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ap34063 document number: ds31004 rev. 6 - 2 1 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 universal dc/dc converter description the ap34063 series is a monolithic control circuit containing the primary functions required for dc- to-dc converters . these devices consist of an internal temper ature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output sw itch. this series is specifically designed for incorporating in step-down and step-up and voltage- inverting applications with a minimum number of external components. features ? operation from 3.0v to 40v input ? low standby current ? current limiting ? output switch current to 1.6a ? output voltage adjustable ? frequency operation to 100 khz ? precision 2% reference ? so-8 package ? totally lead-free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) ? pdip-8 and so-8 package ? totally lead-free; rohs compliant (notes 1 & 2) pin assignments so-8 1 2 3 4 8 7 6 5 v cc comparator inverting input driver collector i pk sense switch collector switch emitter timing capacitor gnd ( top view ) pdip-8 1 2 3 4 8 7 6 5 v cc comparator inverting input driver collector i pk sense switch collector switch emitter timing capacitor gnd ( top view ) notes: 1. no purposely added lead. fully eu directiv e 2002/95/ec (rohs) & 2011/6 5/eu (rohs 2) compliant. 2. see http://www.diodes.com for more in formation about diodes incorpor ated?s definitions of halogen- and antimony-free, "gree n" and lead-free. 3. halogen- and antimony-free "green? products are defined as those which contain <900ppm br omine, <900ppm chlorine (<1500ppm t otal br + cl) and <1000ppm antimony compounds.
ap34063 document number: ds31004 rev. 6 - 2 2 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 typical applications circuit (1) step-up converter 1.25v ref reg i pk c t r sq q2 q1 comp. + _ 8 7 6 5 1 2 3 4 v cc osc 180 + 470 uf v in 12v r sc 0.24 r1 10k 56k r2 + c o 28v/200ma v out + 100 v out optional filter l 120uh c t 680 pf b240 470uf 1.0uh test conditions results line regulation v in = 9v to 12v, i o = 200ma 20mv = 0.035% load regulation v in = 12v, i o = 50ma to 200ma 15mv = 0.035% output ripple v in = 12v, i o = 200ma 500mv pp efficiency v in = 12v, i o = 200ma 80%
ap34063 document number: ds31004 rev. 6 - 2 3 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 typical applications circuit (cont.) (2) step-down converter 1.25v ref reg i pk c t r sq q2 q1 comp. + _ 8 7 6 5 1 2 3 4 v c c osc + 470 uf v in 25v r sc 0.11 r1 25k 36k r2 + c o 5.0v/500ma v out + 100 v out optional filter c t 470 pf l 100uh b240 470uf 1.0uh test conditions results line regulation v in = 12v to 24v, i o = 500ma 20mv = 0.2% load regulation v in = 24v, i o = 50ma to 500ma 5mv = 0.05% output ripple v in = 24v, i o = 500ma 160mv pp efficiency v in = 24v, i o = 500ma 82%
ap34063 document number: ds31004 rev. 6 - 2 4 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 typical applications circuit (cont.) (3) voltage inverting converter 1.25v ref reg i pk c t r sq q2 q1 comp. + _ 8 7 6 5 1 2 3 4 v c c osc + 470uf v in 4.5v to 6.0v r sc 0.26 r2 50k 3k r1 c o -12v/100ma v out 100 v out optional filter 680 pf l b240 470uf 1.0uh + 100 uh + + test conditions results line regulation v in = 4.5v to 6.0v, i o = 100ma 20mv = 0.08% load regulation v in = 5.0v, i o = 20ma to 100ma 30mv = 0.12% output ripple v in = 5.0v, i o = 100ma 500mv pp efficiency v in = 5.0v, i o = 100ma 60%
ap34063 document number: ds31004 rev. 6 - 2 5 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 absolute maximum ratings (@t a = +25c, unless otherwise specified.) stresses greater than the 'absolute maximum ratings' specified abov e, may cause permanent damage to the device. these are stres s 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 maximum rating conditions for extended periods of time. symbol parameter value unit v cc power supply voltage 40 v v ir comparator input voltage range -0.3 to +40 v v c(switch) switch collector voltage 40 v v e(switch) switch emitter voltage (v pin 1 = 40v) 40 v v ce(switch) switch collector to emitter voltage 40 v v c(driver) driver collector voltage 40 v i c(driver) driver collector current 100 ma i sw switch current 1.6 a p d power dissipation (note 4) so-8: t a = +25c 600 mw pdip-8: t a = +25c 1.25 w ja thermal resistance so-8 117 c/w pdip-8 138 jc so-8 19 pdip-8 25 t mj maximum junction temperature (note 5) +150 c t op operating junction temperature range 0 to +105 c t stg storage temperature range -65 to +150 c notes: 4. maximum package power dissipation limits must be observed. 5. low duty cycle pulse techniques are used during test to ma intain junction temperature as close to ambient temperature as possible. electrical characteristics (v cc = 5.0v, unless otherwise specified.) symbol parameter min typ max unit oscillator f osc frequency (v pin 5 = 0v, c t = 1.0 f, t a = +25c) 24 33 42 khz i chg charge current (v cc = 5.0v to 40v, t a = +25c) 24 30 42 a i dischg discharge current (v cc = 5.0v to 40v, t a = +25c) 140 200 260 a i dischg / i chg discharge to charge current ratio (pin 7 to v cc , t a = +25c) 5.2 6.5 7.5 ? v ipk (sense) current limit sense voltage (i chg = i dischg , t a = +25c) 300 400 450 mv output switch (note 3) v ce (sat) saturation voltage, darlington connection (i sw = 1.0a, pins 1, 8 connected) ? 1.0 1.3 v v ce (sat) saturation voltage, darlington connection (i sw = 1.0a, i d = 50ma, forced 20) ? 0.45 0.7 v h fe dc current gain (i sw = 1.0a, v ce = 5.0v, t a = +25c) 50 75 ? ? i c(off) collector off-state current (v ce = 40v) ? 0.01 100 a comparator v th threshold voltage t a = +25c t a = 0c to +70c ? ? ? v ? 1.225 1.25 1.275 ? ? 1.21 ? 1.29 ? reg line threshold voltage line regulation (v cc = 3.0v to 40v) ? 1.4 6.0 mv total device i cc supply current (v cc = 5.0v to 40v, c t =1.0f, pin 7 = v cc , v pin 5 > v th pin 2 = gnd, remaining pins open) ? ? 3.5 ma
ap34063 document number: ds31004 rev. 6 - 2 6 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 representative schematic diagram 1.25v reference regulator ipk oscillator ct r sq q2 q1 100 comparator + _ (bottom view) 8 7 6 5 1 2 3 4 gnd timing capacitor switch emitter switch collector drive collector i pk sense v cc comparator inverting input
ap34063 document number: ds31004 rev. 6 - 2 7 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 typical performance characteristics figure 1. vce(sat) versus le 0.6 0.8 1 1.2 1.4 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 ie, emitter current (a) vce(sat), saturation voltage (v) 1.24 1.245 1.25 1.255 1.26 0 10203040 5060708090100 temperature ( o c) reference voltage (v) figure 2. reference voltage versus temp. figure 4. standby supply current versus supply voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 5 10 15 20 25 30 35 40 vcc, supply voltage (v) icc, supply current (ma) 1.4 1.45 1.5 1.55 1.6 1.65 1.7 1.75 1.8 100 300 500 700 900 1100 1300 1500 i e (ma) v ce ( sat), (v) figure 5. emitter follower configuration output saturation voltage vs. emitter current 0.1 1 10 100 1000 0.01 0.1 1 10 c t , oscillator timing capacitor ( nf) t on-off , output switch on-off time(us) figure 6.output switch on-off time versus oscillator timing capacitor v cc = 5.0v pin 7 = v cc pin 5 = gnd t a = 25 o c t on t off vcc=2~10v pin1,7,8=vcc pin3,5=gnd t a =25 o c pin2=5 figure 3. current limit sense voltage versus temperature 320 340 360 380 400 420 440 0 102030 40 50 6070 8090100 temperature ( o c) current sense voltage (mv) 10w
ap34063 document number: ds31004 rev. 6 - 2 8 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 design formula table calculation step-up step-down voltage-inverting t on / t off v out + v f ?v in(min) v out + v f i v out l + v f v in(min) ? v sat v in(min) ? v sat ? v out v in(min) ? v sat ( t on + t off ) 1/f 1/f 1/f t off t on + t off t on + t off t on + t off t on +1 t on +1 t on +1 t off t off t off t on ( t on +t off ) ? t off ( t on +t off ) ? t off ( t on +t off ) ? t off c t 4.0 10 -5 t on 4.0 10 -5 t on 4.0 10 -5 t on i pk (switch) 2i out(max) (t on / t off +1) 2i out(max) 2i out(max) (t on / t off +1) r sc 0.3 / i pk (switch) 0.3 / i pk (switch) 0.3 / i pk (switch) l (min) ( v in(min) ? v sat ) t on(max) (v in(min) ? v sat ? v out ) t on(max) ( v in(min) ? v sat ) t on(max) i pk (switch) i pk (switch) i pk (switch) c o 9 i out t on i pk (switch) (t on + t off ) 9 i out t on v ripple (pp) 8v ripple (pp) v ripple (pp) v sat = saturation voltage of the output switch. v f = forward voltage drop of the output rectifier. the following power supply characteristics must be chosen: v in - nominal input voltage. v out - desired output voltage, |v out | = 1.25 (1+r2/r1) i out - desired output current. f min - minimum desired output switching frequency at the selected values of v in and i o . v ripple(pp) - desired peak-to-peak output ripple voltage. in practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. the ripple voltage should be kept to a low value since it will directly affect the line and load regulation. ordering information package packing lead free l : lead free g : green s8 : so-8 n8 : pdip-8 u : tube 13 : tape & reel ap 34063 xx x - x part number package code packaging tube 13? tape and reel quantity part number suffix quantity part number suffix ap34063s8l-13 s8 so-8 na na 2500/tape & reel -13 ap34063s8g-13 s8 so-8 na na 2500/tape & reel -13 ap34063n8l-u n8 pdip-8 60 - u na na pb lead-free pb lead-free
ap34063 document number: ds31004 rev. 6 - 2 9 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 marking information (1) so-8 ( top view ) ap34063 yy ww x x logo part no . internal code year : "08" = 2008 "09" = 2009 xth week = 01~52 ~ 5 8 4 1 g : green l : lead free (2) pdip-8 ( top view ) ap34063 yy ww x x logo part no . internal code year : "08" = 2008 "09" = 2009 xth week = 01~52 ~ 5 8 4 1 l : lead free
ap34063 document number: ds31004 rev. 6 - 2 10 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 package outline dimensions (all dimensions in mm.) please see ap02002 at http://www.diodes.com /datasheets/ap02002.pdf for latest version. (1) so-8 (2) pdip-8 so-8 dim min max a - 1.75 a1 0.10 0.20 a2 1.30 1.50 a3 0.15 0.25 b 0.3 0.5 d 4.85 4.95 e 5.90 6.10 e1 3.85 3.95 e 1.27 typ h - 0.35 l 0.62 0.82 0 8 all dimensions in mm pdip-8 dim min max a 9.02 9.53 b 6.15 6.35 c 3.10 3.50 d 0.36 0.56 f 1.40 1.65 g 2.54 typ. h 0.71 0.97 j 0.20 0.36 k 2.92 3.81 l 7.62 8.26 m ? 15 n 0.38 (min) all dimensions in mm gauge plane seating plane detail ?a? detail ?a? e e1 h l d e b a2 a1 a 45 7 ~ 9 a3 0.254 a b h g f d n k c l m j
ap34063 document number: ds31004 rev. 6 - 2 11 of 11 www.diodes.com september 2012 ? diodes incorporated a p34063 suggested pad layout please see ap02001 at http://www.diodes.com/dat asheets/ap02001.pdf for the latest version. (1) so-8 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 descri bed herein. diodes incorporated does not assume any liability arising out of the application or use of this document or an y product described herein; neither does di odes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or us er of this document or products described herein in such applica tions 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 inco rporated products for any unintended or una uthorized application, customers shall i ndemnify and hold diodes incorporated and its representativ es harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized application. 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 component s in life support devices or systems without the express written approval of the chief executive offi cer of diodes incorporated. as used herein: a. life support devices or syst ems 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 proper ly 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 devic e or system whose failure to perform can be reasonably expect ed 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 ramifi cations of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-rel ated requirements concerning the ir products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or s ystems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporate d and its representatives against any damages arisi ng out of the use of diodes incorporated pr oducts in such safety-critical, life suppor t devices or systems. copyright ? 2012, diodes incorporated www.diodes.com dimensions value (in mm) x 0.60 y 1.55 c1 5.4 c2 1.27 x c1 c2 y

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