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1. general description three-terminal shunt regulator family with an output voltage range between v ref and 36 v, to be set by two external resistors. ? the tl431xdbzr types feature an enhan ced stability area with a very low load capacity requirement. ? the tl431xfdt types offer an enh anced stability area and a higher electromagnetic interference (e mi) ruggedness, for example, for switch mode power supply (smps) applications. ? the tl431xsdt types are designed for standard requirements and linear applications. tl431 family adjustable precis ion shunt regulator rev. 4 ? 30 june 2011 product data sheet sot23 table 1. product overview reference voltage tolerance (v ref ) temperature range (t amb ) pinning configuration (see table 5 ) 0 to 70 ?c ? 40 to 85 ?c ? 40 to 125 ?c 2 % tl431cdbzr tl431idbzr tl431qdbzr normal pinning tl431fdt normal pinning tl431mfdt mirrored pinning tl431sdt normal pinning tl431msdt mirrored pinning 1 % tl431acdbzr tl431aidbzr tl431aqdbzr normal pinning tl431afdt normal pinning tl431amfdt mirrored pinning tl431asdt normal pinning tl431amsdt mirrored pinning 0.5 % tl431bcdbzr tl431bidbzr tl431bqdbzr normal pinning tl431bfdt normal pinning TL431BMFDT mirrored pinning tl431bsdt normal pinning tl431bmsdt mirrored pinning
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 2 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 2. features and benefits ? programmable output voltage up to 36 v ? three different reference voltage tolerances: ? standard grade: 2 % ? a-grade: 1 % ? b-grade: 0.5 % ? typical temperature drift: 6 mv (in a range of 0 q c up to 70 q c) ? low output noise ? typical output impedance: 0.2 : ? sink current capability: 1 ma to 100 ma ? aec-q100 qualified (grade 1) 3. applications ? shunt regulator ? precision current limiter ? precision constant current sink ? isolated feedback loop for switch mode power supply (smps) 4. quick reference data table 2. quick reference data symbol parameter conditions min typ max unit v ka cathode-anode voltage v ref -36v i k cathode current 1 - 100 ma v ref reference voltage v ka =v ref ; i k =10ma; t amb =25 qc standard-grade (2 %) 2440 2495 2550 mv a-grade (1 %) 2470 2495 2520 mv b-grade (0.5 %) 2483 2495 2507 mv
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 3 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 5. ordering information table 3. ordering information type number package name description version tl431cdbzr - plastic surface-mounted package; 3 leads sot23 tl431idbzr tl431qdbzr tl431fdt tl431mfdt tl431sdt tl431msdt tl431acdbzr tl431aidbzr tl431aqdbzr tl431afdt tl431amfdt tl431asdt tl431amsdt tl431bcdbzr tl431bidbzr tl431bqdbzr tl431bfdt TL431BMFDT tl431bsdt tl431bmsdt
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 4 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 6. marking [1] * = placeholder for manufacturing site code. 7. functional diagram the tl431 family comprises a range of 3-terminal adjustable shunt regulators, with specified thermal stability ov er applicable automotive and commercial temperature ranges. the output voltage may be set to any value between v ref (approximately 2.5 v) and 36 v with two external resistors (see figure 8 ). these devices have a typical output impedance of 0.2 ? . active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements fo r zener diodes in many applications like on-board regulation, adjustable power supplies and switching power supplies. table 4. marking codes type number marking code [1] type number marking code [1] tl431cdbzr ca* tl431asdt rl* tl431idbzr cb* tl431amsdt lq* tl431qdbzr cc* tl431bcdbzr cg* tl431fdt ar* tl431bidbzr ch* tl431mfdt au* tl431bqdbzr cj* tl431sdt rm* tl431bfdt at* tl431msdt lr* TL431BMFDT aw* tl431acdbzr cd* tl431bsdt ma* tl431aidbzr ce* tl431bmsdt mb* tl431aqdbzr cf* - - tl431afdt as* - - tl431amfdt av* - - fig 1. functional diagram v ref anode cathode ref 006aab569
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 5 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 8. pinning information 9. limiting values [1] device mounted on an fr4 printed-circuit board (pcb), single-sided copper, tin-plated and standard footprint. [2] device mounted on an fr4 pcb, single-sided copper, tin-plated, mounting pad for anode 1 cm 2 . [3] device mounted on a ceramic pcb, al 2 o 3 , standard footprint. table 5. pinning pin symbol description simplified outline graphic symbol normal pinning: all types without mfdt and msdt ending 1 k cathode 2 ref reference 3 a anode mirrored pinning: all types with mfdt and msdt ending 1 ref reference 2 k cathode 3 a anode 12 3 006aab355 ref ak 12 3 006aab355 ref ak table 6. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit v ka cathode-anode voltage - 37 v i k cathode current ? 100 150 ma i ref reference current ? 0.05 10 ma p tot total power dissipation t amb ? 25 ?c [1] -350mw [2] -580mw [3] -950mw t j junction temperature - 150 ?c t amb ambient temperature tl431xcdbzr 0 +70 ?c tl431xidbzr ? 40 +85 ?c tl431xqdbzr tl431xfdt tl431xsdt ? 40 +125 ?c t stg storage temperature ? 65 +150 ?c
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 6 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 10. recommended operating conditions (1) ceramic pcb, al 2 o 3 , standard footprint (2) fr4 pcb, mounting pad for anode 1 cm 2 (3) fr4 pcb, standard footprint fig 2. power derating curves table 7. esd maximum ratings t amb =25 ? c unless otherwise specified. symbol parameter conditions min max unit v esd electrostatic discharge voltage mil-std-883 (human body model) -4kv t amb (c) ?75 175 125 25 75 ?25 006aab570 500 750 250 1000 1250 p tot (mw) 0 (1) (2) (3) table 8. operating conditions symbol parameter conditions min max unit v ka cathode-anode voltage v ref 36 v i k cathode current 1 100 ma
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 7 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 11. thermal characteristics [1] device mounted on an fr4 pcb, single-si ded copper, tin-plated and standard footprint. [2] device mounted on an fr4 pcb, single-sided copper, tin-plated, mounting pad for anode 1 cm 2 . [3] device mounted on a ceramic pcb, al 2 o 3 , standard footprint. [4] soldering point of anode. 12. characteristics table 9. thermal characteristics symbol parameter conditions min typ max unit r th(j-a) thermal resistance from junction to ambient in free air [1] --360k/w [2] --216k/w [3] --132k/w r th(j-sp) thermal resistance from junction to solder point [4] --50k/w table 10. characteristics t amb =25 ? c unless otherwise specified. symbol parameter conditions min typ max unit standard-grade (2 %): tl431cdbzr; tl431idbzr; tl431qdbzr; tl431fdt; tl431mfdt; tl431sdt; tl431msdt v ref reference voltage v ka =v ref ; i k = 10 ma 2440 2495 2550 mv ? v ref reference voltage variation v ka =v ref ; i k =10ma tl431cdbzr t amb =0 ? cto70 ? c-61 6m v tl431idbzr t amb = ? 40 ? cto85? c - 14 34 mv tl431qdbzr tl431fdt tl431mfdt tl431sdt tl431msdt t amb = ? 40 ? c to 125 ?c ? v ref / ? v ka reference voltage variation to cathode-anode voltage variation ratio i k =10ma ? v ka =10vtov ref - ? 1.4 ? 2.7 mv/v ? v ka =36vto10v - ? 1 ? 2mv/v i ref reference current i k =10ma; r1 = 10 k ? ; r2 = open -24 ? a ? i ref reference curre nt variation i k =10ma; r1 = 10 k ? ; r2 = open tl431cdbzr t amb =0 ? cto70 ? c-0 . 41 . 2 ? a tl431idbzr t amb = ? 40 ? cto85? c- 0.82.5 ? a tl431qdbzr tl431fdt tl431mfdt tl431sdt tl431msdt t amb = ? 40 ? c to 125 ?c i k(min) minimum cathode current v ka =v ref -0 . 41m a
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 8 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator i off off-state current v ka =36v; v ref =0 - 0.1 1 ? a z ka dynamic cathode-anode impedance i k =1mato100ma; v ka =v ref ; f < 1 khz -0.20.5 ? a-grade(1%): tl431acdbzr; tl431aidbzr; tl4 31aqdbzr; tl431afdt; tl431amfdt; tl431asdt; tl431amsdt v ref reference voltage v ka =v ref ; i k = 10 ma 2470 2495 2520 mv ? v ref reference voltage variation v ka =v ref ; i k =10ma tl431acdbzr t amb =0 ? cto70 ? c-61 6m v tl431aidbzr t amb = ? 40 ? cto85? c - 14 34 mv tl431aqdbzr tl431afdt tl431amfdt tl431asdt tl431amsdt t amb = ? 40 ? c to 125 ?c ? v ref / ? v ka reference voltage variation to cathode-anode voltage variation ratio i k =10ma ? v ka =10vtov ref - ? 1.4 ? 2.7 mv/v ? v ka =36vto10v - ? 1 ? 2mv/v i ref reference current i k =10ma; r1 = 10 k ? ; r2 = open -24 ? a ? i ref reference curre nt variation i k =10ma; r1 = 10 k ? ; r2 = open tl431acdbzr t amb =0 ? cto70 ? c-0 . 41 . 2 ? a tl431aidbzr t amb = ? 40 ? cto85? c- 0.82.5 ? a tl431aqdbzr tl431afdt tl431amfdt tl431asdt tl431amsdt t amb = ? 40 ? c to 125 ?c i k(min) minimum cathode current v ka =v ref tl431acdbzr t amb =0 ? cto70 ? c-0 . 40 . 6m a tl431aidbzr t amb = ? 40 ? cto85? c tl431aqdbzr tl431afdt tl431amfdt tl431asdt tl431amsdt t amb = ? 40 ? c to 125 ?c i off off-state current v ka =36v; v ref =0 - 0.1 0.5 ? a z ka dynamic cathode-anode impedance i k =1mato100ma; v ka =v ref ; f < 1 khz -0 . 20 . 5 ? table 10. characteristics ?continued t amb =25 ? c unless otherwise specified. symbol parameter conditions min typ max unit
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 9 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator b-grade(0.5%): tl431bcdbzr; tl431bidbzr; tl4 31bqdbzr; tl431bfdt; TL431BMFDT; tl431bsdt; tl431bmsdt v ref reference voltage v ka =v ref ; i k = 10 ma 2483 2495 2507 mv ? v ref reference voltage variation v ka =v ref ; i k =10ma tl431bcdbzr t amb =0 ? cto70 ? c-61 6m v tl431bidbzr t amb = ? 40 ? cto85? c - 14 34 mv tl431bqdbzr tl431bfdt TL431BMFDT tl431bsdt tl431bmsdt t amb = ? 40 ? c to 125 ?c ? v ref / ? v ka reference voltage variation to cathode-anode voltage variation ratio i k =10ma ? v ka =10vtov ref - ? 1.4 ? 2.7 mv/v ? v ka =36vto10v - ? 1 ? 2mv/v i ref reference current i k =10ma; r1 = 10 k ? ; r2 = open -24 ? a ? i ref reference curre nt variation i k =10ma; r1 = 10 k ? ; r2 = open tl431bcdbzr t amb =0 ? cto70 ? c-0 . 41 . 2 ? a tl431bidbzr t amb = ? 40 ? cto85? c- 0.82.5 ? a tl431bqdbzr tl431bfdt TL431BMFDT tl431bsdt tl431bmsdt t amb = ? 40 ? c to 125 ?c i k(min) minimum cathode current v ka =v ref tl431bcdbzr t amb =0 ? cto70 ? c-0 . 40 . 6m a tl431bidbzr t amb = ? 40 ? cto85? c tl431bqdbzr tl431bfdt TL431BMFDT tl431bsdt tl431bmsdt t amb = ? 40 ? c to 125 ?c i off off-state current v ka =36v; v ref =0 - 0.1 0.5 ? a z ka dynamic cathode-anode impedance i k =1mato100ma; v ka =v ref ; f < 1 khz -0.20.5 ? table 10. characteristics ?continued t amb =25 ? c unless otherwise specified. symbol parameter conditions min typ max unit
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 10 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator i k =10ma; v ka =v ref v ka =v ref ; t amb =25 ? c fig 3. reference voltage as a function of ambient temperature; typical values fig 4. cathode current as a function of cathode-anode voltage; typical values i k =10ma; v ka =v ref fig 5. test circuit to figure 3 and figure 4 t amb (c) ?75 125 75 ? 25 25 006aab571 2.48 2.52 2.44 2.56 2.60 v ref (v) 2.40 v ka (v) ?23 2 01 ?1 006aab572 0 50 ?50 100 150 i k (ma) ?100 006aab573 gnd v ref v ka input i k
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 11 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator i k =10ma; r1=10k ? ; r2 = open i k =10ma; t amb =25 ? c fig 6. reference current as a function of ambient temperature; typical values fig 7. reference voltage variation as a function of cathode-anode voltage; typical values fig 8. test circuit to figure 6 and figure 7 t amb (c) ?75 125 75 ? 25 25 006aab574 2.0 3.0 1.0 4.0 5.0 i ref (a) 0.0 v ka (v) 040 30 10 20 006aab575 ?40 ?20 0 v ref (mv) ?60 006aab576 gnd v ref v ka input i k i ref r1 r2 v ka v ref 1 r1 r2 ------ - + ?? ?? ? i ref r1 ? + =
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 12 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator v ka =36v; v ref =0v fig 9. off-state current as a function of ambient temperatur e; typical values v ka =36v; v ref =0v fig 10. off-state current as a function of ambient te mperature; test circuit t amb (c) ?75 125 75 ? 25 25 006aab577 100 150 50 200 250 i off (na) 0 006aab578 gnd v ka input i off
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 13 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator t amb =25 ? c (1) input (2) output t amb =25 ? c (1) input (2) output fig 11. all types except tl431xfdt and tl431xsdt: input voltage and output voltage as a function of time; typical values fig 12. tl431xfdt: input voltage and output voltage as a function of time; typical values t amb =25 ? c (1) input (2) output t amb =25 ? c fig 13. tl431xsdt: input voltage and output voltage as a function of time; typical values fig 14. test circuit to figure 11 , figure 12 and figure 13 t (s) ?17 5 13 006aab579 2 4 6 v in ; v out (v) 0 (1) (2) t (s) ?17 5 13 006aac478 2 4 6 v in ; v out (v) 0 (1) (2) t (s) ?17 5 13 006aab580 2 4 6 v in ; v out (v) 0 (1) (2) 006aab581 gnd v ka 220 50 pulse generator f = 100 khz
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 14 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator i k =10ma; t amb =25 ? ci k =10ma; t amb =25 ? c fig 15. all types except tl431xfdt and tl431xsdt: voltage amplification as a function of frequency; typical values fig 16. tl431xfdt: voltage amplificatio n as a function of frequency; typical values i k =10ma; t amb =25 ? ci k =10ma; t amb =25 ? c fig 17. tl431xsdt: voltage amplification as a function of frequency; typical values fig 18. test circuit to figure 15 , figure 16 and figure 17 006aab583 20 40 60 a v (db) 0 f (khz) 11 0 4 10 3 10 10 2 006aac479 20 40 60 a v (db) 0 f (khz) 11 0 4 10 3 10 10 2 006aab582 20 40 60 a v (db) 0 f (khz) 11 0 4 10 3 10 10 2 006aab584 gnd v ka i k 232 15 k 8.25 k 9 pf
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 15 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator i k =10ma; t amb =25 ? ci k =10ma; t amb =25 ? c fig 19. all types except tl431xfdt and tl431xsdt: dynamic cathode-anode impedance as a function of frequency; typical values fig 20. tl431xfdt: dynamic cathode-anode impedance as a function of frequency; typical values i k =10ma; t amb =25 ? ci k =10ma; t amb =25 ? c fig 21. tl431xsdt: dynamic cathode-anode impedance as a function of frequency; typical values fig 22. test circuit to figure 19 , figure 20 and figure 21 006aab585 10 1 10 2 z ka () 10 ?1 f (khz) 110 4 10 3 10 10 2 006aac480 10 1 10 2 z ka () 10 ?1 f (khz) 110 4 10 3 10 10 2 006aab586 10 1 10 2 z ka () 10 ?1 f (khz) 110 4 10 3 10 10 2 006aab587 gnd v ka i k 50 1 k
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 16 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator t amb =25 ? c (1) v ka =v ref v ka = 5 v: no oscillation v ka = 10 v: no oscillation v ka = 15 v: no oscillation fig 23. all types except tl431xfdt and tl431xsdt: cathode current as a function of load capacitance; typical values v ka =v ref t amb =25 ? c v ka > 5 v: stable operation t amb =25 ? c fig 24. test circuit (1) to figure 23 fig 25. test circuit (2) to figure 23 006aab588 40 60 20 80 100 i k (ma) 0 c l (nf) 1 10 4 10 3 10 10 2 stable oscillation stable (1) (1) 006aab589 gnd c l i k 150 v batt 006aab590 gnd c l i k 150 v batt r2 r1 = 10 k
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 17 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator t amb =25 ? c (1) v ka =v ref v ka = 5 v: no oscillation v ka = 10 v: no oscillation v ka = 15 v: no oscillation fig 26. tl431xfdt: cathode current as a func tion of load capacitance; typical values v ka =v ref t amb =25 ? c v ka > 5 v: stable operation t amb =25 ? c fig 27. test circuit (1) to figure 26 fig 28. test circuit (2) to figure 26 006aac481 40 60 20 80 100 i k (ma) 0 10 ?1 c l (nf) 10 3 10 4 10 2 11 0 stable oscillation stable (1) (1) 006aab589 gnd c l i k 150 v batt 006aab590 gnd c l i k 150 v batt r2 r1 = 10 k
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 18 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator t amb =25 ? c (1) v ka =v ref (2) v ka =5v v ka = 10 v: no oscillation v ka = 15 v: no oscillation fig 29. tl431xsdt: cathode current as a function of load capacitance; typical values v ka =v ref t amb =25 ? c v ka =5v v ka > 10 v: stable operation t amb =25 ? c fig 30. test circuit (1) to figure 29 fig 31. test circuit (2) to figure 29 006aab591 40 60 20 80 100 i k (ma) 0 10 ?1 c l (nf) 10 3 10 4 10 2 11 0 stable oscillation stable (2) (2) (1) (1) 006aab589 gnd c l i k 150 v batt 006aab590 gnd c l i k 150 v batt r2 r1 = 10 k
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 19 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 13. application information fig 32. shunt regulator ; fig 33. series pass regulator fig 34. single-supply comparator with temperature-compensated threshold 006aab592 v out r1 r2 v+ v out 1 r1 r2 ------ - + ?? ?? v ref ? = 006aab593 v out r1 r2 v+ v out 1 r1 r2 ------ - + ?? ?? v ref ? = v out min ?? v ref v be += 006aab594 v out v+ v in v th v ref = v in v ref v out 0 ??? v in v ref v out 2v ???
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 20 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator fig 35. constant current source fig 36. high-current shunt regulator fig 37. constant current sink 006aab595 i out r cl v+ i out v ref r cl --------- = 006aab596 v out r1 r2 v+ v out 1 r1 r2 ------ - + ?? ?? v ref ? = 006aab597 i sink r s v+ i sink v ref r s --------- =
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 21 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 14. test information 14.1 quality information this product has been qualified in accordance with the automotive electronics council (aec) standard q100 - failure mechanism based stress test qualification for integrated circuits , and is suitable for use in automotive applications. 15. package outline fig 38. tl431 in control loop of smps 006aac482 v out r1 r2 gnd r3 ref gnd regulator line fig 39. package outline sot23 (to-236ab) 04-11-04 dimensions in mm 0.45 0.15 1.9 1.1 0.9 3.0 2.8 2.5 2.1 1.4 1.2 0.48 0.38 0.15 0.09 12 3
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 22 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 16. packing information [1] for further information and the avai lability of packing methods, see section 20 . table 11. packing methods the indicated -xxx are the last thre e digits of the 12nc ordering code. [1] type number package description packing quantity 3000 10000 tl431cdbzr sot23 4 mm pitch, 8 mm tape and reel -215 -235 tl431idbzr tl431qdbzr tl431fdt tl431mfdt tl431sdt tl431msdt tl431acdbzr tl431aidbzr tl431aqdbzr tl431afdt tl431amfdt tl431asdt tl431amsdt tl431bcdbzr tl431bidbzr tl431bqdbzr tl431bfdt TL431BMFDT tl431bsdt tl431bmsdt
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 23 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 17. soldering fig 40. reflow soldering footprint sot23 (to-236ab) fig 41. wave soldering footprint sot23 (to-236ab) solder lands solder resist occupied area solder paste sot023_fr 0.5 (3) 0.6 (3) 0.6 (3) 0.7 (3) 3 1 3.3 2.9 1.7 1.9 2 dimensions in mm solder lands solder resist occupied area preferred transport direction during soldering sot023_fw 2.8 4.5 1.4 4.6 1.4 (2) 1.2 (2) 2.2 2.6 dimensions in mm
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 24 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 18. revision history table 12. revision history document id release date data sheet status change notice supersedes tl431_fam v.4 20110630 product data sheet - tl431_fam v.3 modifications: ? table 10 ? characteristics ? : temperature conditions explained; i k(min) updated. tl431_fam v.3 20101105 product data sheet - tl431_fam v.2 tl431_fam v.2 20100120 product data sheet - tl431_fam v.1 tl431_fam v.1 20090806 product data sheet - -
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 25 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator 19. legal information 19.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 19.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 19.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use ? nxp semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer?s own risk. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. export control ? this document as well as the item(s) described herein may be subject to export control regulations. export might require a prior authorization from national authorities. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification.
tl431_fam all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2011. all rights reserved. product data sheet rev. 4 ? 30 june 2011 26 of 27 nxp semiconductors tl431 family adjustable precision shunt regulator quick reference data ? the quick reference data is an extract of the product data given in the limiting values and characteristics sections of this document, and as such is not comple te, exhaustive or legally binding. 19.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 20. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com
nxp semiconductors tl431 family adjustable precision shunt regulator ? nxp b.v. 2011. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 30 june 2011 document identifier: tl431_fam please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 21. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 2 3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 ordering information . . . . . . . . . . . . . . . . . . . . . 3 6 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 functional diagram . . . . . . . . . . . . . . . . . . . . . . 4 8 pinning information . . . . . . . . . . . . . . . . . . . . . . 5 9 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 10 recommended operating conditions. . . . . . . . 6 11 thermal characteristics . . . . . . . . . . . . . . . . . . 7 12 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 7 13 application information. . . . . . . . . . . . . . . . . . 19 14 test information . . . . . . . . . . . . . . . . . . . . . . . . 21 14.1 quality information . . . . . . . . . . . . . . . . . . . . . 21 15 package outline . . . . . . . . . . . . . . . . . . . . . . . . 21 16 packing information . . . . . . . . . . . . . . . . . . . . 22 17 soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 18 revision history . . . . . . . . . . . . . . . . . . . . . . . . 24 19 legal information. . . . . . . . . . . . . . . . . . . . . . . 25 19.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 25 19.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 19.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 19.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 26 20 contact information. . . . . . . . . . . . . . . . . . . . . 26 21 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

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