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irs2983 spbf 1 www.irf.com ? 20 1 3 international rectifier dec ember 10 , 201 3 led flyback control ic features ? flyback led driver ? critical - conduction / transition mode operation ? primary constant power control ? burst mode operation at light load ? over - current protection ? micropower startup (150 ? a) ? low quiescent current (2.5 ma) ? lat ch immunity and esd protection ? open load over voltage protection ? noise immunity typical applications ? led drivers product summary topology flyback v offset n/a v out n/a i o+ & i o - (typical) 200 ma / 4 00 ma t on & t off (typical) 60 ns / 30 ns dead time (typical) n/a package 8 - lead soic irs2 983 spb f ordering information base part number package type standard pack complete part number form quantity irs2983 spbf s o8n tube/bulk 95 IRS2983SPBF tape and reel 2500 irs2983s trpbf
irs2983 spbf 2 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 table of contents page description 3 qualification inform ation 4 absolute maximum ratings 5 recommended operating conditions 5 electrical characteristics 6 functional block diagram 8 state diagram 9 input/output pin equivalent circuit diagram 10 lead definitions 11 lead assignments 11 application inform ation and additional details 12 package details 15 tape and reel details 16 part marking information 17 irs2983 spbf 3 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 description the irs2983 is a fully integrated, fully protected smps control ic designed to drive flyback converter led drivers. the irs2983 features include primary side power regulation, which allows a basic converter to be implemented without the need for an opto isolator in a flyback led driver with a fixed load enabling a low cost, high reliability isolated led driver design to be realized. the irs2983 may also be used in converters that do include secondary feedback through an opto isolator. other features of the irs2983 include a high voltage startup enabling vcc supply to be derived initially from the high voltage dc bus until the auxiliary inductor winding is able to take over. the irs2983 operates in critical conduction (crcm) or discontinuous (dcm) modes and is fully protected against open and short circuit as well as inductor saturation. the irs2983 may be used in single stage flyback led drivers with an unsmoothed dc bus to obtain high power factor and low thd. typical connection diagram dfb t1 br1 cin m1 rg cvout rcs cf rf dvcc ic1 rin rdc rzx1 ac line input cdc ccomp cs com out vcc comp vdc hv zx irs2983 7 6 5 1 2 3 4 8 rzx2 cvcc rout radj dsn rsn csn ci dz rz qvcc cs irs2983 spbf 4 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 qualification information ? qualification level industrial ?? comments: this family of ics has passed jedecs industrial qualification. irs consumer qualification level is granted by extension of the higher industrial level. moisture sensitivity level soic8 msl2 ??? 260c (per ipc/jedec j - std - 020) esd machine model class b (per jedec standard jesd22 - a115) h uman body model class 1c (per eia/jedec standard eia/jesd22 - a114) ic latch - up test class i , level a (per jesd78) rohs compliant yes ? qualification standards can be found at international rectifiers web site http:// www.irf.com/ ?? higher qualification ratings may be available should the user have such requirements. please contact your international rectifier sales representative for further information. ??? higher msl ratings may be available for the specific pac kage types listed here. please contact your international rectifier sales representative for further information. irs2983 spbf 5 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. all voltage parameters are absolute voltages referenced to com, all currents are defined positive into any lead. the thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. symbol definition mi n. max. units v cc ic low voltage supply ? out gate driver output voltage - 0.3 v cc + 0.3 io max maxim um allowable output current (out ) due to external power transistor m iller effect - 800 600 ma i cc vcc current 0 25 ma v hv hv pin voltage - 0.3 600 v v comp comp pin voltage - 0.3 v cc + 0.3 v dc vdc pin voltage v zx zx pin voltage i comp comp pin current - 5 5 ma i zx zx pin current i cs cs pin current p d package power dissipation @ ta ? ? ? ja thermal resistance, ju nction to ambient (8 - pin s oic) --- 200 oc/w t j junction temperature - 55 150 oc t s storage temperature - 55 150 t l lead temperature (soldering, 10 seconds) --- 300 ? this ic contains a zener clamp structure between the chip vcc and com which has a nominal breakdown voltage of 20v. this supply pin should not be driven by a dc, low impedance power source greater than the vclamp specified in the electrical characteristics section. recommended operating conditions for proper operation the device should be used within recommended conditions. symbol definition min. max. units v cc supply voltage v ccuv+ 18 v i cc v cc supply current note 2 10 ma i cs cs pin current - 1 1 i zx zx pin current v dc vdc pin voltage 0 6 .0 v v cs vcs pin voltage 0 .1 1.3 t j junction temperature - 25 125 oc irs2983 spbf 6 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 electrical characteristics v cc =14v +/- 0.25v, cout = 1000pf, v comp = v oc = vbus = vzx = 0v, t a =25 ? c unless otherwise specified symbol definition min typ max units test conditions supply characteristics v ccuv + v cc supply undervoltage positive going threshold 11.5 12.5 13.5 v v ccuv - v cc supply undervoltage negative going threshold 9.5 10.5 11.5 v uvhys v cc supply undervoltage lockout hysteresis 1.5 2.0 3.0 i qccuv uvlo mode v cc quiescent current --- 150 --- ? cc v cc supply current --- 2.5 5.0 ma v clamp v cc zener clamp voltage 19.8 20.8 21.8 v i cc = 10ma high voltage startup charac teristics v hvsmin minimum startup voltage 3 0.0 --- --- i hv_charge vcc charge current 1 2 --- ma vcc< v ccuv - hv=100v~400v i hvs_off high voltage start - up circuit off state leakage current --- --- 50 ? error amplifier characteristics i comp source comp pin error amplifier output current sourcing --- 30 --- ? comp sink comp pin error amplifier output current sinking --- 30 --- v compoh error amplifier output voltage swing (high state) --- 13.5 --- v v compol error amplifier output volta ge swing (low state) --- 2.5 --- gbd v compflt error amplifier output voltage in fault mode --- 0 --- i vbus input bias current --- - 1 - -- ? control characteristics v zx+ zx pin threshold voltage (arm) 1.40 1.54 1.68 v v zx - zx pin thres hold voltage (trigger) 0.52 0. 60 0.68 v pref power regulation reference --- 1.00 --- k mult multiplier gain 1.90 2.00 2.10 vcs=0.5v t blank oc pin current - sensing blank time 160 200 264 ns vbus=2.5v comp=4.0v cs=1.5v t wd gate drive restart pulse int erval 6 0 100 135 ? onmin pwm minimum on time 136 167 198 n s t onmax pwm maximum on time 22 32 42 ? irs2983 spbf 7 www.irf.com ? 20 1 3 internati onal rectifier dec ember 10 , 201 3 ( o h f w u l f d o & |