t a = 25 c, vdd = 1.8v~3.0v, note 2 & 3) (1mt=10 gauss) symbol characteristic 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 t a = 25 c, vdd = 3v, and for design information only. 3. the magnetic characteristics may vary with supply voltage, operating temperature and after soldering. 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-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 5 of 10 www.diodes.com september 2011 ? 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-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 6 of 10 www.diodes.com september 2011 ? diodes incorporated performance characteristics for sot553 and u-dfn2020-3 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 - xx g -7 packing package green z : sot553 g : green 7 : tape & reel fj : u-dfn2020-3 device package code packaging (note 4 & 5) 7? tape and reel quantity part number suffix ah1883-zg-7 z sot553 3000/tape & reel -7 AH1883-FJG-7 fj u-dfn2020-3 3000/tape & reel -7 notes: 4. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied. please visit our website at http://www.diodes.com /products/lead_free.html . 5. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.c om/datasheets/ap02001.pdf.
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 7 of 10 www.diodes.com september 2011 ? diodes incorporated marking information (1) sot553 ( top view ) y : year : 0~9 x : internal code 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 (2) u-dfn2020-3 ( top view ) xx pin 1 indicator y : year : 0~9 x : internal code xx : identification code w : week : a~z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week y w x part number package identification code ah1883 u-dfn2020-3 kp
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 8 of 10 www.diodes.com september 2011 ? diodes incorporated package outline dimensions (all dimensions in mm) (1) package type: sot553 (2) package type: u-dfn2020-3 sot553 dim min max typ a 0.55 0.60 0.60 c 0.10 0.18 0.15 d 1.50 1.70 1.60 e 1.55 1.70 1.60 e1 1.10 1.25 1.20 l 0.10 0.30 0.20 b 0.15 0.30 0.20 e 0.50 typ e1 1.00 typ a 6 8 7 a ll dimensions in mm u-dfn2020-3 dim min max typ a 0.57 0.63 0.60 a1 0 0.05 0.02 a3 ? ? 0.152 b 0.20 0.30 0.25 d 1.95 2.075 2.00 d2 1.10 1.30 1.20 e ? ? 0.50 e 1.95 2.075 2.00 e2 0.80 1.00 0.90 l 0.35 0.45 0.40 all dimensions in mm c l a d e e1 b (5 places) e1 e a seating plane pin#1 id e e2 l d d2 l a3 a a1 e b
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 9 of 10 www.diodes.com september 2011 ? diodes incorporated taping orientation (note 6) for u-dfn2020-3 notes: 6. the taping orientation of the other package type can be found on our website at http://www.diodes .com/datasheets/a p02007.pdf.
ah1883 micropower, ultra-sensit ive hall effect switch ah1883 document number: ds31296 rev. 6 - 2 10 of 10 www.diodes.com september 2011 ? 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 reserve the right to make modifications, enhancements, 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 any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. 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 incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death associated 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 specifically not authorized for use as critical components 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 properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result 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 the safety and regulatory ramifications of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of diodes incorporated products in such safety-critical, 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 representatives against any damages arising out of the use of diodes incorporated products in such safety-critical, life support devices or systems. copyright ? 2011, diodes incorporated www.diodes.com
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