TS19603 400ma high voltage adjustable current regulator with enable control 1/6 version: a13 sop - 8ep general description the TS19603 is a high voltage, low dropout current regulator of maximum output current up to 400ma. th e output current is decided by an external resistor, and the output sink current could be disabled via oe pin. TS19603 internally also build-in thermal protection to prev ent the chip over heat damage. features 0.28v v drop @ 400ma 400ma maximum output current output current controlled by external resistor 3s fast response output stage enable control wide supply voltage range: 5~50v typical application circuit applications high power led driver rgb full color power led driver lcd monitor/tv led backlight driver ordering information part no. package packing TS19603cs rlg sop-8ep 2.5kpcs / 13 reel note: g denotes halogen free product. absolute maximum rating parameter symbol value unit input voltage v in 55 v output sink current i out 450 ma output enable voltage v en 13.2 v operating junction temperature range t opr -40 ~ +150 oc storage temperature range t stg -65 ~ +150 oc thermal resistance junction to air ja 80 oc/w power dissipation p d @ t a =25 c (note 2) p d 1 w thermal resistance - junction to ambient ja 36 oc/w thermal resistance - junction to case jc 5.5 oc/w esd rating (human body model) (note 4) esd 2 kv recommend operating conditions parameter symbol min typ max unit input voltage v in 5 -- 50 v output enable voltage v en 0 -- 12 v output sink current i out 200 -- 400 ma operating junction temperature range t opr -20 -- +125 oc operating free-air temperature range t a -20 -- +85 oc TS19603 pin definition : 1. gnd 8. out 2. gnd 7. out 3. vdd 6. nc 4. iset 5. oe
TS19603 400ma high voltage adjustable current regulator with enable control 2/6 version: a13 electrical specification ( v in =24v , t a =25 o c, unless otherwise specified.) parameter conditions min typ max unit output current v out =0.5v, r set =3k ? -- 200 -- ma v out =0.5v, r set =1.5k ? -- 400 -- output current deviation v out =0.5v, i out =200ma~400ma -- -- 5 % set current range 200 -- 900 a minimum output current i set =200a -- 100 -- ma maximum output current i set =900a -- 450 -- ma output dropout voltage i set =800a (note 1) -- 0.28 -- v load regulation v out =0.5v to 3v, i out =200ma -- -- 3 ma/v line regulation v out =0.5v, i out =350ma, v in =5~50v -- 0.08 0.15 %/v enable low input voltage 0 -- 0.8 v enable high input voltage should lower than vin 2 - - 12 v enable low input current -20 -- +20 a enable high input current -5 -- +5 a output enable delay time en from low to high. v out =0.5v, i out =350ma, duty 50% -- 3 -- s output disable delay time en from high to low. v out =0.5v, i out =350ma, duty 50% -- 3 -- s supply current consumption -- -- 5 ma note 1 : output dropout voltage: duty 90% x i out @ v out =0.5v note 2: stresses listed as the above absolute maximum rati ngs may cause permanent damage to the device. these are for stress ratings. functional operation of the device at these or any other conditions beyo nd those indicated in the operational sections of the specif ications is not implied. exposure to absolute maxim um rating conditions for extended periods may remain possibil ity to affect device reliability. note 3: thermal resistance is specified with the component mounted on a low effective thermal conductivity tes t board in free air at ta=25c. note 4: 2 square inch of fr-4, double sided, 1 oz. minimum copper weight. note 5: devices are esd sensitive. handling precaution reco mmended. pin function description pin name pin function vin power supply pin out output pin. sink current is decided by the current on r set connected to i set pin. i set =1.2v x 500/r cs gnd ground pin oe output stage enable control pin. high enable the ou tput pin. it can be left floating for normally on. iset output current setting pin. connect a resistor from iset to gnd to set the led bias current i set =0.002 x i out =1.2v/r cs
TS19603 400ma high voltage adjustable current regulator with enable control 3/6 version: a13 application information TS19603 is a high voltage, low dropout current regu lator for maximum output current up to 400ma with o e pin control. the current could be linearly adjusted thr ough variable resister connected to iset pin, or by pwm control via oe pin. although the absolute maximum rating of out pin 75v, the dropout voltage between out pin a nd gnd pin should not be too large when current is sin king because of the thermal dissipation capability of the package. here are some of the typical application examples: dc voltage input any dc voltage level between 5v to 50v could be ado pted as power source vdd for typical application of TS19603 as long as vdd is larger than the total for ward voltage drop of the led string (at expecting c urrent) by 0.35v. if 50v ~ 60v voltage level is adopted as pow er source to positive end of the led string, one ze ner shunt regulator could be used to provide appropriate volt age to vdd pin. TS19603 TS19603
TS19603 400ma high voltage adjustable current regulator with enable control 4/6 version: a13 application information (continue) led backlight solution TS19603 could coordinate with any type of dc-to-dc converter through feedback path to realized led bac klight module. the number of leds in the string is variabl e even with certain fixed power source since the ou tput voltage of the dc-to-dc converter could be modulated accord ing to feedback signal. ac voltage input TS19603 could work with any kind of well-known or w ell-developed switch-mode power supply system. simp ly cut off the internal feedback path of the power supply system and then feed the signal from TS19603 back t o the power supply system instead. TS19603 TS19603
TS19603 400ma high voltage adjustable current regulator with enable control 5/6 version: a13 sop-8ep mechanical drawing marking diagram y = year code m = month code for halogen free product ( o =jan, p =feb, q =mar, r =apl, s =may, t =jun, u =jul, v =aug, w =sep, x =oct, y =nov, z =dec) l = lot code sop-8ep dimension dim millimeters inches min max min max. a 4.80 5.00 0.189 0.196 b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.054 0.068 d 0.35 0.49 0.014 0.019 e 2.05 2.41 0.081 0.095 e1 2.82 3.30 0.111 0.130 f 0.40 1.25 0.016 0.049 g 1.27bsc 0.05bsc k 0.10 0.25 0.004 0.009 m 0o 7o 0o 7o p 5.80 6.20 0.229 0.244 r 0.25 0.50 0.010 0.019
TS19603 400ma high voltage adjustable current regulator with enable control 6/6 version: a13 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 erro rs or inaccuracies. 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 co nditions of sale for such products, tsc assumes no liability wh atsoever, and disclaims any express or implied warr anty, relating to sale and/or use of tsc products includi ng liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any pa tent, copyright, or other intellectual property rig ht. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applica tions. customers using or selling these products for use i n such applications do so at their own risk and agr ee to fully indemnify tsc for any damages resulting from such i mproper use or sale.
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