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IR3840M Datasheet(PDF) 5 Page - International Rectifier |
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IR3840M Datasheet(HTML) 5 Page - International Rectifier |
5 / 32 page 06/18/09 IR3840MPbF 5 Recommended Operating Conditions Parameter Symbol Test Condition Min TYP MAX Units Power Loss Power Loss Ploss Vcc=5V, Vin=12V, Vo=1.8V, Io=12A, Fs=600kHz, L=0.6uH, Note4 2.6 W MOSFET Rds(on) Top Switch Rds(on)_Top VBoot -Vsw =5V, ID=14A, Tj=25 0C 8.3 12.0 Bottom Switch Rds(on)_Bot Vcc=5V, ID=14A, Tj=25 0C 5.9 8.0 m Ω Reference Voltage Feedback Voltage VFB 0.7 V 0 oC<Tj<125oC -1.0 +1.0 Accuracy -40 oC<Tj<125oC, Note3 -2.0 +2.0 % Supply Current Vcc Supply Current (Standby) ICC(Standby) SS=0V, No Switching, Enable low 500 uA Vcc Supply Current (Dyn) ICC(Dyn) SS=3V, Vcc=5V, Fs=500kHz Enable high 15 mA Under Voltage Lockout Vcc-Start-Threshold VCC_UVLO_Start Vcc Rising Trip Level 4.06 4.26 4.46 Vcc-Stop-Threshold VCC_UVLO_Stop Vcc Falling Trip Level 3.76 3.96 4.16 Vcc-Hysteresis Vcc-Hys Supply ramping up and down 0.25 0.3 0.38 Enable-Start-Threshold Enable_UVLO_Start Supply ramping up 1.14 1.2 1.36 Enable-Stop-Threshold Enable_UVLO_Stop Supply ramping down 0.9 1.0 1.06 Enable-Hysteresis Enable_Hys Supply ramping up and down 0.16 0.2 0.25 V Enable leakage current Ien Enable=3.3V 18 uA Electrical Specifications Unless otherwise specified, these specification apply over 4.5V< V cc<5.5V, Vin=12V, 0 oC<T j< 125 oC. Typical values are specified at T a = 25 oC. Symbol Definition Min Max Units Vin Input Voltage 1.5 16 Vcc Supply Voltage 4.5 5.5 Boot to SW Supply Voltage 4.5 5.5 Vo Output Voltage 0.7 0.9*Vin V Io Output Current 0 12 A Fs Switching Frequency 225 1650 kHz Tj Junction Temperature -40 125 oC |
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