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ap4320 document number: ds36786 rev. 2 - 2 1 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated constant voltage and constant current controller description the ap4320 is a highly integrated solution for a constant voltage/constant current mode smps application. the ap4320 conta ins one 2.5v voltage reference and two operational amplifiers. the 2.5v voltage reference, combined with one operational amplifier, makes of an ideal voltage controller for use in ada pters and battery chargers. the low voltage reference, combined with another operational amplifier, makes of an ideal current limiter for output low side current sensing. the ap4320 is available in sot 2 6 package . features ? constant voltage and constant current control ? low external component count ? easy compensation ? low supply current: 190 ? a ? precision internal voltage reference: 2.5v ? operating supply voltage: 3.5v to 36v ? low current sense threshold: 30mv/50mv ? totally lead - free & fully rohs compliant (note 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments ( top view) s ot 26 ( k 6 package ) applications ? ac/dc adapters ? battery chargers ? led drivers 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 . typical applications circuit typical application 1 v s e n s e g n d v c t r l i c t r l v o u t v c c 1 2 3 4 5 pin 1 mark 6 v c c v o u t g n d v s e n s e i c t r l r s s r 4 t o p r i m a r y r 2 r 1 v o u t + v o u t - l o a d c 1 r 3 c 3 r 5 r 6 v c t r l a p 4 3 2 0 + + i l 2 . 5 v c 2 ( o p t i o n a l ) o p 1 o p 2 1 2 3 4 5 6 ss sense r v it currentlim ? 1 2 1 r r r v v ref out ? ? ?
ap4320 document number: ds36786 rev. 2 - 2 2 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated typical applications circuit (cont .) typical application 2 typical application 3 ? ? ss ref sense ref sense r v v v v it currentlim ? ? ? ? ) ( 1 2 1 )] ( [ ss l ss l ref ut o r i r r r r i v v ? ? ? ? ? ? ? v cc v out gnd v sense i ctrl r ss r 4 to primary r 2 r 1 v out + v out - load c 1 r 3 c 3 r 5 r 6 v ctrl ap 43 20 + + i l 2 . 5 v c 2 ( optional ) op 2 op 1 1 2 3 4 5 6 v cc v out gnd v sense i ctrl r ss r 4 to primary r 2 r 1 v out + v out - load c 1 r 3 c 3 r 5 r 6 v ctrl ap 43 20 + + i l 2 . 5 v c 2 ( optional ) op 1 op 2 1 2 3 4 5 6 ) ( 1 2 1 ss l ref out r i r r r v v ? ? ? ? ? ss sense r v it currentlim ?
ap4320 document number: ds36786 rev. 2 - 2 3 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated pin description s pin number p in name function 1 v sense input pin of the current control loop 2 gnd ground 3 v ctrl input pin of the voltage control loop 4 i ctrl i nput pin of the current control loop 5 v out output pin. sinking current only 6 v cc power supply functional block diagram 4 1 2 3 6 v c c v o u t v c t r l 5 g n d v s e n s e i c t r l 2 . 5 v o p 1 o p 2
ap4320 document number: ds36786 rev. 2 - 2 4 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated absolute maximum ratings (note 4 ) symbol parameter rating unit v cc power supply voltage - 0.3 to 38 v v out input voltage (v out pin) - 0.3 to v cc v v i ctrl input voltage (i ctrl pin) - 0.3 to 18 v v sense input voltage (v sense pin) - 0.3 to 18 v v vctrl input voltage (v ctrl pin) - 0.3 to 18 v t j junction temperature + 150 ? c t stg storage temperature - 5 5 to + 150 ? c t lead lead temperature (soldering, 5 sec) + 260 ? c j a thermal resistance (junction to ambient) 250 ? c /w note 4 : stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. these are str ess ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. exposure to absolute maximum ratings for extended periods may affect device reliability. recommended operating conditions symbol parameter min max unit v cc power supply voltage 3 .5 36 v
ap4320 document number: ds36786 rev. 2 - 2 5 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated electrical characteristics (@ v cc =20 v, - 25 ? c < t a < + 1 25 ? c , unless otherwise specified .) symbol parameters conditions min typ max unit total current consumption i cc total supply current not including the output sinking current v ictrl =v sense =0v, v out =open C 190 C a v oltage control loop gmv transconduction gain (v ctrl ). sink current only C 1 3.5 C ma/m v v ref voltage control loop reference t a = + 25 o c 2.488 2.50 2.512 v C 2.48 C 2.52 i ibv input bias current (v ctrl ) C C 2 5 C na current control loop gmi transconduction gain (i ctrl ). sink current only C 1.5 7 C ma/mv v sense current control loop reference ap4320a t a = +25 c 29 30 31 mv C 28 30 32 ap4320b t a = +25 c 48.5 50 51.5 C 46 50 54 i ibi current out of pin i ctrl at v sense ap4320a v ictrl = - 30mv C 16 C a ap4320b v ictrl = - 50mv C 16 C output stage v ol low output voltage at 2ma sinking current C C 30 100 mv i os output short circuit current. sink current only v out =4v C 30 C ma
ap4320 document number: ds36786 rev. 2 - 2 6 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated performance characteristics v ref vs. ambient temperature i cc vs. ambient temperature v sense vs. ambient temperature v sense vs. ambient temperature i ibv vs. ambient temperature i ibi vs. ambient temperature -40 -20 0 20 40 60 80 100 120 140 150 160 170 180 190 200 210 220 230 240 i cc ( ? a) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 8 10 12 14 16 18 20 22 i ibi ( ? a) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 48.0 48.5 49.0 49.5 50.0 50.5 51.0 51.5 52.0 v sense (mv) ambient temperature ( o c) ap4320b -40 -20 0 20 40 60 80 100 120 140 29.0 29.2 29.4 29.6 29.8 30.0 30.2 30.4 30.6 30.8 31.0 v sense (mv) ambient temperature ( o c) ap4320a -40 -20 0 20 40 60 80 100 120 140 2.480 2.485 2.490 2.495 2.500 2.505 2.510 2.515 2.520 v ref (v) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 0 5 10 15 20 25 30 35 40 45 50 i ibv (na) ambient temperature ( o c)
ap4320 document number: ds36786 rev. 2 - 2 7 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated performance characteristics (cont .) i os_op1 vs. ambient temperature i os_op2 vs. ambient temperature gmv vs. ambient temperature gmi vs. ambient temperature v ol vs. ambient temperature -40 -20 0 20 40 60 80 100 120 140 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 gmv (ma/mv) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 18 20 22 24 26 28 30 32 34 36 v ol (mv) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 20 25 30 35 40 45 50 i os_op1 (ma) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 2 3 4 5 6 7 8 9 10 gmi (ma/mv) ambient temperature ( o c) -40 -20 0 20 40 60 80 100 120 140 20 25 30 35 40 45 50 i os_op2 (ma) ambient temperature ( o c)
ap4320 document number: ds36786 rev. 2 - 2 8 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 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 version part number marking id packing sot 2 6 30mv v sense ap43 20 a k6tr - g1 gjz 3000/ tape and reel 50mv v sense ap43 20bk6tr - g1 gkw mark ing information : logo xxx: marking id ( see details from ordering information ) a p 4 3 2 0 x x x x x - x x p a c k i n g v e r s i o n t r : t a p e & r e e l a : 3 0 m v v s e n s e g 1 : g r e e n p r o d u c t n a m e r o h s / g r e e n p a c k a g e k 6 : s o t 2 6 b : 5 0 m v v s e n s e
ap4320 document number: ds36786 rev. 2 - 2 9 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated package outline dimensions (all d imensions in mm ( inch) . ) (1) package t ype: s ot2 6 2 . 8 2 0 ( 0 . 1 1 1 ) 3 . 1 0 0 ( 0 . 1 2 2 ) 2 . 6 5 0 ( 0 . 1 0 4 ) 3 . 0 0 0 ( 0 . 1 1 8 ) 1 . 5 0 0 ( 0 . 0 5 9 ) 1 . 7 0 0 ( 0 . 0 6 7 ) 0 . 9 5 0 ( 0 . 0 3 7 ) t y p 1 . 8 0 0 ( 0 . 0 7 1 ) 2 . 0 0 0 ( 0 . 0 7 9 ) 0 . 3 0 0 ( 0 . 0 1 2 ) 0 . 5 0 0 ( 0 . 0 2 0 ) 0 . 7 0 0 ( 0 . 0 2 8 ) r e f 0 . 1 0 0 ( 0 . 0 0 4 ) 0 . 2 0 0 ( 0 . 0 0 8 ) 0 8 0 . 2 0 0 ( 0 . 0 0 8 ) 0 . 3 0 0 ( 0 . 0 1 2 ) 0 . 6 0 0 ( 0 . 0 2 4 ) 0 . 0 0 0 ( 0 . 0 0 0 ) 0 . 1 5 0 ( 0 . 0 0 6 ) 0 . 9 0 0 ( 0 . 0 3 5 ) 1 . 3 0 0 ( 0 . 0 5 1 ) 1 . 4 5 0 ( 0 . 0 5 7 ) m a x 1 2 3 4 5 6 p i n 1 m a r k
ap4320 document number: ds36786 rev. 2 - 2 10 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 a product line of diodes incorporated suggested pad layout (1) package t ype: s ot2 6 dimensions z (mm)/(inch) g (mm)/(inch) x (mm)/(inch) y (mm)/(inch) e (mm)/(inch) value 3.600/0.142 1.600/0.063 0.700/0.028 1.000/0.039 0.950/0.037 e e g z y x
ap4320 document number: ds36786 rev. 2 - 2 11 of 11 www.diodes.com december 2013 ? diodes incorporated ap4320 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 under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other c hanges 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 customer 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 against all damages. diodes incorporated do es not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemni fy 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 with such unintended or unauthorized applicat ion. 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, international 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 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 s ystems 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 to affect its safety or effectiven ess. 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 re quirements 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 ? 201 3 , diodes incorporated www.diodes.com

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