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a h49f document number: ds36518 rev. 2 - 2 1 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated linear hall effect ic description the ah49f is a small, versatile linear hall - effect device that is operated by the magnetic field from a permanent magnet or an electromagnet. the output voltage i s set by the supply voltage and varies in proportion to the strength of the magnetic field. the integrated circuitry features low noise output, which makes it unnecessary to use external filtering components. it also includes precision resistors to provide increased temperature stability and accuracy. the operating temperature range of these line ar hall sensors is - 40c to + 105c, appropriate for commercial, consumer, and industrial environments. the ah49f is available in standard to - 92s , sc59 and u - dfn 2020 - 6 packages. features ? power consumption of 3.0ma at v cc = 5v for energy efficiency ? single current sourcing output ? linear voltage output for circuit design flexibility ? low noise output virtually eliminates the need for filtering ? a stable and accurate output ? temperature range: - 40c to + 105c ? responds to either positive or negat ive gauss ? the maximum instantaneous supply voltage up to 50v ? high esd rating: 6000v (human body model) 600v (machine model) ? small l ow profile u - dfn2020 - 6 and i ndustry s tandard sc59 and to - 92s p ackages ? totally lead - free & fully rohs compliant (note s 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments (front view) to - 92s sc59 (top view) u - dfn2020 - 6 applications ? position sensing ? liquid level sensing ? weight sensing ? ferrous metal detector ? vibration sensing ? rotary encoder ? magnetic code readin g ? motor control ? current sensing note s: 1 . no purposely added lead. fully eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2) compliant. 2. see http://www.diodes.com/quality/lead_free.html for more information about diodes incorporateds definitions of hal ogen - and antimony - free, "green" and lead - f ree . 3. halogen - and antimony - free "green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds . (top view) 1 o u t n c v c c n c n c g n d 2 3 4 5 6 1 2 3 v c c g n d o u t g n d v c c o u t 3 2 1
a h49f document number: ds36518 rev. 2 - 2 2 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated pin description s package type: to - 92s pin number pin name description 1 vcc power supply pin 2 gnd ground pin 3 out output pin package type : sc59 pin num b e r pin name description 1 vcc power supply pin 2 out output pin 3 gnd ground pin package type : u - dfn2020 - 6 pin num b e r pin name description 1 out output pin 2 nc no connection (note 4) 3 vcc power supply pin 4 nc no connection (note 4) 5 gnd ground pin 6 nc no connection (note 4) pad pad center exposed pad is internally connected to gnd. it can be connected to gnd or left open circuit on the pcb . (note 5) note s : 4. nc is no connection pin and is not connected internally. this pin can be left open or tied to ground. 5. pad is bottom side exposed pad; functional block diagram a(b)[c] a for to - 92 s b for sc59 c for u - dfn2020 - 6 h a l l s e n s o r a m p l i f i e r 6 5 m a ( t y p i c a l ) v c c o u t g n d 1 ( 1 ) [ 3 ] 3 ( 2 ) [ 1 ] 2 ( 3 ) [ 5 ]
a h49f document number: ds36518 rev. 2 - 2 3 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated absolute maximum ratings (note 6 ) symbol parameter rating unit v cc supply voltage 10 v v cc _ inst instantaneous supply voltage 50 v p d power dissipation to - 92s 400 mw sc59 230 u - dfn2020 - 6 230 t a ambient temperature - 40 to + 125 c t stg storage temperature - 50 to + 150 c C esd (human body model) 6000 v C esd (machine model) 600 v note 6: stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. these are stres s ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating condi tions is not implied. exposure to absolute maximum ratings for extended periods may affect device reliability. recommended operating conditions ( @ t a = + 25 c ) symbol parameter min max unit v cc supply voltage 3 8 v t op operating temperature - 40 +105 c electrical characteristics ( @ v cc = 5v, t a = + 25c, unless otherwise specified .) symbol parameters conditions min typ max unit i cc supply current C 2 3 4 ma v null quiescent output voltage b = 0 (gauss) 2.25 2.5 2.75 v v sen output voltage sensitivity b = 0 to 600 (gauss) 1.7 2.1 2.5 mv/gauss v out_s output voltage span C 1.0 to (v cc - 1.0) 0.8 to (v cc - 0.8) C v r out output resistor C C 60 120 b linear magnetic range C 500 800 C gauss C linearity of span C C 0.7 C % C output noise bandwidth=10hz to 10khz C 90 C v
a h49f document number: ds36518 rev. 2 - 2 4 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated transferring characteristics (@ v cc = 5v ) when there is no external magnetic field (b=0gauss), the quiescent output voltage is one - half the supply voltage in general. for to - 92s and u - dfn2020 - 6 package s , if a s outh magnetic pole approaches the part marking surface (the side with part marking id) of the hall effect sensor, the circuit will drive the output voltage higher. in contrary, a n orth magnetic pole will drive the output voltage lower. the variations of voltage level up or down from the quiescent output voltage (the null voltage) are symmetrical and is propor tional to the magnetic flux density . in the sc59 the die is placed underneath the lead frame and theref o r e when a magnet pole approaches the sc59 part marking surface, the direction of the magnetic field in to the die is reversed compared to to - 92s. this r esults in a reverse response to the magnetic flux density in sc59 package compared with to - 92s and u - dfn2020 - 6 packages . (i.e . i f the revers e magnetic pole approaches the part marking surface of sc59 , the output is the same as to - 92s package. ) the largest magnetic sensitivity is obtained with a supply voltage of 8v, but at the cost of increased supply current and a slight loss of output symmetry. so, it is not recommended to work in such condition unless the output voltage magnitude is a main issue. the ou tput signal can be capacitively coupled to a next - level amplifier for further amplifying if the changing frequency of the magnetic field is high. transfer characteristic magnetic characteristic ( for to - 92s ) magnetic characteristic ( for sc59 ) magnetic characteristic (for u - dfn2020 - 6) south pole 800 - 8 00 400 - 4 00 0 1 . 0 v 2 . 5 v 4 . 0 v typical output voltage v b ( gauss ) north pole
a h49f document number: ds36518 rev. 2 - 2 5 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated performance characteristics supply current vs. supply voltage output voltage vs. magnetic field output voltage vs. supply voltage output voltage vs. ambient temperature power dissipation vs. ambient temperature 0 25 50 75 100 125 150 0 50 100 150 200 250 300 350 400 450 p d (mw) t a ( o c) sc59 and u-dfn2020-6 to-92s 2 3 4 5 6 7 8 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 i cc (v) v cc (v) b=0gauss no load -1500 -1000 -500 0 500 1000 1500 0 1 2 3 4 5 v out (v) b (gauss) v cc =5v no load 2 3 4 5 6 7 8 0 1 2 3 4 5 b=0gauss no load v out (v) v cc (v) -40 0 40 80 120 0 1 2 3 4 5 v cc =5v b=0gauss no load v out (v) t a ( o c)
a h49f document number: ds36518 rev. 2 - 2 6 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated ordering information diodes ics pb - free products with "g1" suffix in the part number, are rohs compliant and green . package temperature range part number marking id packing to - 92s - 40c to +105 c ah49fz3 - g1 49fg 1000/ bulk sc59 ah49fntr - g1 gt6 3000/ tape & reel u - dfn2020 - 6 ah49fdntr - g1 cn 3000/ tape & reel marking information (1) package t ype: to - 92s (front view) part number package identification code ah49f to - 92s 49fg 49fg ywwaxx first line : logo and identification code second line: date code y: year 0 to 9 ww: week 00 to 52 (work w eek of m olding) a: assembly h ouse c ode xx: 7 th and 8 th d igits: batch no . p a c k i n g p a c k a g e p r o d u c t n a m e t r : t a p e & r e e l z 3 : t o - 9 2 s g 1 : g r e e n a h 4 9 f x x x x C r o h s / g r e e n n : s c 5 9 d n : u - d f n 2 0 2 0 - 6 b l a n k : t u b e
a h49f document number: ds36518 rev. 2 - 2 7 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated marking information ( cont. ) (2) package type: sc59 part number package identification code ah49f sc59 gt6 (3) package type: u - dfn2 020 - 6 part number package identification code ah49f u - dfn2020 - 6 cn x x x y w x ( t o p v i e w ) x x x : i d e n t i f i c a t i o n c o d e w : w e e k : a t o z : 1 t o 2 6 w e e k ; y : y e a r 0 t o 9 a t o z : 2 7 t o 5 2 w e e k ; z r e p r e s e n t s 5 2 a n d 5 3 w e e k x : i n t e r n a l c o d e ( t o p v i e w ) x x y : y e a r : 0 ~ 9 x : i n t e r n a l c o d e x x : i d e n t i f i c a t i o n c o d e w : w e e k : a ~ z : 1 ~ 2 6 w e e k ; a ~ z : 2 7 ~ 5 2 w e e k ; z r e p r e s e n t s 5 2 a n d 5 3 w e e k y w x
a h49f document number: ds36518 rev. 2 - 2 8 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated package outline dimensions (1) package type: to - 92s sensor l ocation to - 92 s dim min max a 4.0 4.2 a1 3 typ a2 6 typ a3 45 typ a4 3 typ b 3.08 3.28 c 1.48 1.68 d 0.36 0.56 e 0.44 typ f - 0.05 0.20 g 1.27 typ h 2.54 typ j 0.38 typ l 13.5 14.5 n 0.71 0.81 p 2.60 3.00 all dimensions in mm d i e p a r t m a r k i n g s u r f a c e 0 . 7 1 / 0 . 8 1 0 . 3 5 / 0 . 5 5 h a l l s e n s o r 1 . 9 0 / 2 . 2 0 1 . 1 5 / 1 . 4 5 1 2 3 p a r t m a r k i n g s u r f a c e m i n / m a x l j n d c g h b p a e f a 3 a4 a 1 a 2
a h49f document number: ds36518 rev. 2 - 2 9 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated package outline dimensions ( c ont.) (2) package type: sc59 sensor l ocation sc59 dim min max typ a 0.35 0.50 0.38 b 1.50 1.70 1.60 c 2.70 3.00 2.80 d - - 0.95 g - - 1.90 h 2.90 3.10 3.00 j 0.013 0.10 0.05 k 1.00 1.30 1.10 l 0.35 0.55 0.40 m 0.10 0.20 0.15 n 0.70 0.80 0.75 ? 0 8 - all dimensions in mm 0 . 6 7 / 0 . 9 7 1 . 3 / 1 . 6 h a l l s e n s o r m i n / m a x 0 . 4 7 5 / 0 . 5 7 5 0 . 1 0 / 0 . 2 0 d i e p a r t m a r k i n g s u r f a c e p i n 1 a m j l d b c h k g n
a h49f document number: ds36518 rev. 2 - 2 10 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated package outline dimensions ( c ont.) (3) package type: u - dfn2020 - 6 bottom view sensor l ocation u - dfn2020 - 6 type c dim min max typ a 0.57 0.63 0.60 a1 0.00 0.05 0.02 a3 CC 0.15 b 0.25 0.35 0.30 d 1.95 2.075 2.00 d2 1.55 1.75 1.65 e 1.95 2.075 2.00 e2 0.86 1.06 0.96 e CC CC 0.65 l 0.25 0.35 0.30 z CC CC 0.20 all dimensions in mm d i e h a l l s e n s o r 0 . 9 5 / 1 . 1 5 0 . 8 6 / 1 . 0 6 0 . 2 0 / 0 . 4 0 0 . 5 7 / 0 . 6 3 m i n / m a x p a r t m a r k i n g s u r f a c e p i n 1 t o p v i e w d d2 e e b l e2 a a1 a3 seating plane pin #1 id z(4x)
a h49f document number: ds36518 rev. 2 - 2 11 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of diodes incorporated suggested pad layout (1) package type: sc59 (2) package type: u - dfn2020 - 6 dimensions value (in mm) z 3.4 x 0.8 y 1.0 c 2.4 e 1.35 dimensions value (in mm) c 0.650 x 0. 350 x1 1.650 x 2 1.700 y 0. 525 y 1 1.010 y 2 2.400 x e y c z y 2 x1 x2 y 1 y ( 6 x ) x (6x) c
a h49f document number: ds36518 rev. 2 - 2 12 of 12 www.diodes.com june 2014 ? diodes incorporated ah49f new product a product line of 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 und er the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license unde r its patent or trademark rights, nor the rights of others. any cus tomer or user of this document or products described 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 diod es incorporated website, harmless aga inst all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthor ized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauth orized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated wi th such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product nam es and markings noted herein may also be covered by one or more united states, int ernational or foreign trademarks. this document is written in english but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life supp ort diodes incorporated products are specifically not authorized for use as critical components in life support devices or system s without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life suppo rt 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 i n 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 expe cted to cause the failure of the life support device or t o affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support d evices 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 p rovided 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. copyr ight ? 2 014 , diodes incorporated www.diodes.com

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