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irs 2505l pb f pf c tm sot -23 boost pfc control ic features ? critical - conduction mode pfc control ? high pf and ultra - low thd ? wide load and line range ? regulated and programmable dc bus voltage ? no secondary winding required ? mosfet cycle - by - c ycle over - current protection ? dc bus over - voltage protection ? low emi gate drive ? ultra - low start - up current ? 20.8v internal zener clamp on vcc ? excellent esd and latch immunity ? rohs compliant ? 5 - pin sot - 23 package applications ? off - line power supply ? electronic ballast ? led power supply description the irs2505 is a control ic for boost - type pfc circuit s operating in critical - conduction mode. the ic incorporates a free - running frequency oscillator with on - and off - time control of the boost power mosfet with out the need for a secondary winding. also included in the design is over - voltage protection of the dc bus and cycle - by - cycle over - current protection of the power mosfet. micro - power start - up current and an internal 20.8v zener clamp at vcc are provided to simplify the external vcc supply circuitry. esd and latch immune cmos technology enables a rugged monolithic ic construction. package options 5 lead sot23 1 3 5 4 irs 2505 cmp pfc vbus vcc dc bus (+) 2 com dc bus ( - ) rect (+) rect ( - ) vcc ( - ) vcc (+) base part number pac kage type standard pack orderable part number form quantity ir s25 05 l pbf 5 l - sot - 23 tape and reel 3 000 IRS2505LTRPBF ordering information application diagram 1 www.irf.com ? 201 3 international rectifier july 22, 2013
irs 2505l p bf timing diagram pfc ilpfc vdrain t t t vcc vpfczx- vpfcoff dc bus on-time off-time 1 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l p bf qualification information ? qualification level industrial ?? (per jedec jesd 47e) comments: this family of ics has passed jedec?s industrial qualification. ir?s consumer qualification level is granted by extension of the higher industrial level. moisture sensitivity level sot - 23 msl 1 ??? (per ipc/jedec j - std - 020c) esd machine m odel class b (per jedec standard eia/jesd22 - a115 - a) human body model class 2 (per eia/jedec standard jesd22 - a114 - b) ic latch - up test class i, level a (per jesd78a) rohs compliant yes ? qualification standards can be found at international rectifier?s 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. ??? hig her msl ratings may be available for the specific package types listed here. please contact your international rectifier sales representative for further information. 2 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pbf absolute maximum ratings absolute maximum ratings indicate sustained limits beyo nd which damage to the device may occur. all voltage parameters are absolute voltages referenced to com , all currents are defined positive into any pin. the thermal resistance and power dissipation ratings are measured under board mounted and still air c onditions. symbol definition min. max. units vpfc pfc pin voltage - 0.3 vcc + 0.3 v vbus vbus pin voltage - 0.3 vcc + 0.3 icc vcc pin supply current ? --- 25 ma icmp cmp pin current ?? --- 1 pd package power dissipation @ ta +25 oc sot - 23 5l --- 250 m w r ja thermal resistance, junction to ambient sot - 23 5l --- 191 oc/w tj junction temperature - 55 150 oc ts storage temperature - 55 150 tl lead temperature (soldering, 10 seconds) --- 300 ? this ic contains a voltage clamp structure between th e chip vcc and com which has a nominal breakdown voltage of 20.8v. t his supply pin should not be driven by a dc, low impedance power source greater than the vclamp specified in the electrical characteristics section. ?? this ic contains a voltage clam p structure between the cmp and com which has a nominal breakdown voltage of 10.2v. this pin should not be driven by a dc, low impedance power source greater than the v z cmp specified in the electrical characteristics section. 3 www.irf.com ? 201 3 international re ctifier july 22, 2013
irs 2505l pbf recommended operating co nditions for proper operation the device should be used within the recommended conditions. symbol definition min. max. units vcc supply voltage vccuv+ + 0. 5 v vclamp v icc supply current 0 10 ma vcmp cmp pin voltage 0 vzcmp v tj junction temperature - 40 125 oc recommended component values symbol component min. max. units ccmp compensation capacitor value 470 --- nf cvcc vcc filter capacitor 100 --- nf cvbus vbus pin filter capacitor 1.0 --- nf 4 www.irf.com ? 201 3 international re ctifier july 22, 2013
irs 2505l pb f electrical characteristics vcc=14 v, cvcc = 0.1uf , ccmp=0.68uf, c pfc =1 n f, cvbus=10nf, and ta= 25 c unless otherwise specified. symbol definition min typ max units test conditions supply characteristics vclamp vcc clamp voltage 19.8 20.8 21.8 v icc = 19 ma vccuv+ rising vcc under - voltage lock - out threshold 10.0 11.1 12.0 n/a vccuv - falling vcc under - voltage lock - out threshold 7.0 7.9 9.0 vccuvhys vcc uvlo hysteresis --- 3.2 --- iqccuv micro - power start - up vcc supply current --- --- 6 0.0 a vcc = vccuv+ - 5 00mv rising icc50khz vcc current @ 50khz --- 2.5 --- ma mosfet = irf840a pfc characteristics vbusreg vbus pin regulation voltage 4.02 4.1 4.18 v vbusov+ vbus pin ovp threshold --- 4.47 --- vbusov - vbus pin ovp fault reset threshold --- 4.26 --- vbusoc+ vbus pin over - current thre shold --- 0.56 --- vbus = 3v twd watch dog timer pulse interval --- 125 --- i cmp+ cmp pin ota io+ --- 30 --- a vbus=3.5v,vcmp=0v i cmp - cmp pin ota io - --- - 30 --- vbus=4.5v,vcmp= 5v v cmpoh ota output voltage swing (high state) 9.9 10.2 11.5 v vbus= 3.5v v cmpol ota output voltage swing (low state) --- 0 --- vbus=4.5v vcmpflt ota output voltage in fault mode --- 0 --- vzcmp cmp pin clamp voltage 9.9 10.2 11.5 vbus=3.5v gate driver output characteristics (pfc) vpfcon gate high voltage --- vcc - -- v vpfcoff gate low voltage --- 0.59 --- tf output fall time --- 20 --- nsec falling, 80 % to 20% io - output sink current --- 450 --- ma 5 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pb f pin assignments and definitions 1 3 5 4 irs 2505 cmp pfc vbus vcc 2 com pin name description 1 cmp pfc error amplifier compensation 2 com ic power and signal ground 3 vcc logic and gate drive supply voltage 4 pfc pfc gate driver output and zero - crossing detection 5 vbus dc bus sensing input, ovp and oc p 6 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pb f p ackage details: 5 lead sot23 7 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pb f tape and reel details: 5 lead sot23 8 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pb f tape and reel details: 5 lead sot23 9 www.irf.com ? 201 3 international rectifi er july 22, 2013
irs 2505l pb f part marking information : 5 lead sot23 top marking bottom marking the information provided in this document is believed to be accurate and reliable. however, international rectifier assumes n o responsibility for the consequences of the use of this information. international rectifier assumes no responsi bility for any infringement of patents or of other rights of third parties which may result from the use of this information. no license is granted by implication or oth erwise under any patent or patent rights of international rectifier. the specificatio ns mentioned in this document are subject to change without notice. this document supersedes and replaces all information previously supplied. for technical support, please contact ir?s technical assistance center http://www.irf.com/technical - info/ world headquarters: 233 kansas st., el segundo, california 90245 tel: (310) 252 - 7105 10 www.irf.com ? 201 3 international rectifi er july 22, 2013

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