ts 19310a/b single - stage pfc t riac dimmable led driver 1 / 8 version: a14 sot - 26 description TS19310 is a buck/boost con trol ic with phase angle decoding circuit and hold current adjusting function for triac dimming led lighting. TS19310 achieves high power factor and low total harmonic distortion (thd) operation by boundary conduction mode ( bcm ) . the l ine and load regulation of led current is about 3 % , based on particular control method. features built - in p hase a ngle d ecod ing triac hold c urrent m anagement technique psr and buck/b oost control universal input voltage range TS19310acx6: 90 v ac ~ 135 v ac TS19310bcx6 : 180 v ac ~ 264 v ac active power factor correction technique constant output current control led d river open - led protection on dmg p in over - voltage protection on v cc p in short - led protection cycle by cycle over - current protection on cs p in over - temperature protection gate driving voltage clamping application s led l ighting ? down l ight ? tube l amp ? par l amp ? bulb ordering information part no. package packing ts19 310 a cx6 rf g sot - 26 3 k pcs/ 7 reel TS19310bcx6 rfg sot - 26 3kpcs/7 reel note: g denotes for halogen - and antimony - free as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds absolute maximum rating s ( note 1 ) parameter symbol range unit power s upply p in v cc 40 v dmg v oltage to gnd v dmg - 0.3 to 40 v out v oltage to gnd v out - 0.3 to 40 v cs v oltage to gnd v cs - 0.3 to 5 .5 v com v oltage to gnd v com - 0.3 to 5.5 v junction temperature range t j - 40 to +150 c storage temperature range t stg - 65 to +150 c lead temperature ( s oldering 10 s) t lead 260 c power dissipation @ t a =25 c p d 0.3 w esd r ating (human body m ode) (note 2 ) hbm 2 kv pin definition : 1. com 2. gnd 3. cs 4. out 5. v cc 6. dmg
ts 19310a/b single - stage pfc t riac dimmable led driver 2 / 8 version: a14 thermal informatio n parameter symbol range unit thermal resistance junction to ambient (note 3 ) r ja j c 106.6 c/w recommend ed operating condition s (note 4 ) parameter symbol conditions unit power supply p in v cc 34.5 v dmg voltage to gnd v dmg - 0.3 to 11.2 v out voltage to gnd v out - 0.3 to 19 v cs voltage to gnd v cs - 0.3 to 5 v com voltage to gnd v com - 0.3 to 5 v operating junction temperature range t j - 40 to + 125 c operating ambient temperature range t opa - 40 to +85 c electrical characteristics ( t a = 25 c, unless otherwise specified. ) parameter symbol condition min typ max unit turn - on v oltage v cc_on 17 18 19 v turn - off v oltage v cc_off 8.5 9.5 10 v quiescent c urrent 1 i q1 v cc =17v, at v cc off -- 30 50 q2 start up at 4.5 k hz -- 600 800 cc -- 2.5 3.0 ma protection vcc v oltage p rotection v ovpa 31 32 34 v output v oltage p rotection v ovps 10 10.5 11 v cs l imit v oltage v ocp 1.15 1.25 1.35 v short c ircuit p rotection (note 5) v o_str -- 3 -- v oscillator start - up t imer t str -- 222 -- gm amplifier transconductance g m -- 60 -- s comp_sou -- 20 --
ts 19310a/b single - stage pfc t riac dimmable led driver 3 / 8 version: a14 electrical characteristics ( t a = 25 c, unless otherwise specified. ) parameter symbol condition min typ max unit driver dropout v oltage v oh v cc =33v, i o = 10ma -- 1.2 1.5 v v ol v cc =33v, i o = - 10ma -- 0.12 -- v ris e t ime t rise v cc =20v, c o =1nf -- 40 -- ns fall t ime t fal l v cc =20v, c o =1nf -- 80 -- ns output c lamp v oltage v o_clamp -- -- 19 v leading e dge b lanking t ime t leb -- 500 -- ns over temperature protection (note 6) otp trip point -- 150 -- c otp release point -- 115 -- c otp threshold hysteresis -- 35 -- c note s : 1. stresses listed as the above absolute maximum ratings may cause permanent damage to the device. these are for stress ratings. functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. 2. devices are esd sensitive. hand l ing precaution recommended. 3. thermal resi stance is specified with the component mounted on a low effective thermal conductivity test board in free air at t a =25 c. 4. the device is not guaranteed to function outside its operating conditions. 5. guaranteed by design. 6. auto r ecovery t ype.
ts 19310a/b single - stage pfc t riac dimmable led driver 4 / 8 version: a14 function block pin description pin no. name function 1 com output pin of error amplifier. 2 gnd ground return for all internal circuitry. 3 cs input current sense pin. 4 out power mos fet output pin. 5 v cc power supply pin for all internal circuit ry . 6 dmg zero current demagnetization sensing. b l o c k d i a g r a m c o m o s c o n e s h o t c t d r i v e r o u t s / h c s c s p m u l t i p l y d m g d m g t d i s c l r r s t s e t _ s t r c l k b g v c c g n d c l k s r l a t c h s r q v r e f p r o s c p , o c p o v p a ( v c c ) o v p s ( o u t ) g m s e t _ a c t x v r e f p h a s e a n g l e d e c o d e
ts 19310a/b single - stage pfc t riac dimmable led driver 5 / 8 version: a14 typical application circuit application information function description the TS19310 is boundary conduction mode ( bcm ) operation with constant on time based regulator design to achieve high power factor performance. the TS19310 has built - in functions of phase dimmable, and included protection function related v cc over - voltage protection, open - led protection, short - led pro tection, over - temperature protection, primary side current limit, and gate clamp is within. the TS19310 is the sense switch current from cs voltage m ultiplier by test data input signal ( tdis ) to get the output current information b y system close loop feedback. the average output current can express by below formula . where : i o ut is the average output current n p is the primary - side turn ratio n s is the secondary - side turn ratio 0.333 is the reference potential setting of ic 2 is the reference potential setting of ic is the efficiency r s is the sensing resistor connected be tween the mosfet source and the gnd pin detail pin 1 : compensation this is the output of the g m amplifier . connect with a suitable rc network to ground. pin 2: ground gnd is the reference node of internal circuit. s s p out r 2 * 0.333 n n i ? ? ? ?
ts 19310a/b single - stage pfc t riac dimmable led driver 6 / 8 version: a14 pin 3 : current sense mosfet current signal sensing for m ultiply, p hase angle decode and current limit setting function. where : ? i cs is the input current sense ? ic internal cs pin 1.25v over voltage level ? r s is the sensing resistor connected between the mosfet source and gnd pin 4 : o utput gate drive for external mosfet switch and has built - in g ate clamp function. pin 5 : v cc power supply for the controller during normal operation. the controller will start up when vcc reaches 18v (typical) and will shut - down when vcc voltage is below 9.5v (typic al). a decoupling capacitor should be connected between the vcc and gnd pin as clos e as possible. the ts19 3 10 perform s vcc over voltage protection though vcc pin. once vcc pin exceed s 32v, ts19 310 turns off and latch es the mosfet until vcc goes below v cc_off . pin 6 : dmg the output voltage is reflected by the auxiliary winding (n a ) voltage of flyback transformer, the dmg pin can sense output information to depart from start up voltage (v o_str ) and protection voltage (v o_ovp ). when dmg sense voltage under v o_str , the circuit will work on short circuit protection, f str =1/ t str . when dmg sense voltage over v o_ovp , the circuit will work on over voltage protection, it will latch out off until v cc goes below v cc_off . where : v dmg _ovp is the outp ut - over - voltage protection point v ovps is the over voltage protection signal v o_str is the start - up timer n a is the number of auxiliary - winding turns n s is the number of secondary - winding turns ovp protection ( b y dmg) ovp protection ( b y v cc ) short circuit protection s cs(limit) r 1.25 i ? dmg2 dgm2 dgm1 ovps a s dmg_ovp r r r v n n v ? ? ovpa a s ovp vcc v n n v _ ? r r r v n n v dmg2 dmg2 dmg1 str o a s short o ? ? _ _ r d m g 2 n a v c c d m g r d m g 1 c d m g
ts 19310a/b single - stage pfc t riac dimmable led driver 7 / 8 version: a14 sot - 26 mechanical drawing unit: millimeters marking diagram sm sn = TS19310cx a device code = TS19310cx b device code l = lot code a~z y = year code ( d =2014 , e =2015 , f =2016 , g =2017 , h =2018 , j =2019 , k =2020) w = week code a~z = wk1~wk26 a ~ z = wk27~wk52
ts 19310a/b single - stage pfc t riac dimmable led driver 8 / 8 version: a14 notice specifications of the products displayed herein are subject to change without notice. tsc or anyone on its behalf, assumes no responsibility or liability for any errors or inaccurac ies. information contained herein is intended to provide a product description only. no license, express or implied, to any intellectual property rights is granted by this document. except as provided in tscs terms and conditions of sale for such product s, tsc assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of tsc products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any paten t, copyright, or other intellectual property right. the products shown herein are not designed for use in medical, life - saving, or life - sustaining applications. customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify tsc for any damages resulting from such improper use or sale.
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