AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 1 of 9 www.diodes.com january 2011 ? diodes incorporated description the AH180N is a high sensitivity, micro power omnipolar hall effect switch ic designed for portable and battery powered equipment such as cellular phones, pda? s and portable pc? s. based on two sens itive hall effect plates and a chopper stabilized architectu re the AH180N provides a reliable solution over the whole operating range. to support portable and battery powered equipment the design has been optimized to operate over the su pply range of 2.5v to 5.5v and consumes only 24ua with a supply of 3v. the single open drain output can switched on with either a north or south pole of sufficien t strength. when the magnetic flux density (b) is larger than operate point (bop) the output is switched on (pulled low). 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 1. vdd 3. gnd 2. output (top view) sc59 and tsot23 5 4 3 2 1 sot553 gnd output nc nc vdd ( top view ) features ? omnipolar (north or south pole) operation ? high sensitivity ? single open drain output ? micropower operation ? 2.5v to 5.5v operating range ? chopper stabilized design provides o superior temperature stability o minimal switch point drift o enhanced immunity to stress ? good rf noise immunity ? -40 c to 85 c operating temperature ? esd (hbm) 6kv ? sc59 (sot23), tsot23, and sot553 low profile packages ? ?green? molding compound applications ? cover switch in clam-shell or slide type cellular phones ? display switch for portable pcs ? on/off switch for pdas and digital cameras ? contact-less switch in consumer products
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 2 of 9 www.diodes.com january 2011 ? diodes incorporated typical application circuit AH180N 2.5v to 5.5v output gnd r l c note: c is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nf ~ 100nf. r l is the pull-up resistor, the recommended resistance is 10kohm ~ 100kohm. vdd pin descriptions functional block diagram output gnd output controller latch latch power switch vdd hall plate offset cancelling hall plate offset cancelling amp amp pin name p/i/o description vdd p/i power supply input gnd p/i ground output o output pin
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 3 of 9 www.diodes.com january 2011 ? diodes incorporated absolute maximum ratings (t a = 25 c) s y mbol characteristics v alues unit vdd supply voltage 7 v b magnetic flux density unlimited p d package power dissipation sc59 230 mw tsot23 230 sot553 230 ts storage temperature range -65 to +150 c t j maximum junction temperature 150 c recommended operating conditions (t a = 25 c) symbol parameter conditions rating unit vdd supply voltage operating 2.5 to 5.5 v t a operating temperature ra nge operating -40 to +85 c electrical characteristics (t a = 25 c, vdd = 3v; unless otherwise specified) symbol characteristic conditions min typ. max unit v out output on voltage i out =1ma ? 0.1 0.3 v ioff output leakage current v out =5.5v, output off ? < 0.1 1 a idd(en) supply current chip enable, t a = 25 c, vdd = 3v ? 3 6 ma idd(en) chip enable, ta = -40 to 85(c, vdd = 2.5v to 5.5v ? 3 12 ma idd(dis) chip disable, t a = 25 c, vdd = 3v ? 5 10 a idd(dis) chip disable, t a = -40 to 85 c, vdd = 2.5v to 5.5v ? 5 28 a idd(avg) average supply current, t a = 25 c, vdd = 3v ? 8 16 a idd(avg) average supply current, t a = -40 to 85 c, vdd = 2.5v to 5.5v ? 8 40 a tawake awake time (note 1) ? 75 125 s tperiod period (note 1) ? 75 125 ms d.c. duty cycle ? 0.1 ? % notes: 1. when power is initially turned on, vdd must be within its correct operating range (2.5v to 5.5v) to guaranteed th e output sampling. the output state is valid after the second operating cycle (typical 150ms). idd (dis) idd(en) tawake tperiod 0 sample and output latched
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 4 of 9 www.diodes.com january 2011 ? diodes incorporated magnetic characteristics (t a = 25 c, vdd = 3v, note 2 & 3) (1mt=10 gauss) symbol parameter min typ. max unit bops(south pole to brand side) operation point - 35 50 gauss bopn(north pole to brand side) -50 -35 - brps(south pole to brand side) release point 10 25 - brpn(north pole to brand side) - -25 -10 bhy(|bopx|-|brpx|) hysteresis - 10 - notes: 2. typical data is at t a = 25 c, v dd = 3v, and for design information only. 3. the magnetic characteristics may vary with suppl y voltage, operating temperature and after soldering. b hy v sat v cc ( output voltage ) b opn b rpn 0 ( magnetic flux density b ) output 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 ) output turn off turn on ( off-state ) ( on-state )
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 5 of 9 www.diodes.com january 2011 ? diodes incorporated performance characteristics (1) sc59 (commonly known as sot23 in asia), tsot23, and sot553 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
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 6 of 9 www.diodes.com january 2011 ? diodes incorporated ordering information ah 180n - xx g - 7 packing package green w : sc59 g : green 7 : tape & reel z : sot553 ws : tsot23 device package code packaging (note 4 & 5) 7? tape and reel quantity part number suffix AH180N-wg-7 w sc59 3000/tape & reel -7 AH180N-wsg-7 ws tsot23 3000/tape & reel -7 AH180N-zg-7 z sot553 3000/tape & reel -7 notes: 4. eu directive 2002/95/ec (rohs). all applicab le rohs exemptions applied. please visit our website at http://www.diodes.com /products/lead_free.html . 5. pad layout as shown on diodes inc. sugge sted pad layout document ap02001, wh ich can be found on our website at http://www.diodes.c om/datasheets/ap02001.pdf. marking information (1) sc59 (commonly known as sot23 in asia) and tsot23 xx y w x ( top view ) xx : identification code w : week : a to z : 1 to 26 week; x : a to z : green y : year 0 to 9 a to z : 27 to 52 week; z represents 52 and 53 week part number package identification code AH180N sc59 k9 AH180N tsot23 n9 (2) sot553 ( top view ) y : year : 0 to 9 x : a to z : green xx : identification code w : week : a to z : 1~26 week; a to z : 27~52 week; z represents 52 and 53 week xx y w x part number package identification code AH180N sot553 k9
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 7 of 9 www.diodes.com january 2011 ? diodes incorporated package outline dimensions (all dimensions in mm) (1) package type: sc59 (commonly known as sot23 in asia) (2) package type: tsot23
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 8 of 9 www.diodes.com january 2011 ? diodes incorporated package outline dimensions (continued) (3) package type: sot553 1.0typ. 0.15/0.30(5x) 0.30 c 0.10 m c a-b d b 1.10/1.25 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 top view 1.2 5x-0.5 land pattern recommendation (unit:mm) 1.0typ. 1.7 2.2 pin1 pin1 0.1 c l c l 0.5typ. 0.5typ. 0.3 0.45/0.67 hall sensor
AH180N micropower omnipolar hall-effect switch AH180N document number: ds32174 rev. 3 - 2 9 of 9 www.diodes.com january 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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