ztl431/ztl432 document number: ds33263 rev. 16 - 2 1 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 cost effective adjustable precision shunt regulator description the ztl431 and ztl432 are three terminal adjustable shunt regulators offering excellent temp erature stability and output current handling capability up to 100ma. the output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors. the devices can be used as a replac ement for zener diodes in many applications requiring an improvem ent in zener performance. the ztl432 has the same electrical specifications as the ztl431 but has a different pin out in sot23 (f-suffix) and sot23f (ff-suffix). both variants are available in 2 grades with initial tolerances of 1% and 0.5% for the a and b grades respectively. these are functionally equivalent to the tl431/ tl432 except for maximum operation voltage, and have an ambient temperature range of -40c to +125c as standard. pin assignments ztl431_f sot23, ztl431_ff sot23f (top view) ztl432_f sot23, ztl432_ff sot23f (top view) ztl431_h6, sot363 (top view) ?connected internally to substrate; should be left floating or connected to anode ztl431ase5 sot25 (top view) ztl431_e5 sot25 (top view) * must be left floating or connected to pin 5 features ? temperature range ................ -40c to +125c ? reference voltage tolerance at +25c ? 0.5%.......................................b grade ? 1% .........................................a grade ? 0.2 ? typical output impedance ? sink current capability??.. 1ma to 100ma ? adjustable output voltage??v ref to 20v ? qualified to aec-q100 standards for high reliability ? totally lead-free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) applications ? opto-coupler linearization ? linear regulators ? improved zener ? variable reference 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/quality/lead_free.html for more information about diodes incorporated?s definitions of halogen an d antimony-free, "green" and lead-free. 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. anode cathode ref 2 1 3 anode cathode ref 2 1 3 anode cathode ref 2 1 3 cathode ref n/c ? n/c ? nc anode 3 2 1 4 5 6 cathode 2 anode cathode n/c 3 1 5 4 ref n/c 2 anode cathode n/c 3 1 5 4 ref n/c*
ztl431/ztl432 document number: ds33263 rev. 16 - 2 2 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 absolute maximum ratings (voltages specified are relative to the anode pin unless otherwise stated.) parameter rating unit cathode voltage (v ka ) 20 v continuous cathode current (i ka ) 150 ma reference input current range (i ref ) -50a to +10ma operating junction temperature -40 to +150 c storage temperature -55 to +150 c operation above the absolute maximum rating may cause device failure. operation at the absolute maximum ratings, for extended periods, may reduce device reliability. package thermal data package ? ja p dis t a = +25c, t j = +150c sot23 380c/w 330mw sot23f 138c/w 900mw sot25 250c/w 500mw sot363 380c/w 330mw recommended operating conditions (@t a = +25c, unless otherwise specified.) symbol parameter min max unit v ka cathode voltage v ref 20 v i ka cathode current 1 100 ma t a operating ambient temperature range -40 +125 c electrical characteristics (@t a = +25c, unless otherwise specified.) symbol parameter conditions min typ max units v ref reference voltage v ka = v ref i ka = 10ma ztl43_a 2.475 2.5 2.525 v ztl43_b 2.487 2.5 2.513 v dev deviation of reference voltage over full temperature range v ka = v ref i ka = 10 ma t a = 0 to 70 6 16 mv t a = -40 to 85c 14 34 t a = -40 to 125c 14 34 ? v ref ? v ka ratio of change in reference voltage to the change in cathode voltage i ka = 10ma v ka = v ref to 10 -1.4 -2.7 mv/v v ka = 10v to 20v -1.0 -2.0 i ref reference input current i ka = 10ma, r1 = 10k ? , r 2 = oc 2 4 a ? i ref i ref deviation over full temperature range i ka = 10ma r 1 = 10k ? r 2 = oc t a = 0 to 70c 0.8 1.2 a t a = -40 to 85c 0.8 2.5 t a = -40 to 125c 0.8 2.5 i ka(min) minimum cathode current for regulation v ka = v ref 0.4 0.6 ma i ka(off) off state current v ka = 20v, v ref = 0v 0.1 0.5 a r z dynamic output impedance v ka = v ref , f = 0hz 0.2 0.5 ?
ztl431/ztl432 document number: ds33263 rev. 16 - 2 3 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 typical characteristics i ka =10ma v ref =v ka 0 100 200 300 400 500 600 700 800 900 1000 0 255075100125 sot23-5 sot23 sc70-6 sot23f ambient temperature (c) power dissipation ( m w) reference voltage vs. temperature dynamic impedance vs. frequency power dissipation derating
ztl431/ztl432 document number: ds33263 rev. 16 - 2 4 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 typical characteristics (cont.) i ka i ka i ka v ka v ka v ref ztl431/ztl432 document number: ds33263 rev. 16 - 2 5 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 application circuits v on ~ 2v v off =v + v th =2.5v output v+ input r1 r2 v out v out v+ v ref v ref r1 r2 v out v out v+ v ref v ref r1 r2 v out v out v+ v ref v ref v out(min) =v ref +v reg in out common zsr*** 0.01f 30 ? r1 r2 v ref v+ v out v out v ref r1 r1 r2b r2a v ref v ref v ref v ref v+ outpu t shunt regulator output control of a three terminal fixed regulator single supply comparator with temperature compensated threshold higher current shunt regulator series regulator over voltage / under voltage protection circuit
ztl431/ztl432 document number: ds33263 rev. 16 - 2 6 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 dc test circuits notes deviation of reference input vo ltage, vdev, is defined as the maximum variation of the reference input voltage over the full temperature range. the average temperature coefficient of the reference input voltage, v ref is defined as: v ref (ppm/c) = v dev ? 1,000,000 v ref (t1-t2) the dynamic output impedance, r z , is defined as: r z = v z i z when the device is programmed with two external resistors, r1 and r2, (figure 2), the dynamic output impedance of the overall circuit, r' z , is defined as: r' z = r z (1 + r1 ) r2 stability boundary the ztl431 and ztl432 are stable with a range of capacitive loads. a zone of instability exists as demonstrated in the typical characteristic graph on page 4. the graph shows typical conditions. to ensure reliable st ability a capacitor of 4.7nf or greater is recommended between anode and cathode.
ztl431/ztl432 document number: ds33263 rev. 16 - 2 7 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 ordering information tol. ordering code pack part mark status* reel size tape width (mm) quantity per reel 1% ztl431ae5ta sot25 31a active 7?, 180mm 8 3000 ztl431affta sot23f 31a active 7?, 180mm 8 3000 ztl431afta sot23 31a active 7?, 180mm 8 3000 ztl431aqfta (note 4) sot23 31a active 7?, 180mm 8 3000 ztl431ah6ta sot363 31a active 7?, 180mm 8 3000 ztl431ase5ta sot25 s2a active 7?, 180mm 8 3000 ztl432affta sot23f 32a active 7?, 180mm 8 3000 ztl432afta sot23 32a active 7?, 180mm 8 3000 0.5% ztl431be5ta sot25 31b active 7?, 180mm 8 3000 ztl431bffta sot23f 31b active 7?, 180mm 8 3000 ztl431bfta sot23 31b active 7?, 180mm 8 3000 ztl431bh6ta sot363 31b active 7?, 180mm 8 3000 ZTL432BFFTA sot23f 32b active 7?, 180mm 8 3000 ztl432bfta sot23 32b active 7?, 180mm 8 3000 note: 4. automotive products are aec-q100 qualified and are ppap capable. automotive, aec-q100 and standard products are elect rically and thermally the same, except where specified. for more information, please refer to http://www.diodes.c om/quality/product_compliance_defin itions/. package outline dimensions please see ap02002 at http://www.diodes.c om/datasheets/ap02002.pdf for latest version. sot23 sot23f sot23 dim min max typ a 0.37 0.51 0.40 b 1.20 1.40 1.30 c 2.30 2.50 2.40 d 0.89 1.03 0.915 f 0.45 0.60 0.535 g 1.78 2.05 1.83 h 2.80 3.00 2.90 j 0.013 0.10 0.05 k 0.903 1.10 1.00 k1 - - 0.400 l 0.45 0.61 0.55 m 0.085 0.18 0.11 ?? 0 8 - all dimensions in mm sot23f dim min max typ a 0.80 1.00 0.90 a1 0.00 0.10 ?? b 0.35 0.45 0.40 c 0.10 0.20 0.15 d 2.80 3.00 2.90 e ? ? 0.95 e1 1.80 2.00 1.90 e 2.30 2.50 2.40 e1 1.50 1.70 1.60 l 0.48 0.68 0.58 l1 0.30 0.50 0.40 r 0.05 0.15 0.10 all dimensions in mm a m j l d f b c h k g k1 b (x3) e1 e d a l1 c a1 r l e e1
ztl431/ztl432 document number: ds33263 rev. 16 - 2 8 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 package outline dimensions (cont.) please see ap02002 at http://www.diodes.c om/datasheets/ap02002.pdf for latest version. sot363 sot25 t092 sot363 dim min max typ a 0.10 0.30 0.25 b 1.15 1.35 1.30 c 2.00 2.20 2.10 d 0.65 typ f 0.40 0.45 0.425 h 1.80 2.20 2.15 j 0 0.10 0.05 k 0.90 1.00 1.00 l 0.25 0.40 0.30 m 0.10 0.22 0.11 ?? 0 8 - all dimensions in mm sot25 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 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 to92 dim min max typ a 3.45 3.66 ? b 4.27 4.78 ? b ? ? 0.38 c ? ? 0.38 d ? ? 3.87 e 4.32 4.83 ? e ? ? 1.27 e2 2.40 2.90 ? l 12.98 15.00 ? l1 12.80 15.00 ? l2 0.80 - ? l3 2.00 3.00 ? n 1.22 1.37 ? all dimensions in mm a m j l d b c h k f a m j l d b c h k n ? ejection mark loose product taped product ejection mark b e b e e d n c e2 e2 l1 e l2 l3 a l
ztl431/ztl432 document number: ds33263 rev. 16 - 2 9 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 suggested pad layout please see ap02001 at http://www.diodes.com/ datasheets/ap02001.pdf for the latest version. sot23 sot23f sot363 sot25 dimensions value (in mm) z 2.9 x 0.8 y 0.9 c 2.0 e 1.35 dimensions value (in mm) c 0.95 x 0.60 y 0.80 y1 1.80 dimensions value (in mm) z 2.5 g 1.3 x 0.42 y 0.6 c1 1.9 c2 0.65 dimensions value (in mm) z 3.20 g 1.60 x 0.55 y 0.80 c1 2.40 c2 0.95 x e y c z c y1 y (3x) x (3x) x z y c1 c2 c2 g x z y c1 c2 c2 g
ztl431/ztl432 document number: ds33263 rev. 16 - 2 10 of 10 www.diodes.com may 2013 ? diodes incorporated a product line o f diodes incorporated ztl431/ztl432 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 ma ke modifications, enhancements, im provements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability ari sing 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 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 incorporat ed 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 wh atsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes inco rporated products for any unintended or unauthorized application, customers shall i ndemnify and hold diodes incorporated and its representat ives 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. this document is written in english but may be translated into mu ltiple languages for reference. only the english version of t his document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized for use as critical comp onents 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 inst ructions 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 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 the ir products and any use of diodes incorporated products in such safety-critica l, 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 incorporate d and its representatives against any damages arising out of the use of diodes incorporated products in such safety-critical, life suppor t devices or systems. copyright ? 2013, diodes incorporated www.diodes.com
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