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SC1405B

HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER; ? Fast rise and fall times (15ns with 3000pf load)\n? 14ns max. Propagation delay (BG going low)\n? Adaptive/programmable shoot-through protection\n? Wide input voltage range (4.5-25V)\n? Programmable delay between MOSFET’s\n? Power saving asynchronous mode control\n? Output overvoltage protection/overtemp shutdown\n? Under-Voltage lock-out and power ready signal\n? Less than 10μA stand-by current (EN=low)\n? Power ready output signal\n? Improved drive version of SC1405TS\n? High frequency (to 1.2MHz) operation allows use of small inductors and low cost caps in place of electrolytics;

DESCRIPTION\nThe SC1405B is a Dual-MOSFET Driver with an internal Overlap Protection Circuit to prevent shoot-through from VIN to GND in the main switching and synchronous MOSFET’s. Each driver is capable of driving a 3000pF load in 15ns rise/fall time and has ULTRAFAST propagation delay from input transition to the gate of the power FET’s. The Overlap Protection circuit ensures that the second FET does not turn on until the top FET source has reached a voltage low enough to prevent shoot-through. The delay between the bottom gate going low to the top gate transitioning to high is externally programmable via a capacitor for optimal reduction of switching losses at the operating frequency.FEATURES\n? Fast rise and fall times (15ns with 3000pf load)\n? 14ns max. Propagation delay (BG going low)\n? Adaptive/programmable shoot-through protection\n? Wide input voltage range (4.5-25V)\n? Programmable delay between MOSFET’s\n? Power saving asynchronous mode control\n? Output overvoltage protection/overtemp shutdown\n? Under-Voltage lock-out and power ready signal\n? Less than 10μA stand-by current (EN=low)\n? Power ready output signal\n? Improved drive version of SC1405TS\n? High frequency (to 1.2MHz) operation allows use of small inductors and low cost caps in place of electrolyticsAPPLICATIONS\n? High Density/Fast transient power supplies\n? Motor Drives/Class-D amps\n? Portable computers

SC1405B

HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER

DESCRIPTION TheSC1405BisaDual-MOSFETDriverwithaninternalOverlapProtectionCircuittopreventshoot-throughfromVINtoGNDinthemainswitchingandsynchronousMOSFET’s.Eachdriveriscapableofdrivinga3000pFloadin15nsrise/falltimeandhasULTRAFASTpropagationdelayfromin

SC1405B

High Speed Synchronous Power MOSFET Smart Driver

SC1405BTS.TR

High Speed Synchronous Power MOSFET Smart Driver

SC1405DITSTRT

SEMTECH
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