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unisonic technologies co., ltd 3513 cmos ic www.unisonic.com.tw 1 of 11 copyright ? 2012 unisonic technologies co., ltd qw-r502-129.b pc power supply supervisor ? description the utc 3513 is designed to provide protection circuits, power good output (pgo) indicator, fault prot ection output (fpob) and a psonb control for pc switching power supply systems. the protection circuits include over voltage protection (ovp), under voltage protection (uvp) and over current protection(ocp) monitoring for 3.3v, 5v and two 12v. when 3.3v, 5v or 12v voltage is decreasing to 2.68v, 4.3v and 9.9v respectively, the under voltage protection (uvp) function will be enabled. fpo will be set to high to turn off the pwm controller ic. toggling the psonb from low to high will reset the fault protection latch. dip-16 sop-16 the voltage difference across external current shunt is used for ocp functions. an external resistor can be used to adjust protection threshold. the power supply is turned on after 38ms delay time when psonb signal is set from high to low. to turn off power supply, psonb signal is set from low to high with the delay time 38ms. the pgi circuitry provides a power-down warning signal for pgo. when pgi input is lo wer than the internal 1.20v reference voltage, pgo signal is pulled low. the device is available in two versions: utc 3513e/3513f . specially, fan control function is available in otp/fc pin of utc 3513f . ? features * ovp/uvp monitors 3.3v, 5v, 12v input voltage level. * ocp monitors i s33 , i s5 , i s12 input current sense. * fault protection output (fpob) with open drain output stage. * power good output (pgo) with open drain output stage. * 38ms de-bounce time for psonb input signal. * 300ms time delay from pgi to pgo. * 2.4ms time delay for pso nb to turn off fpob. ? ordering information ordering number package packing lead free halogen free 3513el-d16-t 3513eg-d16-t dip-16 tube 3513el-s16-r 3513eg-s16-r sop-16 tape reel 3513el-s16-t 3513EG-S16-T sop-16 tube 3513fl-d16-t 3513fg-d16-t dip-16 tube 3513fl-s16-r 3513fg-s16-r sop-16 tape reel 3513fl-s16-t 3513fg-s16-t sop-16 tube
3513 cmos ic unisonic technologies co., ltd 2 of 11 www.unisonic.com.tw qw-r502-129.b ? pin assignment ? pin descriptions pin no pin name type description 1 pgi input power good input. for atx smps, it detects ac line voltage through the main transformer. 2 gnd supply ground 3 fpob output fault protection output. output signal to control the primary pwm ic through an opto-coupler. when fpob is low, the pwm ic is enabled. 4 psonb input remote on/off logic input from cpu or main-board. the power supply will be turned on/off after 38ms delay. 5 otp/fc input over temperatur e protection/fan speed control 6 ri input reference setting. one external resist or ri connected between ri and gnd pin will determine a reference current, i ref = 1.20/ri, for ocp programming. 7 v s12b input 12v over/under voltage protection. 8 i s12b * input 12v over current protection. 8 p wm ** output pulse width modulation. 9 i s12a * input 12v over current protection. 9 i s12ab ** input 12v over current protection. 10 v s12a input 12v over/under voltage protection. 11 i s33 input 3.3v over current protection 12 v s33 input 3.3v over/under voltage protection 13 i s5 input 5v over current protection. 14 v s5 input 5v over/under voltage protection. 15 v dd supply power supply. 16 pgo output power good logic output, 0 or 1(open-drain). power good=1 means that the power supply is good for operation. the power good delay is 300ms. * 3513e only ** 3513f only
3513 cmos ic unisonic technologies co., ltd 3 of 11 www.unisonic.com.tw qw-r502-129.b ? function description(1) ordering otp low level otp high level fc/pwm t(psonb on)/ t(psonb off) tg2 3513e 2.45v 3.25v x 38ms 73 s 3513f 2.45v 3.25v 38ms 73 s ? function description(2) pgi psonb uv&oc protection ov protection fpob pgo pgi<1.2v l no no l l pgi<1.2v l no yes h l pgi<1.2v l yes no l l pgi<1.2v l yes yes h l pgi>1.2v l no no l h pgi>1.2v l no yes h l pgi>1.2v l yes no h l pgi>1.2v l yes yes h l x h x x h l note: fpob=l means: fault is not latched. fpob=h means: fault is latched pgo=l means: fault. pgo=h means: no fault x=do not care
3513 cmos ic unisonic technologies co., ltd 4 of 11 www.unisonic.com.tw qw-r502-129.b ? block diagram + - pgi un bandgap reference v ref =1.2v + - i s33 v s33 + - ov v 12a i ref *8 + - un i s12a + - v 12a i ref *8 + - ov + - un v s12a i s12b + - v 12a i ref *8 + - un + - ov v s12b i s5 + - i ref *8 v 12a + - ov + - un v s5 75ms/ 300ms delay 73 s debounce rst 73 s debounce clr 300ms delay pgo v dd fpob r sq q 2.4ms delay 38 ms debounce power on reset pwr 2.4v~3.2v otp psonb internal power v cci =3.6 v + - v ref =1.2v v 12a r i osc pwr clk fig. 1 3513e
3513 cmos ic unisonic technologies co., ltd 5 of 11 www.unisonic.com.tw qw-r502-129.b ? block diagram(cont.) + - pgi un bandgap reference v ref =1.2v + - i s33 v s33 + - ov v 12a i ref *8 + - un i s12ab + - v 12a i ref *8 + - ov + - un v s12a + - v 12a i ref *8 + - un + - ov v s12b i s5 + - i ref *8 v 12a + - ov + - un v s5 75ms/300ms delay 73 s/ debounce rst 73 s debounce clr 300ms delay pgo v dd fpob r sq q 2.4ms delay 38ms debounce power on reset pwr 2.4v~3.2v otp/fc psonb internal power v cci =3.6v + - v ref =1.2v v 12a r i + - pwm osc pwr clk fig. 2 3513f
3513 cmos ic unisonic technologies co., ltd 6 of 11 www.unisonic.com.tw qw-r502-129.b ? absolute maximum ratings parameter symbol ratings unit supply voltage v dd -0.3 ~ 16 v input voltage v s5 ,v s33 v in -0.3 ~ 7 v v s12a , v s12b -0.3 ~ 16 v i s12a , i s12b , i s5 , i s33 -0.3 ~ v 12a +0.3 v psonb, pgi, otp -0.3 ~ 7 v output voltage fpob v out -0.3 ~ v dd +0.3 v pgo -0.3 ~ v dd +0.3 v operating temperature t opr -40 ~ +125 storage temperature t stg -55 ~ +150 note 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. stress above those listed may caus e permanent damage to the devices. ? recommended operating conditions parameter symbol min typ max unit supply voltage v dd 4 12 15 v input voltage v s5 ,v s33 v in 7 v v s12a , v s12b 15 v i s12a , i s12b , i s5 , i s33 15 v psonb, pgi,otp 7 v output voltage fpob v out 7 v pgo 7 v output sink current fpob i o(sink) 30 ma pgo 10 ma ri output current i o ( ri ) 10 65 ua supply voltage rising time (v dd ) t r 1 ms ? electrical characteristics (t a =25 , v dd =5v, v 12a =12v) parameter symbol test conditions min typ max unit over voltage detection over voltage threshold v 12a, v 12b 13.2 13.8 14.4 v v 5 5.7 5.95 6.2 v v 33 3.7 3.9 4.1 v low level output voltage (fpob) v ol @ i sink =10ma 0.3 v @ i sink =30ma 0.7 output leakage current (fpob) i leak @ v ( fpob ) =5v 5 ua psonb high-level input voltage v ih 2 v low-level input voltage v il 0.8 v input pull-up current i in @ psonb=0v 100 ua
3513 cmos ic unisonic technologies co., ltd 7 of 11 www.unisonic.com.tw qw-r502-129.b ? electrical characteristics (cont.) parameter symbol test conditions min typ max unit pgi and pgo under voltage threshold v 12a, v 12b 9.5 9.90 10.5 v v 5 4.15 4.30 4.45 v v 33 2.54 2.68 2.82 v input threshold voltage (pgi) v i ( thd ) 1.16 1.20 1.24 v low level output voltage (pgo) v ol @ i sink =10ma 0.4 v output leakage current (pgo) i leak @ pgo=5v 5 ua otp/fc high-level input voltage (otp) v ih 3513e/3513f 3.10 3.25 3.40 v low-level input voltage (otp) v il 2.30 2.45 2.60 v start-up voltage (fc) 0.7 0.8 0.9 v stop voltage (fc) 0.55 0.65 0.75 v pwm high level output voltage v oh @ i source =4.5ma v 12a -0.4 v low level output voltage v ol @ i sink =4.5ma 0.4 v output leakage current i leak 5 a pwm frequency f pwm 28 35 42 khz switching characteristics psonb on (psonb low to fpob low) t (psonb on) @ v dd =5v 32 38 62 ms psonb off (psonb hi to pgo low) t (psonb off) @ v dd =5v 32 38 62 ms pgi to pgo delay time t pg @ v dd =5v 200 300 490 ms timing pgo low to fpo high t psoff @ v dd =5v 2.0 2.4 4 ms uvd/ocd turn on delay time t uvp1 @ fpob=low & pgi > 1.2v 65 75 122 ms t uvp2 @ fpob=low & pgi < 1.2v 260 300 488 ms noise deglitch time t g1 63 75 120 s noise deglitch time for latch t g2 63 75 120 s total device low voltage v dd 3.6 v supply current i dd @ psonb=5v 1 ma
3513 cmos ic unisonic technologies co., ltd 8 of 11 www.unisonic.com.tw qw-r502-129.b ? application circuit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pgi gnd fpob psonb otp ri v s12b i s12a v s12a i s33 v s33 i s5 v s5 v dd pgo 3513e 15 16 i s12b 47 0.01 f 5v i s5 +3.3v i s33 otp 0.01 f 300 psonb pgi r i 100 5v sb 10k 12v b 3k i s12a 12v a i s12b
3513 cmos ic unisonic technologies co., ltd 9 of 11 www.unisonic.com.tw qw-r502-129.b ? application circuit(cont.)
3513 cmos ic unisonic technologies co., ltd 10 of 11 www.unisonic.com.tw qw-r502-129.b ? typical timming diagram 1) pgi (under-voltage): 2) v 33, v 5, v 12a, v 12b (under-voltage) or i s33, i s5, i s12a, i s12b (over-current):
3513 cmos ic unisonic technologies co., ltd 11 of 11 www.unisonic.com.tw qw-r502-129.b ? typical timming diagram 3) v 33, v 5, v 12a, v 12b (over-voltage). psonb/otp fpob pgo t g2 v 33 /v 5 /v 12 t pg +t g1 t pg1 +t g1 t (psonb on) t (psonb off) t (psonb on) t (psonb on) t (psonb off) t psoff t psoff 4) otp/fc , pwm , fpob: (at v dd =5v , psonb=0v , v 12a, v 12b =12v , v 5 =5v , v 33 =3.3v) utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.

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