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r03ds0026ej0300 rev.3.00 page 1 of 12 nov 02, 2011 preliminary datasheet R2A20113ASP critical conduction mode pfc control ic description the r2a20113a controls a boost converter to provide an active power factor correction. the r2a20113a adopts critical conduction mode for power factor correction and realizes high ef ficiency and a low switching noise by zero current switching. because the zero current is detected by using the gnd current, the zcd auxilia ry winding is unnecessary. the feedback loop open detection, two mode overvoltage pr otection, overcurrent protection are built in the r2a20113a, and can constitute a power supply system of high reliability with few external parts. features ? absolute maximum ratings ? supply voltage vcc: 24 v ? operating junction temperature tjopr: ?40 to +150c ? electrical characteristics ? uvlo operation start voltage vh: 12 v ? 0.8 v ? uvlo operation shutdown voltage vl: 9.2 v ? 0.7 v ? uvlo hysteresis voltage hysuvl: 2.8 v ? 0.7 v ? functions ? boost converter control with critical conduction mode ? two mode overvoltage protection mode 1: dynamic ovp corresponding to a voltage rise by load change mode 2: static ovp corresponding to overvoltage in stable. ? feedback loop open detection ? overcurrent protection ? dynamic uvp corresponding to a voltage fall by load change ? off time control function (frequency limitter) ? package lineup: pb-free sop-8 (jedec) ordering information part no. package name package code package abbreviation taping abbreviation (quantity) R2A20113ASP#w5 ? prsp0008dj-a sp w (2,500 pcs/reel) r03ds0026ej0300 rev.3.00 nov 02, 2011
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 2 of 12 nov 02, 2011 pin arrangement (top view) fb 1 comp 2 rt 3 vref vcc out gnd cs 4 8 7 6 5 pin function pin no. pin name function 1 fb error amplifier input terminal 2 comp error amplifier output terminal 3 rt a resistor connection terminal for ramp current setting 4 vref reference voltage output terminal 5 cs zero current detection and overcurrent detection input terminal 6 gnd ground 7 out power mosfet drive terminal 8 vcc supply voltage terminal
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 3 of 12 nov 02, 2011 block diagram ?0.6v ovp & fb_low block fb gd disable (ovp & fb_low) 1v erroramp 60k vfb 1.04v ramp control vref logic block 5p 10p 4.1v 2.51v ? + ? + ? + 0v vref + ? dynamic ovp dynamic uvp + ? vfb 0.92v + ? vref 4 cs 5 rt 3 vcc 8 out 7 gnd 6 fb 1 comp 2 40 a on: 12v off: 9.2v uvlo vref: 5.02v comp discharge
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 4 of 12 nov 02, 2011 absolute maximum ratings (ta = 25c) item symbol ratings unit note power supply voltage vcc ?0.3 to +24 v ipk-snk-out 0.9 out terminal peak current ipk-src-out ?0.50 a 3 idc-snk-out 100 out terminal dc current idc-src-out ?50 ma comp terminal current icomp +1 ?1 ma rt terminal current irt ?60 to ?2 ? a vref terminal current iref ?5 ma vref terminal voltage vt-ref ?0.3 to vref + 0.3 v vref terminal load capacitor cref 0.1 to 1 ? f fb terminal voltage vt-fb ?0.3 to +5 v cs terminal voltage vcs ?5 to +0.3 v power dissipation pt 0.68 w 4 operating junction temperatur e tj-opr ?40 to +150 c storage temperature tstg ?55 to +150 c notes: 1. rated voltages are with reference to the gnd terminal. 2. for rated currents, inflow to the ic is indicated by (+), and outflow by (?). 3. shows the transient current when driving a capacitive load. 4. in case of R2A20113ASP (sop): ? ja = 120c/w this value is a thing mounting on 40 ? 40 ? 1.6 [mm], a glass epoxy bo ard of wiring density 10%.
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 5 of 12 nov 02, 2011 electrical characteristics (ta = 25c, vcc = 12 v, cs = 0.1 v, fb = comp, rrt = 200 k ? ) item symbol min typ max unit test conditions uvlo turn-on threshold vuvlh 11.2 12 12.8 v uvlo turn-off threshold vuvll 8.5 9.2 9.9 v uvlo hysteresis hysuvl 2.1 2.8 3.5 v standby current istby ? 130 250 ? a vcc = vuvlh ? 0.2 v supply operating current icc ? 1.8 2.6 ma reference voltage vref 4.945 5.020 5.095 v isource = 0 ma line regulation vref-line ? 5 20 mv isource = 0 ma vcc = 10 v to 24 v load regulation vref-load ? 5 20 mv isource = 0 ma to ?5 ma temperature stability dvref ? ? 80 ? ppm/c ta = ?40 to +125c * 1 vref ovp-vref threshold voltage ovp-vref vref+ 0.2 vref+ 0.4 vref+ 0.6 v feedback voltage vfb 2.472 2.510 2.548 v fb-comp short input bias current ifb ?0.40 ?0.15 ?0.05 ? a measured pin: fb open loop gain av ? 65 ? db * 1 upper clamp voltage vclamp-comp 3.65 4.10 4.3 v fb = 2.0 v comp: open low voltage vl-comp ? 0.1 0.3 v fb = 3.0 v comp: open source current isrc-comp ?13.5 ?10 ?6 ? a fb = 1 v comp = 2.5 v sink current isnk-comp 6 10 13.5 ? a fb = 3.5 v comp = 2.5 v error amplifier transconductance gm 25 46 75 ? s fb = 2.45v ? 2.55 v comp = 2.5 v ramp offset voltage voff_ramp ? 1.0 ? v * 1 ramp amplitude dvramp 2.90 3.1 3.3 v * 2 rt rt voltage v-rt 1.9 2.0 2.1 v zcd threshold voltage vzcd ?4 0 4 mv zero current detector input bias current ics ?58 ?42 ?25 ? a vcs = 0 v restart restart time delay tstart 75 150 330 ? s fb = 2.0 v, comp = 2.5 v off time control minimum off time toff-min 1.0 1.4 1.8 ? s notes: * 1 design spec * 2 dvramp = vclamp_comp ? voff_ramp
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 6 of 12 nov 02, 2011 electrical characteristics (cont.) (ta = 25c, vcc = 12 v, cs = 0.1 v, fb = comp, rrt = 200 k ? ) item symbol min typ max unit test conditions rise time tr-out ? 35 100 ns cl = 1000 pf tr 90% 10% fall time tf-out ? 35 100 ns cl = 1000 pf 90% 10% tf vol1-out ? 0.08 0.2 v isink = 20 ma out low voltage vol2-out ? 0.05 0.7 v isink = 10 ma, vcc = 5 v out out high voltage voh-out 11.5 11.8 ? v isource = ?20 ma over current protection ocp threshold voltage vocp ?0.63 ?0.6 ?0.57 v dynamic ovp threshold voltage vdovp ? vfb ? 1.040 ? v * 1 dynamic uvp threshold voltage vduvp ? vfb ? 0.920 ? v * 1 static ovp threshold voltage vsovp vfb ? 1.075 vfb ? 1.090 vfb ? 1.105 v static ovp hysteresis hys-sovp 50 100 150 mv fb low detect threshold voltage vfblow 0.25 0.3 0.35 v over & under voltage protection fb low detect hysteresis hysfblow 0.16 0.20 0.24 v note: * 1 design spec
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 7 of 12 nov 02, 2011 waveforms 1. start-up out vref good (internal signal) comp fb 0.5v (vfblow + hysfblow) vref vcc 12v (vuvlh) 5.02v (vref) 3.6v 1.0v (voff_ramp) 2. shut-down out normal operation 9.2v (vuvll) vcc
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 8 of 12 nov 02, 2011 3. gate drive output ramp (internal signal) 0v (vzcd) 0v (vzcd) out ramp+1v (internal signal) ramp (internal signal) ramp+1v (internal signal) comp il cs 0.44 s 0ma enlargement around zero-current detection comp out il cs
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 9 of 12 nov 02, 2011 4. overvoltage protection (ovp) vfb out comp hys-sovp: 100mv vsovp: vfb 1.09v out off (internal signal) 5. fb low detection vfb out 0.3v (vfblow) 0.5v (vfblow + hysfblow) fb low (internal signal) comp
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 10 of 12 nov 02, 2011 6. overcurrent protection (ocp) 0v (vzcd) ?0.6v (vocp) comp cs il out ramp (internal signal) ramp+1v (internal signal) 7. off time control (frequency limiter) 0a 1.4 s (toff_min) il zcd_pulse (internal signal) zcd_mask (internal signal) 1.4 s (toff_min) 1.4 s (toff_min) out
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 11 of 12 nov 02, 2011 system diagram from out to q1 gate q1 6m pfc out (390v dc) 220 (450v) vrb1 l1 d1 100 1 1000p 0.1 1.0 0.022 0.047 aux vref 4 cs rt vcc 8 out 7 gnd 6 fb 1 comp 2 200k 200k 3 5 gnd 0.05 (5w) + r2a20113a
R2A20113ASP preliminary r03ds0026ej0300 rev.3.00 page 12 of 12 nov 02, 2011 package dimensions note) 1. dimensions" * 1 (nom)"and" * 2" do not include mold flash. 2. dimension" * 3"does not include trim offset. 0.10 1.27 0.56 5.84 6.20 0.41 0.35 4.98 max nom min 4.80 3.99 3.81 dimension in millimeters symbol reference 1.73 0.89 0.64 0.41 3.94 1.47 0.25 0.15 0.10 0.49 0.25 0.20 0.19 5.99 8 0 0.25 1.03 4.93 e h e l a d e a 2 a 1 b p b 1 c x y z l 1 c 1 previous code jeita package code renesas code prsp0008dj-a ? mass[typ.] 0.073g p-sop8-3.94x4.93-1.27 c terminal cross section (ni/pd/au plating) detail f l 5 8 4 f * 1 * 2 * 3 m x 1 index mark s s y a d e z e l 1 a 1 b p b p h e
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