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| 1. general description the SSL21101T is a switch mode power supply (smps) driver ic. it is designed to drive led devices typically in flyback configuratio ns. the device includes a high-voltage power switch and a circuit enabling start-up directly from the rectified mains voltage. it has accurate control of the output current. 2. features and benefits ? small printed-circuit board (pcb) footprint and compact solution with a small form factor ? ease of integration ? low component count (complete application with about 25 components) ? ac/dc offline non-dimmable led driver from 100 v (ac) to 230 v (ac) ? primary side sensing (no optocoupler required) ? true current source behavior: ? led current independent of mains voltage, led voltage, temperature and coil variation ? high led current accuracy ( ? 3%) ? efficiency up to 90 % depending on the application ? smart digital control (sdc) to de al with all kind of applications: ? high-power factor (pf; > 0.95) and low total harmonic distortion mode (thd down to 20 %) ? small form factor (low led cu rrent mode ripple with small electrolytic capacitors) - compatible with exception clause iec61000-3-2 ? internal protections: ? short-winding protection ? internal overtemperature protection (otp) ? led short protection ? led open protection ? undervoltage lockout (uvlo) ? external temperature protection with built-in negative temperature coefficient (ntc) ? internal supply voltage generation enabling start-up from the rectified mains voltage ? compatible with wall switches with built -in indication light during standby ? so14 package SSL21101T greenchip driver for led lighting rev. 3 ? 7 june 2012 product data sheet
SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 2 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 3. applications ? the SSL21101T is suitable for different power requirements: ? ssl, retrofit lamps (for example: small-size light bulbs, led spots, up to 10 w or 12 w ? led modules, mains ac/dc converter (f or example: down-lights, up to 15 w) ? led strings (for example: retail display; up to 15 w) 4. quick reference data [1] for a given v i(iledref) and v ntc > 1.25 v. see table 5 . 5. ordering information table 1. quick reference data symbol parameter conditions min typ max unit v cc supply voltage functional 13 22 25.5 v r dson drain-source on-state resistance t j =25 ? c-6.8- ? t j = 125 ? c-9 . 5- ? f sw(max) maximum switching frequency dcm mode; main = 50 hz; mode = 50 khz [1] 49.7 51.2 52.7 khz dcm mode; main = 60 hz; mode = 50 khz [1] 59.7 61.4 63.2 khz dcm mode; modemain = 50 hz; mode = 100 khz [1] 99.4 102.4 105.4 khz dcm mode; main = 60 hz; mode = 100 khz [1] 119.4 122.9 126.4 khz i m(drain) peak current on pin drain 0 - 1.2 a v drain voltage on pin drain ? 0.4 - +700 v table 2. ordering information type number package name description version SSL21101T/1 so14 plastic small outline packa ge; 14 leads; body width 3.9 mm sot108-1 SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 3 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 6. block diagram 7. pinning information 7.1 pinning fig 1. block diagram aaa-001383 ldo 100 hz/ 120 hz f sw(max) t off f sw(main) jfet digital pll digital control fs control dvdt driver gnd iledref ntc mode rmain source drain v dd(intregd) v cc SSL21101T fig 2. pin configuration SSL21101T v cc drain rmain gnd gnd gnd v dd(intregd) gnd mode source ntc dnc iledref gnd aaa-001384 1 2 3 4 5 6 7 8 10 9 12 11 14 13 SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 4 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 7.2 pin description 8. functional description the SSL21101T is an integrated circuit intended for retrofit small form factor ssl lamps. it provides a controller with an internal high-voltage switch to drive leds. it operates directly from the rectified mains. table 3. pin description symbol pin description v cc 1 supply voltage rmain 2 current source proport ionally equivalent of v main gnd 3 ground v dd(intregd) 4 internal regulated supply mode 5 power factor/thd and maximum switching frequency control input ntc 6 led temperatur e protection input iledref 7 led current control input gnd 8 ground dnc 9 do not connect source 10 source of internal power switch gnd 11 ground gnd 12 ground gnd 13 ground drain 14 drain of internal power switch SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 5 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 8.1 true current source behavior the led current (i led ) of a flyback converter can be calculated with equation 1 : (1) where: ? n is the turn ratio of the transformer ? i m is the peak current ? ?2t sw is the secondary stroke switching time ? t sw is the switching period the relationship between the led current and pin iledref can be calculated with equation 2 : (2) ? 1+ ? 2+ ? 3=1 v drain : voltage on pin drain ? 1t sw : primary stroke switching time ? 2t sw : secondary stroke switching time ? 3t sw : free running time t sw : switching time v m : peak voltage v i : input voltage n: transformer turn ratio v out : output voltage fig 3. timing v m v i + nv out v i v drain primary stroke switching time secondary stroke switching time free running 1t sw 2t sw 3t sw t sw aaa-001586 i led 1 2 -- - n ? i m ? ? 2t sw t sw ------------- ? = i led 0.45 n v i iledref ?? ?? v dd intregd ?? r source ? ---------------------------------------------------------------- - = SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 6 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting where: ? v i(iledref) is the voltage defined at the input of pin iledref ? v dd(intregd) is the internal regulated voltage ? r source is the resistor connected to pin source of the power mos transistor. the true current source behavior and the led current accuracy are achieved using an internal digital control. the internal digital control compares the iledref pin reference with the measurement of the average led current over a half-main cycle. the primary peak current (i m ) is adjusted at each half-main cycle to achieve the expected led current. the expected primary peak current value on the application can be calculated with equation 3 : (3) where: ? v th(det)source is the detection threshold voltage on pin source ? r source is the resistor connected to pin source of the power mos transistor 8.2 leading-edge blanking (leb) the controller automatically adjusts leb to avoid wrong detection of the primary peak current. 8.3 dv/dt detection a dv/dt detector block is used on pin drain to detect the end of demagnetization and possible valleys accurately. a valley switching concept is used for efficiency purposes. 8.4 secondary stroke switching time ( ? 2t sw ) a blanking time (t blank ) is applied at the beginning of ?2t sw before observing the demagnetization. ?2t sw must have a value that allows the application to run in dcm mode. for example, for a 100 khz switching frequen cy the application design must provide a typical secondary stroke switching time ( ? 2t sw ) ranging from 4 ? s to 6 ? s. 8.5 mains sensing pin rmain senses the mains voltage (v main in equation 4 ) in real time and transforms it to mains current (i main in equation 4 ): (4) i m v th det ?? source r source ------------------------------------ - = i main v main 2 ? r rmain -------------------------- - = SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 7 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 8.6 modulation type ver sus mode pin input pin mode enables the control of both the thd/led ripple and the switching frequency operation mode. this input has a range of 0 v to v dd(intregd) . depending on the mains frequency (50 hz or 60 hz), the following modes can be selected to ensure a flexible application. ? low thd mode: for example, thd ? 20 %; c i = 200 nf for an 8 w application ? lr mode: c i =2.2 ? f for an 8 w application selecting a maximum switchin g frequency (50 khz/60 khz or 100 khz/120 khz) is also possible. the SSL21101T ic can reach a high-power fa ctor in combination with a low thd without an external pfc. it can also reduce the led current ripple when the low ripple mode is selected. controlling the switch ing frequency value over a main cycle gives the input current waveform. the modulation controller takes into account the information of the boundary conduction mode (bcm) detection. the chip has op timized performances in discontinuous conduction mode (dcm). the ic prevents that the application enters continuous conduction mode (ccm) and forces it to enter boundary conduction mode (bcm). remark: select specific values for external components, such as transformers and r source to avoid forced bcm, otherwise thd and the led current ripple performances are directly impacted. 8.7 supply concept: v cc and undervoltage lockout (uvlo) an integrated junction gate field-effect trans istor (jfet), connected to the drain voltage, provides the start-up current. the ic starts switching when the voltage on pin v cc exceeds the v cc(startup) level. after start-up, an external supply is required, which an auxiliary winding connection can provide. when the voltage on pin v cc drops below the v cc(uvlo) level, the ic stops switching and is reset. table 4. mains resistance/mains current dependency mains voltage mains resistance mains current 220 v (ac)/230 v (ac) 1 m ? 300 ? a 100 v (ac)/120 v (ac) 470 k ? 300 ? a table 5. mode description mode voltage range behavior maximum switching frequency v dd(intregd) ? v mode >5 ? v dd(intregd / 6 low thd 100 khz/120 khz 5 ? v dd(intregd) /6>v mode >4 ? v dd(intregd) / 6 low thd 50 khz/60 khz 4 ? v dd(intregd) /6>v mode >2 ? v dd(intregd) / 6 not functional not applicable 2 ? v dd(intregd) /6>v mode >1 ? v dd(intregd) / 6 low ripple 50 khz/60 khz 1 ? v dd(intregd) /6>v mode ? 0 low ripple 100 khz/120 khz SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 8 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting the ic is compatible with a wa ll switch with built-in light that is activated when wall switch is in the off position. 8.8 peak current detection the cycle-by-cycle peak drain cu rrent limit circuit uses the external source resistor r source to measure the primary peak current. the circuit is activated after the leading edge blanking time. the protection circuit limits the source voltage over resistor r source to v th(det)source , thus limiting the primary peak current. 8.9 overheating protection of the leds input pin ntc ensures the protection of the leds against overheating. the target is: remark: after standby mode, led current only flows again when v ntc exceeds v det(h)(ntc) . there are two detection levels on pin ntc: ? level 1 = v det(h)(ntc) ? level 2 = v det(l)(ntc) these detection levels can be translated to te mperature levels using an ntc resistor for which the levels have been optimized. figure 4 shows an application using a 100 k ? ntc resistor and equivalent temperature detection levels. table 6. ntc description temperature led current v ntc >v det(h)(ntc) led current is 100 % of the expected led current v det(h)(ntc) >v ntc >v det(l)(ntc) linear reduction of led current: 25 % v det(l)(ntc) >v ntc standby mode (led current = 0) fig 4. overheating protection 001aao155 l led /i ledexp 1 80 125 t (?c) l led /i ledexp l ledmin /i ledexp l ledmin /i ledexp 1 v det(h)(ntc) v det(l)(ntc) v ntc (v) SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 9 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 8.10 short-winding protection the short-winding protection circuit is activate d after the leading edge blanking time. if the source voltage exceeds the short-winding protection threshold voltage (v th(swp)source ), the ic stops switching. only a power-on rese t restarts normal operation (switching off the mains voltage). 8.11 output led shor t circuit protection when during one rectified main s waveform the following conditions are true, the output short detection is activated and the ic enters shutdown mode. ? ?2t sw >t prot(sc)led ? ?1t sw SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 11 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 9. limiting values [1] human body model: equivalent to dischar ging a 100 pf capacitor through a 1.5 k ? series resistor. 10. thermal characteristics [1] r th(j-a) can be lower when the gnd pins are connected to an area with sufficient copper on the printed-circuit board. table 7. limiting values in accordance with the absolute ma ximum rating system (iec 60134). symbol parameter conditions min max unit general p tot total power dissipation - 0.8 w t stg storage temperature ? 55 +150 ?c t j junction temperature ? 40 +150 ?c v esd electrostatic discharge voltage human body model (hbm) [1] pins drain and v cc ? 1000 +1000 v all other pins ? 2000 +2000 v charged device model (cdm) ? 500 +500 v voltages v cc supply voltage continuous ? 0.4 +40 v v dd(intregd ) internal regulated supply voltage ? 0.4 +5.5 v v rmain voltage on pin rmain ? 0.4 +1.7 v v source voltage on pin source ? 0.4 +5.5 v v drain voltage on pin drain ? 0.4 +700 v v iledref voltage on pin iledref ? 0.4 +5.5 v v mode voltage on pin mode ? 0.4 +5.5 v v ntc voltage on pin ntc ? 0.4 +5.5 v currents i m(source) peak current on pin source ? 1.2 0 a i m(drain) peak current on pin drain 0 1.2 a i m(rmain) peak current on pin rmain 0 450 ? a table 8. thermal characteristics symbol parameter conditions typ unit r th(j-a) thermal resistance from junction to ambient in free air; so14 package; pcb: 906 mm 2 ; 2-layer; 35 ? m cu/layer 70 k/w SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 12 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 11. characteristics table 9. characteristics t amb =25 ? c symbol parameter conditions min typ max unit supply i cc supply current pin v cc ; v drain >60v; v cc =22v; t j =25 ?c 0.15 0.8 1.4 ma v cc supply voltage functional 13 22 25.5 v i cc(startup) start-up supply current pin v cc ; v drain >60v; v cc =15v; t j =125 ?c - - 1.46 ma v cc(startup) start-up supply voltage 15 17 19 v v cc(uvlo) undervoltage lockout supply voltage 9.5 11 13 v i startup(drain) start-up current on pin drain v drain >60v; v cc =14v; t j =125 ?c 870 1200 1530 ? a v drain >60v; v cc =19v; t j =125 ?c 500 700 900 ? a v br(drain) breakdown voltage on pin drain - - 700 v output stage r dson drain-source on-state resistance t j =25 ? c- 6 . 8 - ? t j =125 ? c- 9.5 - ? (dv/dt) r(drain) rise rate of change voltage on pin drain -6- v/ns (dv/dt) f(drain) fall rate of change voltage on pin drain -3- v/ns t on(high) high on-time mosfet on-time limitation; main = 50 hz; mode = 50 khz 15.8 16.7 17.6 ? s main = 60 hz; mode = 50 khz 13.1 13.9 14.7 ? s main = 50 hz; mode = 100 khz 7.9 8.55 9.3 ? s main = 60 hz; mode = 100 khz 6.5 7.1 7.7 ? s SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 13 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting t prot(sc)led led short-circuit protection time secondary stroke switching time; main = 50 hz 33.8 35.8 37.7 ? s main = 60 hz 28.1 29.8 31.5 ? s temperature protection t th(otp) overtemperature protection threshold temperature junction temperature - 140 - ?c t otp(hys) overtemperature protection trip hysteresis junction temperature -20 ?c regulator v dd(intregd) internal regulated supply voltage 4.6 4.9 5.2 v v dd(rst) reset supply voltage power-on reset - - 4.55 v v prot(vcc) protection voltage on pin vcc 25.5 28 31 v v th(det)source detection threshold voltage on pin source 0.65 - 0.85 v v th(swp)source short-winding protection threshold voltage on pin source -1 . 5 v th(det)source -v demagnetization t blank blanking time main = 50 hz 2.56 2.85 3.14 ? s main = 60 hz 2.14 2.37 2.62 ? s frequency switching f sw(max) maximum switching frequency dcm mode; main = 50 hz; mode = 50 khz [1] 49.7 51.2 52.7 khz dcm -mode; main = 60 hz; mode = 50 khz [1] 59.7 61.4 63.2 khz dcm mode; main = 50 hz; mode = 100 khz [1] 99.4 102.4 105.4 khz dcm mode; main = 60 hz; mode = 100 khz [1] 119.4 122.9 126.4 khz table 9. characteristics ?continued t amb =25 ? c symbol parameter conditions min typ max unit SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 14 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting [1] see table 5 . [2] see figure 4 . true current source (current accuracy) ? i o output current variation main variation: +10 % to ? 15 % ? 3- +3% output voltage variation: ? 20 % ? 3- +3% temperature variation: ? t j = 140 ?c ? 3- + 3% coil variation: ? 20 % ? 3- + 3% ntc v det(h)(ntc) high-level detection voltage on pin ntc 0.23v dd(intregd) 0.25v dd(intregd) 0.27v dd(intregd) v v det(l)(ntc) low-level detection voltage on pin ntc 0.115v dd(intregd) 0.125v dd(intregd) 0.135v dd(intregd) v i led /i ledexp led current to expected led current ratio [2] -1- i ledmin /i ledexp minimum led current to expected led current ratio [2] -0 . 7 5- table 9. characteristics ?continued t amb =25 ? c symbol parameter conditions min typ max unit SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 15 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 12. application information the two different types of application (lthd mode and lr mode) are shown in figure 6 and figure 7 . more information can be found in the application note ?SSL21101T flexible focus flyback led driver application (an11100)? . fig 6. 100 khz low thd application diagram rmain v dd(intregd) v cc drain iledref mode ntc dnc gnd (5) source 001aao156 SSL21101T optional ntc SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 16 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting fig 7. 100 khz low ripple application diagram rmain optional ntc v dd(intregd) v cc drain iledref mode ntc dnc gnd (5) source 001aao157 SSL21101T SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 17 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 13. package outline fig 8. package outline sot108-1 (so14) unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz ywv references outline version european projection issue date iec jedec jeita mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 8.75 8.55 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.0 0.4 sot108-1 x w m a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 7 8 1 14 y 076e06 ms-012 pin 1 index 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.35 0.34 0.16 0.15 0.05 1.05 0.041 0.244 0.228 0.028 0.024 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 99-12-27 03-02-19 0 2.5 5 mm scale so14: plastic small outline package; 14 leads; body width 3.9 mm sot108-1 SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 18 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 14. abbreviations table 10. abbreviations acronym description bcm boundary conduction mode ccm continuous conduction mode cdm charged device model dcm discontinuous conduction mode jfet junction field- effect transistor leb leading-edge blanking led light-emitting diode lr low ripple lthd low total harmonic distortion ntc negative temperature coefficient otp overtemperature protection smps switched mode power supply sdc smart digital control ssl solid-state light thd total harmonic distortion uvlo undervoltage lockout SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 19 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 15. revision history table 11. revision history document id release date data sheet status change notice supersedes SSL21101T v.3 20120607 product data sheet - ssl2110xt v.2 SSL21101T v.2 20120504 objective data sheet - ssl2110xt v.1 ssl2110xt v.1 20110704 objective data sheet - - SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 20 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting 16. legal information 16.1 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 . 16.2 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. 16.3 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 info rmation. nxp semiconductors takes no responsibility for the content in this document if provided by an information source outside of nxp semiconductors. 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 and its suppliers accept no liability for inclusion and/or use of nxp semiconducto rs 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. 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. SSL21101T all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2012. all rights reserved. product data sheet rev. 3 ? 7 june 2012 21 of 22 nxp semiconductors SSL21101T greenchip driver for led lighting export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from competent authorities. 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. non-automotive qualified products ? unless this data sheet expressly states that this specific nxp semicon ductors product is automotive qualified, the product is not suitable for automotive use. it is neither qualified nor tested in accordance with automotive testing or application requirements. nxp semiconductors accepts no liabili ty for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. in the event that customer uses t he product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without nxp semiconductors? warranty of the product for such automotive applicat ions, use and specifications, and (b) whenever customer uses the product for automotive applications beyond nxp semiconductors? specifications such use shall be solely at customer?s own risk, and (c) customer fully indemnifies nxp semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive app lications beyond nxp semiconductors? standard warranty and nxp semiconduct ors? product specifications. 16.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. greenchip ? is a trademark of nxp b.v. 17. 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 SSL21101T greenchip driver for led lighting ? nxp b.v. 2012. 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: 7 june 2012 document identifier: SSL21101T please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 18. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 ordering information . . . . . . . . . . . . . . . . . . . . . 2 6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 pinning information . . . . . . . . . . . . . . . . . . . . . . 3 7.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 functional description . . . . . . . . . . . . . . . . . . . 4 8.1 true current source behavior . . . . . . . . . . . . . . 5 8.2 leading-edge blanking (leb) . . . . . . . . . . . . . 6 8.3 dv/dt detection . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.4 secondary stroke switching time (d2t sw ) . . . . . 6 8.5 mains sensing. . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.6 modulation type versus mode pin input . . . . . 7 8.7 supply concept: v cc and undervoltage lockout (uvlo) . . . . . . . . . . . . . . . . . . . . . . . . 7 8.8 peak current detection . . . . . . . . . . . . . . . . . . . 8 8.9 overheating protection of the leds . . . . . . . . . 8 8.10 short-winding protection . . . . . . . . . . . . . . . . . . 9 8.11 output led short circuit protection. . . . . . . . . . 9 8.12 output led open circuit protection. . . . . . . . . . 9 8.13 limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 11 10 thermal characteristics . . . . . . . . . . . . . . . . . 11 11 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 12 12 application information. . . . . . . . . . . . . . . . . . 15 13 package outline . . . . . . . . . . . . . . . . . . . . . . . . 17 14 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 18 15 revision history . . . . . . . . . . . . . . . . . . . . . . . . 19 16 legal information. . . . . . . . . . . . . . . . . . . . . . . 20 16.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 20 16.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 16.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 16.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 21 17 contact information. . . . . . . . . . . . . . . . . . . . . 21 18 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 |
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