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? 2015 microchip technology inc. ds20005413a-page 1 CL220 features 5.0 to 220v operating range (v a-b ) 20ma 10% at 5.0 - 160v 0.01% / c typical te mperature coefficient packages types: - to-252 (d-pak) -to-220 can be paralleled for higher current applications industrial lamp indicators signage accent lighting constant current source constant current sink description CL220 is a high voltage, temperature-compensated, 20ma constant current r egulator. the device operates at up to 220v, and is accurate to 10% over a 5 - 160v range. the device can be used as a two-terminal, con- stant-current source or a constant-current sink. a typical application for CL220 is to drive leds with a constant current of 20ma. multiple CL220s can also be used in parallel to provide higher currents such as 40ma, 60ma, 80ma, and so on. the device is available in the to-252 (d-pak) and to-220 packages. simple, 220v, 20ma, temperature-compensated, constant-current, led driver ic downloaded from: http:///
CL220 ds20005413a-page 2 ? 2015 microchip technology inc. package type typical application circuit functional circuit diagram equivalent block diagram to-252 (d-pak) see table 2-1 for pin information va nc vb va nc vb vb to-220 vavb up to 220v + v led( total ) va vb functional circuit diagram CL220 i led 20ma control circuit and temperature compensation 10nf +v led(total) ? va vb control circuit and temperature compensation 20ma va vb downloaded from: http:/// ? 2015 microchip technology inc. ds20005413a-page 3 CL220 1.0 electrical characteristics absolute maximum ratings ? operating voltage, v a-b .................................................................................................................................................................. 240v operating junction temperature, t j .............................................................................................................................. - 40c to +125c storage temperature, t s .............................................................................................................................................. -55c to +150c note 1: obtained by characterization; not 100% tested in production. note 1: obtained by characterization; not 100% tested in production. 2.0 pin description the locations of the pins are shown in package type and packaging information . ? notice: stresses above those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. exposure to maximum rating conditions for extended perio ds may affect devi ce reliability. table 1-1: electrical characteristics electrical specifications: unless otherwise specified, for all specifications t j = +25c symbol parameter min typ max units conditions v a-b operating voltage 5.0 - 220 v ? i a-b / ? ti a-b temperature coefficient - 0.01 - %/c v a-b = 45v, t j = -40c to +100c ( note 1 ) r a-b dynamic resistance - 300 - k ? i ab output current 18 20 22 ma v ab = 4.0 - 160v 18 - 25 v ab = 160 - 220v (fig. 4) --2 2 v ab = 0 - 4.0v i os turn-on overshoot current - 25 - ma v t = 45v (fig. 5) ( note 1 ) t os overshoot duration - 1 - s v t = 45v (fig. 5) ( note 1 ) t dly turn-on delay - 10 - s v t = 45v (fig. 5) ( note 1 ) t rise turn-on rise time - 200 - ns v t = 45v (fig. 5) ( note 1 ) table 1-2: thermal resistance, junction to ambient package ja units conditions min typ max to-252 (d-pak) C 81 C c/w soldered to 2.0 cm 2 copper area exposed to free air ( note 1 ) to-220 C 29 C c/w table 2-1: pin description pin # to-252 pin # to-220 function description 1 1 va current flows into this pin 4 2, 4 vb current flows out of this pin 3 3 nc no connection downloaded from: http:/// CL220 ds20005413a-page 4 ? 2015 microchip technology inc. 3.0 application information figures 3-1 - 3-6 show the characteristics and timing for CL220. figure 3-1: temperature characteristics figure 3-2: output characteristics 1.021.01 1.00 0.99 0.98 -55 -35 -15 5 25 45 65 85 105 125 145 junction temperature (c) current, normalized to 25c 5v 45v 90v 0 5 10 15 20 60 100 140 180 220 i a-b (ma) v a-b (v) 3025 20 15 10 50 scale change downloaded from: http:/// ? 2015 microchip technology inc. ds20005413a-page 5 CL220 figure 3-3: timing diagram figure 3-4: timing test circuit figure 3-5: CL220 for multiple led strings t dly t rise 10% 90% i a-b 0ma i os 100% inrush spike due to chargingof parasitic capacitances and dv/dt c dg feed-thru turn-on overshoot due to start-up characteristics of internal circuitry v t v a-b 0v t os CL220 v t 1.0f film i a-b i led 20ma vb va up to 220v +v led(total) vb va vb va vb va 10nf i led 20ma i led 20ma i led 20ma +v led(total) ? CL220 CL220 CL220 CL220 downloaded from: http:/// CL220 ds20005413a-page 6 ? 2015 microchip technology inc. figure 3-6: CL220 for higher current 3.1 functional circuit and block diagram figure 3-7: functional circuit diagram figure 3-8: block diagram (equivalent functional circuit) vb va up to 220v +v led(total) vb va i led 60ma vb va 10nf +v led(total) ? CL220 CL220 CL220 va vb control circuit and temperature compensation 20ma va vb downloaded from: http:/// ? 2015 microchip technology inc. ds20005413a-page 7 CL220 4.0 packaging information 4.1 package marking information legend: xx...x product code or customer-specific information y year code (last digit of calendar year) yy year code (last 2 digits of calendar year) ww week code (week of january 1 is week 01) nnn alphanumeric traceability code pb-free jedec ? designator for matte tin (sn) * this package is pb-free. the pb-free jedec designator ( ) can be found on the outer packaging for this package. note : in the event the full microchip part nu mber cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for product code or custom er-specific information. package may or not include the corporate logo. 3 e 3 e to-252 (d-pak) example yywwnnn xxxxx xxxx e 3 1522343 220k4 cl e 3 3-lead to-220 example yywwnnn xxxxxxx xxxxxxxxx e 3 1522343 CL220n5 e 3 downloaded from: http:/// CL220 ds20005413a-page 8 ? 2015 microchip technology inc. note: for the most current package drawings, see the microchip packaging specification at www.microchip.com/packaging. downloaded from: http:/// ? 2015 microchip technology inc. ds20005413a-page 9 CL220 3-lead to-220 package outline (n5) symbol a a1 a2 b b2 c d d1 d2 e e1 e2 e h1 l l1 q - p dimen- sion (inches) min .140 .020 .080 .015 .045 .012 ? .560 .326 ? .474 ? .380 .270 0.20* .100 bsc .230 .500 .200* .100 .139 nom - - - .027 .057 - - - - - - - - - - - - max .190 .055 .120 ? .040 .070 .024 .650 .361 ? .507 .420 .350 .030 .270 .580 .250 .135 .161 jedec registration to-220, variation ab, issue k, april 2002. 7 k l v g l p h q v l r q l v q r w v s h f l ? h g l q w k h - ( ' ( & |