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lm4040q document number: ds36989 rev. 1 - 2 1 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q automotive grade precision micropower shunt voltage references description the lm4040 q is a family of bandgap circuits designed to achieve precision micro - power voltage references of 2.5v, 3.0v and 5.0v. the devices are available in 0.2% b - grade, 0.5% c - grade and 1% d - grade initial tolerances. they are available in small outline sot23 surface mount pac kage which is ideal for applications where space is at a premium. excellent performance is maintained over the 60a to 15ma operating current range with a typical temperature coefficient of only 20ppm/c. the device has been designed to be highly tolerant of capacitive loads therefore maintaining excellent stability. this device offers a pin for pin compatible alternative to the industry standard lm4040 voltage reference for automotive applications . the lm4040q has been qualified to aec - q100 grade 1 and is automotive grade supporting ppaps features ? ? ? ? ? ? ? ? rms ? ? ? ? ? totally lead - free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. green device (note 3) ? ? qualified to aec - q100 standards for high reliability ? ppap capable (note 4) pin assignments applications ? ? 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 chlori ne (<1500ppm total br + cl) and <1000ppm antimony compounds. 4. automotive products are aec - q100 qualified and are ppap capable. automotive, aec - q100 and standard products are electrically and thermally the same, except where specified. for more information, please refer to http://www.diodes.com/quality/produ ct_compliance_definitions/ . * a n o d e c a t h o d e t o p v i e w * p i n 1 m u s t b e l e f t f l o a t i n g o r c o n n e c t e d t o p i n 2 3 1 2 l m 4 0 4 0 f ( s o t 2 3 )
lm4040q document number: ds36989 rev. 1 - 2 2 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q absolute maximum ratings (voltages to gnd unless otherwise stated) parameter rating unit continuous reverse current 20 ma continuous forward current 10 ma operating junction temperature - 40 to + 150 c storage temperature - 55 to + 150 c esd susceptibility hbm human body model 4 kv mm machine model tbc v cdm charged device model tbc kv caution : stresses greater than the 'absolute maximum ratings' specified above, may cause permanent damage to the device. these are stress ratings only; functional operation of the device at conditions between maximum recommended operating conditions and absolute maximum rating s is not implied. device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. semiconductor devices are esd sensitive and may be damaged by exposure to esd events. suitable esd precautions should be taken when handling and transporting these devices. ) package thermal data package ja p dis t a = + 25 c , t j = + 150 c sot23 380 c/w 330mw recommended operating conditions characteristic min max units reverse current 0.06 15 ma operating ambient temperature range - 40 + 125 c
lm4040q document number: ds36989 rev. 1 - 2 3 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q electrical characteristics (@ t a = +25c, unless otherwise specified.) lm4040q - 2.5 symbol parameter conditions typ b limits c limits d limits units (note 5) t a v ref reverse breakdown voltage i r = 100a + 25c 2.5 v reverse breakdown voltage tolerance i r = 100a + 25c 5 12 25 mv - 40 to + 85c 21 29 49 - 40 to + 125c 30 38 63 i rmin minimum operating current + 25c 45 60 60 65 a - 40 to + 85c 65 65 70 - 40 to + 125c 68 68 73 v r /t average reverse breakdown voltage temperature coefficient i r = 10ma - 40 to +125c 20 i r = 1ma 15 100 100 150 ppm/c i r = 100a 15 v r /i r reverse breakdown change with current i rmin i r < 1ma + 25c 0.3 0.8 0.8 1.0 mv - 40 to + 85c 1.0 1.0 1.2 - 40 to + 125c 1.0 1.0 1.2 1ma < i r < 15ma + 25c 2.5 6.0 6.0 8.0 - 40 to + 85c 8.0 8.0 10.0 - 40 to + 125c 8.0 8.0 10.0 z r dynamic output impedance i r = 1ma, f = 120hz , i ac = 0.1i r 0.3 0.8 0.9 1.1 ? e n noise voltage i r = 100a , 10hz < f < 10khz 35 v rms v r long term stability ( non - cumulative ) t = 1000hrs, i r = 100a 120 ppm v hyst thermal hysteresis t = - 40c to = + 125c 0.08 % electrical characteristics (cont inued ) (@ t a = +25c, unless otherwise specified.) lm4040q - 3.0 symbol parameter conditions typ b limits c limits d limits units (note 5) t a v ref reverse breakdown v oltage i r = 100a + 25c 3.0 v reverse breakdown voltage tolerance i r = 100a + 25c 6 15 30 mv - 40 to + 85c 26 34 59 - 40 to + 125c tbd 45 75 i rmin minimum operating current + 25c 47 62 62 67 a - 40 to + 85c 67 67 72 - 40 to + 125c 70 70 75 v r /t average reverse breakdown voltage temperature coefficient i r = 10ma - 40 to +125c 20 i r = 1ma 15 100 100 150 ppm/c i r = 100a 15 v r /i r reverse breakdown change with current i rmin i r < 1ma + 25c 0.4 0.8 0.8 1.0 mv - 40 to + 85c 1.1 1 . 1 1.3 - 40 to + 125c 1.1 1.1 1.3 1ma < i r < 15ma + 25c 2.7 6.0 6.0 8.0 - 40 to + 85c 9.0 9.0 11.0 - 40 to + 125c 9.0 9.0 11.0 z r dynamic output impedance i r = 1ma, f = 120hz , i ac = 0.1i r 0. 4 0. 9 0.9 1. 2 ? e n noise voltage i r = 100a , 10hz < f < 10khz 35 v rms v r long term stability ( non - cumulative ) t = 1000hrs, i r = 100a 120 ppm v hyst thermal hysteresis t = - 40c to = + 125c 0.08 %
lm4040q document number: ds36989 rev. 1 - 2 4 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q electrical characteristics (cont.) (@ t a = +25c, unless otherwise specified.) lm4040q - 5.0 symbol parameter conditions typ b limits c limits d limits units (note 5) t a v ref reverse breakdown voltage i r = 100a + 25c 5.0 v reverse breakdown voltage tolerance i r = 100a + 25c 10 25 50 mv - 40 to + 85c 43 58 99 - 40 to + 125c 60 75 125 i rmin minimum operating current + 25c 54 74 74 79 a - 40 to + 85c 80 80 85 - 40 to + 125c 83 83 88 v r /t average reverse breakdown voltage temperature coefficient i r = 10ma - 40 to +125c 30 i r = 1ma 20 100 100 150 ppm/c i r = 100a 20 v r /i r reverse breakdown change with current i rmin i r < 1ma + 25c 0.5 1.0 1.0 1.3 mv - 40 to + 85c 1.4 1.4 1.8 - 40 to + 125c 1.4 1.4 1.8 1ma < i r < 15ma + 25c 3.5 8.0 8.0 10.0 - 40 to + 85c 12.0 12.0 15.0 - 40 to + 125c 12.0 12.0 15.0 z r dynamic output impedance i r = 1ma, f = 120hz i ac = 0.1i r 0.5 1.1 1.1 1.5 ? e n noise voltage i r = 100a 10hz < f < 10khz 80 v rms v r long term stability (non - cumulative) t = 1000hrs , i r = 100a 120 ppm v hyst themal hysteresis t = - 40c to = + 125c 0.08 % note : 5. unless otherwise stated, voltages specified are relative to the anode pin.
lm4040q document number: ds36989 rev. 1 - 2 5 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q typical characteristics lm4040 q - 2.5 ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 i = 100a r 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 i = 1ma r 10k 100k 1m 100 1k frequency (hz) reference impedance vs. frequency t = 25c i = 100a a r c = 0 l c = 1.0f tantalum l t = 25c i = 1ma a r 10k 100k 1m 100 1k z , r e f e r e n c e i m p e d a n c e ( ) r ? 100 0.01 0.1 1 10 c = 0 l c = 1.0f tantalum l frequency (hz) reference impedance vs. frequency 1 2 3 -1 0 frequency (hz) noise voltage vs. frequency t = 25c i = 100a a r n o i s e ( n v / h z ) ? 500 480 340 300 380 360 440 420 460 400 320 1 2 3 -1 0 v , reverse voltage (v) reference current vs. voltage r i , r e v e r s e c u r r e n t ( a ) r 500 400 -200 -300 0 -100 200 100 300 t = 25c a
lm4040q document number: ds36989 rev. 1 - 2 6 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q typical characteristics lm4040 q - 3.0 ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 i = 100a r 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 10k 100k 1m 100 1k frequency (hz) reference impedance vs. frequency t = 25c i = 100a a r c = 0 l c = 1.0f tantalum l 10k 100k 1m 100 1k z , r e f e r e n c e i m p e d a n c e ( ) r ? 100 0.01 0.1 1 10 frequency (hz) reference impedance vs. frequency 1k 10k 100k 10 100 frequency (hz) noise voltage vs. frequency n o i s e ( n v / h z ) ? 650 450 550 600 500 400 1 2 4 -1 0 v , reverse voltage (v) reference current vs. voltage r i , r e v e r s e c u r r e n t ( a ) r 500 400 -200 -300 0 -100 200 100 300 3 t = 25c a
lm4040q document number: ds36989 rev. 1 - 2 7 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q typical characteristics lm4040 q - 5.0 ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient 40 80 120 -40 0 temperature (c) reference voltage temperature coefficient ? v ( % ) r e f 1.00 0.75 -0.75 -1.00 -0.25 -0.50 0.25 0.00 0.50 i = 1ma r 10k 100k 1m 100 1k frequency (hz) reference impedance vs. frequency 10k 100k 1m 100 1k z , r e f e r e n c e i m p e d a n c e ( ) r ? 100 0.1 1 10 frequency (hz) reference impedance vs. frequency 1k 10k 100k 10 100 frequency (hz) noise voltage vs. frequency n o i s e ( n v / h z ) ? 1200 600 400 1000 800 1 2 3 -1 0 v , reverse voltage (v) reference current vs. voltage r i , r e v e r s e c u r r e n t ( a ) r 500 400 -200 -300 0 -100 200 100 300 t = 25c a 4 5 6 -400
lm4040q document number: ds36989 rev. 1 - 2 8 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q start - u p characteristics lm4040q - 2.5, 3.0 and 5.0 lm4040 - 2.5 lm4040 - 3.0 lm4040 - 5.0 time (s) long pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 2 4 6 8 10 6 5 4 2 1 0 3 time (s) short pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 2 4 6 8 10 6 5 4 2 1 0 3 input output t = 25c r = 30k a s time (s) long pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 2 4 6 8 10 7 5 4 2 1 0 3 6 time (s) short pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 2 4 6 8 10 7 5 4 2 1 0 3 6 time (s) long pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 20 40 60 80 100 10 4 2 0 6 8 12 time (s) short pulse response i n p u t & o u t p u t v o l t a g e ( v ) 0 2 4 6 8 10 10 4 2 0 6 8 12
lm4040q document number: ds36989 rev. 1 - 2 9 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q application information in a conventional shunt regulator application ( figure 1 ), an external series resistor (r s ) is connected between the supply voltage, v s , and the lm4040. r s determines the current that flows through the load (i l ) and the lm4040 (i r ). since load current and supply voltage may vary, r s should be small enough to supply at least the minimum acceptable i r to the lm4040 even when the supply voltage is at its minimum and the load current is at its maximum value. when the supply voltage is at its maximum and i l is at its minimum, r s s hould be large enough so that the current flowing through the lm4040 is less than 15 ma. r s is determined by the supply voltage, (v s ), the load and operating current, (i l and i r ), and the lm4040s reverse breakdown voltage, v r . printed circuit board layout considerations lm4040 q s in the sot23 package have the die attached to pin 1, which results in an electrical contact between pin 2 and pin 3. therefore, pin 1 of the sot - 23 package must be left floating or connected to pin 2. ordering information order code + 25c tol voltage (v) package (note 6 ) package code identification c ode packing: 7 tape and reel qualification grade (note 7) quantity tape width part number suffix LM4040B25QFTA 0.2% 2.5 sot23 f r2b 3 , 000 8mm ta automotive grade lm4040b30qfta 3.0 sot23 f r3b 3 , 000 8mm ta automotive grade lm4040b50qfta 5.0 sot23 f r5b 3 , 000 8mm ta automotive grade lm4040c25qfta 0.5% 2.5 sot23 f r2c 3 , 000 8mm ta automotive grade lm4040c30qfta 3.0 sot23 f r3c 3 , 000 8mm ta automotive grade lm4040c50qfta 5.0 sot23 f r5c 3 , 000 8mm ta automotive grade lm4040d25qfta 1% 2.5 sot23 f r2d 3 , 000 8mm ta automotive grade lm4040d30qfta 3.0 sot23 f r3d 3 , 000 8mm ta automotive grade lm4040d 50q fta 5.0 sot23 f r5d 3 , 000 8mm ta automotive grade note: 6 . pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf . 7 . lm4040q is classified as automotive grade and supports ppap documentation. see lm4040 datasheet for commercial qualified versions. r s v s i r + i l i r i l v r r l r s s i i v v r ? ? ?
lm4040q document number: ds36989 rev. 1 - 2 10 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q marking information rxx : identification code package outline dimensions please see ap0200 2 at http://www.diodes.com/datasheets/ap0200 2 .pdf for the latest version. suggested pad layout please see ap0200 1 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. 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. 890 1. 0 0 0.975 k1 0.903 1.10 1.0 25 l 0.45 0.61 0.55 l 1 0. 2 5 0. 55 0. 40 m 0.085 0.1 50 0.11 0 a ? all dimensions in mm dimensions value (in mm) z 2.9 x 0.8 y 0.9 c 2.0 e 1.35 x e y c z j k1 k l1 gauge plane 0.25 h l m all 7 a c b d g f a
lm4040q document number: ds36989 rev. 1 - 2 11 of 11 www.diodes.com october 2015 ? diodes incorporated lm4040q 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 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 customer or user of t his 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 diodes incorporated website, harmless against 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 unauthorized application , customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arisin g out of, directly or indirectly, any claim of personal injury or death associated 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 fore ign 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 witho ut the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices o r 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 to 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 provided by d iodes 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 5 , diodes incorporated www.diodes.com

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