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automotive power datasheet rev. 1.1, 2009-12-16 TLD5095EL dc/dc boost, buck-boost, sepic controller infineon ? power led driver www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 2 rev. 1.1, 2009-12-16 TLD5095EL table of contents 1 overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 general product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2 functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.3 thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 boost regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 oscillator and synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 enable and dimming function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7.2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9 protection and diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 9.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 9.2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 10 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 10.1 further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 11 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 12 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 table of contents www.datasheet.net/ datasheet pdf - http://www..co.kr/
pg-ssop-14 (e-pad) type package marking TLD5095EL pg-ssop-14 (e-pad) tld5095 datasheet 3 rev. 1.1, 2009-12-16 dc/dc boost, buck-boos t, sepic controller TLD5095EL TLD5095EL 1overview features ? wide input voltage range from 4.75 v to 45 v ? constant current or constant voltage regulation ? drives leds in boost (b2g), buck-boost (b2b) and sepic topology ? very low shutdown current: iq< 10 a ? flexible switching frequency range, 100 khz to 500 khz ? synchronization with external clock source ? output open circuit diagnostic output ?pwm dimming ? internal soft start ? 300mv high side current sens e to ensure highest flexib ility and led current accuracy ? internal 5 v low drop out voltage regulator ? wide led current range via simple adaptation of external components ? available in a small thermally enhanced pg-ssop-14 (e-pad) package ? output overvoltage protection ? over temperature shutdown ? automotive aec qualified ? green product (rohs) compliant description the TLD5095EL is a smart led boost controller with built in protection and diagnostic features. the main function of this device is to regulate a constant led current. the cons tant current regulation is especially beneficial for led color accuracy and longer lifetime. the controller concept of the TLD5095EL allows a multi-purpose usage such as boost, buck-boost and sepic configuration with various load current levels by simply adjusting the external components. the TLD5095EL has a pwm output for dimming a led load. the diagnostics are communicated on a status output (pin st) to indicate a fault condition such as an led open circuit. the switching frequency is adj ustable in the range of 100 khz to 500 khz and can be synchronized to an external clock source. the TLD5095EL features an enable function reducing the shut-down current consumption to <10 a. the current mode regulation sc heme of this device provides a stable regulation loop maintained by small external compensation components. the integrated soft-start feature limits the current peak as well as voltage overshoot at start-up. this ic is suited for use in the harsh automotive environments and provides protection functions such as output overvoltage protection and overtemperature shutdown. applications ? automotive exterior lighting (brake light, tail li ght, fog light, chmsl, daytime running light, position light, turn indicators) ? automotive interior lighting (reading li ght, dome light, display backlighting) www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 4 rev. 1.1, 2009-12-16 TLD5095EL block diagram 2 block diagram figure 1 block diagram en / pwmi comp in fbl fbh freq/ sync gnd st oscillator 14 13 10 8 11 12 3 9 6 7 swcs 4 swo 2 ivcc 1 diagnostics logic ldo ovfb sgnd soft start slope comp. internal supply on/off logic leading edge blanking 5 pwmo en_int/ pwm_int thermal protection open load detection over volage protection pwm generator power switch gate driver feedback voltage error amplifier dimming switch gate driver power on reset en_int/ pwm_int blockd iagram .vsd switch current error amplifier www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL pin configuration datasheet 5 rev. 1.1, 2009-12-16 3 pin configuration 3.1 pin assignment figure 2 pin configuration 3.2 pin definitions and functions pin symbol function 1ivcc internal ldo output; used for internal biasing and gate drive. bypass with external capacitor. pin must not left open. 2swo switch output; connect to gate of external boost converter switching mosfet 3sgnd current sense ground; ground return for current sense switch 4swcs current sense input; detects the peak current through switch 5pwmo pwm dimming output; connect to gate of external mosfet 6fbh voltage feedback positive; non inverting input (+) 7fbl voltage feedback negative; inverting input (-) 8comp compensation input; connect r and c networ k to pin for stability ,1 &203 29)% 6(7 )5(46<1& *1' (13:0, ,9&& )%/ 3:02 6*1' 6:&6 6:2 3,1&21),*b662369* )%+ (3 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 6 rev. 1.1, 2009-12-16 TLD5095EL pin configuration 9ovfb output overvoltage protection feedback; connect to resistive voltage divi der to set overvoltage threshold. 10 st status output; open drain diagnostic output to indicate fault condition. connect pull up resistor to pin. 11 freq / sync frequency select or synchronization input; connect external resistor to gnd to set frequency. or apply external clock signal for synchronization within frequency capture range. 12 gnd ground; connect to system ground. 13 en / pwmi enable or pwm input; apply logic high signal to enable device or pwm signal for dimming led. 14 in supply input; supply for internal biasing. ep exposed pad; connect to external heatspreading cu ar ea with electrically gnd (e.g. inner gnd layer of multilayer pc b with thermal vias) pin symbol function www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL general product characteristics datasheet 7 rev. 1.1, 2009-12-16 4 general product characteristics 4.1 absolute maximum ratings absolute maximum ratings 1) t j = -40 c to +150 c; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. max. voltages 4.1.1 in supply input v in -0.3 45 v 4.1.2 en / pwmi enable or pwm input v en -40 45 v 4.1.3 fbh-fbl; feedback error amp lifier differential v fbh -v fbl -5.5 5.5 v 4.1.4 fbh; feedback error amplifier positive input v fbh -0.3 45 v 4.1.5 fbl feedback error amplifier negative input v fbl -0.3 45 v 4.1.6 ovfb over voltage feedback input v ovp -0.3 5.5 v 4.1.7 -0.3 6.2 v t < 10s 4.1.8 swcs switch current sense input v swcs -0.3 5.5 v 4.1.9 -0.3 6.2 v t < 10s 4.1.10 swo switch gate drive output v swo -0.3 5.5 v 4.1.11 -0.3 6.2 v t < 10s 4.1.12 sgnd current sense switch gnd v sgnd -0.3 0.3 v 4.1.13 comp compensation input v comp -0.3 5.5 v 4.1.14 -0.3 6.2 v t < 10s 4.1.15 freq / sync; frequency and synchronization input v freq / sync -0.3 5.5 v 4.1.16 -0.3 6.2 v t < 10s 4.1.17 pwmo pwm dimming output v pwmo -0.3 5.5 v 4.1.18 -0.3 6.2 v t < 10s 4.1.19 st v st -0.3 45 v 4.1.20 diagnostic status output i st -5 5 ma 4.1.21 ivcc internal linear voltage regulator output v ivcc -0.3 5.5 v 4.1.22 -0.3 6.2 v t < 10s temperatures 4.1.23 junction temperature t j -40 150 c? 4.1.24 storage temperature t stg -55 150 c? esd susceptibility 4.1.25 esd resistivity to gnd v esd,hbm -2 2 kv hbm 2) www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 8 rev. 1.1, 2009-12-16 TLD5095EL general product characteristics note: stresses above the ones listed here may cause perm anent damage to the device. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note: integrated protection functions are designed to prevent ic destruction under fault conditions described in the data sheet. fault conditions are considered as ?outside? normal operating range. protection functions are not designed for continuous repetitive operation. 4.2 functional range note: within the functional range the ic operates as de scribed in the circuit description. the electrical characteristics are specifi ed within the conditions given in the re lated electrical ch aracteristics table. 4.3 thermal resistance note: this thermal data was generated in accordance wit h jedec jesd51 standards. fo r more information, go to www.jedec.org . 4.1.26 esd resistivity to gnd v esd,cdm -500 500 v cdm 3) 4.1.27 esd resistivity pin 1, 7, 8, 14 (corner pins) to gnd v esd,cdm,c -750 750 v cdm 3) 1) not subject to production test, specified by design. 2) esd susceptibility, human body model ?hbm? according to eia/jesd 22-a114b 3) esd susceptibility, charged device model ?cdm? eia/jesd22-c101 or esda stm5.3.1 pos. parameter symbol limit values unit conditions min. max. 4.2.1 supply voltage input v in 4.75 45 v v ivcc > v ivcc,rth,d 4.2.2 feedback voltage input v fbh; v fbl 4.5 45 v ? 4.2.3 junction temperature t j -40 150 c? pos. parameter symbol limit values unit conditions min. typ. max. 4.3.1 junction to case 1) 2) 1) not subject to production test, specified by design. 2) specified r thjc value is simulated at natural convection on a cold pl ate setup (all pins and exposed pad are fixed to ambient temperature). ta=25c, ic is dissipating 1w. r thjc ??10k/w 4.3.2 junction to ambient 1) 3) 3) specified r thja value is according to jedec 2s2p (jesd 51-7) + (jesd 51-5) and jedec 1s0p (jesd 51-3) + heatsink area at natural convection on fr4 boar d; the device was simulated on a 76.2 x 11 4.3 x 1.5mm board. the 2s2p board has 2 outer copper layers (2 x 70m cu) and 2 inner copper layers (2 x 35m cu), a thermal via (diameter = 0.3mm and 25m plating) array was applied under the exposed pad and connected the first outer layer (t op) to the first inner layer and second outer layer (bottom) of the jedec pcb. ta=25c, ic is dissipating 1w. r thja ?47?k/w2s2p 4.3.3 r thja ? 54 ? k/w 1s0p + 600 mm 2 4.3.4 r thja ? 64 ? k/w 1s0p + 300 mm 2 absolute maximum ratings 1) t j = -40 c to +150 c; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. max. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL boost regulator datasheet 9 rev. 1.1, 2009-12-16 5 boost regulator 5.1 description the tld5095 regulator is su itable for boost, buck-boost and sepic configurations. th e constant ou tput current is especially useful for li ght emitting diode (led) applic ations. the boost regulator function is implemented by a pulse width modulated (pwm) current mode controller. the pwm current mode controller uses the peak current thro ugh the external power switch and error in the output current to determine the appropriate pulse width duty cycl e (on time) for constant output current. the current mode controller it provides a pwm signal to an internal gate driver which then outputs the same pwm signal to external n-channel enhancement mode metal oxide fiel d effect transistor (mosfet) power switch. the current mode controller also has built-in slope compensation to prevent sub-harmonic oscillations which is a characteristic of current mode controllers operating at high duty cycles (>50% duty). an additional built-in feature is an in tegrated soft start that limits the cu rrent through the inductor and external power switch during initialization. th e soft start function gradually increase s the inductor and switch current over 1 ms (typical) to minimize poten tial overvoltage at the output. figure 3 boost regulator block diagram oscillator freq/ sync & & r q s off when h q clock > 1 error -ff low when t j > 175 c ea fbh comp h when ovfb >1.25v output stage off when low nor & nand 2 & & r q s q pwm-ff 1 inv gate driver gate driver supply swo ivcc current sense i soft start v ref 0.3 v = slope comp t fbl x1 gmea v ref 1.25v = sgnd swcs current comp ovfb i sl ope i ea i cs high when l ea -i slope -i cs >0 v ref 4.0v = high when ivcc < 4.0v uv ivcc ov fb tld5095 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 10 rev. 1.1, 2009-12-16 TLD5095EL boost regulator 5.2 electrical characteristics 1) v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. boost regulator: 5.2.1 feedback reference voltage v ref 0.28 0.30 0.32 v v in = 19 v; v ref = v fbh -v fbl 5.2.2 voltage line regulation ? v ref / ? v in ? ? 0.15 %/v v in = 6 to 19 v; v bo = 30 v; i bo = 500 ma figure 21 5.2.3 voltage load regulation ? v ref / ? i bo ??5%/a v in = 6 v; v bo = 30v; i bo = 100 to 500 ma figure 21 5.2.4 switch peak over current threshold v swcs 130 150 170 mv v in = 6 v v fbh = v fbl = 5 v v comp = 3.5v 5.2.5 maximum duty cycle d max,fixed 90 93 95 % fixed frequency mode 5.2.6 maximum duty cycle d max,sync 88 ? ? % synchronization mode 5.2.7 soft start ramp t ss 350 1000 1500 s v fb rising from 5% to 95% of v fb , typ. 5.2.8 feedback input current i fbx -10 -50 -100 a v fbh - v fbl = 0.3 v 5.2.9 switch current sense input current i swcs 10 50 100 a v swcs = 150 mv 5.2.10 input undervoltage shutdown v in,off 3.75 ? ? v v in decreasing 5.2.11 input voltage startup v in,on ??4.75v v in increasing gate driver for boost switch 5.2.12 gate driver peak sourcing current 1) i swo,src ?380?ma v swo = 3.5v 5.2.13 gate driver peak sinking current 1) i swo,snk ?550?ma v swo = 1.5v 5.2.14 gate driver output rise time t r,swo ? 3060ns c l,swo = 3.3nf; v swo = 1v to 4v 5.2.15 gate driver output fall time t f,swo ? 2040ns c l,swo = 3.3nf; v swo = 1v to 4v 5.2.16 gate driver output voltage 1) v swo 4.5 ? 5.5 v c l,swo = 3.3nf; 1) not subject to production test, specified by design www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL oscillator and synchronization datasheet 11 rev. 1.1, 2009-12-16 6 oscillator and synchronization 6.1 description r_osc vs. switching frequency the internal oscillator is used to dete rmine the switching frequency of the b oost regulator. the switching frequency can be selected from 100 khz to 500 khz with an external resistor to gnd. to set the switching frequency with an external resistor the following formula can be applied. in addition, the oscillator is capable of changing from the frequency set by th e external resistor to a synchronized frequency from an external clock source. if an external cl ock source is provided on the pin freq/sync, then the internal oscillator syn chronizes to this external clock frequency and the boost regulator switches at the synchronized frequency. the synchronization frequency capture range is 250 khz to 500 khz. figure 4 oscillator and synchronization block diagram and simplified application circuit figure 5 synchronization timing diagram tld5095 oscillator clock frequency detector freq / sync multiplexer pwm logic gate driver swo r freq v clk oscillator_ blkd iag_ syncfixedm ode .vsd 9 6<1& w w 6<1&75 w 6<1&75 9 6<1&+ 9 6<1&/ 7 6<1& i 6<1& w 6<1&3:+ 9 9 2vfloodwrub7lplqjvyj [] () [] () [] ( ) [] ? ? ? = ? ? 3 1 12 10 5 . 3 10 141 1 s freq s f r freq www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 12 rev. 1.1, 2009-12-16 TLD5095EL oscillator and synchronization 6.2 electrical characteristics v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. oscillator: 6.2.1 oscillator frequency f freq 250 300 350 khz r freq = 20k ? 6.2.2 oscillator frequency adjustment range f freq 100 ? 500 khz 17% internal tolerance + external resistor tolerance 6.2.3 freq / sync supply current i freq ??-700a v freq = 0 v 6.2.4 frequency voltage v freq 1.16 1.24 1.32 v f freq = 100 khz synchronization 6.2.5 synchronization frequency capture range f sync 250 ? 500 khz ? 6.2.6 synchronization signal high logic level valid v sync,h 3.0??v 1) 1) synchronization of external pwm on signal to falling edge 6.2.7 synchronization signal low logic level valid v sync,l ??0.8v 1) 6.2.8 synchronization signal logic high pulse width t sync,pwh 200 ? ? ns 1) www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL oscillator and synchronization datasheet 13 rev. 1.1, 2009-12-16 typical performance characteristics of oscillator switching frequency f sw versus frequency select resistor to gnd r freq/sync 0 100 200 300 400 500 600 0 1020304050607080 r freq/sync [kohm] f freq [khz] t j = 25 c www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 14 rev. 1.1, 2009-12-16 TLD5095EL enable and dimming function 7 enable and dimming function 7.1 description the enable function powers on or off the device. a valid logic low signal on enable pin en/pwmi powers off the device and current consumption is less than 10 a. a valid logic high enable signal on enable pin en/pwmi powers on the device. the enable function features an integrated pull down re sistor which ensures that the ic is shut down and the power switch is off in case the enable pin en is left open. in addition to the enable function described above, th e en/pwmi pin detects a pulse width modulated (pwm) input signal that is fed through to an internal gate driver. t he internal gate driver outputs the same pwm signal on the pwmo pin to an external n-channel enhancement mode mosfet for pwm dimming an led load. pwm dimming an led is a commonly practiced dimming method to preven t color shift in an led light source. moreover the pwm output function may also be used for to drive other types of loads besides led. the enable and pwm input function share the same pin. therefore a valid logic low signal at the en/pwmi pin needs to differentiate between an enable power off signal or an pwm low signal. the device differentiates between an enable off command and pwm dimming signal by requir ing the signal at the en/pwmi pin to stay low for a minimum of 8 ms. figure 6 block diagram and simplified application circuit enable and led dimming (13:0, ,1 6:2 ,9&& /'2 (qdeoh3:0, /rjlf 3:02 (1b3:0,b%orfn'ldjudpvyj *dwh 'ulyhu 0lfurfrqwuroohu *dwh 'ulyhu (qdeoh (qdeoh 3:0, www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL enable and dimming function datasheet 15 rev. 1.1, 2009-12-16 figure 7 timing diagram enable and led dimming 7.2 electrical characteristics v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. enable/pwm input: 7.2.1 enable/pwmi turn on threshold v en/pwmi,on 3.0 ? v ? 7.2.2 enable/pwmi turn off threshold v en/pwmi,off ??0.8v? 7.2.3 enable/pwmi hysteresis v en/pwmi,hys 50 200 400 mv ? 9 (13:0, 9 (13:0,21 9 ,9&& 9 ,9&&21 9 3:02 9 6:2 9 (13:0,2)) w (12))'(/ w w w w 9 ,9&&57+ 3rzhu2ii ,t ? $ 3rzhu2ii'hod\7lph 1rupdo 6:22q 3:022q 'lp 3:022ii 6:22ii (1b3:0,b7lplqjvyj w 3:0,+ 7 3:0, 'lp 3:022ii 6:22ii 3rzhu2q 1rupdo 6:22q 3:022q 1rupdo 6:22q 3:022q 7 )5(4 i )5(4 w (167$57 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 16 rev. 1.1, 2009-12-16 TLD5095EL enable and dimming function 7.2.4 enable/pwmi high input current i en/pwmi,h ??30a v en/pwmi = 16.0 v 7.2.5 enable/pwmi low input current i en/pwmi,l ?0.11a v en/pwmi = 0.5 v 7.2.6 enable turn off delay time t en,off,del 8 1012ms? 7.2.7 pwmi min duty time t pwmi,h 4??s 7.2.8 enable startup time t en,start 100 ? ? s gate driver for dimming switch: 7.2.9 pwmo gate driver peak sourcing current 1) i pwmo,src ? 230 ? ma v pwmo = 3.5v 7.2.10 pwmo gate driver peak sinking current 1) i pwmo,snk ? 370 ? ma v pwmo = 1.5v 7.2.11 pwmo gate driver output rise time t r,pwmo ? 50 100 ns c l,pwmo = 3.3nf; v pwmo = 1v to 4v 7.2.12 pwmo gate driver output fall time t f,pwmo ? 3060ns c l,pwmo = 3.3nf; v pwmo = 1v to 4v 7.2.13 pwmo gate driver output voltage v pwmo 4.5 ? 5.5 v c l,pwmo = 3.3nf; current consumption 7.2.14 current consumption, shutdown mode i q_off ??10a v en/pwmi = 0.8 v; t j 105c; v in = 16v 7.2.15 current consumption, active mode 2) i q_on ??7ma v en/pwmi 4.75 v; i bo = 0 ma; v in = 16v v swo = 0% duty 1) not subject to production test, specified by design 2) dependency on switching frequency and gate charge of boost and dimming switch. v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL linear regulator datasheet 17 rev. 1.1, 2009-12-16 8 linear regulator 8.1 description the internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 v and current up to 50 ma. an external output capacito r with low esr is required on pin ivcc for stability and buffering transient load currents. during norma l operation the external boo st and dimming mosfet switches will draw transient currents from the linear regulator and its output capacitor. proper sizing of the output capacitor must be considered to supply sufficient peak current to the gate of the external mosfet switches. integrated undervoltage protection for the external switching mosfet: an integrated undervoltage reset threshold circui t monitors the linear regulator output voltage (v ivcc ) and resets the device in case the output voltage falls belo w the ivcc undervoltage reset switch off threshold (v ivcc,rth,d ). the undervoltage reset threshold for the ivcc pin helps to protect the external switches from excessive power dissipation by ensuring the gate drive volt age is sufficient to enhance the gate of an external logic level n-channel mosfet. figure 8 voltage regulator block diagram and simplified application circuit en / pwmi in 13 ivc c 1 linear regulator li nreg _ bl ckdi ag.vsd 14 gat e drivers www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 18 rev. 1.1, 2009-12-16 TLD5095EL linear regulator 8.2 electrical characteristics v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 8.2.1 output voltage v ivcc 4.6 5 5.4 v 6 v v in 45 v 0.1 ma i ivcc 50 ma 8.2.2 output current limitation i lim 51 90 ma v in = 13.5 v v ivcc = 4.5v 8.2.3 drop out voltage v dr 1.4 v i ivcc = 50ma 1) 1) measured when the output voltage v cc has dropped 100 mv from its nominal value. 8.2.4 output capacitor c ivcc 0.47 ? f 2) 2) minimum value given is needed for regulator stability; a pplication might need higher capacitance than the minimum. 8.2.5 output capacitor esr r ivcc,esr 0.5 ? f = 10khz 8.2.6 undervoltage reset headroom v ivcc,hdrm 100??mv v ivcc decreasing v ivcc - v ivcc,rth,d 8.2.7 undervoltage reset threshold v ivcc,rth,d 4.0??v v ivcc decreasing 8.2.8 undervoltage reset threshold v ivcc,rth,i ??4.5v v ivcc increasing www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL protection and diagnostic functions datasheet 19 rev. 1.1, 2009-12-16 9 protection and diag nostic functions 9.1 description the TLD5095EL has integrated circuits to diagnose an d protect against output overvoltage, open load, open feedback and overtemperat ure faults. in case any of the four fault co nditions occur the status output st will output an active logic low signal to communicate that a fault has occurred. during an overvoltage or open load condition the gate driver outputs swo and pwmo will turn off. figure 11 illustrates the various open load and open feedback conditions. in the event of an overtemperature condition ( figure 14 ) the integrated thermal shutdown function turns off the gate drivers and internal linear vo ltage regulator. the typical junction shutdown temperature is 175c. after cooling down the ic will automatically restart operation. thermal shut down is an integrated protection function designed to preven t immediate ic destruction and is not intended for continuous use in normal operation. figure 9 protection and diagnostic function block diagram figure 10 status output truth table output overvoltage open load overtemperature protection and diagnostic circuit swo and pwmo gate driver off linear regualtor off input output pro_diag_blckdiag.vsd open feedback input undervoltage or or output swo pwmo ivcc st input overvoltage open load overtemperature l l l pro_diag_tt.vsd level * false true condition h h or sw * sw* active l l l h h or sw * sw* l l l shutdown h h or sw * sw* *note: sw = switching false = condition does not exist true = condition does exist false true false true open feedback l l l h h or sw * sw* false true active active active active active active www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 20 rev. 1.1, 2009-12-16 TLD5095EL protection and diagnostic functions figure 11 open load and open feedback conditions figure 12 overvoltage protection description fbh fbl ovfb pwmo tld5095 r ovh r ovl r fb t dim 5 7 6 9 d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 overvoltage compartor feedback voltage error amplifier v bo open circuit 1 open circuit 2 open circuit 3 open circuit 4 + v ref - v ovfb,th open circuit condition 1 fault condition open fbh 2 3 4 open fbl open vbo open pwmo fault threshold voltage v ref -20 to -100 mv 0.5 to 1.0 v v fbx < v fbx,min = 4.5v detected by overvoltage v ref min threshold = 0.5 v max threshold = -20 mv max threshold = 1.0 v min threshold = -100 mv open fbl open fbh open v bo typical v ref = 0.3 v output open circuit conditions v ovfb t v ovfb,th 1.25v overvoltage protection is disabled overvoltage protection active v ovp,max ovfb tld5095 gnd 12 example : v out,max=40v 9 r ovl r ovh 1.25v 1k ? 1.25ma ? ? k ma v 2 . 33 25 . 1 40 www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL protection and diagnostic functions datasheet 21 rev. 1.1, 2009-12-16 figure 13 status output timing diagram shutdown normal thermal shutdown overvoltage open load / feedback startup v ivcc v fbh - v fbl t v st t t j t t sd t sd t sd t v ref,2 v ref,1 t j,sd t j,sd,hyst v ivcc,rth,i v ivcc,rth ,d 0.3 v typ t ss t ss 1 1 2 3 3 v bo t v ov fb v ov fb ,th 2 status output timing diagram v ov fb < v ov fb,t l www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 22 rev. 1.1, 2009-12-16 TLD5095EL protection and diagnostic functions figure 14 device overtemperature protection behavior v swo t i led t ? v en/pwmi t h l t j t ta t jsd t jso i peak t normal operation device off overtemp fault on overtemp fault on overtemp fault on overtemp fault v st and v ivcc 5v v pwmo t www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL protection and diagnostic functions datasheet 23 rev. 1.1, 2009-12-16 9.2 electrical characteristics note: integrated protection functions are designed to prevent ic destruction under fault conditions described in the data sheet. fault conditions are considered as ?outside? normal operating range. protection functions are not designed for continuous repetitive operation. v in = 6v to 40v; 4.5v v fbh 40v, 4.5v v fbl 40v, t j = -40 c to +150 c, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. status output: 9.2.1 status output voltage low v st,low ??0.4v i st = 1ma 9.2.2 status sink current limit i st,max 2??ma v st = 1v 9.2.3 status output current i st,high ??1a v st = 5v 9.2.4 status delay time t sd 8 1012ms? temperature protection: 9.2.5 over temperature shutdown t j,sd 160 175 190 c ? 9.2.6 over temperature shutdown hystereses t j,sd,hyst ?15?c? overvoltage protection: 9.2.7 output over voltage feedback threshold increasing v ovfb,th 1.21 1.25 1.29 v ? 9.2.8 output over voltage feedback hysteresis v ovfb,hys 50 ? 150 mv output voltage decreasing 9.2.9 over voltage reaction time t ovprr 2 ? 10 s output voltage decreasing 9.2.10 over voltage feedback input current i ovfb -1 0.1 1 a v ovfb = 1.25 v open load and open feedback diagnostics 9.2.11 open load/feedback threshold v ref,1,3 -100 ? -20 mv v ref = v fbh - v fbl open circuit 1 or 3 9.2.12 open feedback threshold v ref,2 0.5?1v v ref = v fbh - v fbl open circuit 2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 24 rev. 1.1, 2009-12-16 TLD5095EL application information 10 application information note: the following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. figure 15 led low side return applic ation circuit (boost to gnd, b2g) figure 16 bill of materials for led low side return application circuit en / pwmi comp in fbh fbl ovfb swo swcs freq / sync pwmo gnd sgnd ic 1 tld5095 st v batt v bo i vcc / v cc v in ivcc provisional parts i bo i sw c in c 1 c 2 l 1 d rv l bo d bo t sw r cs r st r freq r comp c comp c ivcc r ovh r ovl c bo r fb t dim 14 10 13 11 8 1 12 5 7 6 9 4 3 2 d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 v ref i led input ic 2 microcontroller (e.g. xc866) output output vcc l bo reference designator d bo part number manufacturer c in , c bo t dim ,t sw r cs r fb r ovh d 1 - 10 r ovl c comp r comp c ivcc r freq ,r st ic 2 ic 1 osram lw w5sm vishay coilcraft mss1278t-104ml_ eeefk 1h101gp panasonic value white 100 uh 100 uf, 50v epcos type led diode capacitor capacitor capacitor ic ic inductor resistor resistor resistor resistor resistor resistor transistor epcos 1uf , 6.3v mlcc ccnpzc105kbw x7r infineon tld 5095 -- infineon xc866 -- infineon ipg15n06s3l-45 dual n -ch enh . 820 m ? , 1% panasonic erj14bqfr82u 20 k ? , 1% panasonic erj3ekf 2002v 33.2 k ? , 1% panasonic erj3ekf 3322v 1 k ? , 1% panasonic erj3ekf 1001v 50 m ? , 1% panasonic erjb 1cfr 05u ss3h10 schottky , 3 a, 100 v r 10 nf x7r panasonic 10 k ? , 1% erj3ekf 1002v quantity 10 1 2 1 1 1 1 1 1 1 2 1 1 1 1 transistor infineon ipd35n10s3l-26 alternativ: 100v n-ch, 35a 2 transistor infineon bsp 318s alternativ : 60v n-ch, 2.6a 2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL application information datasheet 25 rev. 1.1, 2009-12-16 figure 17 sepic application circuit figure 18 bill of materials fo r sepic application circuit en / pwmi comp in fbh fbl ovfb swo swcs freq / sync pwmo gnd sgnd ic 1 tld5095 st v batt i vcc / v cc v in ivcc provisional parts i sw c in c 1 c 2 l filter d rv l 1 d bo t sw r cs r st r fr eq r comp c comp c ivcc r ovh r ovl c bo r fb t dim 14 10 13 11 8 12 5 7 6 9 4 3 2 d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 v ref i led input ic 2 microcontroller (e.g. xc866) output output vcc c sepic l 2 1 d pol r pol l 1 , l 2 reference designator d bo part number manufacturer c in , c bo t dim ,t sw r cs r fb r ovh d 1 - 10 r ovl c comp r comp, r pol c ivcc r freq ,r st ic 2 ic 1 osram lw w5sm vishay coilcraft mss1278t-223ml eeefk 1h101gp panasonic value white 22 uh 100 uf, 50v epcos type led diode capacitor capacitor capacitor ic ic inductor resistor resistor resistor resistor resistor resistor transistor epcos 1uf , 6.3v mlcc ccnpzc105kbw x7r infineon tld5095 -- infineon xc866 -- infineon ipg15n06s3l-45 dual n-ch enh . 820 m ? , 1% panasonic erj14bqfr82u 20 k ? , 1% panasonic erj3ekf2002v 33.2 k ? , 1% panasonic erj3ekf3322v 1 k ? , 1% panasonic erj3ekf1001v 50 m ? , 1% panasonic erjb 1cfr05u ss3h10 schottky , 3 a, 100 v r 10 nf x7r panasonic 10 k ? , 1% erj3ekf1002v quantity 10 1 2 1 1 1 1 2 2 1 2 1 1 1 1 transistor infineon ipd35n10s3l-26 alternativ: 100v n-ch, 35a 2 transistor infineon bsp 318s alternativ : 60v n-ch, 2.6a 2 inductor coilcraft msd1278 -223mld alternativ: coupled inductor 1 c sepic x7r, low esr epcos 3.3 uf, 20v capacitor 1 d pol diode 80v diode infineon bas1603w 1 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 26 rev. 1.1, 2009-12-16 TLD5095EL application information figure 19 led high side return applic ation circuit (boost to vbatt, b2b) figure 20 bill of materials for led high side return application circuit in fbh fbl ovfb swo swcs pwmo gnd sgnd ic 1 tld5095 14 5 12 9 4 3 2 6 7 en / pwmi comp st ivcc/vcc ivcc input ic 2 microcontroller (e.g. xc866) output output 10 13 11 8 1 v batt v in c in c 1 c 2 l 1 t dim1 provisional parts d rv l bo d bo i led v out r fb d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 t dim2 r ovh r ovl t sw r cs i sw r freq r comp c comp c ivcc r st c bo r dim2 r dim1 d z freq / sync vcc l bo reference designator d bo part number manufacturer c bo t dim1 ,t dim2 r cs r fb r ovh d 1 - 10 r ovl c comp r comp, r dim1, r dim2 c ivcc r freq ,r st ic 2 ic 1 osram lw w5ap vishay coilcraft mss1278t-104ml_ eevfk1k101q panasonic value white 100 uh 100 uf, 80v epcos type diode diode capacitor capacitor capacitor ic ic inductor resistor resistor resistor resistor resistor resistor transistor epcos 1 uf, 6.3v mlcc ccnpzc105kbw x7r infineon tld5095 -- infineon xc866 -- infineon bso615cg 60v dual n-ch (3.1a) and p-ch. enh. (2a) 820 m ? , 1% panasonic erj14bqfr82u 20 k ? , 1% panasonic erj3ekf 2002v 33.2 k ? , 1% panasonic erjp06f5102v 1 k ? , 1% panasonic erj3ekf 1001v panasonic ss3h10 schottky , 3 a, 100 v r 10 nf x7r panasonic 10 k ? , 1 % erj3ekf 1002v quantity 10 1 1 1 1 1 1 1 3 1 2 1 1 1 1 appdiagled _hsr_hssbom .vsd t sw transistor infineon ipd35n10s3l-26 n-ch, optimos-t2 100v, 35a 1 c in eeefk1h101gp panasonic 100 uf, 50v capacitor 1 50 m ? , 1% erjb1cfr05u d z -- diode -- 5v zener diode 1 transistor infineon ipd30n06s4l-23 alternativ: 60v n-ch, 30a 1 transistor infineon bsp 318s alternativ : 60v n-ch, 2.6a 1 transistor infineon bsp 123 alternativ: 100v n-ch (0.37a), 1 transistor infineon bsp 171p alternativ: 60v p-ch (1.9a) 1 www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL application information datasheet 27 rev. 1.1, 2009-12-16 figure 21 boost voltage application circuit figure 22 bill of materials for boost voltage application circuit note: the application drawings and co rresponding bill of materi als are simplified exampl es. optimization of the external components must be done accordi ngly to specific application requirements. fbh fbl ovfb swo swcs gnd sgnd en / pwmi comp ivcc r fr eq r comp c comp 13 11 8 1 in v batt v in c 1 c 2 l 1 14 7 6 9 4 3 2 12 freq / sync c in d rv provisional parts v bo i bo l bo d bo t sw r cs r ovh r ovl c bo r fb1 r fb2 r fb3 r l pwmo 5 ic 1 tld5095 ic 2 microcontroller (e.g. xc866) output output input st 10 i sw i load v ref v cc or v ivcc c ivcc constant v out r st l bo reference designator d bo part number manufacturer c bo r cs r fb1 ,r fb3 r ovh d 1 - 10 r ovl c comp r comp c ivcc r freq ,r st ic 2 ic 1 osram lw w5ap vishay coilcraft mss1278t-104ml_ eevfk 1k101q panasonic value white 100 uh 100 uf, 80v epcos type diode diode capacitor capacitor capacitor ic ic inductor resistor resistor resistor resistor resistor resistor epcos 1 uf, 6.3v mlcc ccnpzc105kbw x7r infineon tld5095 -- infineon xc866 -- 51 k ? , 1% panasonic erj3ekf 5102v 20 k ? , 1% panasonic erj3ekf 2002v 33.2 k ? , 1% panasonic erj3ekf 3322v 1 k ? , 1% panasonic erj3ekf 1001v panasonic ss3h10 schottky , 3 a, 100 v r 10 nf x7r panasonic 10 k ? , 1% erj3ekf 1002v quantity 10 1 1 1 1 1 1 1 1 1 2 1 1 1 t sw transistor infineon ipd35n10s3l-26 n-ch, optimos-t2 100v 1 c in eeefk 1h101gp panasonic 100 uf, 50v capacitor 1 50 m ? , 1% erjb 1cfr05u r fb 2 resistor 1 k ? , 1% panasonic erj3ekf1001v 1 www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 28 rev. 1.1, 2009-12-16 TLD5095EL application information 10.1 further application information in fixed frequency mode where an external resistor conf igures the switching frequency the minimum boost inductor is given by the formula in figure 23 . ?l min = minimum inductance required during fixed frequency operation ?v bo = boost output voltage ?r cs = current sense resistor ?f freq = switching frequency figure 23 minimum inductance required during fixed frequency operation (b2g configuration) in synchronization mode where an external clock source configures the switching frequency the minimum boost inductor is given by the formula in figure 24 . ?l sync = minimum inductance required during synchronization operation ?v bo = boost output voltage ?r cs = current sense resistor figure 24 minimum inductance required during synchronization operation (b2g configuration) ? for further information you may contact http://www.infineon.com/ l min v bo v [] r cs ? [] 106 3 ? 10 v [] f freq hz [] ----------------- ----------------- ------------------ ------------- - l sync v bo v [] r cs ? [] 106 3 ? 10 v [] 250khz --------------------- --------------------- ---------------- - www.datasheet.net/ datasheet pdf - http://www..co.kr/
TLD5095EL revision history datasheet 29 rev. 1.1, 2009-12-16 11 revision history revision date changes 1.1 2009-12-16 ? cover sheet updated ? package naming updated ? figure 2 updated ? exposed pad pin description updated 1.0 2009-11-30 initial datasheet www.datasheet.net/ datasheet pdf - http://www..co.kr/
datasheet 30 rev. 1.1, 2009-12-16 TLD5095EL package outlines 12 package outlines figure 25 pg-ssop-14 green product (rohs compliant) to meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. green products are rohs-compliant (i.e pb-free finish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). pg-ssop-14-1,-2,-3-po v02 1 7 14 8 14 17 8 14x 0.25 ?.05 2) m 0.15 d c a-b 0.65 c stand off 0 ... 0.1 (1.45) 1.7 max. 0.08 c a b 4.9 ?.1 1) a-b c 0.1 2x 1) does not include plastic or metal protrusion of 0.15 max. per side 2) does not include dambar protrusion bottom view ?.2 3 ?.2 2.65 0.2 ?.2 d 6 m d 8x 0.64 ?.25 3.9 ?.1 1) 0.35 x 45? 0.1 cd +0.06 0.19 8 ? max. index marking exposed diepad pg-ssop-14 for further package information, please visit our website: http://www.infineon.com/packages . dimensions in mm www.datasheet.net/ datasheet pdf - http://www..co.kr/
edition 2009-12-16 published by infineon technologies ag 81726 munich, germany ? 2009 infineon technologies ag all rights reserved. legal disclaimer the information given in this docu ment shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, infine on technologies hereby disclaims any and all warranties and liabilities of any kind, including witho ut limitation, warranties of non-infrin gement of intellectua l property rights of any third party. information for further information on technology, delivery terms and conditions and prices, please contact the nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements, components may contain dangerous substances. for information on the types in question, please contact the nearest infineon technologies office. infineon technologies compon ents may be used in life-su pport devices or systems only with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safe ty or effectiveness of that de vice or system. life support devices or systems are intended to be implanted in the hu man body or to support an d/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered. www.datasheet.net/ datasheet pdf - http://www..co.kr/

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