Infineon Basic LED Driver TLD1124EL. Data Sheet. Automotive. 1 Channel High Side Current Source. Rev. 1.0,

Transcription

1 Infineon Basic LED Driver 1 Channel High Side Curren Source Daa Shee Rev. 1.0, Auomoive

2 1 Overview Block Diagram Pin Configuraion Pin Assignmen Pin Definiions and Funcions General Produc Characerisics Absolue Maximum Raings Funcional Range Thermal Resisance DEN Pin Elecrical Characerisics Inernal Supply / DEN Pin IN_SET Pin Oupu Curren Adjusmen via RSET Smar Inpu Pin ST Pin Diagnosis Selecor Diagnosis Oupu Disable Inpu Load Diagnosis Open Load Shor Circui o GND deecion Elecrical Characerisics IN_SET Pin and Load Diagnosis Power Sage Proecion Over Load Behavior Reverse Baery Proecion Elecrical Characerisics Power Sage Applicaion Informaion Furher Applicaion Informaion Package Oulines Revision Hisory Daa Shee 2 Rev. 1.0,

3 1 Channel High Side Curren Source Basic LED Driver 1 Overview Feaures 1 Channel device wih inegraed oupu sage (curren source), opimized o drive LEDs Oupu curren up o 360mA Low curren consumpion PWM-operaion suppored via VS-pin Oupu curren adjusable via exernal low power resisor and possibiliy o connec PTC resisor for LED proecion during over emperaure condiions Reverse polariy proecion Overload proecion Undervolage deecion Open load and shor circui o GND diagnosis Wide emperaure range: -40 C < T j < 150 C PG-SSOP14 package wih exposed heaslug Green Produc (RoHS complian) AEC Qualified PG-SSOP14 Descripion The Basic LED Driver is a one channel high side driver IC wih inegraed oupu sage. I is designed o conrol LEDs wih a curren up o 360 ma. In ypical auomoive applicaions he device is capable o drive i.e. 3 red LEDs wih a curren up o 180 ma, which is limied by hermal cooling aspecs. The oupu curren is conrolled pracically independen of load and supply volage changes. Table 1 Produc Summary Operaing volage V S(nom) 5.5 V 40 V Maximum volage 40 V V S(max) V OUT(max) Nominal oupu (load) curren I OUT(nom) 180 ma when using a supply volage range of 8V - 18V (e.g. Auomoive car baery). Currens up o I OUT(max) possible in applicaions wih low hermal resisance R hja Maximum oupu (load) curren I OUT(max) 360 ma; depending on hermal resisance R hja Oupu curren accuracy a R SET = 12 kω k LT 2250 ± 7% Type Package Marking PG-SSOP14 Daa Shee 3 Rev. 1.0,

4 Overview Proecive funcions - ESD proecion - Under volage lock ou - Over Load proecion - Over Temperaure proecion - Reverse Polariy proecion Diagnosic funcions - Diagnosis enable funcion - OL deecion - SC o Vs (indicaed by OL diagnosis) - SC o GND deecion Applicaions Designed for exerior LED lighing applicaions such as ail/brake ligh, urn indicaor, posiion ligh, side marker,... The device is also well suied for inerior LED lighing applicaions such as ambien lighing, inerior illuminaion and dash board lighing. Daa Shee 4 Rev. 1.0,

5 Block Diagram 2 Block Diagram DEN VS Inernal supply Diagnosis enable Oupu conrol Thermal proecion OUT IN_SET Curren adjus Saus ST GND Figure 1 Basic Block Diagram Daa Shee 5 Rev. 1.0,

6 Pin Configuraion 3 Pin Configuraion 3.1 Pin Assignmen VS 1 14 NC VS 2 13 NC DEN 3 12 OUT NC 4 EP 11 NC NC 5 10 ST IN_SET 6 9 GND NC 7 8 NC Figure 2 Pin Configuraion Daa Shee 6 Rev. 1.0,

7 Pin Configuraion 3.2 Pin Definiions and Funcions Pin Symbol Inpu/ Funcion Oupu 1, 2 VS Supply Volage; baery supply, connec a decoupling capacior (100 nf - 1 µf) o GND 3 DEN I Diagnosis enable pin 4 NC Pin no conneced 5 NC Pin no conneced 6 IN_SET I/O Inpu / SET pin; Connec a low power resisor o adjus he oupu curren 7 NC Pin no conneced 8 NC Pin no conneced 9 GND Ground 10 ST I/O Saus pin 11 NC Pin no conneced 12 OUT O Oupu 13 NC Pin no conneced 14 NC Pin no conneced Exposed Pad GND Exposed Pad; connec o GND in applicaion Connec all GND-pins ogeher. Daa Shee 7 Rev. 1.0,

8 General Produc Characerisics 4 General Produc Characerisics 4.1 Absolue Maximum Raings Absolue Maximum Raings T j = -40 C o +150 C; all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Max. Volages Supply volage V S V Diagnosis enable volage DEN V DEN V Diagn. enable volage DEN relaed o V S V DEN(VS) V S - 40 V S + 16 V Diagn. enable volage DEN relaed o V OUT V DEN - V OUT V DEN V V OUT Oupu volage V OUT V Power sage volage V PS V V PS = V S - V OUT IN_SET volage V IN_SET V Saus volage V ST V Currens IN_SET curren I IN_SET Oupu curren I OUT 390 ma Temperaures Juncion emperaure T j C Sorage emperaure T sg C ESD Suscepibiliy ESD resisiviy o GND V ESD -2 2 kv Human Body Model (100 pf via 1.5 kω) 2) ESD resisiviy all pins o GND V ESD V CDM 3) ESD resisiviy corner pins o GND V ESD V CDM 3) No subjec o producion es, specified by design 2) ESD suscepibiliy, Human Body Model HBM according o ANSI/ESDA/JEDEC JS ) ESD suscepibiliy, Charged Device Model CDM according o JESD22-C101E Noe: Sresses above he ones lised here may cause permanen damage o he device. Exposure o absolue maximum raing condiions for exended periods may affec device reliabiliy. Noe: Inegraed proecion funcions are designed o preven IC desrucion under faul condiions described in he daa shee. Faul condiions are considered as ouside normal operaing range. Proecion funcions are no designed for coninuous repeiive operaion. 2 8 ma Diagnosis oupu Daa Shee 8 Rev. 1.0,

9 General Produc Characerisics 4.2 Funcional Range Pos. Parameer Symbol Limi Values Uni Condiions Min. Max Supply volage range for V S(nom) V normal operaion Power on rese hreshold V S(POR) 5 V R SET =12kΩ I OUT = 80% I OUT(nom) V OUT =2.5V Juncion emperaure T j C Noe: Wihin he funcional range he IC operaes as described in he circui descripion. The elecrical characerisics are specified wihin he condiions given in he relaed elecrical characerisics able. 4.3 Thermal Resisance Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max Juncion o Case R hjc 8 10 K/W 2) Juncion o Ambien 1s0p board R hja Juncion o Ambien 2s2p board R hja2 No subjec o producion es, specified by design. Based on simulaion resuls. 2) Specified R hjc value is simulaed a naural convecion on a cold plae seup (all pins and he exposed Pad are fixed o ambien emperaure). T a = 85 C, Toal power dissipaion 1.5 W. 3) The R hja values are according o Jedec JESD51-3 a naural convecion on 1s0p FR4 board. The produc (chip + package) was simulaed on a 76.2 x x 1.5 mm 3 board wih 70µm Cu, 300 mm 2 cooling area. Toal power dissipaion 1.5 W disribued saically and homogenously over power sage. 4) The R hja values are according o Jedec JESD51-5,-7 a naural convecion on 2s2p FR4 board. The produc (chip + package) was simulaed on a 76.2 x x 1.5 mm 3 board wih 2 inner copper layers (ouside 2 x 70 µm Cu, inner 2 x 35µm Cu). Where applicable, a hermal via array under he exposed pad conaced he firs inner copper layer. Toal power dissipaion 1.5 W disribued saically and homogenously over power sage K/W K/W 3) T a =85 C T a = 135 C 4) T a =85 C T a = 135 C Daa Shee 9 Rev. 1.0,

10 DEN Pin 5 DEN Pin The DEN pin is a single funcion pin: DEN Oupu Conrol I DEN V DEN Figure 3 Block Diagram DEN pin This pin is used o acivae or deacivae he device inernal diagnosis funcions. The diagnosic funcions are described in Chaper 6.2, Chaper 7 and Chaper 8. The diagnosis is acivaed, if he volage applied a he DEN pin V DEN is higher han V DEN(ac). The diagnosis is disabled for volages below V DEN(dis). A possibiliy o use he DEN pin is via a Zener diode, which is conneced beween VS and DEN pin. A circui example is shown in he applicaion informaion secion Chaper 10. The diagnosis is acivaed, if he following condiion is fulfilled: V S V DEN( ac) + V ZD ( The curren consumpion on he DEN pin has o be considered for he oal device curren consumpion. The curren is specified in Pos The ypical curren consumpion I DEN(H) as a funcion of he supply volage V S for a Zener diode volage of V ZD = 6 V is shown in he following diagram. 160 Typical I DEN =f(v S ) wih (V S -V DEN )=6V I DEN [µa] Tj=-40 C Tj=25 C Tj=150 C V S [V] Figure 4 Typical I DEN(H) curren for a Zener diode volage of 6V The device and channel urn on is independen of he V DEN -volage. Afer applying a supply volage he device is acivaed afer he power on rese ime POR. Daa Shee 10 Rev. 1.0,

11 DEN Pin V S IOUT POR 100% 80% Figure 5 Power on rese The DEN volage V DEN does no influence he disable funcion via he ST pin. If V DEN < V DEN(dis) he device can sill be disabled via he ST pin, if V ST > V ST(H). For deails, please refer o Chaper Elecrical Characerisics Inernal Supply / DEN Pin Elecrical Characerisics Inernal Supply / DEN pin Unless oherwise specified: V S = 5.5 V o 40 V, T j = -40 C o +150 C, R SET =12kΩ all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max Curren consumpion, acive mode I S(on) 1.9 ma I IN_SET = 0µA T j < 105 C V S = 18 V V OUT = 3.6V Curren consumpion, device disabled via ST Curren consumpion, device disabled via IN_SET Curren consumpion, acive mode in faul deecion condiion wih STpin unconneced Curren consumpion, acive mode in faul deecion condiion wih STpin conneced o GND I S(dis,ST) 1.7 ma V S = 18 V T j < 105 C V ST = 5 V I S(dis,IN_SET) 1.7 ma V S = 18 V T j < 105 C V IN_SET = 5 V I S(faul,STu) 2.1 ma V S = 18 V T j < 105 C R SET = 12 kω V OUT = 18 V or 0 V I S(faul,STG) 6.2 ma V S = 18 V T j < 105 C R SET = 12 kω V OUT = 18 V or 0 V V ST = 0 V Daa Shee 11 Rev. 1.0,

12 DEN Pin Elecrical Characerisics Inernal Supply / DEN pin (con d) Unless oherwise specified: V S = 5.5 V o 40 V, T j = -40 C o +150 C, R SET =12kΩ all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max Power-on rese delay ime 2) POR 25 µs 3) V S = V V OUT(nom) = 3.6 ± 0.3V I OUT =80%I OUT(nom) Required supply volage for curren conrol V S(CC) 5.5 V V OUT = 3.6 V I OUT 90% I OUT(nom) DEN high inpu curren I DEN(H) ma T j < 105 C V S = 13.5 V, V DEN = 5.5 V V S = 18 V, V DEN = 5.5 V V S = 18 V, V DEN = 12 V V S = V DEN = 18 V DEN acivaion hreshold V DEN(ac) V V S = V (diagnosis enabled above V DEN(ac) ) DEN deacivaion hreshold (diagnosis disabled below V DEN(dis) ) V DEN(dis) V V S = V The oal device curren consumpion is he sum of he currens I S and I DEN(H), please refer o Pos ) See also Figure 4 3) No subjec o producion es, specified by design Daa Shee 12 Rev. 1.0,

13 IN_SET Pin 6 IN_SET Pin The IN_SET pin is a muliple funcion pin for oupu curren definiion, inpu and diagnosics: Logic IN_SET high impedance I IN_SET V IN_SET V IN_SET(OL/SC) GND Figure 6 Block Diagram IN_SET pin 6.1 Oupu Curren Adjusmen via RSET The curren adjusmen can be done by placing a low power resisor (R SET ) a he IN_SET pin o ground. The dimensioning of he resisor can be done using he formula below: R SET k = I OUT (2) The gain facor k (R SET * oupu curren) is specified in Pos and Pos The curren hrough he R SET is defined by he resisor iself and he reference volage V IN_SET(ref), which is applied o he IN_SET during supplied device. 6.2 Smar Inpu Pin The IN_SET pin can be conneced via R SET o he open-drain oupu of a µc or o an exernal NMOS ransisor as described in Figure 7 This signal can be used o urn off he oupu sage of he IC. A minimum IN_SET curren of I IN_SET(ac) is required o urn on he oupu sage. This feaure is implemened o preven glimming of LEDs caused by leakage currens on he IN_SET pin, see Figure 10 for deails. In addiion, he IN_SET pin offers he diagnosic feedback informaion, if he saus pin is conneced o GND and V DEN > V DEN(ac) (refer o Chaper 5). Anoher diagnosic possibiliy is shown in Figure 8, where he diagnosis informaion is provided via he ST pin (refer o Chaper 7 and Chaper 8) o a micro conroller In case of a faul even wih he ST pin conneced o GND he IN_SET volage is increased o V IN_SET(OL/SC) Pos Therefore, he device has wo volage domains a he IN_SET-pin, which is shown in Figure 11. Daa Shee 13 Rev. 1.0,

14 IN_SET Pin Microconroller (e.g. XC866) OUT R SET /2 R SET /2 IN_SET Curren adjus Saus Basic LED Driver ST GND V DDP = 5 V IN Figure 7 Schemaics IN_SET inerface o µc, diagnosis via IN_SET pin Microconroller (e.g. XC866) OUT R SET IN_SET Curren adjus Saus Basic LED Driver ST GND V DDP = 5 V IN opional Figure 8 Schemaics IN_SET inerface o µc, diagnosis via ST pin The resuling swiching imes are shown in Figure 9: I IN_SET IOUT ON(IN_SET ) OFF(IN_SET) 100% 80% 20% Figure 9 Swiching imes via IN_SET Daa Shee 14 Rev. 1.0,

15 IN_SET Pin I OUT [ma] k = I OUTx * V IN_SET(ref) / I IN_SETx I OUTx I IN_SET(ACT) I IN_SETx I IN_SET [µa] Figure 10 I OUT versus I INSET V IN_SET V IN _SET(OL/SC)max Diagnosic volage range V IN_SET(OL/SC)min V IN _SET (ref ) m ax Normal operaion and high emperaure curren reducion range Figure 11 Volage domains for IN_SET pin, if ST pin is conneced o GND Daa Shee 15 Rev. 1.0,

16 ST Pin 7 ST Pin The ST pin is a muliple funcion pin. I ST(OL/SC) ST No faul Faul V ST(OL/SC) Oupu Conrol No faul Faul V ST I ST(PD) Figure 12 Block Diagram ST pin 7.1 Diagnosis Selecor If he volage a he DEN pin V DEN is higher han V DEN(ac), he diagnosis is acivaed. For deails, please refer o Chaper 5. If he saus pin is unconneced or conneced o GND via a high ohmic resisor (V ST o be below V ST(L) ), he ST pin acs as diagnosis oupu pin. In normal operaion (device is acivaed) he ST pin is pulled o GND via he inernal pull down curren I ST(PD). In case of an open load or shor circui o GND condiion he ST pin is swiched o V ST(OL/SC) afer he open load or shor circui deecion filer ime (Pos , Pos ). If he device is operaed in PWM operaion via he VS pin he ST pin should be conneced o GND via a high ohmic resisor (e.g. 470kΩ) o ensure proper device behavior during fas rising VS slope. If he ST pin is shored o GND he diagnosic feedback is performed via he IN_SET-pin, which is shown in Chaper 6.2 and Chaper Diagnosis Oupu If he saus pin is unconneced or conneced o GND via a high ohmic resisor (V ST o be below V ST(L) ), i acs as a diagnosic oupu, if he volage a he DEN pin is above V DEN(ac). In case of a faul condiion he ST pin rises is volage o V ST(OL/SC) (Pos ). Deails are shown in Chaper Disable Inpu If an exernal volage higher han V ST(H) (Pos ) is applied o he ST pin, he device is swiched off. This funcion is working independenly of he volage a he DEN pin. Even if he diagnosis is disabled via V DEN < V DEN(dis) he disable funcion of he ST pin is working. This funcion is used for applicaions, where muliple drivers should be used for one ligh funcion. I is possible o combine he drivers faul diagnosis via he ST pins. If a single LED chain fails, he enire ligh funcion is swiched off. In his scenario e.g. he diagnosic circui on he body conrol module can easily disinguish beween he wo cases (normal load or load faul), because nearly no curren is flowing ino he LED module during he faul scenario - he drivers consume a curren of I S(faul,STu) (Pos ) or I S(dis,ST) (Pos ). Daa Shee 16 Rev. 1.0,

17 ST Pin As soon as one LED chain fails, he ST-pin of his device is swiched o V ST(OL/SC). The oher devices used for he same ligh funcion can be conneced ogeher via he ST pins. This leads o a swich off of all devices conneced ogeher. Applicaion examples are shown in Chaper 10. V ST IOUT ON(ST) OFF(ST) 100% 80% 20% Figure 13 Swiching imes via ST Pin Daa Shee 17 Rev. 1.0,

18 Load Diagnosis 8 Load Diagnosis The diagnosis funcion is enabled, if he volage a he DEN pin V DEN is above V DEN(ac) as described in Chaper Open Load An open load diagnosis feaure is inegraed in he driver IC. If here is an open load on he oupu, he oupu is urned off. The poenial on he IN_SET pin rises up o V IN_SET(OL/SC). This high volage can be used as inpu signal for an µc as shown in Figure 8. The open load saus is no lached, as soon as he open load condiion is no longer presen, he oupu sage will be urned on again. An open load condiion is deeced, if he volage drop over he oupu sage V PS is below he hreshold according Pos and a filer ime of OL is passed. V IN_SET V IN _SET(OL/SC) V IN_SET(ref ) V OUT OL IN_SET (rese) V S VS VPS(OL) V F open load occurs open load disappears Figure 14 IN_SET behavior during open load condiion wih ST pin conneced o GND and V DEN > V DEN(ac) Daa Shee 18 Rev. 1.0,

19 Load Diagnosis V IN_SET V IN _SET(ref ) V ST VST(OL/SC) V OUT OL IN_SET(rese) V S VS VPS(OL) V F open load occurs open load disappears Figure 15 IN_SET and ST behavior during open load condiion (ST unconneced) and V DEN > V DEN(ac) 8.2 Shor Circui o GND deecion The has an inegraed SC o GND deecion. If he oupu sage is urned on and he volage a he oupu falls below V OUT(SC) he poenial on he IN_SET pin is increased up o V IN_SET(OL/SC) afer SC, if he ST pin is conneced o GND. If he ST is open or conneced o GND via a high ohmic resisor he faul is indicaed on he ST pin according o Chaper 7 afer SC. More deails are shown in Figure 17. This condiion is no lached. For deecing a normal condiion afer a shor circui deecion an oupu curren according o I OUT(SC) is driven by he channel. Daa Shee 19 Rev. 1.0,

20 Load Diagnosis V IN_SET VIN _SET(OL/SC) V IN _SET(ref ) V OUT SC IN_SET( rese) VF VOUT (SC) shor circui occurs shor circui disappears Figure 16 IN_SET behavior during shor circui o GND condiion wih ST conneced o GND and V DEN > V DEN(ac) V IN_SET V IN_SET(ref ) V ST VST(OL/SC) V OUT SC IN_SET (rese) V F VOUT (SC) shor circui occurs shor circui disappears Figure 17 IN_SET and ST behavior during shor circui o GND condiion (ST unconneced) and V DEN > V DEN(ac) Daa Shee 20 Rev. 1.0,

21 Load Diagnosis 8.3 Elecrical Characerisics IN_SET Pin and Load Diagnosis Elecrical Characerisics IN_SET pin and Load Diagnosis Unless oherwise specified: V S = 5.5 V o 40 V, T j = -40 C o +150 C, R SET = 12 kω, V DEN = 5.5 V, all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max IN_SET reference volage IN_SET open load/shor circui volage IN_SET open load/shor circui curren ST device urn on hreshold (acive low) in case of volage applied from exernal (ST-pin acing as inpu) ST device urn off hreshold (acive low) in case of volage applied from exernal (ST-pin acing as inpu) V IN_SET(ref) V V OUT =3.6V T j = C V IN_SET(OL/SC) V V S > 8 V T j = C V S = V OUT (OL) or V OUTx = 0 V (SC) I IN_SET(OL/SC) ma V S > 8 V T j = C V IN_SET = 4 V V S = V OUT (OL) or V OUT = 0V (SC) V ST(L) 0.8 V V ST(H) 2.5 V ST pull down curren I ST(PD) 15 µa V ST =0.8V ST open load/shor circui volage (ST-pin acing as diagnosis oupu) ST open load/shor circui curren (ST-pin acing as diagnosis oupu) V ST(OL/SC) V V S > 8 V T j = C R ST = 470 kω V S = V OUT (OL) or V OUT = 0V (SC) I ST(OL/SC) µa V S > 8 V T j = C V ST = 2.5 V V S = V OUT (OL) or V OUT = 0V (SC) OL deecion filer ime OL µs V S >8V OL deecion volage V PS(OL) V V S >8V V PS(OL) = V S - V OUT Shor circui o GND V OUT(SC) V V S >8V deecion hreshold SC deecion filer ime SC µs V S > 8 V IN_SET diagnosis rese ime IN_SET(rese) 5 20 µs V S > 8 V Daa Shee 21 Rev. 1.0,

22 Load Diagnosis Elecrical Characerisics IN_SET pin and Load Diagnosis (con d) Unless oherwise specified: V S = 5.5 V o 40 V, T j = -40 C o +150 C, R SET = 12 kω, V DEN = 5.5 V, all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max SC deecion curren in case of unconneced STpin I OUT(SC,STu) µa V S > 8 V V OUT = 0 V SC deecion curren in case of ST-pin shored o GND IN_SET acivaion curren wihou urn on of oupu sage No subjec o producion es, specified by design I OUT(SC,STG) ma V S > 8 V V OUT = 0 V V ST = 0 V I IN_SET(ac) 2 15 µa See Figure 10 Daa Shee 22 Rev. 1.0,

23 Power Sage 9 Power Sage The oupu sage is realized as high side curren source wih a curren of 360 ma. During off sae he leakage curren a he oupu sage is minimized in order o preven a slighly glowing LED. The maximum curren of he channel is limied by he power dissipaion and used PCB cooling areas (which resuls in he applicaions R hja ). For an operaing curren conrol loop he supply and oupu volages according o he following parameers have o be considered: Required supply volage for curren conrol V S(CC), Pos Volage drop over oupu sage during curren conrol V PS(CC), Pos Required oupu volage for curren conrol V OUT(CC), Pos Proecion The device provides embedded proecive funcions, which are designed o preven IC desrucion under faul condiions described in his daa shee. Faul condiions are considered as ouside normal operaing range. Proecive funcions are neiher designed for coninuous nor for repeiive operaion Over Load Behavior An over load deecion circui is inegraed in he Basic LED Driver IC. I is realized by a emperaure monioring of he oupu sage (OUT). As soon as he juncion emperaure exceeds he curren reducion emperaure hreshold T j(crt) he oupu curren will be reduced by he device by reducing he IN_SET reference volage V IN_SET(ref). This feaure avoids LED s flickering during saic oupu overload condiions. Furhermore, i proecs LEDs agains over emperaure, which are mouned hermally close o he device. If he device emperaure sill increases, he oupu curren decreases close o 0 A. As soon as he device cools down he oupu curren rises again. I OUT V IN_SET T j(crt) T j Figure 18 Oupu curren reducion a high emperaure Noe: This high emperaure oupu curren reducion is realized by reducing he IN_SET reference volage volage (Pos In case of very high power loss applied o he device and very high juncion emperaure he oupu curren may drop down o I OUT = 0 ma, afer a sligh cooling down he curren increases again Reverse Baery Proecion The has an inegraed reverse baery proecion feaure. This feaure proecs he driver IC iself, bu also conneced LEDs. The oupu reverse curren is limied o I OUTx(rev) by he reverse baery proecion. Daa Shee 23 Rev. 1.0,

24 Power Sage Noe: Due o he reverse baery proecion a reverse proecion diode for he ligh module may be obsolee. In case of high ISO-pulse requiremens and only minor proecing componens like capaciors a reverse proecion diode may be reasonable. The exernal proecion circui needs o be verified in he applicaion. 9.2 Elecrical Characerisics Power Sage Elecrical Characerisics Power Sage Unless oherwise specified: V S = 5.5 V o 18 V, T j = -40 C o +150 C, V OUT = 3.6 V, all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max Oupu leakage curren I OUT(leak) µa I IN_SET = 0 µa V OUT =2.5V T j = 150 C T j = 85 C Oupu leakage curren in boos over baery seup I OUT(leak,B2B) 150 µa I IN_SET =0µA V OUT = V S = 40 V V S = -16 V Oupu load: LED wih break down volage <-0.6V Reverse oupu curren -I OUT(rev) 3 µa Oupu curren accuracy limied emperaure range Oupu curren accuracy over emperaure Volage drop over power sage during curren conrol V PS(CC) = V S - V OUT Required oupu volage for curren conrol k LT k ALL T j = C V S = V V PS = 2 V R SET = 12 kω R SET = 30 kω T j = C V S = V V PS = 2 V R SET = kω R SET = 30 kω V PS(CC) 0.75 V V S = 13.5 V R SET = 12 kω I OUT 90% of (k LT(yp) /R SET ) V OUT(CC) 2.3 V V S = 13.5 V R SET = 12 kω I OUT 90% of (k LT(yp) /R SET ) Maximum oupu curren I OUT(max) 360 ma R SET = 4.7 kω The maximum oupu curren is limied by he hermal condiions. Please refer o Pos Pos Daa Shee 24 Rev. 1.0,

25 Power Sage Elecrical Characerisics Power Sage (con d) Unless oherwise specified: V S = 5.5 V o 18 V, T j = -40 C o +150 C, V OUT = 3.6 V, all volages wih respec o ground, posiive curren flowing ino pin for inpu pins (I), posiive currens flowing ou of he I/O and oupu pins (O) (unless oherwise specified) Pos. Parameer Symbol Limi Values Uni Condiions Min. Typ. Max ST urn on ime ON(ST) 15 µs 2) V S = 13.5 V R SET = 12 kω ST L I OUT = 80% of (k LT(yp) /R SET ) ST urn off ime OFF(ST) 10 µs 2) V S = 13.5 V R SET = 12 kω ST H I OUT = 20% of (k LT(yp) /R SET ) IN_SET urn on ime ON(IN_SET) 15 µs V S = 13.5 V I IN_SET = µa I OUT = 80% of (k LT(yp) /R SET ) IN_SET urn off ime OFF(IN_SET) 10 µs V S = 13.5 V I IN_SET =100 0µA I OUT = 20% of (k LT(yp) /R SET ) Curren reducion emperaure hreshold Oupu curren during curren reducion a high emperaure T j(crt) 140 C I OUT(CRT) No subjec o producion es, specified by design 2) see also Figure 13 85% of (k LT(yp) / R SET ) A I OUT = 95% of (k LT(yp) /R SET ) R SET =12kΩ T j = 150 C Daa Shee 25 Rev. 1.0,

26 Applicaion Informaion 10 Applicaion Informaion Noe: The following informaion is given as a hin for he implemenaion of he device only and shall no be regarded as a descripion or warrany of a cerain funcionaliy, condiion or qualiy of he device. Ligh module V BATT C mod=2.2µf CVS=4.7nF VS ISO-Pulse proecion circui depending on requiremens DEN Inernal supply Diagnosis enable Oupu conrol 4.7nF** Microconroller (e.g. XC866) Thermal proecion OUT OUT R SET IN_SET Curren adjus Saus Basic LED Driver ST GND IN 470kΩ* C ST =100pF** Evenually o oher Basic LED Driver * In case PWM via VS is performed. ** For EMI improvemen, if required. Figure 19 Applicaion Diagram Noe: This is a very simplified example of an applicaion circui. In case of high ISO-pulse requiremens a reverse proecion diode may be used for LED proecion. The funcion mus be verified in he real applicaion Furher Applicaion Informaion For furher informaion you may conac hp:// Daa Shee 26 Rev. 1.0,

27 Package Oulines 11 Package Oulines Sand Off (1.45) 1.7 MAX. C 0.08 C 0.35 x ± C D ± MAX ±0.05 2) 0.15 M C A-B D 14x D 6 ± M D 8x Boom View A B 0.1 C A-B 2x 4.9 ±0.1 Exposed Diepad 3 ± ±0.2 Index Marking Does no include plasic or meal prorusion of 0.15 max. per side 2) Does no include dambar prorusion Dimensions in mm PG-SSOP-14-1,-2,-3-PO V02 Figure 20 PG-SSOP14 Green Produc (RoHS complian) To mee he world-wide cusomer requiremens for environmenally friendly producs and o be complian wih governmen regulaions he device is available as a green produc. Green producs are RoHS-Complian (i.e Pb-free finish on leads and suiable for Pb-free soldering according o IPC/JEDEC J-STD-020). For furher informaion on alernaive packages, please visi our websie: hp:// Daa Shee 27 Rev. 1.0,

28 Revision Hisory 12 Revision Hisory Revision Dae Changes Inial revision of daa shee Daa Shee 28 Rev. 1.0,

29 Ediion Published by Infineon Technologies AG Munich, Germany 2013 Infineon Technologies AG All Righs Reserved. Legal Disclaimer The informaion given in his documen shall in no even be regarded as a guaranee of condiions or characerisics. Wih respec o any examples or hins given herein, any ypical values saed herein and/or any informaion regarding he applicaion of he device, Infineon Technologies hereby disclaims any and all warranies and liabiliies of any kind, including wihou limiaion, warranies of non-infringemen of inellecual propery righs of any hird pary. Informaion For furher informaion on echnology, delivery erms and condiions and prices, please conac he neares Infineon Technologies Office ( Warnings Due o echnical requiremens, componens may conain dangerous subsances. For informaion on he ypes in quesion, please conac he neares Infineon Technologies Office. Infineon Technologies componens may be used in life-suppor devices or sysems only wih he express wrien approval of Infineon Technologies, if a failure of such componens can reasonably be expeced o cause he failure of ha life-suppor device or sysem or o affec he safey or effeciveness of ha device or sysem. Life suppor devices or sysems are inended o be implaned in he human body or o suppor and/or mainain and susain and/or proec human life. If hey fail, i is reasonable o assume ha he healh of he user or oher persons may be endangered.