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UCC3918DPG4 Datasheet(PDF) 2 Page - Texas Instruments |
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UCC3918DPG4 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 13 page UCC3918 LOW ONRESISTANCE HOT SWAP POWER MANAGER SLUS384B – NOVEMBER 1999 – REVISED JUNE 2000 2 www.ti.com functional block diagram 9 8 5 4 13 12 10 6 7 3 2 1 INTERNAL BIAS THERMAL SHUTDOWN ON TIME CONTROL 3% DUTY CYCLE CHARGE PUMP 16 15 14 VIN VIN VIN VOUT VOUT VOUT SHTDWN FAULT CT HEAT SINK GND PINS GND IFAULT IMAX CURRENT FAULT LEVEL OVERLOAD COMPARATOR OVERCURRENT COMPARATOR REVERSE COMPARATOR V OUT + 20mV CURRENT SENSE 1.5V H = OPEN MAXIMUM CURRENT LEVEL + + + + + + UDG–99153 absolute maximum ratings over operating free-air temperature (unless otherwise noted)†} Input Voltage 8 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOIC Power dissipation 2.5 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault output sink current 50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault output voltage VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output Current (dc) Internally Limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input Voltage SHTDWN, IFAULT, IMAX –0.3 V to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range Tstg –65 _C to 150_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating virtual junction temperature TJ –55 _C to 150_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature (soldering, 10 seconds) 300 _C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ‡ Unless otherwise indicated, voltages are reference to ground and currents are positive into, negative out of the specified terminal. Pulsed is defined as a less than 10% duty cycle with a maximum duration of 500 µs. Consult Packaging Section of Databook for thermal limitations and considerations of package. |
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