View AP3041_8472272.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 1 general description the AP3041 is a current mode high voltage low-side channel mosfet controller, which is ideal for boost regulators. it contains all the features needed to implement single-ended primary topology dc/dc converters. the input voltage of AP3041 ranges from 5v to 27v. its operation frequency is adjustable from 100khz to 1mhz. the AP3041 has uvlo (under voltage lock out) circuit. it uses two external resistors to set the uvlo voltage. the AP3041 also has an over output voltage protection to limit the output voltage. the ovp voltage can be set through external resistors. if the output voltage is higher than the ovp high threshold point, it will disable the driver and the system is latched up. the output short circuit protection as well as led low side short to ground detection function can be applied in system. the AP3041 has other protection functions, such as led short protection, led high side short to ground protection, diode short protection, over current protection, over temperature protection and so on. the AP3041 is available in soic-16 package. features ? input voltage range: 5v to 27v ? 1a peak and 10v mosfet gate driver ? 20ns quick mosfet gate driver ? duty cycle limit of 90% ? programmable uvlo ? pwm dimming control ? programmable over voltage protection ? led open protection ? led short circuit protection ? diode short circuit protection ? output short circuit protection ? led low-side short to ground detection ? ov pin under voltage protection ? over current protection ? programmable slope compensation ? adjustable soft-start ? adjustable protection delay ? fault status indication ? adjustable operation frequency from 100khz to 1mhz ? over temperature protection applications ? led lighting ? led tv ? lcd display modules figure 1. package type of AP3041 soic-16
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 2 pin configuration m package (soic-16) figure 2. pin configuration of AP3041 (top view)
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 3 pin description pin number pin name function 1 ct capacitor setting shut down delay time 2 ov over output voltage protection pin 3 uvlo two resistors connected from this pin to gnd and the p ower supply respectively are used to set start-up and shutdown level 4 en enable pin 5 vin input supply pin. this pin must be locally bypassed 6 vcc this pin should be bypassed to gnd with a ceramic capacitor 7 out connect this pin to the gate of external mosfet, the gate driver has 1a peak current capability 8 gnd ground 9 fault this pin can be used to drive the external mosfet. the logic o f the driver signal is controlled by that of pwm pin and the signal phase of them is the same. this pin is pulled to ground under fault condition of ovp, uvlo, otp, diode short circuit and led short circuit. 10 rt an external resistor connected from this pin to gnd is used to set the operating frequency 11 cs sense switch current pin, which is used for current mode control and for current limit. the current limit voltage is 500mv 12 sc slope compensation for current sense. a resistor between sc and gnd will program the slope compensation 13 ss/comp an external soft-start time capac itor is placed from this pin to gnd and is charged by an internal 20 a current source to control regulator soft-start time. compensation pin. this pin is the output of the internal error amplifier. 14 fb voltage feedback pin. the reference voltage is 500mv 15 pwm this pin can be connected to current matched chip and receives error signal used to shut down the system 16 flag fault condition output pin. when the output is in short circuit condition, the flag outputs logic low to shut down the power path. please refer to the application circuit
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 4 functional block diagram ct ov uvlo en vin vcc out gnd flag fb ss/comp sc cs rt gnd 5 4 3 2 15 9 10 12 1 14 13 11 8 7 16 8 6 bandgap 1.25v en reference 3v 300mv 1.25v 10 a 10 a 2.25v ovp fault otsd osc clk saw ovp 300mv 1.25v scp ea pwm saw 1.75v leb ocp 500mv clk r s q drive logic pwm fault figure 3. functional block diagram of AP3041
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 5 ordering information AP3041 - circuit type g1: green package m: soic-16 package temperature range part number marking id packing type soic-16 -40 to 85 c AP3041m-g1 AP3041m-g1 tube AP3041mtr-g1 AP3041m-g1 tape & reel bcd semiconductor's pb-free products, as designated with "g1" suffix in the part number, are rohs compliant and green. absolute maximum ratings (note 1) parameter symbol value unit input voltage v in 30 v vcc pin voltage v cc 20 v out pin voltage v out 20 v fault pin voltage v fault 20 v fb pin voltage v fb 20 v uvlo pin voltage v uvlo 7 v cs pin voltage v cs 20 v sc pin voltage v sc 7 v flag pin voltage v flag 7 v ss/comp pin voltage v ss/comp 7 v rt pin voltage v rt 7 v pwm pin voltage v pwm 7 v en pin voltage v en 30 v ov pin voltage v ov 7 v thermal resistance (junction to ambient, no heat sink, free air) ja 82 oc/w blank: tube tr: tape & reel
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 6 absolute maximum ratings (note 1, continued) parameter symbol value unit operating junction temperature t j 150 oc storage temperature t stg -65 to 150 oc lead temperature (soldering, 10 sec) t lead 260 oc esd (human body model) 2000 v esd (machine model) 200 v note 1: stresses greater than those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ?recommended operating co nditions? is not implied. exposure to ?absolute maximum ratings? for extended periods may affect device reliability. recommended operating conditions parameter symbol min max unit input voltage v in 5 27 v operating frequency f 0.1 1 mhz operating temperature range t j -40 85 oc electrical characteristics v cc =12v, v en =3.3v, t a =25oc, unless otherwise specified. parameter symbol conditi ons min typ max unit input voltage v in 5 27 v feedback voltage v fb 490 500 510 mv supply current i cc v fb =v in , no switching 1.5 5 ma shutdown supply current i q v en =0 1 2 a vcc voltage v cc 11v v in 27v 9.5 10.0 10.5 v 5v v in 10v, i cc =5ma v in -0.5 v vcc current limit i cc-lim 35 ma vcc pin uvlo rising threshold v cc-hi 4.7 v vcc pin uvlo falling hysteresis v cc-hys 300 mv oscillator frequency f osc 0.1 1 mhz sc peak voltage v sc_pk 530 680 mv uvlo threshold v uvlo 1.20 1.25 1.30 v uvlo hysteresis current source i uvlo-hys 10 a
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 7 electrical characteristics (continued) v cc =12v, v en =3.3v, t a =25oc, unless otherwise specified. parameter symbol conditions min typ max unit current limit threshold voltage v cs 0.48 0.5 0.52 v rt voltage v rt 1.20 1.25 1.30 v error amplifier voltage gain g v 680 v /v error amplifier transconductance g s 500 a /v en pin threshold voltage v eh 2.5 v v el 0.5 pwm pin threshold voltage v ih 2.5 v v il 0.5 ov threshold v ov 2.25 v ov hysteresis current source i ov-hys 10 a led- short to gnd detection level v fb_low 0.3 v led+ short to led-detection level v fb_high 1.25 v led+ short to gnd detection level v ov_low 0.3 v diode short detection level v cs_high 1.75 v ct current source i ct 5 a ct threshold voltage v ct 2.6 v maximum duty cycle d max f=200khz 80 90 % soft-start current source i ss 16 22 28 a out pin rising time t rise c out =1nf 20 ns out pin falling time t fall c out =1nf 20 out high voltage level (v cc -v out ) v out-h i out =50ma 0.25 0.75 v out low voltage level (v out ) v out-l i out =50ma 0.25 0.75 v fault pin rising time t rise c fault =1nf 100 ns fault pin falling time t fall c fault =1nf 100 fault high voltage level (v cc -v fault ) v fault_h i fault =10ma 0.25 0.75 v fault low voltage level v fault_l i fault =10ma 0.25 0.75 v fault minimum pulse width t d oscillator frequency=200khz 20 s flag high voltage level v flag-h i flag =500 a 2 v flag low voltage level v flag-l i flag =500 a 0.25 0.75 v thermal shutdown temperature t otsd 160 oc thermal shutdown hysteresis t hys 20 oc
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 8 0 20406080100 0 20 40 60 80 100 120 140 led current (ma) pwm duty (%) v in =12v, v pwm =5v f pwm =70hz f pwm =200hz f pwm =500hz f pwm =1khz f pwm =2khz 0 40 80 120 160 200 240 280 320 0 100 200 300 400 500 600 700 800 900 1000 frequency (khz) r t (k ) v in =12v -50 -25 0 25 50 75 100 125 150 0.46 0.48 0.50 0.52 0.54 v fb (v) temperature ( o c) v in =12v -75 -50 -25 0 25 50 75 100 125 150 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 supply current (ma) temperature ( o c) v in =12v v in =24v typical performance characteristics figure 4. led current vs. pwm duty figure 5. frequency vs. r t figure 6. v fb vs. temperature figure 7. supply current vs. temperature
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 9 -40 0 40 80 120 160 0.0 0.5 1.0 1.5 2.0 2.5 3.0 shutdown current ( a) temperature ( o c) v pwm =0v v in =12v v in =24v -75 -50 -25 0 25 50 75 100 125 150 300 320 340 360 380 400 frequency (khz) temperature ( o c) r t =82k -75 -50 -25 0 25 50 75 100 125 150 0.2 0.3 0.4 0.5 0.6 0.7 0.8 cs threshold (v) temperature ( o c) v in =12v typical performance characteristics (continued) figure 8. supply current vs. temperature figure 9. frequency vs. temperature figure 10. v cc vs. input voltage figure 11. cs threshold vs. temperature 5 1015202530 0 2 4 6 8 10 12 14 v cc (v) input voltage (v) t a =25 o c
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 10 -75 -50 -25 0 25 50 75 100 125 150 1.0 1.2 1.4 1.6 1.8 2.0 pwm threshold voltage (v) temperature ( o c) rising falling -75 -50 -25 0 25 50 75 100 125 150 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 ov thershold voltage (v) temperature ( o c) v in =12v -75 -50 -25 0 25 50 75 100 125 150 0.26 0.28 0.30 0.32 0.34 0.36 fb low threshold voltage (v) temperature ( o c) v in =12v -75 -50 -25 0 25 50 75 100 125 150 1.0 1.2 1.4 1.6 1.8 2.0 en threshold voltage (v) temperature ( o c) v in =12v rising falling typical performance characteristics (continued) figure 12. en threshold voltage vs. temperature figure 13. pwm threshold voltage vs. temperature figure 14. ov threshold voltage vs. temperature figure 15. fb low threshold voltage vs. temperature
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 11 -75 -50 -25 0 25 50 75 100 125 150 1.150 1.175 1.200 1.225 1.250 1.275 1.300 1.325 1.350 fb high threshold voltage (v) temperature ( o c) v in =12v -75 -50 -25 0 25 50 75 100 125 150 0.20 0.24 0.28 0.32 0.36 0.40 ov low threshold voltage (v) temperature ( o c) v in =12v -40 0 40 80 120 160 16 20 24 28 32 36 soft-start current ( a) temperature ( o c) v in =12v v in =24v -40 0 40 80 120 160 4.0 4.4 4.8 5.2 5.6 6.0 6.4 6.8 ct charge current ( a) temperature ( o c) v in =12v v in =24v typical performance characteristics (continued) figure 16. fb high threshold voltage vs. temperature figure 17. ov low threshold voltage vs. temperature figure 18. soft-start current vs. temperature figure 19.ct charge current vs. temperature
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 12 typical application figure 20. typical application circuit of AP3041
data sheet boost controller for wled driver in medium-sized lcd panel AP3041 oct. 2012 rev. 1. 2 bcd semiconductor manufacturing limited 13 mechanical dimensions soic-16 unit: mm(inch) 7 5.800(0.228) 6.240(0.246) 0.330(0.013) 0.510(0.020) 20:1 a 1.350(0.053) 1.750(0.069) 1.250(0.049) 1.650(0.065) 7 0 8 b c s 1.000(0.039) 0.200(0.008) 20:1 b c 50:1 c-c 0 . 2 0 0 ( 0 . 0 0 8 ) 0 . 2 5 0 ( 0 . 0 1 0 ) 0.400(0.016) 1.270(0.050) 0 . 2 5 0 ( 0 . 0 1 0 ) depth 0.200(0.008) 0 . 2 5 0 ( 0 . 0 1 0 ) 0 . 0 5 0 ( 0 . 0 0 2 ) r0.200(0.008) r0.200(0.008) a 3.800(0.150) 4.040(0.159) 3 8 9 . 5 8 8 7 0.400(0.016) 45 note: eject hole, oriented hole and mold mark is optional.
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd., shenzhen office unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corp. 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax: +1-510-324-2788 - headquarters bcd semiconductor manufacturing limited no. 1600, zi xing road, shanghai zizhu sc ience-based industrial park, 200241, china tel: +86-21-24162266, fax: +86-21-24162277 bcd semiconductor manufacturing limited important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited

▲Up To Search▲

Price & Availability of AP3041

	To Download AP3041 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .