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SI4750DY-E3 Datasheet(PDF) 3 Page - Vishay Siliconix |
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SI4750DY-E3 Datasheet(HTML) 3 Page - Vishay Siliconix |
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3 / 8 page  Si4750DY Vishay Siliconix New Product Document Number: 72219 S-32411—Rev. B, 24-Nov-03 www.vishay.com 3 SPECIFICATIONS Parameter Symbol Test Conditions Unless Otherwise Noted TA = 25_C, Vbb =14.5 V Min Typ Max Unit Load Switching Capabilities and Characteristics On-State Resistance rON IL = 2 A, Vbb = 9 to 14.5 V 34 50 mW Nominal Load Current IL(nom) 2 A Turn-On- Time to 90% VOUT tON 70 150 ms Turn-Off Time to 10% VOUT toff IL = 2 A CL = 2 mA 60 150 ms Slew Rate On dV/dton IL = 2 A, CL = 2 mA 0.22 V/ms Slew Rate Off −dV/dton 0.08 V/ms Operating Parameters Operating Voltage Vbb(on) 9 41 Undervoltage Shutdown of Charge Pump Vbb(under) TA = −40 to 85_C 6.7 8 V Undervoltage Restart of Charge Pump Vbb(ucp) 7.1 8 Standby Current Ibb(off) TA = −40 to 85_C, VIN = 0 V 70 mA Leakage Output Current (Included in Ibb(off)) IL(off) VIN = 0 V 0.5 mA Protection Features Initial Peak Short Circuit Current Limit IL(SC ) tm = 500 ms, TA = 25_C 21 A Initial Peak Short Circuit Current Limit IL(SCp) tm = 500 ms, TA = 25_C 19 A Thermal Overload Trip Temperature TJ IL = 2 A 150 _C Thermal Hysteresis THYS IL = 2 A 12 _C Reverse Battery Reverse Batteryb −Vbb 25 V Drain-Source Diode Voltage −VON VOUT > Vbb, TJ = 150_C 600 mV Input Input Turn-On Threshold Voltage VIN(T+) See Figure 1 2.3 3.0 Input Turn-Off Threshold Voltage VIN(T−) See Figure 1 0.8 V Input Threshold Hysteresis DVIN(T) 1 Off-State Input Current IIN(off) VIN = 0.7 V, See Figure 1 2 mA On-State Input Current IIN(on) VIN = 5 V, See Figure 1 2 mA Input Resistance RL Input Resistance, See Figure 1 3000 kW Notes a. Not to exceed TPULSE = 50 ns. b. Requires a 150-W resistor in GND connection. The reverse load current through the intrinsic drain-source diode has to be limited by the connected load. Pow- er dissipation is higher compared to normal operating conditions due to the voltage drop across the drain-source diode. The temperature protection is not active during reverse current operation. Input current has to be limited. (See Maximum Ratings, page 2.) http://www.campw.com/ |
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