PS113A version : a.003 issue date : 2007/03/06 file name : sp-PS113A-a.003.doc total pages : 10 3-channel secondary monitoring ic ?W@^?I? 9?7?1 silicon touch technology inc . 9-7f-1, prosperity road i, science based industrial park, hsin-chu, taiwan 300, r.o.c. tel 886-3-5645656 fax 886-3-5645626
3-channel secondary monitoring ic version a.003 - 1 - PS113A PS113A 3-channel secondary monitoring ic general description PS113A is specially designed for switchi ng power supply system . three important functions of PS113A are the fo llowing: over-voltage protection, short circuit protection and power good signal generating. ovp (over voltage protection) monitors 5v , 12v and 3.3v to protect our power supply and pc, when one of these supply voltages exceeds their normal operation voltage. short circuit protection is done by uvp (under voltage protection). when power supply is in short circuit, the supply voltages will be much smaller than their normal operation voltages .we can use uvp to monito r our power supply whether it is in the dangerous power load. power good signal generating notifies personal computer when power supply is ready or power supply is going to shutdown, therefore it can provide a reliable power supply environment. features z over voltage protection and lock out z short circuit protection and lock out z fault protection output with open drain output stage z open drain power good output signal for power good input z built-in 300ms power good delay z 75ms delay for short-circuit turn on protection z 38ms pson control de-bounce z 20us de-bounce for noise immunity z wide power supply range from 4v to 16v z pin to pin compatible with tps3510 z special care for ac power off z additional 12v uvp protection
3-channel secondary monitoring ic version a.003 - 2 - PS113A block diagram vcc vs5 vs33 3.3 ov 3.3 uv 5 ov 5 uv 12 ov 12 uv 20us de-bounce band-gap reference power on reset clock generator 73us de-bounce h : 300ms l : 4.5us delay 38ms de-bounce s q r fpo/ pson/ pgi pgo gnd por v ref clk 1m 1m 1 0 s q r 1.25v h : 75ms l : 4.5us delay h : 4ms l : 4.5us delay r1 r2 r3 v re f v re f vcci vcci r4 r5 r6 v re f v re f vcci vcci r7 r8 r9 v re f v re f vcci vcci internal power vcci = 4v 1.13v vcci 0.63v vcci 1.25v vcci vcc vcci v ref vcci 4.5v 2k 10ua
3-channel secondary monitoring ic version a.003 - 3 - PS113A timing chart t d1 t b1 t d3 t d2 fpo/ pson/ pgi vcc vs12 vs5 vs33 pgo uvp/ovp protect pson/ turn on ac turn on pson/ turn off pson/ turn on ac turn off v pgi t d2 t d1 1.25v 0.63v 1.13v ovp ovp/uvp ovp
3-channel secondary monitoring ic version a.003 - 4 - PS113A pin descriptions pin no pin name descriptions 1 pgi power good input signal pin 2 gnd ground 3 fpo inverted fault protection output ,open drain output stage 4 pson on/off control input pin 5 vs33 3.3v over/under voltage protection input pin 6 vs5 5.0v over/under voltage protection input pin 7 vcc supply voltage/12v over voltage protection input pin 8 pgo power good output signal pin , open drain output stage absolute maximum ratings parameter rating unit storage temperature (t stg ) -40 to +125 c operating temperature (t opr ) -30 to +90 c supply voltage (v cc ) vcc -0.5 to +16.0 v vs33,vs5 -0.5 to vcc+0.5 v pgi -0.5 to vcc+0.5 v input voltage range (v i ) pson/ -0.5 to vcc+0.5 v fpo/ -0.5 to vcc+0.5 v output voltage range (v o ) pgo -0.5 to vcc+0.5 v esd susceptibility* (v esd ) > 2500 v * human body model (hbm). electrical characteristics , vcc=12v, t a = 25 ? c. (unless otherwise specified) power supply section parameter conditions min typ max unit supply voltage 3.8 5.0 16.0 v supply current v pson/ = 5v 2 3 ma power on reset threshold voltage (v por ) 3.6 v power on reset hysteresis (v hyst ) 0.6 v
3-channel secondary monitoring ic version a.003 - 5 - PS113A electrical characteristics (continued) over-voltage section parameter conditions min typ max unit vs33 3.76 3.88 4.0 v vs5 5.8 6.05 6.3 v over-voltage threshold vs12 12.4 13.5 13.6 v under-voltage section parameter conditions min typ max unit vs33 2.0 2.2 2.4 v vs5 3.3 3.5 3.7 v under-voltage threshold vs12 8.5 9.0 9.5 v pson/, analog input parameter conditions min typ max unit threshold voltage 0.9 1.2 1.5 v hysteresis (v hyst ) pgi, analog input parameter conditions min typ max unit threshold voltage for start t d1 1.16 1.25 1.33 v threshold voltage for start t d2 0.60 0.63 0.75 v threshold voltage for mask oc,uv 1.05 1.13 1.21 v hysteresis (v hyst )* * all of the comparator for pgi input in block diagram. pgo, open drain digital output parameter conditions min typ max unit leakage current (i lkg ) v pgo =5v 5 ua low level output voltage (v ol ) i sink =10ma 0.4 v
3-channel secondary monitoring ic version a.003 - 6 - PS113A electrical characteristics (continued) fpo/, open drain digital output parameter conditions min typ max unit leakage current (i lkg ) v fpo/ =5v 5 ua i sink =10ma 0.4 v low level output voltage (v ol ) i sink =20ma 0.7 v switching characteristics , vcc=12v, t a = 25 ? c. parameter conditions min typ max unit pgi to pgo delay time (t d1 ) 200 300 480 ms short circuit delay time (t d2 ) 49 75 100 ms pgo to fpo/ delay time (t d3 ) 2 4 6 ms pson/ de-bounce time (t b1 ) 24 38 61 ms noise de-glitch time (t b2 ) 10 20 30 us pgo noise de-glitch time (t b3 ) 47 73 120 us application note1: zener diode or resi stor or both of them c an be used in component x. note2: the bypass capacitor c by suggests to be 0.1uf~ 10uf and layout nearby pin vcc. d v r pgi c pgi 1k +5v sb pgo pson +5v sb = or s.p.s. secondary side +5v output +12v output +12v coil +3.3v output +3.3v coil r pgo 4.7k c pson 5 1 2 3 4 pgi pson/ fpo/ gnd pgo vs33 vs5 vcc PS113A 8 c by 7 6
3-channel secondary monitoring ic version a.003 - 7 - PS113A package specification d e 1 e b 1 a1 e a ? 0.0 0.5 1.0 inch 0 10 25 mm 15 5 20 ( 8-pin dip ) l seating plane b e b dimension in mm symbol dimension in inch note a 1 0.38 0.015 b 1 0.46 0.018 d 9.02 9.27 10.16 0.355 0.365 0.400 e 1 6.22 6.38 6.53 0.245 0.251 0.257 e 2.54 0.100 l 2.92 3.81 0.115 0.150 a 5.33 0.210 e 7.62 0.300 e b 8.97 9.02 9.07 0.353 0.355 0.357 b 1.52 0.06 ? 0o 7o 15o 0o 7o 15o min normal max min normal max
3-channel secondary monitoring ic version a.003 - 8 - PS113A package specification (continued) dimension in mm symbol dimension in inch min. max. min. max. d e h a 1 a c l ( 8-pin sop ) seating plane a 1.35 1.75 0.053 0.069 a 1 0.10 0.25 0.0040 0.010 e 1.27bsc 0.050bsc d 4.80 4.98 0.189 0.196 h 5.80 6.20 0.228 0.244 e 3.81 3.99 0.150 0.157 l 0.41 1.27 0.016 0.050 0 8 0 8 note b e h x 45 b 0.41bsc 0.016bsc c 0.20bsc 0.008bsc h 0.38bsc 0.015bsc
3-channel secondary monitoring ic version a.003 - 9 - PS113A the products listed herein are designed for or dinary electronic applications, such as electrical appliances, audio-visual equipm ent, communications devices and so on. hence, it is advisable that the devices should not be us ed in medical instruments, surgical implants, aerospace machi nery, nuclear power control systems, disaster/crime-prevention equipment and the like. misusing those products may directly or indirectly endanger human lif e, or cause injury and property loss. silicon touch technology, inc. will not take any responsibilities regarding the misusage of the products m entioned above. anyone w ho purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. silicon touch technology, inc. and its distributors and all their office rs and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such in tention and manipulation. silicon touch technology, inc. reserve the ri ght to make changes to their products or to discontinue any product or service withou t notice, and advise customers to obtain the latest version of relevant informati on to verify, before placing orders, that information being relied on is current and complete.
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