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AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 1. functional description the AMG-LI080 is a timer ic with a gate driver outp ut for mosfets. the timer is set by a zero crossing detector and reset by external rc. th is ic features protection against over- current, over-voltage and over-temperature. this ic is well suited for several kinds of dimmer and timer applications. 2. features q supply voltage: 10vdc...12vdc q power-on start schematic q load power between 20w...1000w (depends on external mosfets) q flexible soft start function q zero-crossing detection q inputs for protection functions (over-current, over -voltage and over-temperature) q low bias current q protective shut down function q led status indication for output status at all time s q ambient temperature range: 0c...85c q package: sop14 ? body size: 8.65mm x 3.90mm x 1.45m m q rohs compliant 3. application the AMG-LI080 is suitable for timing, pwm and dimme r applications. it is most suitable for incandescent and halogen lamp dimmers. AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 1 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 3.1. application circuit example AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 2 of 24 figure 1: example application circuit ot out vdd iout os softstart power on protect latch cs ov oc1 oc2 ~ time reset mono ff tres inz gnd cm1 cm2 zero detect ff ir r s q qb t ntc d3 d4 cs li080
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection table of contents 1.functional description ................................................... ................................................... ..... 1 2.features ................................................... ................................................... ........................... 1 3.application ................................................... ................................................... ....................... 1 3.1.application circuit example ................................................... ................................................... 2 4.block diagram ................................................... ................................................... ................. 4 5.block descriptions ................................................... ................................................... ........... 5 5.1.zero crossing ................................................... ................................................... .................... 5 5.2.time reset ................................................... ................................................... ......................... 5 5.3.gate driver + output latch ................................................... ................................................... 5 5.4.protection logic ................................................... ................................................... .................. 5 5.5.soft start ................................................... ................................................... ............................. 5 6.pinning ................................................... ................................................... ............................. 6 7.pin description ................................................... ................................................... ................. 7 8.function table ................................................... ................................................... .................. 8 9.absolute maximum ratings ................................................... ................................................ 8 10.electrical characteristics ................................................... ................................................... 9 10.1.operational range ................................................... ................................................... ........... 9 10.2.dc characteristics ................................................... ................................................... ........... 9 10.3.ac characteristics ................................................... ................................................... .......... 10 11.diagrams ................................................... ................................................... ...................... 11 11.1.electrical diagrams ................................................... ................................................... ......... 11 11.2.pulse diagrams ................................................... ................................................... .............. 18 11.3.start up diagrams ................................................... ................................................... .......... 19 11.4.soft start diagrams ................................................... ................................................... ........ 20 11.5.error function diagrams ................................................... ................................................... 21 12.ic-package ................................................... ................................................... .................. 22 13.ic-marking ................................................... ................................................... ................... 22 14.ordering information ................................................... ................................................... .... 22 15.notes and cautions ................................................... ................................................... ..... 23 15.1.esd protection ................................................... ................................................... ............... 23 15.2.storage conditions ................................................... ................................................... .......... 23 16.disclaimer ................................................... ................................................... .................... 23 17.contact information ................................................... ................................................... ...... 24 AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 3 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 4. block diagram AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 4 of 24 figure 2: li080 block diagram li080 ot out vdd iout os softstart power on protect latch cs ov oc1 oc2 time reset mono ff tres inz gnd cm1 cm2 zero detect ff ir r s q qb
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 5. block descriptions 5.1. zero crossing detects the zero crossing of the ac sine wave. the inz input is connected to the rectified mains with a resistor divider. for noise suppressio n, the inz input should also be connected to gnd with a capacitor. this capacitor will cause a t ime delay between the actual zero crossing and the detection. bigger capacitors will cause a l onger time delay than smaller ones. this time delay may or may not affect the function. 5.2. time reset determines the on time of the output, thus the duty cycle, or the time of the reverse phase cut. the time reset is triggered by the zero crossing. t he time reset is reset by an external r and c, which determines the time to reset. 5.3. gate driver + output latch supplies the gate charge for the external mosfets. continuous current capability is around 10ma. the output latch is set by the zero crossing and reset by the time reset. 5.4. protection logic the ic has 3 sense inputs for over voltage, over cu rrent and over temperature protection. ovp: over voltage protection otp: over temperature protection ocp: over current protection these sense inputs have an internal pull up and are connected to a comparator. the comparator thresholds are set according to their de dicated protection function, but nevertheless, they can be used for something else. the sense inputs all need some additional external circuitry to enable the protection. please refer to the example application diagram or the application note. if a specific protection func tion is not needed, the corresponding sense input should be connected to gnd. all 3 protection comparators individually set a latch when the threshold is reached. when set, the latch will inhibit the zero crossing and thus the output of the device and activate the led driver. the prot ective latch is reset at power up. as such the protection functions work like a recoverable fu se. 5.5. soft start soft start is in essence adjustable current source. with an external c, the time to reach max. current can be adjusted. in that way, a soft start function can be built. please refer to the example application diagram or the application note . in case, a 1-10v analog signal shall control the dimmer, it can be connected to the cs p in. AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 5 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 6. pinning pin# symbol description 1 vdd supply voltage 2 cs capacitor soft start 3 iout current source soft start 4 tres input dimming time reset 5 inz input detection zero crossing 6 cm1 connection 1 capacitor mono-flop zero detect 7 gnd signal ground 8 cm2 connection 2 capacitor mono-flop zero detect 9 ot input over temperature 10 ov input over voltage 11 oc2 input 2 over current 12 oc1 input 1 over current 13 out output gate driver 14 os output status figure 3: sop14 pinout AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 6 of 24 17 8 14 vdd cs iout inz gnd cm2 gnd ot ov oc1 out os tres cm1 oc2 li080
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 7. pin description vdd q power supply voltage, supply voltage for all intern al circuits q external block capacitor to be connected between th is pin and ground gnd q supply voltage ground, ground reference point for a ll thresholds out q gate driver output tres q threshold input, to be connected with a cap and sou rce resistance to set the reset time inz q zero crossing detection input q set the duty cycle when the voltage goes through ze ro i out q current source output for soft start cs q input, connected to a capacitor setting the soft st art time cm1, cm2 q input, connection 1 and 2 for a cap, setting the pu lse width via internal monoflop oc1, oc2 q current sense input for ocp, connection to external shunt resistors q on over current conditions, the output out and stat us os are both pulled low ov q over voltage protection input, connected to an exte rnal diode with voltage divider q on over voltage conditions, the output out and stat us os are pulled low ot q over temperature protection input, connected to an external ntc with voltage divider q on over temperature conditions, the output out and status os are pulled low os q output status indicator q on over current, voltage and temperature conditions this output is pulled low AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 7 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 8. function table # function inputs outputs 1 oc1 oc2 ov ot out os 2 normal l l l l high gate voltage h 3 error detection oc1 h x x x low gate voltage l 4 error detection oc2 x h x x low gate voltage l 5 error detection ov x x h x low gate voltage l 6 error detection ot x x x h low gate voltage l h ? high, l ? low, x ? any input state 9. absolute maximum ratings the absolute maximum ratings may not be exceeded un der any circumstances. # symbol parameter min max unit 1 v dd supply voltage -0.3 15 v 2 v out output voltage out (i outmax = 10ma) -0.3 vdd v 3 v os output status os (i osmax =3ma) -0.3 vdd v 4 v tres input voltage tres (i tresmax =10ma) -0.3 vdd v 5 v iout input voltage iout (i ioutmax =-1ma) -0.3 vdd v 6 v cs input voltage cs -13.5 vdd v 7.1 v incm1 input voltage cm1 (i cm1min =-1ma) -0.3 vdd v 7.2 v incm2 input voltage cm2 (i cm2min =1ma) -0.3 vdd v 8 v oc, ov, ot input voltage oc1, oc2, ov, ot -0.3 1 v 9 v inz input voltage inz (i inzmax =2ma) -0.3 6 v 10 i out current output out -10 10 ma 11 io+ output h short circuit pulsed current (vout=0v , pw<1us) -150 0 ma 12 io- output l short circuit pulsed current (vout=12 v, pw<1us) 0 150 ma 13 i tres input current tres 0 10 ma 14 i cm1 input current icm1 -1 0 ma 15 i cm2 input current icm2 0 1 ma 16 i os output current status os 0 3 ma 17 i inz input current inz 2 ma 18 i iout output current iout -1 0 ma AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 8 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection # symbol parameter min max unit 19 p tot total power dissipation 250 mw 20 p totg total power dissipation gate control 100 mw 21 v esd 1 ) esd ? input protection voltage vdd, tres, inz, ch, cm1, cm2 -2000 2000 v 22 t stg esd ? input protection voltage oc1, oc2, ov, ot, -9 00 900 v 23 t j esd ? output protection voltage out, os,cs -900 900 v notes: 1 ) v esd according to human body model, mil-std-883d, method 3015.7, class 2 2 ) t j = r thjc * p tot + t amb 10. electrical characteristics 10.1. operational range # symbol parameter min max unit 1 v dd supply voltage 10 12 v 2 t amb ambient temperature range 0 70 c 10.2. dc characteristics dc characteristics contain the spread of values gua ranteed within the specified supply voltage and temperature range and the technology process parame ter range unless otherwise specified. t j = 25c for typical values # symbol parameter conditions min typ max unit 1 i ddl current consumption v out = low v dd =12v v inz = 1v - 0.8 1.0 ma 2 i ddh current consumption v out = high v dd =12v v inz = 1v - 0.5 0.8 ma 3 i ddl_error current consumption error-mode v out = low v dd =12v v inz = 1v v ot 1v - 1.4 1.9 ma 4 v tres threshold voltage input tres v dd =12v 6.5 7.5 8.5 v 5 v pon threshold voltage power on v dd =12v 8.0 9.1 9.9 v 6 v th oc1, 2 threshold voltage oc1, 2 v dd =12v 0.55 0.75 0.85 v 7 v th ov threshold voltage ov v dd =12v 0.55 0.75 0.85 v 8 v th ot threshold voltage ot v dd =12v 0.55 0.75 0.85 v AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 9 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection # symbol parameter conditions min typ max unit 9 v outh output voltage high out -i out = 6ma v dd =12v 7.5 9.2 - v 10 v outh output voltage high out -i out = 10a v dd =12v 7.5 10.6 - v 11 v outl output voltage low out i out = 6ma v dd =12v - 0.2 0.55 v 12 v outl output voltage low out i out = 10a v dd =12v - 0.1 0.55 v 13 v osl output voltage low error-mode os i os = 2ma v dd =12v - 0.2 0.55 v 10.3. ac characteristics ac characteristics contain the spread of values gua ranteed within the specified supply voltage and temperature range and the technology process parame ter range unless otherwise specified. tj = 25c for typical values symbol parameter conditions typ max unit t r out turn-on rise time c l = 1.5nf v dd =12v 200 500 ns t f out turn-off fall time c l = 1.5nf v dd =12v 200 500 ns t soft c soft start time cold c cs = 4.7f, max. full power pf= 0.95 v dd =12v 1.9 s AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 10 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 11. diagrams 11.1. electrical diagrams idd_zero_signal = f (vdd,ta) 250 300 350 400 450 500 550 600 650 10 11 12 13 14 v dd (v ) idd_zero (ua) -10c 25c 55c 85c AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 11 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection iddh = f (vdd,ta) 300 350 400 450 500 550 600 650 700 750 800 10 11 12 13 14 v dd (v ) iddh (ua) -10c 25c 55c 85c iddl = f (vdd,ta) 300 400 500 600 700 800 900 1000 10 11 12 13 14 v dd (v ) iddl (ua) -10c 25c 55c 85c AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 12 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection iddl_error f (vdd,ta) 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 10 11 12 13 14 v dd (v ) iddl_error (ua) -10c 25c 55c 85c vtres = f (vdd,ta) 6 6,5 7 7,5 8 8,5 10 11 12 13 14 v dd ( v ) vtres (v) -10c 25c 55c 85c AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 13 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection vinz_threshold = f (vdd,ta) 600 650 700 750 800 10 11 12 13 14 v dd (v ) vinz_th (mv) -10c 25c 55c 85c v th 550 600 650 700 750 800 850 10 11 12 13 14 v dd (v ) vth (mv) -10c 25c 55c 85c AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 14 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection soft_start_time_cold = f (vdd,ta) 1,4 1,6 1,8 2 2,2 2,4 2,6 2,8 3 10 11 12 13 14 v dd (v ) soft_start_time (s) 85c 55c 25c -10c capacitor cs = 4,7uf pow er = f(vdd,ta) 93 93,5 94 94,5 95 95,5 96 96,5 97 10 11 12 13 14 v dd (v ) power (%) 85 55 c 25 -10c vdd=12v=95% AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 15 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection pow e r f = (ta) v dd=12v 94 94,2 94,4 94,6 94,8 95 95,2 95,4 95,6 95,8 96 -20 -10 0 10 20 30 40 50 60 70 80 90 ta (c) pow er (%) v pon = f (ta) 8,8 8,85 8,9 8,95 9 9,05 9,1 9,15 9,2 9,25 9,3 9,35 -20 -10 0 10 20 30 40 50 60 70 80 90 ta ( c ) vpo n ( v ) AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 16 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection v poff = f ( ta) 8 8,1 8,2 -20 -10 0 10 20 30 40 50 60 70 80 90 ta ( c ) vpoff ( v ) AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 17 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 11.2. pulse diagrams AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 18 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 11.3. start up diagrams AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 19 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 11.4. soft start diagrams AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 20 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 11.5. error function diagrams AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 21 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 12. ic-package 12.1. sop14 ? small outline package, 14 leads, rohs compliant small outline package (sop) package d e h a a1 e b l w sop 14 nom 8,65 3,90 6,00 1,75 0,15 1,27 0,41 0,72 4 dimension : mm 13. ic-marking 14. ordering information AMG-LI080-isp14u shipment in tubes AMG-LI080-isp14r shipment in tape & reel AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 22 of 24 e h e d b a1 a l w
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 15. notes and cautions 15.1. esd protection the requirements for handling electrostatic dischar ge sensitive devices are described in the jedec standard jesd625-a. please note the following recommendations: q when handling the device, operators must be grounde d by wearing a for the purpose designed grounded wrist strap with at least 1m resistance and direct skin contact. q operators must at all times wear esd protective sho es or the area should be surrounded by for esd protection intended floor mat s. q opening of the protective esd package that the devi ce is delivered in must only occur at a properly equipped esd workbench. the tape with wh ich the package is held together must be cut with a sharp cutting tool, never pulled or ripped off. q any unnecessary contact with the device or any unpr otected conductive points should be avoided. q work only with qualified and grounded tools, measur ing equipment, casing and workbenches. q outside properly protected esd-areas the device or any electronic assembly that it may be part of should always be transported in egb/esd shielded packaging. 15.2. storage conditions the AMG-LI080 corresponds to moisture sensitivity c lassification ml2 , according to jedec standard j-std-020, and should be handled and store d according to j-std-033. 16. disclaimer information given in this data sheet is believed to be accurate and reliable. however, no responsibility is assumed for the consequences of i ts use nor for any infringement of patents or other rights of third parties that may result fr om its use. alpha microelectronics gmbh does not authorize or warrant any of its products for us e in life support system equipment. the values stated in absolute maximum ratings may u nder no circumstances be exceeded. no warranty is given for use in life support system s or medical equipment without the specific written consent of alpha microelectronics gmbh. for questions regarding the application please contact the publisher. the declared data are only a description of the pro duct. they are not guaranteed properties as defined by law. examples are given without oblig ations and cannot give rise to any liability. reprinting of this data sheet ? or any part of it ? is not allowed without the license of the publisher. data sheets are subject to change withou t any notice. AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 23 of 24
AMG-LI080 timer/dimmer with gate driver, zero detection & pro tection 17. contact information this data sheet is published by alpha microelectron ics gmbh. to order samples or inquire information please contact: alpha microelectronics gmbh im technologiepark 1 15236 frankfurt (oder) germany am.info@alpha-microelectronics.de www.alpha-microelectronics.de +49-335-557-1750 (telephone) +49-335-557-1759 (fax) ? all rights reserved. AMG-LI080 revision: b 8. nov. 2012 ? all rights reserv ed page 24 of 24

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