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up6034 1 up6034-ds-f00a0, jul. 2018 www.upi-semi.com 4 channel high current balance led driver ? ? ? ? ? monitor led backlight ? ? ? ? ? tv led backlight ? ? ? ? ? 4.5v to 33v input voltage range ? ? ? ? ? support to 4-channel led string ? ? ? ? ? 100khz to 1mhz adjustable switching frequency ? ? ? ? ? 100hz to 20khz pwm dimming ? ? ? ? ? 20 to 160ma adjustable led channel current ? ? ? ? ? status output ? ? ? ? ? output short circuit and open schottky diode protection ? ? ? ? ? led short protection ? ? ? ? ? led open string protection ? ? ? ? ? adjustable over voltage protection ? ? ? ? ? over temperature protection ? ? ? ? ? over current protection r e b m u n r e d r oe g a k c a pg n i k r a m p o tk r a m e r d u t p 4 3 0 6 p ul 6 1 - p o s s tp 4 3 0 6 p ud a p d e s o p x e h t i w d a s p 4 3 0 6 p ul 6 1 - p o sp 4 3 0 6 p u- - d u s p 4 3 0 6 p ul 6 1 - p o s pp 4 3 0 6 p ud a p d e s o p x e h t i w general description applications features the up6034 consists of a high efficiency boost converter and four current balance controllers. it supports 4-channel led string designed for led backlight unit. the current matching function provides led backlight unit with better brightness uniformity. the up6034 can optimize led output voltage for getting better boost converter efficiency. the up6034 has a wide input supply voltage from 4.5v to 33v, adjustable led current from 20ma to 160ma for each strings, adjustable switching frequency from 100khz to 1mhz by external resistor and supports external pwm dimming from 100hz to 20khz. the up6034 includes over voltage protection, cycle by cycle current limit and over temperature protection. it supports led open string, led short and light bar short protection. output shorted circuit to ground and open schottky diode detection to prevent power mos damage. pin configuration note: (1) please check the sample/production availability with upi representatives. (2) upi products are compatible with the current ipc/jedec j-std-020 requirement. they are halogen-free, rohs compliant and 100% matte tin (sn) plating that are suitable for use in snpb or pb-free soldering processes. gnd pgnd 1 2 3 4 7 8 tssop-16l 5 6 ch4 ch3 ch2 ch1 pwm vref vin sstcmp status ovp 11 12 9 10 iset 16 13 14 15 rt en isw ldr gnd sop-16l ch4 ch3 ch2 ch1 pwm vref vin sstcmp status ovp iset rt en isw ldr 1 2 3 4 7 8 5 611 12 9 10 16 13 14 15 gnd psop-16l ch4 ch3 ch2 ch1 pwm vref vin sstcm p status ovp iset rt en isw ldr 1 2 3 4 7 8 5 611 12 9 10 16 13 14 15 pgnd ordering information
up6034 2 up6034-ds-f00a0, jul. 2018 www.upi-semi.com . o n n i p d u t p . o n n i p d a s p . o n n i p d u s p e m a n n i pn o i t c n u f n i p 13 13 11 h c . t u p n i e s n e s t n e r r u c d e l . d e s u g n i e b t o n f i d e t c e n n o c n u n i p e h t e v a e l 24 14 12 h c . t u p n i e s n e s t n e r r u c d e l . d e s u g n i e b t o n f i d e t c e n n o c n u n i p e h t e v a e l 35 15 1d n g . d n u o r g c i 46 16 13 h c . t u p n i e s n e s t n e r r u c d e l d e t c e n n o c n u n i p e h t e v a e l . d e s u g n i e b t o n f i 511 4 h c . t u p n i e s n e s t n e r r u c d e l . d e s u g n i e b t o n f i d e t c e n n o c n u n i p e h t e v a e l 622 t e s i . n i p t e s t n e r r u c d e l s g n i r t s d e l e h t t e s o t d n g o t r o t s i s e r a t c e n n o c . t n e r r u c 733 p v o . n i p e s n e s n o i t c e t o r p e g a t l o v r e v o 844 t r . n i p t e s y c n e u q e r f g n i h c t i w s h t i w y c n e u q e r f g n i h c t i w s e h t s t e s n i p s i h t . z h m 1 o t z h k 0 0 1 m o r f g n i g n a r r o t s i s e r a 955 n e . n i p e l b a n e . f f o d e n r u t s i e c i v e d e h t , w o l n e h w . h g i h e v i t c a 0 166 w s i . n i p e s n e s t n e r r u c t e f s o m r e w o p 1 177 r d l . r e v i r d e t a g t e f s o m r e w o p 2 188 f e r v . s t i u c r i c l a n r e t x e r o f t u p t u o v 5 3 199 n i v . n i p e g a t l o v y l p p u s t u p n i 4 10 10 1s u t a t s . t u p t u o s u t a t s n o i t a r e p o r e t r e v n o c d e l 5 11 11 1p m c t s s . n o i t a s n e p m o c p o o l l o r t n o c d n a t r a t s t f o s 6 12 12 1m w p . t u p n i l o r t n o c g n i m m i d m w p functional pin description
up6034 3 up6034-ds-f00a0, jul. 2018 www.upi-semi.com typical application circuit functional block diagram isw vin en ch1 gnd ldr ch2 ch3 ch4 pwm iset sstcmp rt reference vref status isw ovp current setting otp osc ovp protection boost controller current controller ldr vin en up6034 vin vled sstcmp ovp ch1 gnd ch2 ch3 ch4 en pwm pwm rt iset isw vref status qm6008d 0.05 10uh 0 0 100 2.2uf 2.2uf 1uf 4.4uf 100k 10k 470k 1000pf 1000pf 10k ss35 r ovp1 1m r ovp2 51k r iset 12k r rt 100k r comp 100 c comp1 470nf
up6034 4 up6034-ds-f00a0, jul. 2018 www.upi-semi.com functional description the up6034 is a 4-channel led current matching controller for led tv backlight unit. it supports wide range input voltage from 4.5v to 33v. the led current can adjust from 20ma to 160ma by external resistor. the switching frequency can adjust from 100khz to 1mhz. it supports external pwm dimming frequency from 100hz to 20khz. the up6034 has built-in over current protection, over voltage protection, over temperature protection, led short protection, led open string protection, output short circuits protection and schottky diode open protection. setting switching frequency the up6034 switching frequency is adjustable. the switching frequency can be adjusted by rt pin resistor r rt to gnd. ) k ( r 50 ) mh ( f rt z osc ? = adjustable led current: the led current can be set by the following equation: ) k ( r 1200 ) ma ( i iset led ? = r iset is the resistor between iset pin and gnd. external pwm dimming: the up6034 supports pwm dimming function. the up6034 brightness control is determined by the signal on the pwm pin with a suggested pwm frequency range from 100hz to 20khz. led short protection: if any string of ch1~ch4 voltage exceeds a threshold of approximately 8.5v during the normal operation, the corresponding string will be turned off and latched. led open protection: if any string is open, the output voltage will boost up until the ovp pin voltage is approximately 2v threshold. the ic will ignore the open string and other strings will be in normal operation. if all strings are open and the ovp pin voltage reaches 2v threshold, the ldr will turn off and ic will shut down and latch. adjustable over voltage protection: the up6034 has adjustable over voltage protection. the boost converter with an integrated over voltage protection prevents the components from exceeding the absolute maximum voltage rating. when the ovp reaches the threshold voltage, the boost converter turns the power mos switch off. the internal switch will be turned on again once the voltage at ovp pin drops below its threshold voltage. the over voltage protection set voltage is divided by r ovp1 and r ovp2 resistors. ) r r 1 ( ovp o vp 2 ovp 1 ovp th set + = over current protection: the boost converter has over current protection to limit peak inductor current. it prevents large current damaging the inductor and diode. during the on-time, when isw pin reaches 0.54v, the ldr will turn off immediately. actual current limit is always larger than the nominal value because of the internal circuit delay. current limit is also affected by the input voltage, duty cycle, and inductor value. output short circuit/schottky diode open protection: when ovp pin voltage is less than 0.1v threshold, ldr will turn off. it prevents the components from damage when output shorted to ground or schottky diode open conditions. shut down under abnormal condition: when ovp pin voltage is greater than 3v, the ic will shut down and latch unless switching the en to reset ic. status ouput: the status will output a logic low if any of the below conditions exists: 1) over voltage protection 2) led short protection 3) any string is open 4) over temperature protection over temperature protection: when the junction temperature exceeds 140 o c, all the blocks will be turned off. once the temperature cools down to approximately 110 o c, ic will resumes normal operation.
up6034 5 up6034-ds-f00a0, jul. 2018 www.upi-semi.com note 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. note 2. devices are esd sensitive. handling precaution recommended. note 3. ja is measured in the natural convection at t a = 25 c on a low effective thermal conductivity test board of jedec 51-3 thermal measurement standard. note 4. the device is not guaranteed to function outside its operating conditions. package thermal resistance (note 3) tssop -16l (with exposed pad) ja --------------------------------------------------------------------------------------------- 38 o c/w tssop -16l (with exposed pad) jc ---------------------------------------------------------------------------------------------- 10 o c/w sop -16l ja ------------------------------------------------------------------------------------------------------------------ 110 o c/w sop -16l jc ------------------------------------------------------------------------------------------------------------------ 30 o c/w psop -16l ja ------------------------------------------------------------------------------------------------------------------ 45 o c/w psop -16l jc ------------------------------------------------------------------------------------------------------------------ 3 o c/w power dissipation, p d @ t a = 25 c tssop -16l (with exposed pad) ------------------------------------------------------------------------------------------------- ---------- 2.63w sop -16l ------------------------------------------------------------------------------------------------------------------ 0.91/w psop -16l ------------------------------------------------------------------------------------------------------------------ 2.22/w (note 4) input v oltage ----------------------------------------------------------------------------------------------------------------- ------------------- 4.5v to +33v en, pwm, ovp, status, vref to gnd ---------------------------------------------------------------------------------- 0v to +5. 5v iset, rt, sstcmp, ldr to gnd -------------------------------------------------------------------------------------- 0v to vref ch1~ch4 led current ---------------------------------------------------------------------------------------------------------- 20ma to 160ma pwm frequency ---------------------------------------------------------------------------------------------------------------- -- 100hz to 20khz switching frequency -------------------------------------------------------------------------------------------------------- 1 00khz to 1mhz operating junction temperature ra nge ---------------------------------------------------------------------- -40 o c to +125 o c operating ambient temperature ra nge ------------------------------------------------------------------------------ -40 o c to +85 o c absolute maximum rating thermal information recommended operation conditions (note 1) supply input voltage to gnd --------------------------------------------------------------------------------------------------- -0.3v to +40v en, pwm, ovp, status, v ref to gnd ----------------------------------------------------------------------------------------- -0 .3v to +7v iset, rt, sstcmp, ldr to gnd ---------------------------------------------------------------------------------- -0.3v to (vref +0.3)v ch1~ch4 to gnd (no switching) ------------------------------------------------------------------------------------------------- ---- -0.3v to 60v isw to gnd ------------------------------------------------------------------------------------------------------------------- -------- -0.3v to 50v ch1~ch4 current -------------------------------------------------------------------------------------------------------------- -------------------------- 200ma storage temperature ra nge ---------------------------------------------------------------------------------------------------- -------- -65 o c to +150 o c junction temperature --------------------------------------------------------------------------------------------------------- --------------------------- 150 o c lead temperature (soldering, 10 sec) ----------------------------------------------------------------------------------------- ------------------- 260 o c esd rating (note 2) hbm (human body mode) -------------------------------------------------------------------------------------------------------- ------------- 2kv mm (machine mode) ------------------------------------------------------------------------------------------------------------ ----------------- 200v
up6034 6 up6034-ds-f00a0, jul. 2018 www.upi-semi.com electrical characteristics r e t e m a r a pl o b m y ss n o i t i d n o c t s e tn i mp y tx a m s t i n u t n e r r u c n o i t a r e p o n i vi p o v 5 = m w p , v 5 = n e- -- -0 1a m t n e r r u c n w o d t u h s n i vi n d h s v 0 = m w p , v 0 = n e- -- -5a u t n e r r u c y b d n a t s n i vi b t s v 0 = m w p , v 5 = n e- -- -0 2 2a u c i g o l t u o k c o l e g a t l o v r e d n uv k c l f e r v t u o k c o l - -6 . 3- -v e m u s e r t u o k c o l e g a t l o v r e d n uv m s r f e r v e m u e s e r - -4- -v e g a t l o v e c n e r e f e r f e r vv f e r 5 8 . 455 1 . 5v y t i l i b a p a c t n e r r u c t u p t u o f e r vv v f e r - -- -0 3a m t u p n i h g i h c i g o l ) m w p , n e ( e g a t l o v v h i v 3 3 o t v 5 . 4 = n i v4 . 2- -- -v , n e ( e g a t l o v t u p n i w o l c i g o l ) m w p v l i v 3 3 o t v 5 . 4 = n i v- -- -7 . 0v y c n e u q e r f g n i h c t i w sc s o fr t r k 0 0 1 = ? 0 5 40 0 50 5 5z h k e m i t n o t e f s o m m u m i n i mn o _ m t0 20 50 8s n e m i t f f o t e f s o m m u m i n i mf f o _ m t0 40 80 2 1s n e c n a t s i s e r k n i s r d lr k s _ r d l 15 . 35 ? e c n a t s i s e r e c r u o s r d lr c s _ r d l 159 ? r e v o t e f s o m l e n n a h c - n n o i t c e t o r p t n e r r u c v w s i 8 4 . 04 5 . 06 . 0v r e p t n e r r u c d e l n o i t a l u g e r l e n n a h c i t e s r t e s i k 2 1 = ? 5 90 0 15 0 1a m g n i h c t a m t n e r r u c d e l i m d e l - -5 . 1 - / +3 - / +% n o i t c e t o r p e g a t l o v r e v o d l o h s e r h t v p v o 9 . 10 . 21 . 2v l a m r o n b a r e d n u n w o d n u h s n o i t i d n o c v p v o 8 . 232 . 3v d l o h s e r h t n o i t c e t o r p t r o h s d e lv t h s 4 h c ~ 1 h c8 . 75 . 82 . 9v (v in = 24v, t a = 25 o c, unless otherwise specified)
up6034 7 up6034-ds-f00a0, jul. 2018 www.upi-semi.com pwm(5v/div) i-led (200ma/div) ldr(5v/div) pwm dimming waveform 2ms/div 18wled, v in = 24v, i-led = 240ma (per string =60ma), pwm = 200hz. duty = 10% pwm(5v/div) i-led (200ma/div) ldr(5v/div) v out (200mv/div) i-led (100ma/div) ldr(5v/div) v en (2v/div) v out (20v/div) v in (10v/div) i-led (100ma/div) pwm(5v/div) i-led (200ma/div) ldr(5v/div) pwm(5v/div) i-led (200ma/div) ldr(5v/div) typical operation characteristics power on from en vout ripple 5us/div 18wled, v in = 24v, i-led = 240ma (per string =60ma), c out = 56uf pwm dimming waveform 2ms/div 18wled, v in = 24v, i-led = 240ma (per string =60ma), pwm = 200hz. duty = 50% pwm dimming waveform 200us/div 18wled, v in = 24v, i-led = 240ma (per string =60ma), pwm = 2khz. duty = 50% pwm dimming waveform 200us/div 18wled, v in = 24v, i-led = 240ma (per string =60ma), pwm = 2khz. duty = 10% 10ms/div 18wled, v in = 24v, i-led = 240ma (per string =60ma)
up6034 8 up6034-ds-f00a0, jul. 2018 www.upi-semi.com inductor selection inductor selection should consider the inductor value, rated current, dcr, size, and cost. the main parameter for inductor selection is saturation current of the inductor which should be higher than the minimum switch current limit. the inductor should have low core loss at and low dcr for better efficiency. output capacitor selection for the best output voltage filtering, the low esr of output capacitor is recommended. the x5r, x7r ceramic capacitors are suitable for up6034 applications. the output voltage ripple can be calculated as below: xes r i v v v xl i f 1 c i v p in d out p s out out out + ? ? ? ? ? ? ? ? ? + ? = ? i out : load current c out : selected output capacitor f s : switching frequency i p : delta switching current l: selected inductor value v d : rectifier diode forward voltage esr: output capacitor esr value diode selection to achieve high efficiency, the schottky diode with low forward voltage and fast reverse recovery time are the ideal choices for up6034. the voltage rating should be higher than the maximum output voltage of the boost converter. the average forward current rating should be higher than the current limit of the boost converter. power mos selection the power mos vds voltage rating should be higher than the maximum output voltage of the boost converter. the ids current rating should be higher than the current limit of the boost converter. pcb layout for best performance of the up6034, the following guidelines must be strictly followed. 1. minimize the high-current and switching paths loop, made the trace width enough to avoid the emi and stability problems. keep input capacitor, inductor, lx- pin, schottky diode and output capacitor placement be in the shortest area. 2. avoid using vias in the high-current paths. if vias are unavoidable in the high-current paths, use many vias in parallel to reduce resistance and inductance. 3. place the vin and vref pin bypass capacitors as close as possible to the up6034. the ground of vin capacitor should be connected directly to the gnd that near the ic. 4. minimize the length and maximize the width of the traces between the output capacitors and the load for best transient responses. 5. place the output voltage divider resistors near the ovp pins. keep the feedback resistors and trace far away from the high-current and switching loops to avoid the noise coupling. application information
up6034 9 up6034-ds-f00a0, jul. 2018 www.upi-semi.com package information tssop - 16l with exposed pad note 1.package outline unit description: bsc: basic. represents theoretical exact dimension or dimension target min: minimum dimension specified. max: maximum dimension specified. ref: reference. represents dimension for reference use only. this value is not a device specification. typ. typical. provided as a general value. this value is not a device specification. 2.dimensions in millimeters. 3.drawing not to scale. 4.these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.15mm. 0.19 - 0.30 6.40 bsc 0.65 bsc 4.30 - 4.50 2.20 - 3.20 4.90 - 5.10 0.00 - 0.15 1.20 max 2.20 - 3.20 0.45 - 0.75
up6034 10 up6034-ds-f00a0, jul. 2018 www.upi-semi.com package information sop - 16l note 1.package outline unit description: bsc: basic. represents theoretical exact dimension or dimension target min: minimum dimension specified. max: maximum dimension specified. ref: reference. represents dimension for reference use only. this value is not a device specification. typ. typical. provided as a general value. this value is not a device specification. 2.dimensions in millimeters. 3.drawing not to scale. 4.these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.15mm. 0.35 - 0.49 9.80 - 10.01 5.79 - 6.20 0.10 - 0.25 0.19 - 0.25 0.40 - 1.27 1.27 bsc 3.80 - 4.00 1.35 - 1.75 1
up6034 11 up6034-ds-f00a0, jul. 2018 www.upi-semi.com package information psop - 16l note 1.package outline unit description: bsc: basic. represents theoretical exact dimension or dimension target min: minimum dimension specified. max: maximum dimension specified. ref: reference. represents dimension for reference use only. this value is not a device specification. typ. typical. provided as a general value. this value is not a device specification. 2.dimensions in millimeters. 3.drawing not to scale. 4.these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.15mm. 0.35 - 0.49 5.80 - 6.20 0.00 - 0.25 1.27 bsc 3.80 - 4.00 1.75 max 1.90 - 2.60 0.10 - 0.25 0.40 - 1.27 1
up6034 12 up6034-ds-f00a0, jul. 2018 www.upi-semi.com important notice upi and its subsidiaries reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. upi products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment. however, no res ponsibility is assumed by upi or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of upi or its subsidiaries. copyright ( c ) 2011, upi semiconductor corp. upi semiconductor corp. headquarter 9f.,no.5, taiyuan 1st st. zhubei city, hsinchu taiwan, r.o.c. tel : 886.3.560.1666 fax : 886.3.560.1888 upi semiconductor corp. sales branch office 12f-5, no. 408, ruiguang rd. neihu district, taipei taiwan, r.o.c. tel : 886.2.8751.2062 fax : 886.2.8751.5064

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