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IR3651SPBF Datasheet(PDF) 5 Page - International Rectifier |
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IR3651SPBF Datasheet(HTML) 5 Page - International Rectifier |
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IR3651SPbF 10/11/2006 Recommended Operating Conditions Parameter SYM Test Condition Min TYP MAX Unit s Reference Voltage Feedback Voltage VFB 1.25 V 0 oC<Tj<125oC -1.5 +1.5 % Accuracy -40 oC<Tj<125oC, Note1 -3 +1.5 % Fb Voltage Line Regulation LREG 5V<Vcc<12V 2.0 mV Supply Current VCC Supply Current (Stat) ICC(Static) SS=0V, No Switching 6 7 mA VCC Supply Current (Dyn) ICC(Dynamic) Fs=200kHz, CLOAD=1.5nF 6 7 mA DRVcc Supply Current (Stat) IC(Static) SS=0V, No Switching 0.3 0.5 mA DRVcc Supply Current (Dyn) IC(Dynamic) Fs=200kHz, CLOAD=1.5nF 4 5 mA Vb Supply Current (Stat) Ib(Static) SS=0V, No Switching 0.3 0.5 mA Vb Supply Current (Dyn) Ib(Dynamic) Fs=200kHz, CLOAD=1.5nF 4.5 5.5 mA Under Voltage Lockout VCC-Start-Threshold VCC_UVLO(R) Supply ramping up 4.0 4.17 4.35 V VCC-Stop-Threshold VCC_UVLO(F) Supply ramping down 3.75 4.1 V VCC-Hysteresis Supply ramping up and down 0.15 0.25 0.3 V DRVcc-Start-Threshold DRcc_UVLO(R) Supply ramping up 8.3 9 9.7 V DRVcc-Stop-Threshold DRVcc_UVLO(F) Supply ramping down 7.5 8.2 8.9 V DRVCc-Hysteresis Supply ramping up and down 0.6 0.9 V Vb-Start-Threshold Vb_UVLO(R) Supply ramping up 8.3 9 9.7 V Vb-Stop-Threshold Vb_UVLO(F) Supply ramping down 7.5 8.2 8.9 V Vb-Hysteresis Supply ramping up and down 0.6 0.9 V Oscillator Frequency FS Rt=120K Rt=51K 170 340 200 400 230 460 kHz Ramp Amplitude Vramp Note2 1.25 V Min Duty Cycle Dmin Fb=2V 0 % Min Pulse Width Dmin(ctrl) Fs=200kHz, Note2 200 ns Max Duty Cycle Dmax Fs=200kHz, Fb=1.2V Fs=400kHz, Fb=1.2V 80 70 % Sync Frequency Range Sync(Fs) 20% above free running freq 480 kHz Sync Pulse Duratin Sync(puls) 200 ns Sync high Level Threshold Sync(H) 2 V Sync Low Level Threshold Sync(L) 0.8 V Electrical Specifications Unless otherwise specified, these specifications apply over V cc=5V; DRVcc=Vb=12V, 0 oC<T j< 125 oC 5 Symbol Definition Min Max Units Vbus Converting Voltage 12 75 V Vcc Supply Voltage 4.5 13.2 V DRVcc Supply Voltage 10 16 V Vb to Vs Supply Voltage 10 16 V Fs Operating Frequency 100 400 kHz Tj Junction Temperature -40 125 oC |
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