chopper regulators pq1cy1032z pq1cy1032z to-263 surface mount type chopper regulator outline dimensions (unit : mm) features maximum switching current: 3.5a built-in on/off control function built-in soft start function to suppress overshoot of output voltage in power on sequence or on/off control sequence built-in oscillation circuit (oscillation frequency: typ. 150khz) built-in overheat protection function, overcurrent shut-down function to-263 package pq1cy1032zz : sleeve-packaged product pq1cy1032zp : tape-packaged product variable output voltage (output variable range: vref to 35v/?ref to ?0v) [possible to select step-down output/inversing output according to external connection circuit] applications lcd monitors car navigation systems switching power supplies absolute maximum ratings ?lease refer to the chapter " handling precautions ". parameter symbol rating unit input voltage 40 v 3.5 a 35 7 41 ? 1 v v v w v ? 0.3 to + 40 switching current 150 ?c ? 20 to + 85 ?c junction temperature input-output voltage output ? com voltage error input voltage v in v i-o v out v soft terminal voltage v soft v adj i sw t j (ta = 25 c) operating temperature storage temperature soldering temperature t opr ? 40 to + 150 ?c t stg 260 (10s) ?c t sol ? 2 ? 3 ? 1 ? 5 power dissipation p d ? 4 ? 1 voltage between v in terminal and com terminal ? 2 voltage between v out terminal and com terminal ? 3 voltage between v soft terminal and com terminal ? 4 p d :with infinite heat sink ? 5 overheat protection may operate at t j = 125?c to 150?c (2.4)( 1.3) com (common to heat sink) v out v in v soft o adj (0 to 0.25) 1cy1032 10.6 max. 2 3.28 0.5 (0.55) 8.4 0.5 13.7 max. (0.6) (0.6) (0.6) (0.45) (0.45) 1.05 +0.2 0.1 1.05 +0.2 0.1 3 0.9 +0.2 0.1 4 (1.7) epoxy resin (0.6) 3.5 0.5 ( ) : typical dimensions 1 1 2 3 4 5 5 4 3 2 notice in the absence of confirmation by device specification sheets,sharp takes no responsibility for any defects that may occur in equipment using any sharp devices shown in catalogs,data books,etc.contact sharp in order to obtain the latest device specification sheets before using any sharp device. internet internet address for electronic components group http://sharp-world.com/ecg/
chopper regulators pq1cy1032z electrical characteristics fig.1 test circuit parameter symbol conditions v sat v ref ? v ref |r eg l| |r eg i| f o i l unit max. typ. min. ? ? ? ? ? ? ? ?? 1.235 135 0.7 0.8 0.9 3.6 i sw = 3a ? t j = 0 to 125 ? c i o = 0.5 to 3a v in = 8 to 35v i o = 3a ? 1.4 1.26 0.5 0.2 1 80 150 2 4.2 1.8 1.285 1.5 2.5 165 5.8 (unless otherwise specified, condition shall be v in = 12v, i o = 0.5a, v o = 5v, v soft terminal = 0.1 f, ta=25 ? c) v v % % % % khz % v 3.8 4.6 5.5 v ? 140 400 a ? 816ma a output saturation voltage reference voltage reference voltage temperature fluctuation load regulation line regulation efficiency oscillation frequency oscillation frequency temperature fluctuation overcurrent detecting level on threshold voltage stand-by current output off-state dissipation current ? f o t j = 0 to 125 ? c ? i chg ? ? ? ? 10 ? a 1.3 ? v 2.3 ? v charge current v th(on) v thil input threshold voltage v thh v thl i sd i qs overcurrent shutdown threshold voltage v in = 40v, terminal = 0.9v duty ratio = 100%, terminals is open, terminal terminal = 0v, terminal v in = 40v, terminal = 0v duty ratio = 0%, terminal = 0v, terminal , terminals is open, terminal 4 2 5 5 4 5 4 4 5 terminal 5 5 5 12 l d 5 3 4 pq1cy1032z 5 terminal r 1 r 2 i o i sd i qs i chg v o c o c in v in + + 45 h 1 000 f 220 f low high open v o output off on on 1k ? a v in a a load l : hk-10s100-4500 (made by toho co.) d :erc80-004 (made by fuji electronics co.)
chopper regulators pq1cy1032z fig.3 overcurrent protection characteristics (typical value) fig.4 efficiency vs. input voltage fig.5 switching current vs. output saturation voltage fig.6 operating dissipation current vs. input voltage fig.7 reference voltage fluctuation vs. junction temperature fig.2 power dissipation vs. ambient temperature p d : with infinite heat sink power dissipation p d (w) 0 5 10 15 20 25 40 30 35 ? 200 25507585 ambient temperature t a ( c) note) oblique line portion:overheat protection may operate in this area. output voltage v o (v) output current i o (a) 0 1 2 3 4 5 6 0123 5 44.5 0.5 1.5 2.5 3.5 t a = 25 c v in = 12v v o = 5v shutdown operating efficiency (%) input voltage v in (v) 50 60 70 80 90 100 0 102030405 152535 v o = 12v, i o = 1a v o = 5v, i o = 3a t j = 25 c v o = 5v, i o = 1a v o = 12v, i o = 3a switching current i sw (a) 0 0.5 1 1.5 2 2.5 3 3.5 4 00.511.5 0.25 0.75 1.25 1.75 2 output saturation voltage v sat (v) t j = 25 c operating disspation current i q' (ma) input voltage v in (v) 0 5 10 15 0 1020305 15253540 t j = 25 c v o = 5v no load i o = 1a i o = 3a reference voltage fluctuation (%) ? 1.5 ? 1 0 ? 0.5 0.5 1 1.5 ? 25 0 5 0 100 12525 75 junction temperature t j ( c) v in = 12v v o = 5v
chopper regulators pq1cy1032z fig.8 load regulation vs. output current fig.9 line regulation vs. input voltage fig.10 oscillation frequency fluctuation vs. junction temperature fig.11 overcurrent detecting level fluctuation vs. junction temperature fig.12 on threshold voltage vs. junction temperature fig.13 overcurrent shutdown threshold voltage vs. junction temperature load regulation r eg l (%) output current i o (a) ? 0.5 0 1 0.5 1.5 0 0.5 1 1.5 2 2.5 3 t j = 25 ? c v in = 12v v o = 5v line regulation r eg i (%) input voltage v in (v) ? 0.5 0 1 0.5 1.5 0 102030 15 25 35 540 t j = 25 c v o = 5v i o = 0.5a oscillation frequency fluctuation (%) ? 6 ? 4 ? 2 0 2 4 6 ? 25 0 2 5 5 0 7 5 100 125 junction temperature t j ( c) v in = 12v v o = 5v overcurrent detecting level fluctuation (%) ? 8 ? 6 ? 4 ? 2 0 2 4 8 6 ? 25 junction temperature t j ( c) 0 2 5 50 75 100 125 threshold voltage v th (on) , v thl , v thh (v) 0 0.5 1 1.5 2 2.5 3 ? 25 0 50 100 12525 75 junction temperature t j ( c) v in = 12v v thh v thl v th (on) overcurrent shutdown threshold voltage v thil (v) 3 3.5 4.5 5.5 5 4 6 ? 25 0 25 50 75 100 125 junction temperature t j ( c) v in = 12v
chopper regulators pq1cy1032z fig.14 power dissipation vs. ambient temperature (typical value) fig.15 block diagram fig.16 step down type circuit diagram power dissipation p d (w) 0 1 2 3 ? 200 25507585 ambient temperature t a ( c) cu area 3 600mm 2 cu area 900mm 2 cu area 400mm 2 cu area 115mm 2 material : glass-cloth epoxy resin size : 60 60 1.6mm cu thickness : 65 m pwb pwb cu voltage regulator ocsillation circuit q s r overcurrent detection circuit overheat detection circuit com on/off circuit soft start circuit _ + _ + f/f pwm comp. error amp. v ref _ + v s' 1 2 3 4 5 v in o adj v soft v out 12 l d 5 3 4 pq1cy1032z r 1 r 2 r s v o 5v c o c in c s v in + + 45 h 1 000 f r s 50k ? 220 f 8 to 35v 3k ? 1k ? on/off control signal load
chopper regulators pq1cy1032z fig.17 polarity inversion type circuit diagram 1 2 l d 5 3 4 pq1cy1032z r 1 r 2 c o c in v in v o ? 5v + + 65 h 2 200 f 220 f 5 to 30v 3k ? 1k ? on/off control signal load c s r s
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