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IR3638SPBF Datasheet(PDF) 5 Page - International Rectifier |
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IR3638SPBF Datasheet(HTML) 5 Page - International Rectifier |
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5 / 15 page  IR3638SPbF 3/19/07 Recommended Operating Conditions Symbol Definition Min Max Units Vcc Supply Voltage 5 13.2 V Vc Supply Voltage Converter Voltage + 5V 20 V Tj Junction Temperature 0 125 oC 5 Parameter SYM Test Condition Min TYP MAX Units Supply Current VCC Supply Current (Static) ICC(Static) Enable=0V, No Switching 6.5 10 mA VCC Supply Current (Dynamic) ICC(Dynamic) Fs=400kHz, CLOAD=1.5nF 15 25 mA VC Supply Current (Static) IC(Static) Enable=0V, No Switching 3.3 10 mA VC Supply Current (Dynamic) IC(Dynamic) Fs=400kHz, CLOAD=1.5nF 13 20 mA Under Voltage Lockout Vcc-Start-Threshold Vcc UVLO(R) Supply ramping up 4.0 4.25 4.5 V Vcc-Stop-Threshold Vcc UVLO(F) Supply ramping down 3.8 4.0 4.2 Vcc-Hysteresis Vcc(Hyst) Supply ramping up and down 0.2 0.25 0.35 V Enable-Start-Threshold En UVLO (R) Supply ramping up 0.6 0.65 0.7 V Enable-Stop-Threshold En UVLO (F) Supply ramping down 0.56 0.6 0.66 Enable-Hysteresis En(Hyst) Supply ramping up and down 25 42.5 60 mV Fb_UVLO Fb_UVLO Fb ramping down 0.3 0.4 0.5 V Oscillator Frequency FS 360 400 440 kHz Ramp Amplitude Vramp Note1 1.25 V Min Duty Cycle Dmin Fb=1V, Vp=0.8V 0 % Max Duty Cycle Dmax Fs=400kHz, Fb=0.6V, Vp=0.8V 81 85 95 % Error Amplifier Fb Input Bias Current IFB1 SS=3V -0.1 -0.5 μA Fb Input Bias current IFB2 SS=0V 64 uA Vp Input Bias Current Ivp SS=3V -0.1 -0.5 uA Transconductance gm 440 1300 μmho Input Offset Voltage Vos Vp=0.8V -6 0 +6 mV Vp Common Mode Range Vcomn 0.6 1.5 V Electrical Specifications Unless otherwise specified, these specification apply over V cc=Vc=12V, 0 oC<T j< 125 oC Note1: Guaranteed by Design but not tested in production. |
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